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Results 1 - 77 of 77

The Wide-field Spectroscopic Telescope (WST) Science White Paper
- Volume 19, Issue 11 - article #2
- Vincenzo Mainieri, Richard I. Anderson, Jarle Brinchmann, Andrea Cimatti, Richard S. Ellis, Vanessa Hill, Jean-Paul Kneib, Anna F. McLeod, Cyrielle Opitom, Martin M. Roth, Paula Sanchez-Saez, Rodolfo Smilljanic, Eline Tolstoy, Roland Bacon, Sofia Randich, Angela Adamo, Francesca Annibali, Patricia Arevalo, Marc Audard, Stefania Barsanti, Giuseppina Battaglia, Amelia M. Bayo Aran, Francesco Belfiore, Michele Bellazzini, Emilio Bellini, Maria Teresa Beltran, Leda Berni, Simone Bianchi, Katia Biazzo, Sofia Bisero, Susanna Bisogni, Joss Bland-Hawthorn, Stephane Blondin, Julia Bodensteiner, Henri M. J. Boffin, Rosaria Bonito, Giuseppe Bono, Nicolas F. Bouche, Dominic Bowman, Vittorio F. Braga, Angela Bragaglia, Marica Branchesi, Anna Brucalassi, Julia J. Bryant, Ian Bryson, Innocenza Busa, Stefano Camera, Carmelita Carbone, Giada Casali, Mark Casali, Viviana Casasola, Norberto Castro, Marcio Catelan, Lorenzo Cavallo, Cristina Chiappini, Maria-Rosa Cioni, Matthew Colless, Laura Colzi, Sofia Contarini, Warrick Couch, Filippo D'Ammando, William d'Assignies D., Valentina D'Orazi, Ronaldo da Silva, Maria Giovanna Dainotti, Francesco Damiani, Camilla Danielski, Annalisa De Cia, Roelof S. de Jong, Suhail Dhawan, Philippe Dierickx, Simon P. Driver, Ulyana Dupletsa, Stephanie Escoffier, Ana Escorza, Michele Fabrizio, Giuliana Fiorentino, Adriano Fontana, Francesco Fontani, Daniel Forero Sanchez, Patrick Franois, Francisco Jose Galindo-Guil, Anna Rita Gallazzi, Daniele Galli, Miriam Garcia, Jorge Garcia-Rojas, Bianca Garilli, Robert Grand, Mario Giuseppe Guarcello, Nandini Hazra, Amina Helmi, Artemio Herrero, Daniela Iglesias, Dragana Ilic, Vid Irsic, Valentin D. Ivanov, Luca Izzo, Pascale Jablonka, Benjamin Joachimi, Darshan Kakkad, Sebastian Kamann, Sergey Koposov, Georges Kordopatis, Andjelka B. Kovacevic, Katarina Kraljic, Hanindyo Kuncarayakti, Yuna Kwon, Fiorangela La Forgia, Ofer Lahav, Clotilde Laigle, Monica Lazzarin, Ryan Leaman, Floriane Leclercq, Khee-Gan Lee, David Lee, Matt D. Lehnert, Paulina Lira, Eleonora Loffredo, Sara Lucatello, Laura Magrini, Kate Maguire, Guillaume Mahler, Fatemeh Zahra Majidi, Nicola Malavasi, Filippo Mannucci, Marcella Marconi, Nicolas Martin, Federico Marulli, Davide Massari, Tadafumi Matsuno, Jorryt Mattheee, Sean McGee, Jaroslav Merc, Thibault Merle, Andrea Miglio, Alessandra Migliorini, Ivan Minchev, Dante Minniti, Nuria Miret-Roig, Ana Monreal Ibero, Federico Montano, Ben T. Montet, Michele Moresco, Chiara Moretti, Lauro Moscardini, Andres Moya, Oliver Mueller, Themiya Nanayakkara, Matt Nicholl, Thomas Nordlander, Francesca Onori, Marco Padovani, Anna Francesca Pala, Swayamtrupta Panda, Mamta Pandey-Pommier, Luca Pasquini, Michal Pawlak, Priscila J. Pessi, Alice Pisani, Lukav C. Popovic, Loredana Prisinzano, Roberto Raddi, Monica Rainer, Alberto Rebassa-Mansergas, Johan Richard, Mickael Rigault, Antoine Rocher, Donatella Romano, Piero Rosati, Germano Sacco, Ruben Sanchez-Janssen, Andreas A. C. Sander, Jason L. Sanders, Mark Sargent, Elena Sarpa, Carlo Schimd, Pietro Schipani, Emiliano Sefusatti, Graham P. Smith, Lorenzo Spina, Matthias Steinmetz, Sandro Tacchella, Grazina Tautvaisiene, Christopher Theissen, Guillaume Thomas, Yuan-Sen Ting, Tony Travouillon, Laurence Tresse, Oem Trivedi, Maria Tsantaki, Maria Tsedrik, Tanya Urrutia, Elena Valenti, Mathieu Van der Swaelmen, Sophie Van Eck, Francesco Verdiani, Aurelien Verdier, Susanna Diana Vergani, Anne Verhamme, Joel Vernet, Giovanni Verza, Matteo Viel, Pauline Vielzeuf, Giustina Vietri, Jorick S. Vink, Carlos Viscasillas Vazquez, Hai-Feng Wang, Peter M. Weilbacher, Martin Wendt, Nicholas Wright, Quanzhi Ye, Christophe Yeche, Jiaxi Yu, Tayyaba Zafar, Stefano Zibetti, Bodo Ziegler, Igor Zinchenko
- https://arxiv.org/abs/2403.05398
A 3D view of dwarf galaxies with Gaia and VLT/FLAMES I. The Sculptor dwarf spheroidal. (arXiv:2304.11980v1 [astro-ph.GA])
- Volume 18, Issue 17 - article #1
- Eline Tolstoy, Ása Skúladóttir, Giuseppina Battaglia, Anthony G.A. Brown, Davide Massari, Michael J. Irwin, Else Starkenburg, Stefania Salvadori, Vanessa Hill, Pascale Jablonka, Maurizio Salaris, Thom van Essen, Carla Olsthoorn, Amina Helmi, John Pritchard
- http://arxiv.org/abs/2304.11980
Hidden deep in the halo: Selection of a reduced proper motion halo catalogue and mining retrograde streams in the velocity space. (arXiv:2302.00053v1 [astro-ph.GA])
- Volume 18, Issue 5 - article #2
- Akshara Viswanathan, Else Starkenburg, Helmer H. Koppelman, Amina Helmi, Eduardo Balbinot, Anna F. Esselink
- http://arxiv.org/abs/2302.00053
Gaia DR3 view of dynamical substructure in the stellar halo near the Sun⋆
- Volume 18, Issue 4 - article #4
- Emma Dodd, Thomas M. Callingham, Amina Helmi, Tadafumi Matsuno, TomÃ¡s Ruiz-Lara, Eduardo Balbinot, Sofie LÃ¶vdal
- Astronomy & Astrophysics
- https://www.aanda.org/10.1051/0004-6361/202244546
High-precision chemical abundances of Galactic building blocks. II. Revisiting the chemical distinctness of the Helmi streams. (arXiv:2203.11808v1 [astro-ph.GA])
- Volume 17, Issue 12 - article #4
- Tadafumi Matsuno, Emma Dodd, Helmer H. Koppelman, Amina Helmi, Miho N. Ishigaki, Wako Aoki, Jingkun Zhao, Zhen Yuan, Kohei Hattori
- http://arxiv.org/abs/2203.11808
Substructure in the stellar halo near the Sun. II. Characterisation of independent structures. (arXiv:2201.02405v1 [astro-ph.GA])
- Volume 17, Issue 2 - article #4
- Tomás Ruiz-Lara, Tadafumi Matsuno, S. Sofie Lövdal, Amina Helmi, Emma Dodd, Helmer H. Koppelman
- http://arxiv.org/abs/2201.02405
High-precision chemical abundances of Galactic building blocks. The distinct chemical abundance sequence of Sequoia. (arXiv:2111.15423v1 [astro-ph.GA])
- Volume 16, Issue 49 - article #4
- Tadafumi Matsuno, Helmer H. Koppelman, Amina Helmi, Wako Aoki, Miho N. Ishigaki, Takuma Suda, Zhen Yuan, Kohei Hattori
- http://arxiv.org/abs/2111.15423
Zero-metallicity Hypernova Uncovered by an Ultra-metal-poor Star in the Sculptor Dwarf Spheroidal Galaxy
- Volume 16, Issue 29 - article #11
- Ãsa SkÃºladÃ³ttir, Stefania Salvadori, Anish M. Amarsi, Eline Tolstoy, Michael J. Irwin, Vanessa Hill, Pascale Jablonka, Giuseppina Battaglia, Else Starkenburg, Davide Massari, Amina Helmi,, Lorenzo Posti
- The Astrophysical Journal Letters
- http://iopscience.iop.org/2041-8205/915/2/L30
Zero-metallicity hypernova uncovered by an ultra metal-poor star in the Sculptor dwarf spheroidal galaxy. (arXiv:2106.11592v3 [astro-ph.GA] UPDATED)
- Volume 16, Issue 26 - article #6
- Ása Skúladóttir, Stefania Salvadori, Anish M. Amarsi, Eline Tolstoy, Michael J. Irwin, Vanessa Hill, Pascale Jablonka, Giuseppina Battaglia, Else Starkenburg, Davide Massari, Amina Helmi, Lorenzo Posti
- http://arxiv.org/abs/2106.11592
Substructures, Resonances and debris streams. (arXiv:2105.09957v1 [astro-ph.GA])
- Volume 16, Issue 22 - article #3
- Emma Dodd, Amina Helmi, Helmer H. Koppelman
- http://arxiv.org/abs/2105.09957
The Sixth Data Release of the Radial Velocity Experiment (R AVE ). I. Survey Description, Spectra, and Radial Velocities
- Volume 15, Issue 31 - article #11
- Matthias Steinmetz, Gal MatijeviÄ, Harry Enke, TomaÅ¾ Zwitter, Guillaume Guiglion, Paul J. McMillan, Georges Kordopatis, Marica Valentini, Cristina Chiappini, Luca Casagrande, Jennifer Wojno, Borja Anguiano, Olivier BienaymÃ©, Albert Bijaoui, James Binney, Donna Burton, Paul Cass, Patrick de Laverny, Kristin Fiegert, Kenneth Freeman, Jon P. Fulbright, Brad K. Gibson, Gerard Gilmore, Eva K. Grebel, Amina Helmi, Andrea Kunder, Ulisse Munari, Julio F. Navarro, Quentin Parker, Gregory R. Ruchti, Alejandra Recio-Blanco, Warren Reid, George M. Seabroke, Alessandro Siviero, Arnaud Siebert, Milorad Stupar, Fred Watson, Mary E. K. Williams, Rosemary F. G. Wyse, Friedrich Anders, Teresa Antoja, Danijela Birko, Joss Bland-Hawthorn, Diego Bossini, Rafael A. GarcÃa, Ismael Carrillo, William J. Chaplin, Yvonne Elsworth, Benoit Famaey, Ortwin Gerhard, Paula Jofre, Andreas Just, Savita Mathur, Andrea Miglio, Ivan Minchev, Giacomo Monari, Benoit Mosser, Andreas Ritter, Thaise S. Rodrigues, Ralf-Dieter Scholz, Sanjib Sharma, Kseniia Sysoliatina (The Rave collaboration)
- The Astronomical Journal
- http://iopscience.iop.org/1538-3881/160/2/82
The Sixth Data Release of the Radial Velocity Experiment (R ave ). II. Stellar Atmospheric Parameters, Chemical Abundances, and Distances
- Volume 15, Issue 31 - article #12
- Matthias Steinmetz, Guillaume Guiglion, Paul J. McMillan, Gal MatijeviÄ, Harry Enke, Georges Kordopatis, TomaÅ¾ Zwitter, Marica Valentini, Cristina Chiappini, Luca Casagrande, Jennifer Wojno, Borja Anguiano, Olivier BienaymÃ©, Albert Bijaoui, James Binney, Donna Burton, Paul Cass, Patrick de Laverny, Kristin Fiegert, Kenneth Freeman, Jon P. Fulbright, Brad K. Gibson, Gerard Gilmore, Eva K. Grebel, Amina Helmi, Andrea Kunder, Ulisse Munari, Julio F. Navarro, Quentin Parker, Gregory R. Ruchti, Alejandra Recio-Blanco, Warren Reid, George M. Seabroke, Alessandro Siviero, Arnaud Siebert, Milorad Stupar, Fred Watson, Mary E. K. Williams, Rosemary F. G. Wyse, Friedrich Anders, Teresa Antoja, Danijela Birko, Joss Bland-Hawthorn, Diego Bossini, Rafael A. GarcÃa, Ismael Carrillo, William J. Chaplin, Yvonne Elsworth, Benoit Famaey, Ortwin Gerhard, Paula Jofre, Andreas Just, Savita Mathur, Andrea Miglio, Ivan Minchev, Giacomo Monari, Benoit Mosser, Andreas Ritter, Thaise S. Rodrigues, Ralf-Dieter Scholz, Sanjib Sharma, Kseniia Sysoliatina (The Rave collaboration)
- The Astronomical Journal
- http://iopscience.iop.org/1538-3881/160/2/83
The heavy-elements heritage of the falling sky. (arXiv:2007.08313v1 [astro-ph.GA])
- Volume 15, Issue 29 - article #12
- Alejandra Recio-Blanco, Emma Fernández Alvar, Patrick de Laverny, Teresa Antoja, Amina Helmi, Aurélien Crida
- http://arxiv.org/abs/2007.08313
Galactic potential constraints from clustering in action space of combined stellar stream data. (arXiv:2007.00356v1 [astro-ph.GA])
- Volume 15, Issue 27 - article #2
- Stella Reino, Elena M. Rossi, Robyn E. Sanderson, Elena Sellentin, Amina Helmi, Helmer H. Koppelman, Sanjib Sharma
- http://arxiv.org/abs/2007.00356
The Sixth Data Release of the Radial Velocity Experiment (RAVE) -- I: Survey Description, Spectra and Radial Velocities. (arXiv:2002.04377v1 [astro-ph.SR])
- Volume 15, Issue 7 - article #9
- Matthias Steinmetz, Gal Matijevic, Harry Enke, Tomaz Zwitter, Guillaume Guiglion, Paul J. McMillan, Georges Kordopatis, Marica Valentini, Cristina Chiappini, Luca Casagrande, Jennifer Wojno, Borja Anguiano, Olivier Bienayme, Albert Bijaoui, James Binney, Donna Burton, Paul Cass, Patrick de Laverny, Kristin Fiegert, Kenneth Freeman, Jon P. Fulbright, Brad K. Gibson, Gerard Gilmore, Eva K. Grebel, Amina Helmi, Andrea Kunder, Ulisse Munari, Julio F. Navarro, Quentin Parker, Gregory R. Ruchti, Alejandra Recio-Blanco, Warren Reid, George M. Seabroke, Alessandro Siviero, Arnaud Siebert, Milorad Stupar, Fred Watson, Mary E.K. Williams, Rosemary F.G. Wyse, Friedrich Anders, Teresa Antoja, Danijela Birko, Joss Bland-Hawthorn, Diego Bossini, Rafael A. Garcia, Ismael Carrillo, William J. Chaplin, Yvonne Elsworth, et al. (14 additional authors not shown)
- http://arxiv.org/abs/2002.04377
The Sixth Data Release of the Radial Velocity Experiment (RAVE) -- II: Stellar Atmospheric Parameters, Chemical Abundances and Distances. (arXiv:2002.04512v1 [astro-ph.SR])
- Volume 15, Issue 7 - article #10
- Matthias Steinmetz, Guillaume Guiglion, Paul J. McMillan, Gal Matijevic, Harry Enke, Georges Kordopatis, Tomaz Zwitter, Marica Valentini, Cristina Chiappini, Luca Casagrande, Jennifer Wojno, Borja Anguiano, Olivier Bienayme, Albert Bijaoui, James Binney, Donna Burton, Paul Cass, Patrick de Laverny, Kristin Fiegert, Kenneth Freeman, Jon P. Fulbright, Brad K. Gibson, Gerard Gilmore, Eva K. Grebel, Amina Helmi, Andrea Kunder, Ulisse Munari, Julio F. Navarro, Quentin Parker, Gregory R. Ruchti, Alejandra Recio-Blanco, Warren Reid, George M. Seabroke, Alessandro Siviero, Arnaud Siebert, Milorad Stupar, Fred Watson, Mary E.K. Williams, Rosemary F.G. Wyse, Friedrich Anders, Teresa Antoja, Joss Bland-Hawthorn, Diego Bossini, Rafael A. Garcia, Ismael Carrillo, William J. Chaplin, Yvonne Elsworth, Benoit Famaey, et al. (13 additional authors not shown)
- http://arxiv.org/abs/2002.04512
Multiple retrograde substructures in the Galactic halo: A shattered view of Galactic history
- Volume 14, Issue 46 - article #12
- Helmer H. Koppelman, Amina Helmi, Davide Massari, Adrian M. Price-Whelan, Tjitske K. Starkenburg
- Astronomy & Astrophysics
- http://feedproxy.google.com/~r/edp_aa/~3/78iBFmE2n_0/201936738
A Gaia -Enceladus Analog in the EAGLE Simulation: Insights into the Early Evolution of the Milky Way
- Volume 14, Issue 38 - article #18
- Lucas A. Bignone, Amina Helmi,, Patricia B. Tissera
- The Astrophysical Journal Letters
- http://iopscience.iop.org/2041-8205/883/1/L5
A Gaia-Enceladus analogue in the EAGLE simulation: insights into the early evolution of the Milky Way. (arXiv:1908.07080v1 [astro-ph.GA])
- Volume 14, Issue 34 - article #1
- Lucas A. Bignone, Amina Helmi, Patricia B. Tissera
- http://arxiv.org/abs/1908.07080
The R -Process Alliance: Discovery of a Low- α , r -process-enhanced Metal-poor Star in the Galactic Halo
- Volume 14, Issue 14 - article #19
- Charli M. Sakari, Ian U. Roederer, Vinicius M. Placco, Timothy C. Beers, Rana Ezzeddine, Anna Frebel, Terese Hansen, Christopher Sneden, John J. Cowan, George Wallerstein, Elizabeth M. Farrell, Kim A. Venn, Gal MatijeviÄ, Rosemary F. G. Wyse, Joss Bland-Hawthorn, Cristina Chiappini, Kenneth C. Freeman, Brad K. Gibson, Eva K. Grebel, Amina Helmi, Georges Kordopatis, Andrea Kunder, Julio Navarro, Warren Reid, George Seabroke, Matthias Steinmetz,, Fred Watson
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/874/2/148
The R-Process Alliance: Discovery of a low-alpha, r-Process-Enhanced Metal-Poor Star in the Galactic Halo. (arXiv:1903.01480v1 [astro-ph.SR])
- Volume 14, Issue 10 - article #12
- Charli M. Sakari, Ian U. Roederer, Vinicius M. Placco, Timothy C. Beers, Rana Ezzeddine, Anna Frebel, Terese Hansen, Christopher Sneden, John J. Cowan, George Wallerstein, Elizabeth M. Farrell, Kim A. Venn, Gal Matijevic, Rosemary F.G. Wyse, Joss Bland-Hawthorn, Cristina Chiappini, Kenneth C. Freeman, Brad K. Gibson, Eva K. Grebel, Amina Helmi, Georges Kordopatis, Andrea Kunder, Julio Navarro, Warren Reid, George Seabroke, Matthias Steinmetz, Fred Watson
- http://arxiv.org/abs/1903.01480
The tilt of the velocity ellipsoid in the Milky Way with Gaia DR2. (arXiv:1902.05268v1 [astro-ph.GA])
- Volume 14, Issue 7 - article #4
- Jorrit H. J. Hagen, Amina Helmi, P. Tim de Zeeuw, Lorenzo Posti
- http://arxiv.org/abs/1902.05268
The R-Process Alliance: First Release from the Northern Search for r-Process Enhanced Metal-Poor Stars in the Galactic Halo. (arXiv:1809.09156v1 [astro-ph.SR])
- Volume 13, Issue 39 - article #7
- Charli M. Sakari, Vinicius M. Placco, Elizabeth M. Farrell, Ian U. Roederer, George Wallerstein, Timothy C. Beers, Rana Ezzeddine, Anna Frebel, Terese Hansen, Erika M. Holmbeck, Christopher Sneden, Kim A. Venn, Christopher Evan Davis, Gal Matijevic, Rosemary F.G. Wyse, Joss Bland-Hawthorn, Cristina Chiappini, Kenneth C. Freeman, Brad K. Gibson, Eva K. Grebel, Amina Helmi, Georges Kordopatis, Andrea Kunder, Julio Navarro, Warren Reid, George Seabroke, Matthias Steinmetz, Fred Watson
- http://arxiv.org/abs/1809.09156
The formation of two of the major structural components of the Milky Way. (arXiv:1806.06038v1 [astro-ph.GA])
- Volume 13, Issue 25 - article #7
- Amina Helmi, Carine Babusiaux, Helmer H. Koppelman, Davide Massari, Jovan Veljanoski, Anthony G.A. Brown
- http://arxiv.org/abs/1806.06038
One Large Blob and Many Streams Frosting the nearby Stellar Halo in Gaia DR2
- Volume 13, Issue 24 - article #17
- Helmer Koppelman, Amina Helmi,, Jovan Veljanoski
- The Astrophysical Journal Letters
- http://iopscience.iop.org/2041-8205/860/1/L11
One large blob and many streams frosting the nearby stellar halo in Gaia DR2. (arXiv:1804.11347v1 [astro-ph.GA])
- Volume 13, Issue 18 - article #13
- Helmer H. Koppelman, Amina Helmi, Jovan Veljanoski
- http://arxiv.org/abs/1804.11347
Leaves on trees: identifying halo stars with extreme gradient boosted trees. (arXiv:1804.05245v1 [astro-ph.GA])
- Volume 13, Issue 16 - article #6
- Jovan Veljanoski, Amina Helmi, Maarten Breddels, Lorenzo Posti
- http://arxiv.org/abs/1804.05245
The dynamically selected stellar halo of the Galaxy with Gaia and the tilt of the velocity ellipsoid. (arXiv:1711.04766v1 [astro-ph.GA])
- Volume 12, Issue 46 - article #8
- Lorenzo Posti, Amina Helmi, Jovan Veljanoski, Maarten Breddels
- http://arxiv.org/abs/1711.04766
Improved distances to stars common to TGAS and RAVE. (arXiv:1707.04554v1 [astro-ph.GA])
- Volume 12, Issue 29 - article #5
- Paul J. McMillan, Georges Kordopatis, Andrea Kunder, James Binney, Jennifer Wojno, Tomaž, Zwitter, Matthias Steinmetz, Joss Bland-Hawthorn, Brad K. Gibson, Gerard Gilmore, Eva K. Grebel, Amina Helmi, Ulisse Munari, Julio F. Navarro, Quentin A. Parker, George Seabroke, Rosemary F. G. Wyse
- http://arxiv.org/abs/1707.04554
The RAVE-on Catalog of Stellar Atmospheric Parameters and Chemical Abundances for Chemo-dynamic Studies in the Gaia Era
- Volume 12, Issue 18 - article #15
- Andrew R. Casey, Keith Hawkins, David W. Hogg, Melissa Ness, Hans-Walter Rix, Georges Kordopatis, Andrea Kunder, Matthias Steinmetz, Sergey Koposov, Harry Enke, Jason Sanders, Gerry Gilmore, TomaÅ¾ Zwitter, Kenneth C. Freeman, Luca Casagrande, Gal MatijeviÄ, George Seabroke, Olivier BienaymÃ©, Joss Bland-Hawthorn, Brad K. Gibson, Eva K. Grebel, Amina Helmi, Ulisse Munari, Julio F. Navarro, Warren Reid, Arnaud Siebert,, Rosemary Wyse
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/840/1/59
A box full of chocolates: The rich structure of the nearby stellar halo revealed by Gaia and RAVE
- Volume 12, Issue 5 - article #17
- Amina Helmi, Jovan Veljanoski, Maarten A. Breddels, Hao Tian, Laura V. Sales
- Astronomy & Astrophysics
- http://feedproxy.google.com/~r/edp_aa/~3/ZqKGx_IQXjw/201629990
The Radial Velocity Experiment (RAVE): Fifth Data Release
- Volume 12, Issue 3 - article #6
- Andrea Kunder, Georges Kordopatis, Matthias Steinmetz, TomaÅ¾ Zwitter, Paul J. McMillan, Luca Casagrande, Harry Enke, Jennifer Wojno, Marica Valentini, Cristina Chiappini, Gal MatijeviÄ, Alessandro Siviero, Patrick de Laverny, Alejandra Recio-Blanco, Albert Bijaoui, Rosemary F. G. Wyse, James Binney, E. K. Grebel, Amina Helmi, Paula Jofre, Teresa Antoja, Gerard Gilmore, Arnaud Siebert, Benoit Famaey, Olivier BienaymÃ©, Brad K. Gibson, Kenneth C. Freeman, Julio F. Navarro, Ulisse Munari, George Seabroke, Borja Anguiano, MaruÅ¡a Å½erjal, Ivan Minchev, Warren Reid, Joss Bland-Hawthorn, Janez Kos, Sanjib Sharma, Fred Watson, Quentin A. Parker, Ralf-Dieter Scholz, Donna Burton, Paul Cass, Malcolm Hartley, Kristin Fiegert, Milorad Stupar, Andreas Ritter, Keith Hawkins, Ortwin Gerhard, W. J. Chaplin, G. R. Davies, Y. P. Elsworth, M. N. Lund, A. Miglio,, B. Mosser
- The Astronomical Journal
- http://iopscience.iop.org/1538-3881/153/2/75
The power of teaming up HST and Gaia: the first proper motion measurement of the distant cluster NGC 2419. (arXiv:1612.00183v1 [astro-ph.GA])
- Volume 11, Issue 49 - article #12
- Davide Massari, Lorenzo Posti, Amina Helmi, Giuliana Fiorentino, Eline Tolstoy
- http://arxiv.org/abs/1612.00183
A box full of chocolates: The rich structure of the nearby stellar halo revealed by Gaia and RAVE. (arXiv:1611.00222v1 [astro-ph.GA])
- Volume 11, Issue 45 - article #2
- Amina Helmi, Jovan Veljanoski, Maarten A. Breddels, Hao Tian, Laura V. Sales
- http://arxiv.org/abs/1611.00222
The selection function of the RAVE survey. (arXiv:1611.00733v1 [astro-ph.GA])
- Volume 11, Issue 45 - article #16
- Jennifer Wojno, Georges Kordopatis, Tilmann Piffl, James Binney, Matthias Steinmetz, Gal Matijevič, Joss Bland-Hawthorn, Sanjib Sharma, Paul McMillan, Fred Watson, Warren Reid, Andrea Kunder, Harry Enke, Eva K. Grebel, George Seabroke, Rosemary F. G. Wyse, Tomaž, Zwitter, Olivier Bienaymé, Kenneth C. Freeman, Brad K. Gibson, Gerry Gilmore, Amina Helmi, Ulisse Munari, Julio F. Navarro, Quentin A. Parker, Arnaud Siebert
- http://arxiv.org/abs/1611.00733
Building Blocks of the Milky Way's Accreted Spheroid. (arXiv:1609.04042v1 [astro-ph.GA])
- Volume 11, Issue 38 - article #3
- Pim van Oirschot, Else Starkenburg, Amina Helmi, Gijs Nelemans
- http://arxiv.org/abs/1609.04042
The Radial Velocity Experiment (RAVE): Fifth Data Release. (arXiv:1609.03210v1 [astro-ph.SR])
- Volume 11, Issue 38 - article #15
- Andrea Kunder, Georges Kordopatis, Matthias Steinmetz, Tomaz Zwitter, Paul McMillan, Luca Casagrande, Harry Enke, Jennifer Wojno, Marica Valentini, Cristina Chiappini, Gal Matijevic, Alessandro Siviero, Patrick de Laverny, Alejandra Recio-Blanco, Albert Bijaoui, Rosemary F. G. Wyse, James Binney, E. K. Grebel, Amina Helmi, Paula Jofre, Gerard Gilmore, Arnaud Siebert, Benoit Famaey, Olivier Bienayme, Brad K. Gibson, Kenneth C. Freeman, Julio F. Navarro, Ulisse Munari, George Seabroke, Borja Anguiano Jimenez, Warren Reid, Joss Bland-Hawthorn, Fred Watson, Ortwin Gerhard, G. R. Davies, Y. P. Elsworth, M. Lund, A. Miglio, W. J. Chaplin, B.Mosser
- http://arxiv.org/abs/1609.03210
The RAVE-on catalog of stellar atmospheric parameters and chemical abundances for chemo-dynamic studies in the Gaia era. (arXiv:1609.02914v1 [astro-ph.SR])
- Volume 11, Issue 38 - article #16
- Andrew R. Casey, Keith Hawkins, David W. Hogg, Melissa Ness, Hans Walter-Rix, Georges Kordopatis, Andrea Kunder, Matthias Steinmetz, Sergey Koposov, Harry Enke, Jason Sanders, Gerry Gilmore, Tomaž, Zwitter, Kenneth C. Freeman, Luca Casagrande, Gal Matijevič, George Seabroke, Olivier Bienaymé, Joss Bland-Hawthorn, Brad K. Gibson, Eva K. Grebel, Amina Helmi, Ulisse Munari, Julio F. Navarro, Warren Reid, Arnaud Siebert, Rosemary Wyse
- http://arxiv.org/abs/1609.02914
The Time Evolution of Gaps in Tidal Streams
- Volume 11, Issue 36 - article #20
- Amina Helmi, Helmer H. Koppelman
- The Astrophysical Journal Letters
- http://iopscience.iop.org/2041-8205/828/1/L10
Stream-subhalo interactions in the Aquarius simulations. (arXiv:1608.05624v1 [astro-ph.GA])
- Volume 11, Issue 35 - article #7
- Robyn E. Sanderson, Carlos Vera-Ciro, Amina Helmi, Joren Heit
- http://arxiv.org/abs/1608.05624
What can Gaia proper motions tell us about Milky Way dwarf galaxies?
- Volume 10, Issue 5 - article #11
- Shoko Jin, Amina Helmi, Maarten Breddels (Kapteyn Astronomical Institute, University of Groningen)
- arXiv.org - Astrophysics - Volume: 2015, Issue: 6 Feb
- arXiv:1502.01215 [pdf, other]
Elemental abundances in Milky Way-like galaxies from a hierarchical galaxy formation model
- Volume 9, Issue 23 - article #57
- Gabriella De Lucia, Luca Tornatore, Carlos S. Frenk, Amina Helmi, Julio F. Navarro, and Simon D. M. White
- Monthly Notices of the Royal Astronomical Society - Volume: 445, Issue: 1
- Abstract Full Text (HTML) Full Text (PDF)
Elemental Abundances in Milky Way-like Galaxies from a Hierarchical Galaxy Formation Model
- Volume 9, Issue 21 - article #3
- Gabriella De Lucia, Luca Tornatore, Carlos S. Frenk, Amina Helmi, Julio F. Navarro, Simon D. M. White
- arXiv.org - Astrophysics - Volume: 2014, Issue: 1 Aug
- arXiv:1407.7867 [pdf, ps, other]
Binary white dwarfs in the halo of the Milky Way
- Volume 9, Issue 20 - article #2
- Pim van Oirschot, Gijs Nelemans, Silvia Toonen, Onno Pols, Anthony G. A. Brown, Amina Helmi, Simon Portegies Zwart
- arXiv.org - Astrophysics - Volume: 2014, Issue: 11 Jul
- arXiv:1407.2405 [pdf, other]
More pieces of the puzzle: Chemistry and substructures in the Galactic thick disk
- Volume 9, Issue 20 - article #8
- Amina Helmi, Mary Williams, K.C. Freeman, J. Bland-Hawthorn, G. De Silva
- arXiv.org - Astrophysics - Volume: 2014, Issue: 11 Jul
- arXiv:1407.2533 [pdf, ps, other]
The shape of dark matter subhaloes in the Aquarius simulations
- Volume 9, Issue 12 - article #17
- Carlos A. Vera-Ciro, Laura V. Sales, Amina Helmi, and Julio F. Navarro
- Monthly Notices of the Royal Astronomical Society - Volume: 439, Issue: 3
- Abstract Full Text (HTML) Full Text (PDF)
Streams in the Aquarius stellar haloes
- Volume 9, Issue 4 - article #33
- Facundo A. GÃ³mez, Amina Helmi, Andrew P. Cooper, Carlos S. Frenk, Julio F. Navarro, and Simon D. M. White
- Monthly Notices of the Royal Astronomical Society - Volume: 436, Issue: 4
- Abstract Full Text (HTML) Full Text (PDF)
Galactic kinematics and dynamics from RAVE stars
- Volume 8, Issue 38 - article #4
- James Binney, Ben Burnett, Georges Kordopatis, Matthias Steinmetz, Gerry Gilmore, Olivier Bienayme, Joss Bland-Hawthorn, Benoit Famaey, Eva K. Grebel, Amina Helmi, Julio Navarro, Quentin Parker, Warren A. Reid, George Seabroke, Fred Watson, Mary E.K. Williams, Rosie F.G. Wyse, Tomaz Zwitter
- arXiv.org - Astrophysics - Volume: 2013, Issue: 20 Sep
- arXiv:1309.4285 [pdf, ps, other]
New distances to RAVE stars
- Volume 8, Issue 38 - article #6
- James Binney, Ben Burnett, Georges Kordopatis, Paul J McMillan, Sanjib Sharma, Tomaz Zwitter, Olivier Bienayme, Joss Bland-Hawthorn, Matthias Steinmetz, Gerry Gilmore, Mary E.K. Williams, Julio Navarro, Eva K. Grebel, Amina Helmi, Quentin Parker, Warren A. Reid, George Seabroke, Fred Watson, Rosie F.G. Wyse
- arXiv.org - Astrophysics - Volume: 2013, Issue: 20 Sep
- arXiv:1309.4270 [pdf, ps, other]
The RAVE survey: the Galactic escape speed and the mass of the Milky Way
- Volume 8, Issue 38 - article #11
- Til Piffl, Cecilia Scannapieco, James Binney, Matthias Steinmetz, Ralf-Dieter Scholz, Mary E. K. Williams, Roelof S. de Jong, Georges Kordopatis, Gal Matijevic, Olivier Bienayme, Joss Bland-Hawthorn, Corrado Boeche, Ken Freeman, Brad Gibson, Gerald Gilmore, Eva K. Grebel, Amina Helmi, Ulisse Munari, Julio F. Navarro, Quentin Parker, Warren A. Reid, George Seabroke, Fred Watson, Rosemary F. G. Wyse, Tomaz Zwitter
- arXiv.org - Astrophysics - Volume: 2013, Issue: 20 Sep
- arXiv:1309.4293 [pdf, ps, other]
Streams in the Aquarius stellar haloes
- Volume 8, Issue 27 - article #6
- Facundo A. Gómez, Amina Helmi, Andrew P. Cooper, Carlos S. Frenk, Julio F. Navarro, Simon D. M. White
- arXiv.org - Astrophysics - Volume: 2013, Issue: 5 Jul
- arXiv:1307.0008 [pdf, ps, other]
Internal kinematics and dynamical models of dwarf spheroidal galaxies around the Milky Way
- Volume 8, Issue 22 - article #2
- Giuseppina Battaglia, Amina Helmi, Maarten Breddels
- arXiv.org - Astrophysics - Volume: 2013, Issue: 31 May
- arXiv:1305.5965 [pdf, other]
Dark Satellites and the Morphology of Dwarf Galaxies
- Volume 7, Issue 41 - article #25
- Amina Helmi, L. V. Sales, E. Starkenburg, T. K. Starkenburg, C. A. Vera-Ciro, G. De Lucia, and Y.-S. Li
- The Astrophysical Journal Letters - Volume: 758, Issue: 1
- Abstract References Full text PDF (517 KB) View as HTML
Dark satellites and the morphology of dwarf galaxies
- Volume 7, Issue 24 - article #4
- Amina Helmi, L. V. Sales, E. Starkenburg, T. K. Starkenburg, C. A. Vera-Ciro, G. De Lucia, Y.-S. Li
- arXiv.org - Astrophysics - Volume: 2012, Issue: 15 Jun
- arXiv:1206.2359 [pdf, ps, other]
The satellites of the Milky Way - Insights from semi-analytic modelling in a LambdaCDM cosmology
- Volume 7, Issue 23 - article #10
- Else Starkenburg, Amina Helmi, Gabriella De Lucia, Yang-Shyang Li, Julio F. Navarro, Andreea S. Font, Carlos S. Frenk, Volker Springel, Carlos A. Vera-Ciro, Simon D. M. White
- arXiv.org - Astrophysics - Volume: 2012, Issue: 8 Jun
- arXiv:1206.0020 [pdf, ps, other]
Nucleosynthesis and the Inhomogeneous Chemical Evolution of the Carina Dwarf Galaxy
- Volume 7, Issue 20 - article #34
- Kim A. Venn, Matthew D. Shetrone, Mike J. Irwin, Vanessa Hill, Pascale Jablonka, Eline Tolstoy, Bertrand Lemasle, Mike Divell, Else Starkenburg, Bruno Letarte, Charles Baldner, Giuseppina Battaglia, Amina Helmi, Andreas Kaufer, and Francesca Primas
- The Astrophysical Journal - Volume: 751, Issue: 2
- Abstract References Cited by Full text PDF (3.09 MB) HTML with Enhancements
Nucleosynthesis and the Inhomogeneous Chemical Evolution of the Carina Dwarf Galaxy
- Volume 7, Issue 14 - article #8
- Kim Venn, Matthew Shetrone, Mike Irwin, Vanessa Hill, Pascale Jablonka, Eline Tolstoy, Bertrand Lemasle, Mike Divell, Else Starkenburg, Bruno Letarte, Charles Baldner, Giuseppina Battaglia, Amina Helmi, Andreas Kaufer, Francesca Primas
- arXiv.org - Astrophysics - Volume: 2012, Issue: 6 Apr
- arXiv:1204.0787 [pdf, ps, other]
Not too big, not too small: the dark halos of the dwarf spheroidals in the Milky Way
- Volume 7, Issue 9 - article #6
- Carlos A. Vera-Ciro, Amina Helmi, Else Starkenburg, Maarten A. Breddels
- arXiv.org - Astrophysics - Volume: 2012, Issue: 2 Mar
- arXiv:1202.6061 [pdf, other]
Observational Properties of the Metal-poor Thick Disk of the Milky Way and Insights into its Origins
- Volume 6, Issue 36 - article #30
- Gregory R. Ruchti, Jon P. Fulbright, Rosemary F. G. Wyse, Gerard F. Gilmore, Olivier BienaymÃ©, Joss Bland-Hawthorn, Brad K. Gibson, Eva K. Grebel, Amina Helmi, Ulisse Munari, Julio F. Navarro, Quentin A. Parker, Warren Reid, George M. Seabroke, Arnaud Siebert, Alessandro Siviero, Matthias Steinmetz, Fred G. Watson, Mary Williams and Tomaz Zwitter
- The Astrophysical Journal - Volume: 737, Issue: 1
- Abstract References Full text PDF (2.70 MB) HTML with Enhancements
The shape of dark matter haloes in the Aquarius simulations: evolution and memory
- Volume 6, Issue 35 - article #25
- Carlos A. Vera-Ciro, Laura V. Sales, Amina Helmi, Carlos S. Frenk, Julio F. Navarro, Volker Springel, Mark Vogelsberger and Simon D. M. White
- Monthly Notices of the Royal Astronomical Society - Volume: 416, Issue: 2
- Abstract Full Article (HTML)PDF(5243K)References Request Permissions
Observational Properties of the Metal-Poor Thick Disk of the Milky Way Galaxy and Insights into Its Origins
- Volume 6, Issue 20 - article #7
- Gregory R. Ruchti, Jon P. Fulbright, Rosemary F. G. Wyse, Gerard F. Gilmore, Olivier Bienayme, Joss Bland-Hawthorn, Brad K. Gibson, Eva K. Grebel, Amina Helmi, Ulisse Munari, Julio F. Navarro, Quentin A. Parker, Warren Reid, George M. Seabroke, Arnaud Siebert, Alessandro Siviero, Matthias Steinmetz, Fred G. Watson, Mary Williams, Tomaz Zwitter
- arXiv.org - Astrophysics - Volume: 2011, Issue: 20 May
- arXiv:1105.3691 [pdf, ps, other]
Testing formation mechanisms of the Milky Way's thick disc with RAVE
- Volume 6, Issue 19 - article #24
- Michelle L. Wilson, Amina Helmi, Heather L. Morrison, Maarten A. Breddels, O. Bienaymé, J. Binney, J. Bland-Hawthorn, R. Campbell, K. C. Freeman, J. P. Fulbright, B. K. Gibson, G. Gilmore, E. K. Grebel, U. Munari, J. F. Navarro, Q. A. Parker, W. Reid, G. Seabroke, A. Siebert, A. Siviero, M. Steinmetz, M. E. K. Williams, R. F. G. Wyse and T. Zwitter
- Monthly Notices of the Royal Astronomical Society - Volume: 413, Issue: 3
- Abstract Full Article (HTML)PDF(1456K)References
Substructure in the Stellar Halos of the Aquarius Simulations
- Volume 6, Issue 18 - article #20
- Amina Helmi, A. P. Cooper, S. D. M. White, S. Cole, C. S. Frenk and J. F. Navarro
- The Astrophysical Journal Letters - Volume: 733, Issue: 1
- Abstract References Full text PDF (1.35 MB) View as HTML
Sagittarius and its siblings in the Aquarius simulations
- Volume 6, Issue 2 - article #9
- Amina Helmi, A.P. Cooper, S.D.M. White, S. Cole, C.S. Frenk, J.F. Navarro
- arXiv.org - Astrophysics - Volume: 2011, Issue: 14 Jan
- arXiv:1101.2544 [pdf, ps, other]
On the identification of merger debris in the {it Gaia} Era
- Volume 5, Issue 18 - article #12
- Facundo A. Gómez, Amina Helmi, Anthony G. A. Brown, Yang-Shyang Li
- arXiv.org - Astrophysics - Volume: 2010, Issue: 30 Apr
- arXiv:1004.4974 [pdf, ps, other]
The NIR Ca II triplet at low metallicity -- Searching for extremely low-metallicity stars in classical dwarf galaxies
- Volume 5, Issue 8 - article #10
- Else Starkenburg, Vanessa Hill, Eline Tolstoy, Jonay I. González Hernández, Mike Irwin, Amina Helmi, Giuseppina Battaglia, Pascale Jablonka, Martin Tafelmeyer, Matthew Shetrone, Kim Venn, Thomas de Boer
- arXiv.org - Astrophysics - Volume: 2010, Issue: 19 Feb
- arXiv:1002.2963 [pdf, ps, other]
Orbital Eccentricity as a probe of Thick Disk Formation Scenarios
- Volume 4, Issue 39 - article #11
- Laura V. Sales, Amina Helmi, Mario G. Abadi, Chris B. Brook, Facundo A. Gomez, Rok Roskar, Victor P. Debattista, Elisa House, Matthias Steinmetz, Alvaro Villalobos
- arXiv.org - Astrophysics - Volume: 2009, Issue: 25 Sep
- arXiv:0909.3858 [ps, pdf, other]
Mapping the Galactic Halo. VIII. Quantifying Substructure
- Volume 4, Issue 22 - article #29
- <em >Else Starkenburg, Amina Helmi, Heather L. Morrison, Paul Harding, Hugo van Woerden, Mario Mateo, Edward W. Olszewski, Thirupathi Sivarani, John E. Norris, Kenneth C. Freeman, Stephen A. Shectman, R. C. Dohm-Palmer, Lucy Frey, and Dan Oravetz</em&gt,
- The Astrophysical Journal - Volume: 698, Issue: 1
- Abstract | References
Mapping the Galactic Halo VIII: Quantifying substructure
- Volume 4, Issue 12 - article #13
- Else Starkenburg, Amina Helmi, Heather L. Morrison, Paul Harding, Hugo van Woerden, Mario Mateo, Edward W. Olszewski, Thirupathi Sivarani, John E. Norris, Kenneth C. Freeman, Stephen A. Shectman, R.C. Dohm-Palmer, Lucy Frey, Dan Oravetz
- arXiv.org - Astrophysics - Volume: 2009, Issue: 20 Mar
- arXiv:0903.3043 [ps, pdf, other]
Fashionably Late? Building Up The Milky Way'S Inner Halo
- Volume 4, Issue 12 - article #35
- <em >Heather L. Morrison, Amina Helmi, Jiayang Sun, Peng Liu, Rongfang Gu, John E. Norris, Paul Harding, T. D. Kinman, Amanda A. Kepley, Kenneth C. Freeman, Mary Williams, and Jeffrey Van Duyne</em&gt,
- The Astrophysical Journal - Volume: 694, Issue: 1
- Abstract | References
Galactic Dynamics and Local Dark Matter
- Volume 4, Issue 8 - article #8
- Steven R. Majewski, James Bullock, Andreas Burkert, Brad Gibson, Eva Grebel, Oleg Y. Gnedin, Puragra Guhathakurta, Amina Helmi, Kathryn V. Johnston, Pavel Kroupa, Manuel Metz, Ben Moore, Richard J. Patterson, Edward Shaya, Louis E. Strigari, Roeland van der Marel
- arXiv.org - Astrophysics - Volume: 2009, Issue: 20 Feb
- arXiv:0902.2759 [pdf]
Properties of Dark Matter Revealed by Astrometric Measurements of the Milky Way and Local Galaxies
- Volume 4, Issue 8 - article #16
- Edward Shaya, Robert Olling, Massimo Ricotti, Stuart Vogel, Steven R. Majewski, Richard J. Patterson, Ron Allen, Roeland P. van der Marel, Warren Brown, James Bullock, Andreas Burkert, Francoise Combes, Oleg Gnedin, Carl Grillmair, Shri Kulkarni, Puragra Guhathakurta, Amina Helmi, Kathryn Johnston, Pavel Kroupa, George Lake, Ben Moore, R. Brent Tully
- arXiv.org - Astrophysics - Volume: 2009, Issue: 20 Feb
- arXiv:0902.2835 [pdf]
The Arcturus Moving Group: Its Place in the Galaxy
- Volume 3, Issue 42 - article #13
- Mary E. K. Williams, Ken C. Freeman, Amina Helmi, the RAVE collaboration
- arXiv.org - Astrophysics - Volume: 2008, Issue: 16 Oct
- arXiv:0810.2669 [ps, pdf, other]
A New View of the Dwarf Spheroidal Satellites of the Milky Way from VLT FLAMES: Where Are the Very Metal-poor Stars?
- Volume 2, Issue 47 - article #7
- Amina Helmi, M. J. Irwin, E. Tolstoy, G. Battaglia, V. Hill, P. Jablonka, K. Venn, M. Shetrone, B. Letarte, N. Arimoto, T. Abel, P. Francois, A. Kaufer, F. Primas, K. Sadakane, and T. Szeifert
- The Astrophysical Journal Letters - Volume: 651, Issue: 2
- ABSTRACT | FULL TEXT | PDF (240 kB) | PS
HALO STAR STREAMS IN THE SOLAR NEIGHBORHOOD
- Volume 2, Issue 39 - article #16
- Amanda A. Kepley, Heather L. Morrison, Amina Helmi, T. D. Kinman, Jeffrey Van Duyne, John C. Martin, Paul Harding, John E. Norris, and Kenneth C. Freeman
- Astronomical Journal - Volume: 134, Issue: 4
- Abstract Full Text with Enhancements PDF (3396 kB) PostScript
Halo Star Streams in the Solar Neighborhood
- Volume 2, Issue 31 - article #6
- Amanda A. Kepley, Heather L. Morrison, Amina Helmi, T.D. Kinman, Jeffrey Van Duyne, John C. Martin, Paul Harding, John E. Norris, Kenneth C. Freeman
- ArXiv - Astrophysics
- arXiv:0707.4477 [ps, pdf, other]
A new view of the dwarf spheroidal satellites of the Milky Way from VLT/FLAMES: Where are the very metal poor stars?
- Volume 1, Issue 42 - article #11
- Amina Helmi, M.J. Irwin, E. Tolstoy, G. Battaglia, V. Hill, P. Jablonka, K. Venn, M. Shetrone, B. Letarte, N. Arimoto, T. Abel, P. Francois, A. Kaufer, F. Primas, K. Sadakane, T. Szeifert
- ArXiv - Astrophysics
- astro-ph/0611420 [abs, ps, pdf, other]

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