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Results 1 - 35 of 35

Vanadium Abundance Derivations in 255 Metal-poor Stars
- Virtual Journal - Volume 18, Issue 37 - article #29
- Xiaowei Ou, Ian U. Roederer, Christopher Sneden, John J. Cowan, James E. Lawler, Stephen A. Shectman,, Ian B. Thompson
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/900/2/106
Vanadium Abundance Derivations in 255 Metal-poor Stars. (arXiv:2008.05500v1 [astro-ph.SR])
- Virtual Journal - Volume 18, Issue 33 - article #7
- Xiaowei Ou, Ian U. Roederer, Christopher Sneden, John J. Cowan, James E. Lawler, Stephen A. Shectman, Ian B. Thompson
- http://arxiv.org/abs/2008.05500
The $R$-Process Alliance: Fourth Data Release from the Search for $r$-Process-Enhanced Stars in the Galactic Halo. (arXiv:2007.00749v1 [astro-ph.SR])
- Virtual Journal - Volume 18, Issue 27 - article #4
- Erika M. Holmbeck, Terese T. Hansen, Timothy C. Beers, Vinicius M. Placco, Devin D. Whitten, Kaitlin C. Rasmussen, Ian U. Roederer, Rana Ezzeddine, Charli M. Sakari, Anna Frebel, Maria R. Drout, Joshua D. Simon, Ian B. Thompson, Joss Bland-Hawthorn, Brad K. Gibson, Eva K. Grebel, Georges Kordopatis, Andrea Kunder, Jorge Melendez, Julio F. Navarro, Warren A.Reid, George Seabroke, Matthias Steinmetz, Fred Watson, Rosemary F.G. Wyse
- http://arxiv.org/abs/2007.00749
Chemical Abundance Signature of J0023+0307 -- A Second-Generation Main-Sequence Star with [Fe/H]<-6. (arXiv:1810.01228v1 [astro-ph.SR])
- Virtual Journal - Volume 16, Issue 40 - article #3
- Anna Frebel (MIT), Alexander P. Ji (Carnegie), Rana Ezzeddine (JINA, MIT), Terese T. Hansen (Carnegie), Anirudh Chiti (MIT), Ian B. Thompson (Carnegie), Thibault Merle (Brussels)
- http://arxiv.org/abs/1810.01228
The R -process Alliance: First Release from the Southern Search for R -process-enhanced Stars in the Galactic Halo
- Virtual Journal - Volume 16, Issue 19 - article #17
- Terese T. Hansen, Erika M. Holmbeck, Timothy C. Beers, Vinicius M. Placco, Ian U. Roederer, Anna Frebel, Charli M. Sakari, Joshua D. Simon,, Ian B. Thompson
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/858/2/92
The $R$-Process Alliance: First Release from the Southern Search for $r$-Process-Enhanced Stars in the Galactic Halo. (arXiv:1804.03114v1 [astro-ph.SR])
- Virtual Journal - Volume 16, Issue 15 - article #12
- Terese T. Hansen, Erika M. Holmbeck, Timothy C. Beers, Vinicius M. Placco, Ian U. Roederer, Anna Frebel, Charli M. Sakari, Joshua D. Simon, Ian B. Thompson
- http://arxiv.org/abs/1804.03114
Detection of a population of carbon-enhanced metal-poor stars in the Sculptor dwarf spheroidal galaxy. (arXiv:1803.04538v1 [astro-ph.GA])
- Virtual Journal - Volume 16, Issue 11 - article #4
- Anirudh Chiti, Joshua D. Simon, Anna Frebel, Ian B. Thompson, Stephen A. Shectman, Mario Mateo, John I. Bailey III, Jeffrey D. Crane, Matthew Walker
- http://arxiv.org/abs/1803.04538
Detailed Chemical Abundances in the r-Process-Rich Ultra-Faint Dwarf Galaxy Reticulum 2
- Virtual Journal - Volume 14, Issue 4 - article #5
- Ian U. Roederer (U. Michigan, JINA-CEE), Mario Mateo (U. Michigan), John I. Bailey III (U. Michigan), Yingyi Song (U. Michigan), Eric F. Bell (U. Michigan), Jeffrey D. Crane (Carnegie Observatories), Sarah Loebman (U. Michigan), David L. Nidever (LSST, Steward Observatory), Edward W. Olszewski (Steward Observatory), Stephen A. Shectman (Carnegie Observatories), Ian B. Thompson (Carnegie Observatories), Monica Valluri (U. Michigan), Matthew G. Walker (Carnegie Mellon U.)
- arXiv.org - Astrophysics - Volume: 2016, Issue: 22 Jan
- arXiv:1601.04070 [pdf, other]
Erratum: Nine new metal-poor stars on the subgiant and red horizontal branches with high levels of r-process enhancement
- Virtual Journal - Volume 14, Issue 1 - article #10
- Ian U. Roederer, John J. Cowan, George W. Preston, Stephen A. Shectman, Christopher Sneden, and Ian B. Thompson
- Monthly Notices of the Royal Astronomical Society - Volume: 455, Issue: 4
- Extract Full Text (HTML) Full Text (PDF)
Detailed abundances of 15 stars in the metal-poor globular cluster NGCÂ 4833
- Virtual Journal - Volume 13, Issue 16 - article #41
- Ian U. Roederer and Ian B. Thompson
- Monthly Notices of the Royal Astronomical Society - Volume: 449, Issue: 4
- Abstract Full Text (HTML) Full Text (PDF) SUPPORTING INFORMATION
Chemical Signatures of the First Supernovae in the Sculptor Dwarf Spheroidal Galaxy
- Virtual Journal - Volume 13, Issue 13 - article #36
- Joshua D. Simon, Heather R. Jacobson, Anna Frebel, Ian B. Thompson, Joshua J. Adams, and Stephen A. Shectman
- The Astrophysical Journal - Volume: 802, Issue: 2
- View article PDF (368 KB)
Detailed Abundances of 15 Stars in the Metal-Poor Globular Cluster NGC 4833
- Virtual Journal - Volume 13, Issue 10 - article #4
- Ian U. Roederer (University of Michigan), Ian B. Thompson (Carnegie Observatories)
- arXiv.org - Astrophysics - Volume: 2015, Issue: 13 Mar
- arXiv:1503.03079 [pdf, ps, other]
Chemical Signatures of the First Supernovae in the Sculptor Dwarf Spheroidal Galaxy
- Virtual Journal - Volume 12, Issue 25 - article #15
- Joshua D. Simon (Carnegie Observatories), Heather R. Jacobson, Anna Frebel (MIT), Ian B. Thompson (Carnegie Observatories), Joshua J. Adams (ASML), Stephen A. Shectman (Carnegie Observatories)
- arXiv.org - Astrophysics - Volume: 2014, Issue: 19 Dec
- arXiv:1412.5176 [pdf, ps, other]
Nine new metal-poor stars on the subgiant and red horizontal branches with high levels of r-process enhancement
- Virtual Journal - Volume 12, Issue 24 - article #92
- Ian U. Roederer, John J. Cowan, George W. Preston, Stephen A. Shectman, Christopher Sneden, and Ian B. Thompson
- Monthly Notices of the Royal Astronomical Society - Volume: 445, Issue: 3
- Abstract Full Text (HTML) Full Text (PDF)
Nine New Metal-Poor Stars on the Subgiant and Red Horizontal Branches with High Levels of r-process Enhancement
- Virtual Journal - Volume 12, Issue 22 - article #35
- Ian U. Roederer (U. Michigan), John J. Cowan (U. Oklahoma), George W. Preston, Stephen A. Shectman (Carnegie Observatories), Chris Sneden (U. Texas), Ian B. Thompson (Carnegie Observatories)
- arXiv.org - Astrophysics - Volume: 2014, Issue: 26 Sep
- arXiv:1409.5810 [pdf, ps, other]
A Search for Stars of Very Low Metal Abundance. VI. Detailed Abundances of 313 Metal-poor Stars
- Virtual Journal - Volume 12, Issue 20 - article #236
- Ian U. Roederer, George W. Preston, Ian B. Thompson, Stephen A. Shectman, Christopher Sneden, Gregory S. Burley, and Daniel D. Kelson
- Astronomical Journal - Volume: 147, Issue: 6
- View article PDF (5.13 MB)
Neutron-capture Nucleosynthesis in the First Stars
- Virtual Journal - Volume 12, Issue 17 - article #45
- Ian U. Roederer, George W. Preston, Ian B. Thompson, Stephen A. Shectman, and Christopher Sneden
- The Astrophysical Journal - Volume: 784, Issue: 2
- View article PDF (1.39 MB)
A Search for Stars of Very Low Metal Abundance. VI. Detailed Abundances of 313 Metal-Poor Stars
- Virtual Journal - Volume 12, Issue 13 - article #2
- Ian U. Roederer, George W. Preston, Ian B. Thompson, Stephen A. Shectman, Christopher Sneden, Gregory S. Burley, Daniel D. Kelson
- arXiv.org - Astrophysics - Volume: 2014, Issue: 28 Mar
- arXiv:1403.6853 [pdf, other]
Neutron-Capture Nucleosynthesis in the First Stars
- Virtual Journal - Volume 12, Issue 8 - article #5
- Ian U. Roederer (University of Michigan), George W. Preston, Ian B. Thompson, Stephen A. Shectman (Carnegie Observatories), Chris Sneden (University of Texas)
- arXiv.org - Astrophysics - Volume: 2014, Issue: 21 Feb
- arXiv:1402.4144 [pdf, ps, other]
New Hubble Space Telescope Observations of Heavy Elements in Four Metal-Poor Stars
- Virtual Journal - Volume 10, Issue 52 - article #60
- Ian U. Roederer, James E. Lawler, Jennifer S. Sobeck, Timothy C. Beers, John J. Cowan, Anna Frebel, Inese I. Ivans, Hendrik Schatz, Christopher Sneden, and Ian B. Thompson
- The Astrophysical Journal Supplement - Volume: 203, Issue: 2
- Abstract References Cited by Full text PDF (2.07 MB) HTML with Enhancements
New Hubble Space Telescope Observations of Heavy Elements in Four Metal-Poor Stars
- Virtual Journal - Volume 10, Issue 43 - article #14
- Ian U. Roederer, James E. Lawler, Jennifer S. Sobeck, Timothy C. Beers, John J. Cowan, Anna Frebel, Inese I. Ivans, Hendrik Schatz, Christopher Sneden, Ian B. Thompson
- arXiv.org - Astrophysics - Volume: 2012, Issue: 26 Oct
- arXiv:1210.6387 [pdf, ps, other]
A Second Neutron Star in M4?
- Virtual Journal - Volume 10, Issue 17 - article #58
- J. Kaluzny, A. Rozanska, M. Rozyczka, W. Krzeminski, and Ian B. Thompson
- The Astrophysical Journal Letters - Volume: 750, Issue: 1
- Abstract References Full text PDF (493 KB) View as HTML
A super-Li rich turnoff star in NGC 6397 - the puzzle persists
- Virtual Journal - Volume 10, Issue 13 - article #4
- Andreas Koch, Karin Lind, Ian B. Thompson, R. Michael Rich
- arXiv.org - Astrophysics - Volume: 2012, Issue: 30 Mar
- arXiv:1203.6079 [pdf, ps, other]
The Abundances of Neutron-capture Species in the Very Metal-poor Globular Cluster M15: A Uniform Analysis of Red Giant Branch and Red Horizontal Branch Stars
- Virtual Journal - Volume 9, Issue 23 - article #17
- Jennifer S. Sobeck, Robert P. Kraft, Christopher Sneden, George W. Preston, John J. Cowan, Graeme H. Smith, Ian B. Thompson, Stephen A. Shectman and Gregory S. Burley
- Astronomical Journal - Volume: 141, Issue: 6
- doi: 10.1088/0004-6256/141/6/175 Tag this article
Characterizing the Chemistry of the Milky Way Stellar Halo: Detailed Chemical Analysis of a Metal-poor Stellar Stream
- Virtual Journal - Volume 8, Issue 9 - article #57
- <em >Ian U. Roederer, Christopher Sneden, Ian B. Thompson, George W. Preston, and Stephen A. Shectman</em&gt,
- The Astrophysical Journal - Volume: 711, Issue: 2
- Abstract | References
Characterizing the Chemistry of the Milky Way Stellar Halo: Detailed Chemical Analysis of a Metal-Poor Stellar Stream
- Virtual Journal - Volume 8, Issue 3 - article #5
- Ian U. Roederer, Christopher Sneden, Ian B. Thompson, George W. Preston, Stephen A. Shectman
- arXiv.org - Astrophysics - Volume: 2010, Issue: 15 Jan
- arXiv:1001.1745 [ps, pdf, other]
A Puzzle Involving Galactic Bulge Microlensing Events
- Virtual Journal - Volume 7, Issue 48 - article #1
- Judith G. Cohen, Andrew Gould, Ian B. Thompson, Sofia Feltzing, Thomas Bensby, Jennifer A. Johnson, Wenjin Huang, Jorge Melendez, Sara Lucatello, Martin Asplund
- arXiv.org - Astrophysics - Volume: 2009, Issue: 26 Nov
- arXiv:0911.5081 [ps, pdf, other]
Clues to the Metallicity Distribution in the Galactic Bulge: Abundances in MOA-2008-BLG-310S and MOA-2008-BLG-311S
- Virtual Journal - Volume 7, Issue 25 - article #28
- <em >Judith G. Cohen, Ian B. Thompson, Takahiro Sumi, Ian Bond, Andrew Gould, Jennifer A. Johnson, Wenjin Huang, and Greg Burley</em&gt,
- The Astrophysical Journal - Volume: 699, Issue: 1
- Abstract | References
Clues to the Metallicity Distribution in the Galactic Bulge: Abundances in MOA-2008-BLG310 and MOA-2008-BLG311
- Virtual Journal - Volume 7, Issue 16 - article #1
- Judith G. Cohen, Ian B. Thompson, Takahiru Sumi, Ian Bond, Andrew Gould, Jennifer A. Johnson, Wenjin Huang, Greg Burley
- arXiv.org - Astrophysics - Volume: 2009, Issue: 17 Apr
- arXiv:0904.2020 [ps, pdf, other]
CS 22964−161: A Double‐Lined Carbon‐ and s‐Process–Enhanced Metal‐Poor Binary Star
- Virtual Journal - Volume 6, Issue 14 - article #23
- Ian B. Thompson, Inese I. Ivans, Sara Bisterzo, Christopher Sneden, Roberto Gallino, Sylvie Vauclair, Gregory S. Burley, Stephen A. Shectman, and George W. Preston
- The Astrophysical Journal - Volume: 677, Issue: 1
- Abstract-Full Text-PDF Version (1116 kB)
CS22964-161: A Double-Lined Carbon- and s-Process-Enhanced Metal-Poor Binary Star
- Virtual Journal - Volume 5, Issue 52 - article #5
- Ian B. Thompson, Inese I. Ivans, Sara Bisterzo, Christopher Sneden, Roberto Gallino, Sylvie Vauclair, Gregory S. Burley, Stephen A. Shectman, George W. Preston
- arXiv.org - Astrophysics - Volume: 2007, Issue: 27 Dec
- arXiv:0712.3228 [ps, pdf, other]
CS22964-161: A Double-Lined Carbon- and s-Process-Enhanced Metal-Poor Binary Star
- Virtual Journal - Volume 5, Issue 51 - article #18
- Ian B. Thompson, Inese I. Ivans, Sara Bisterzo, Christopher Sneden, Roberto Gallino, Sylvie Vauclair, Gregory S. Burley, Stephen A. Shectman, George W. Preston
- arXiv.org - Astrophysics - Volume: 2007, Issue: 20 Dec
- arXiv:0712.3228 [ps, pdf, other]
TY GRUIS: A METAL-POOR CARBON AND NEUTRON-CAPTURE-RICH RR LYRAE STAR
- Virtual Journal - Volume 4, Issue 39 - article #17
- George W. Preston, Ian B. Thompson, Christopher Sneden, Greg Stachowski, and Stephen A. Shectman
- Astronomical Journal - Volume 132, Issue 4
- Abstract Full Text with Enhancements PDF (420 kB)
ATMOSPHERES, CHEMICAL COMPOSITIONS, AND EVOLUTIONARY HISTORIES OF VERY METAL-POOR RED HORIZONTAL-BRANCH STARS IN THE GALACTIC FIELD AND IN NGC 7078 (M15)
- Virtual Journal - Volume 4, Issue 26 - article #22
- George W. Preston, Christopher Sneden, Ian B. Thompson, Stephen A. Shectman, and Gregory S. Burley
- Astronomical Journal - Volume 132, Issue 1
- Abstract Full Text with Enhancements PDF (731 kB)
Echelle Spectroscopy of a GRB Afterglow at z=3.969: A New Probe of the Interstellar and Intergalactic Media in the Young Universe
- Virtual Journal - Volume 3, Issue 33 - article #16
- Hsiao-Wen Chen (MIT/UChicago), Jason X. Prochaska (UCO/Lick Observatory), Joshua S. Bloom (UCB), Ian B. Thompson (Carnegie Observatory)
- ArXiv - Astrophysics – August 2005
- astro-ph/0508270 [ abs , ps , pdf , other ]

Results 1 - 35 of 35

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