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Results 1 - 38 of 38

Very Metal-poor Stars in the Solar Vicinity: Age Determination
- Virtual Journal - Volume 20, Issue 47 - article #17
- Anastasiia Plotnikova, Giovanni Carraro, Sandro Villanova, Sergio Ortolani
- The Astrophysical Journal
- https://doi.org/10.3847/1538-4357/ac9cd7
The Hubble Space Telescope UV Legacy Survey of Galactic globular clusters - IX. The Atlas of multiple stellar populations
- Virtual Journal - Volume 14, Issue 47 - article #16
- Milone, A. P., Piotto, G., Renzini, A., Marino, A. F., Bedin, L. R., Vesperini, E., D'Antona, F., Nardiello, D., Anderson, J., King, I. R., Yong, D., Bellini, A., Aparicio, A., Barbuy, B., Brown, T. M., Cassisi, S., Ortolani, S., Salaris, M., Sarajedini, A., van der Marel, R. P.
- >Oxford University Press
- http://mnras.oxfordjournals.org/cgi/content/short/464/3/3636?rss=1
High-resolution abundance analysis of red giants in the metal-poor bulge globular cluster HP~1
- Virtual Journal - Volume 14, Issue 15 - article #6
- B. Barbuy, E. Cantelli, A. Vemado, H. Ernandes, S. Ortolani, I. Saviane, E. Bica, D. Minniti, B. Dias, Y. Momany, V. Hill, M. Zoccali, C. Siqueira-Mello
- arXiv.org - Astrophysics - Volume: 2016, Issue: 8 Apr
- arXiv:1604.02095 [pdf, ps, other]
FORS2/VLT survey of Milky Way globular clusters II. Fe and Mg abundances of 51 Milky Way globular clusters on a homogeneous scale
- Virtual Journal - Volume 14, Issue 11 - article #6
- Bruno Dias, Beatriz Barbuy, Ivo Saviane, Enrico Held, Gary Da Costa, Sergio Ortolani, Marco Gullieuszik, Sergio Vasquez
- arXiv.org - Astrophysics - Volume: 2016, Issue: 11 Mar
- arXiv:1603.02672 [pdf, ps, other]
Heavy elements Ba, La, Ce, Nd, and Eu in 56 Galactic bulge red giants
- Virtual Journal - Volume 13, Issue 42 - article #4
- M. Van der Swaelmen, B. Barbuy, V. Hill, M. Zoccali, D. Minniti, S. Ortolani, A. Gomez
- arXiv.org - Astrophysics - Volume: 2015, Issue: 13 Nov
- arXiv:1511.03919 [pdf, other]
Zinc abundances in Galactic bulge field red giants: implications for DLA systems
- Virtual Journal - Volume 13, Issue 22 - article #13
- B.Barbuy, A. C. S. Friaca, C. R. da Silveira, V. Hill, M. Zoccali, D. Minniti, A. Renzini, S. Ortolani, A. Gomez
- arXiv.org - Astrophysics - Volume: 2015, Issue: 5 Jun
- arXiv:1506.01612 [pdf, ps, other]
The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. IV. Helium content and relative age of multiple stellar populations within NGC 6352
- Virtual Journal - Volume 13, Issue 17 - article #16
- D. Nardiello, G. Piotto, A. P. Milone, A. F. Marino, L. R. Bedin, J. Anderson, A. Aparicio, A. Bellini, S. Cassisi, F. D'Antona, S. Hidalgo, S. Ortolani, A. Pietrinferni, A. Renzini, M. Salaris, R. P. van der Marel, E. Vesperini
- arXiv.org - Astrophysics - Volume: 2015, Issue: 1 May
- arXiv:1504.07876 [pdf, ps, other]
The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. I. Overview of the Project and Detection of Multiple Stellar Populations
- Virtual Journal - Volume 13, Issue 9 - article #22
- G. Piotto, A. P. Milone, L. R. Bedin, J. Anderson, I. R. King, A. F. Marino, D. Nardiello, A. Aparicio, B. Barbuy, A. Bellini, T. M. Brown, S. Cassisi, A. M. Cool, A. Cunial, E. Dalessandro, F. D'Antona, F. R. Ferraro, S. Hidalgo, B. Lanzoni, M. Monelli, S. Ortolani, A. Renzini, M. Salaris, A. Sarajedini, R. P. van der Marel, E. Vesperini, and M. Zoccali
- Astronomical Journal - Volume: 149, Issue: 3
- View article PDF (11.62 MB)
FORS2/VLT survey of Milky Way globular clusters - I. Description of the method for derivation of metal abundances in the optical and application to NGC 6528, NGC 6553, M 71, NGC 6558, NGC 6426, and Terzan 8
- Virtual Journal - Volume 13, Issue 2 - article #27
- B. Dias, B. Barbuy, I. Saviane, E. V. Held, G. S. Da Costa, S. Ortolani, S. Vasquez, M. Gullieuszik and D. Katz
- Astronomy and Astrophysics - Volume: 573, Issue: January 2015
- http://dx.doi.org/10.1051/0004-6361/201423996
  Abstract Full HTML PDF (6.761 MB) ePUB (4.418 MB) References Online Material NASA ADS Abstract Service
High-resolution abundance analysis of red giants in the globular cluster NGC 6522
- Virtual Journal - Volume 12, Issue 24 - article #85
- B. Barbuy, C. Chiappini, E. Cantelli, E. Depagne, M. Pignatari, R. Hirschi, G. Cescutti, S. Ortolani, V. Hill, M. Zoccali, et al. (4 more) D. Minniti, M. Trevisan, E. Bica and A. GÃƒÂ³mez
- Astronomy and Astrophysics - Volume: 570, Issue: October 2014
- http://dx.doi.org/10.1051/0004-6361/201424311
  Abstract Full HTML PDF (1.165 MB) ePUB (2.306 MB) References Online Material SIMBAD record NASA ADS Abstract Service
High-resolution abundance analysis of red giants in the globular cluster NGC 6522
- Virtual Journal - Volume 12, Issue 21 - article #18
- B. Barbuy, C. Chiappini, E. Cantelli, E. Depagne, M. Pignatari, R. Hirschi, G. Cescutti, S. Ortolani, V. Hill, M. Zoccali, D. Minniti, M. Trevisan, E. Bica, A. Gómez
- arXiv.org - Astrophysics - Volume: 2014, Issue: 15 Aug
- arXiv:1408.2438 [pdf, ps, other]
Homogeneous Metallicities and Radial Velocities for Galactic Globular Clusters
- Virtual Journal - Volume 10, Issue 6 - article #9
- Ivo Saviane (1), Gary S. Da Costa (2), Enrico V. Held (3), Veronica Sommariva (3,7), Marco Gullieuszik (4), Beatriz Barbuy (5), Sergio Ortolani (6), ((1) ESO, (2) Mt Stromlo Observatory, Australia, (3) INAF, Osservatorio Astronomico di Padova, Italy, (4) Royal Observatory, Belgium, (5) University of Sao Paulo, Brazil, (6) University of Padova, Italy, (7) INAF, Osservatorio Astrofisico di Arcetri, Italy)
- arXiv.org - Astrophysics - Volume: 2012, Issue: 10 Feb
- arXiv:1202.1304 [pdf, ps, other]
A Fossil Bulge Globular Cluster Revealed by very Large Telescope Multi-conjugate Adaptive Optics
- Virtual Journal - Volume 9, Issue 36 - article #27
- Sergio Ortolani, Beatriz Barbuy, Yazan Momany, Ivo Saviane, Eduardo Bica, Lucie Jilkova, Gustavo M. Salerno and Bruno Jungwiert
- The Astrophysical Journal - Volume: 737, Issue: 1
- Abstract References Full text PDF (1.98 MB) View as HTML
Alpha element abundances and gradients in the Milky Way bulge from FLAMES-GIRAFFE spectra of 650 K giants
- Virtual Journal - Volume 9, Issue 13 - article #3
- O. A. Gonzalez, M. Rejkuba, M. Zoccali, V. Hill, G. Battaglia, C. Babusiaux, D. Minniti, B. Barbuy, A. Alves-Brito, A. Renzini, A. Gomez, S. Ortolani
- arXiv.org - Astrophysics - Volume: 2011, Issue: 1 Apr
- arXiv:1103.6104 [pdf, ps, other]
Fraction of clear skies above astronomical sites: a new analysis from the GOES12 satellite
- Virtual Journal - Volume 8, Issue 48 - article #6
- S. Cavazzani, S. Ortolani, V.Zitelli, Y.Maruccia
- arXiv.org - Astrophysics - Volume: 2010, Issue: 25 Nov
- arXiv:1011.4815 [pdf, ps, other]
Abundances for a Large Sample of Red Giants in NGCÂ 1851: Hints for a Merger of Two Clusters?
- Virtual Journal - Volume 8, Issue 40 - article #39
- E. Carretta, R. G. Gratton, S. Lucatello, A. Bragaglia, G. Catanzaro, F. Leone, Y. Momany, V. D'Orazi, S. Cassisi, F. D'Antona, and S. Ortolani
- The Astrophysical Journal Letters - Volume: 722, Issue: 1
- Abstract References Full text PDF (314 KB) View as HTML
Abundances for a large sample of red giants in NGC 1851: hints for a merger of two clusters?
- Virtual Journal - Volume 8, Issue 32 - article #2
- E. Carretta (1), R.G. Gratton, (2) S. Lucatello (2,3,4), A. Bragaglia (1), G. Catanzaro (5), F. Leone (6), Y. Momany (2,7), V. D'Orazi (2), S. Cassisi (8), F. D'Antona (9), S. Ortolani (10) ((1) INAF-Oss. Astr. Bologna, (2) INAF-Oss. Astr. Padova, (3) Excellence Cluster Universe, (4) Max Planck Inst. Astrophys., (5) INAF-Oss. Astr. Catania, (6) Univers. Catania, (7) ESO, (8) INAF-Oss. Astr. Collurania, (9) INAF-Oss. Astr. Roma, (10) Univers. Padova)
- arXiv.org - Astrophysics - Volume: 2010, Issue: 30 Jul
- arXiv:1007.5301 [pdf, ps, other]
The end of the white dwarf cooling sequence in M 67
- Virtual Journal - Volume 8, Issue 4 - article #11
- A. Bellini, L. R. Bedin, G. Piotto, M. Salaris, J. Anderson, E. Brocato, R. Ragazzoni, S. Ortolani, A. Z. Bonanos, I. Platais, R. Gilliland, G. Raimondo, A. Bragaglia, M. Tosi, S. Gallozzi, V. Testa, C. S. Kochanek, E. Giallongo, A. Baruffolo, J. Farinato, E. Diolaiti, R. Speziali, G. Carraro, R. K. S. Yadav
- arXiv.org - Astrophysics - Volume: 2010, Issue: 22 Jan
- arXiv:1001.3827 [ps, pdf, other]
Li-rich red giant branch stars in the Galactic bulge
- Virtual Journal - Volume 7, Issue 50 - article #23
- O. A. Gonzalez, M. Zoccali, L. Monaco, V. Hill, S. Cassisi, D. Minniti, A. Renzini, B. Barbuy, S. Ortolani, and A. Gomez
- Astronomy and Astrophysics - Volume: 508, Issue: 1
- Abstract | PDF file (434.5 KB) | PS file (287.6 KB)
VLT-FLAMES analysis of 8 giants in the bulge metal-poor globular cluster NGC 6522: oldest cluster in the Galaxy? - Analysis of 8 giants in NGC 6522
- Virtual Journal - Volume 7, Issue 46 - article #28
- B. Barbuy, M. Zoccali, S. Ortolani, V. Hill, D. Minniti, E. Bica, A. Renzini, and A. Gómez
- Astronomy and Astrophysics - Volume: 507, Issue: 1
- Abstract | PDF file (950.7 KB) | PS file (1.237 MB)
Chemical abundances for 11 bulge stars from high-resolution, near-IR spectra
- Virtual Journal - Volume 7, Issue 41 - article #3
- N. Ryde, B. Gustafsson, B. Edvardsson, J. Melendez, A. Alves-Brito, M. Asplund, B. Barbuy, V. Hill, H. U. Kaufl, D. Minniti, S. Ortolani, A. Renzini, M. Zoccali
- arXiv.org - Astrophysics - Volume: 2009, Issue: 9 Oct
- arXiv:0910.0448 [ps, pdf, other]
Na-O anticorrelation and HB - VII. The chemical composition of first and second-generation stars in 15 globular clusters from GIRAFFE spectra
- Virtual Journal - Volume 7, Issue 40 - article #24
- E. Carretta, A. Bragaglia, R. G. Gratton, S. Lucatello, G. Catanzaro, F. Leone, M. Bellazzini, R. Claudi, V. D'Orazi, Y. Momany, S. Ortolani, E. Pancino, G. Piotto, A. Recio-Blanco, and E. Sabbi
- Astronomy and Astrophysics - Volume: 505, Issue: 1
- Abstract | PDF file (820.5 KB) | PS file (470.3 KB)
Na-O Anticorrelation and HB. VII. The chemical composition of first and second-generation stars in 15 globular clusters from GIRAFFE spectra
- Virtual Journal - Volume 7, Issue 38 - article #6
- E. Carretta, A. Bragaglia, R.G. Gratton, S. Lucatello, G. Catanzaro, F. Leone, M. Bellazzini, R. Claudi, V. D'Orazi, Y. Momany, S. Ortolani, E. Pancino, G. Piotto, A. Recio-Blanco, E. Sabbi
- arXiv.org - Astrophysics - Volume: 2009, Issue: 18 Sep
- arXiv:0909.2938 [ps, pdf, other]
Pfleiderer 2: Identification of A New Globular Cluster in the Galaxy
- Virtual Journal - Volume 7, Issue 34 - article #29
- <em >S. Ortolani, C. Bonatto, E. Bica, and B. Barbuy</em&gt,
- Astronomical Journal - Volume: 138, Issue: 3
- Abstract | References
VLT-UVES abundance analysis of four giants in NGC 6553
- Virtual Journal - Volume 6, Issue 36 - article #18
- A. Alves-Brito, B. Barbuy, M. Zoccali, D. Minniti, S. Ortolani, V. Hill, A. Renzini, L. Pasquini, E. Bica, R. M. Rich, J. Meléndez, and Y. Momany
- Astronomy and Astrophysics - Volume: 460, Issue: 1
- Abstract | Full HTML | PDF file (485 KB) | PS file (194 KB) | References | Online Material
The metal content of bulge field stars from FLAMES-GIRAFFE spectra - I. Stellar parameters and iron abundances
- Virtual Journal - Volume 6, Issue 27 - article #19
- M. Zoccali, V. Hill, A. Lecureur, B. Barbuy, A. Renzini, D. Minniti, A. Gómez, and S. Ortolani
- Astronomy and Astrophysics - Volume: 486, Issue: 1
- Abstract | PDF file (969.8 KB) | PS file (621.4 KB)
The Metal Content of Bulge Field Stars from FLAMES-GIRAFFE Spectra. I. Stellar parameters and Iron Abundances
- Virtual Journal - Volume 6, Issue 19 - article #7
- M. Zoccali, V. Hill, A. Lecureur, B. Barbuy, A. Renzini, D. Minniti, A. Gomez, S. Ortolani
- arXiv.org - Astrophysics - Volume: 2008, Issue: 8 May
- arXiv:0805.1218 [ps, pdf, other]
NGC 6558: A BLUE HORIZONTAL BRANCH MODERATELY METAL-POOR GLOBULAR CLUSTER IN THE BULGE
- Virtual Journal - Volume 5, Issue 39 - article #17
- B. Barbuy, M. Zoccali, S. Ortolani, D. Minniti, V. Hill, A. Renzini, E. Bica, and A. Gómez
- Astronomical Journal - Volume: 134, Issue: 4
- Abstract Full Text with Enhancements PDF (500 kB) PostScript
Oxygen, Sodium, Magnesium and Aluminium as tracers of the Galactic Bulge Formation
- Virtual Journal - Volume 4, Issue 41 - article #21
- A. Lecureur, V. Hill, M. Zoccali, B. Barbuy, A. Gomez, D. Minniti, S. Ortolani, A. Renzini
- ArXiv - Astrophysics
- astro-ph/0610346 [abs, ps, pdf, other]
Oxygen abundances in the Galactic bulge: evidence for fast chemical enrichment
- Virtual Journal - Volume 4, Issue 37 - article #17
- M. Zoccali, A. Lecureur, B. Barbuy, V. Hill, A. Renzini, D. Minniti, Y. Momany, A. GÃ³mez and S. Ortolani
- Astronomy and Astrophysics - Volume 457, Issue 1 - September, 2006
- Abstract, PDF file (137 KB), PS file (62.0 KB)
VLT-UVES analysis of two giants in the bulge metal-poor globular cluster HP-1 - Analysis of two giants in HP-1
- Virtual Journal - Volume 4, Issue 11 - article #27
- B. Barbuy, M. Zoccali, S. Ortolani, Y. Momany, D. Minniti, V. Hill, A. Renzini, R. M. Rich, E. Bica, L. Pasquini and R. K. S. Yadav
- Astronomy and Astrophysics - Volume 449, Issue 1 - March, 2006
- Abstract, Full HTML, PDF file (1.77 MB), PS file (3.48 MB), References
Globular cluster system and Milky Way properties revisited
- Virtual Journal - Volume 3, Issue 48 - article #15
- Eduardo Bica, Charles Bonatto, Beatriz Barbuy, Sergio Ortolani
- ArXiv – Astrophysics – December 2005
- astro-ph/0511788 [abs, ps, pdf, other]
SOAR BVI Photometry of the Metal-Poor Bulge Globular Cluster NGC 6642
- Virtual Journal - Volume 3, Issue 47 - article #8
- B. Barbuy, E. Bica, S. Ortolani, C. Bonatto
- ArXiv – Astrophysics – November 2005
- astro-ph/0511608 [abs, ps, pdf, other]
VLT-UVES analysis of 5 giants in 47 Tucanae
- Virtual Journal - Volume 3, Issue 18 - article #35
- A. Alves-Brito, B. Barbuy, S. Ortolani, Y. Momany, V. Hill, M. Zoccali, A. Renzini, D. Minniti, L. Pasquini, E. Bica and R. M. Rich
- Astronomy and Astrophysics – Vol 435, No 2 – May 2005
- Abstract , PDF file (2.81 MB) , PS file (2.51 MB)
GRB 020813: Polarization in the case of a smooth optical decay
- Virtual Journal - Volume 2, Issue 27 - article #32
- J. Gorosabel, E. Rol, S. Covino, A. J. Castro-Tirado, J. M. Castro CerÃ³n, D. Lazzati, J. Hjorth, D. Malesani, M. Della Valle, S. di Serego Alighieri, F. Fiore, A. S. Fruchter, J. P. U. Fynbo, G. Ghisellini, P. Goldoni, J. Greiner, G. L. Israel, L. Kaper, N. Kawai, S. Klose, C. Kouveliotou, E. Le Floc'h, N. Masetti, F. Mirabel, P. MÃ¸ller, S. Ortolani, E. Palazzi, E. Pian, J. Rhoads, G. Ricker, P. Saracco, L. Stella, G. Tagliaferri, N. Tanvir, E. van den Heuvel, M. Vietri, P. M. Vreeswijk, R. A. M. J. Wijers and F. M. Zerbi
- Astronomy and Astrophysics – Vol 422 No 1 – July 2004
- Abstract , PDF file (180 KB) , PS file (82.5 KB)
On the jet structure and magnetic field configuration of GRB 020813
- Virtual Journal - Volume 2, Issue 27 - article #34
- D. Lazzati, S. Covino, J. Gorosabel, E. Rossi, G. Ghisellini, E. Rol, J. M. Castro CerÃ³n, A. J. Castro-Tirado, M. Della Valle, S. di Serego Alighieri, A. S. Fruchter, J. P. U. Fynbo, P. Goldoni, J. Hjorth, G. L. Israel, L. Kaper, N. Kawai, E. Le Floc'h, D. Malesani, N. Masetti, P. Mazzali, F. Mirabel, P. MÃ¸ller, S. Ortolani, E. Palazzi, E. Pian, J. Rhoads, G. Ricker, J. D. Salmonson, L. Stella, G. Tagliaferri, N. Tanvir, E. van den Heuvel, R. A. M. J. Wijers and F. M. Zerbi
- Astronomy and Astrophysics – Vol 422 No 1 – July 2004
- Abstract , PDF file (212 KB) , PS file (80.3 KB)
On the jet structure and magnetic field configuration of GRB 020813
- Virtual Journal - Volume 2, Issue 4 - article #33
- D. Lazzati, S. Covino, J. Gorosabel, E. Rossi, G. Ghisellini, E. Rol, J. M. Castro Ceron, A. J. Castro-Tirado, M. Della Valle, S. di Serego Alighieri, A. S. Fruchter, J. P. U. Fynbo, P. Goldoni, J. Hjorth, G. L. Israel, L. Kaper, N. Kawai, E. Le Floc'h, D. Malesani, N. Masetti, F. Mirabel, P. Moller, S. Ortolani, E. Palazzi, E. Pian, J. Rhoads, G. Ricker, J. D. Salmonson, L. Stella, G. Tagliaferri, N. Tanvir, E. van den Heuvel, R. A. M. J. Wijers, F. M. Zerbi
- arXiv.org – Astrophysics – January 2004
- astro-ph/0401315 [ abs , ps , pdf , other ]
On the jet structure and magnetic field configuration of GRB 020813
- Virtual Journal - Volume 2, Issue 2 - article #2
- D. Lazzati, S. Covino, J. Gorosabel, E. Rossi, G. Ghisellini, E. Rol, J. M. Castro Ceron, A. J. Castro-Tirado, M. Della Valle, S. di Serego Alighieri, A. S. Fruchter, J. P. U. Fynbo, P. Goldoni, J. Hjorth, G. L. Israel, L. Kaper, N. Kawai, E. Le Floc'h, D. Malesani, N. Masetti, F. Mirabel, P. Moller, S. Ortolani, E. Palazzi, E. Pian, J. Rhoads, G. Ricker, J. D. Salmonson, L. Stella, G. Tagliaferri, N. Tanvir, E. van den Heuvel, R. A. M. J. Wijers, F. M. Zerbi
- arXiv.org – Astrophysics – January 2004
- astro-ph/0401315 [ abs , ps , pdf , other ]

Results 1 - 38 of 38

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