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Results 1 - 20 of 20

The PHLEK Survey: A New Determination of the Primordial Helium Abundance
- Virtual Journal - Volume 18, Issue 25 - article #29
- Tiffany Hsyu, Ryan J. Cooke, J. Xavier Prochaska,, Michael Bolte
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/896/1/77
Testing Galaxy Formation Simulations with Damped Lyman-${alpha}$ Abundance and Metallicity Evolution. (arXiv:1910.07541v1 [astro-ph.GA])
- Virtual Journal - Volume 17, Issue 42 - article #5
- Sultan Hassan (NMSU/UWC), Kristian Finlator (NMSU/DAWN), Romeel Davé, (Edinburgh/UWC/SAAO), Christopher W. Churchill (NMSU), J. Xavier Prochaska (UCSC/Kavli IPMU)
- http://arxiv.org/abs/1910.07541
A metal-poor damped Ly-alpha system at redshift 6.4. (arXiv:1903.06186v1 [astro-ph.GA])
- Virtual Journal - Volume 17, Issue 12 - article #2
- Eduardo Banados, Michael Rauch, Roberto Decarli, Emanuele P. Farina, Chiara Mazzucchelli, Bram P. Venemans, Fabian Walter, Robert A. Simcoe, J. Xavier Prochaska, Thomas Cooper, Frederick B. Davies, Shi-Fan S. Chen
- http://arxiv.org/abs/1903.06186
Searching for the Lowest-metallicity Galaxies in the Local Universe
- Virtual Journal - Volume 16, Issue 34 - article #32
- Tiffany Hsyu, Ryan J. Cooke, J. Xavier Prochaska,, Michael Bolte
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/863/2/134
A Neutron Star Binary Merger Model for GW170817/GRB170817a/SSS17a. (arXiv:1710.05453v1 [astro-ph.HE])
- Virtual Journal - Volume 15, Issue 42 - article #7
- Ariadna Murguia-Berthier, Enrico Ramirez-Ruiz, Charles D. Kilpatrick, Ryan J. Foley, Daniel Kasen, William H. Lee, Anthony L. Piro, David A. Coulter, Maria R. Drout, Barry F. Madore, Benjamin J. Shappee, Yen-Chen Pan, J. Xavier Prochaska, Armin Rest, César Rojas-Bravo, Matthew R. Siebert, Joshua D. Simon
- http://arxiv.org/abs/1710.05453
Electromagnetic Evidence that SSS17a is the Result of a Binary Neutron Star Merger. (arXiv:1710.05434v1 [astro-ph.HE])
- Virtual Journal - Volume 15, Issue 42 - article #20
- Charles D. Kilpatrick, Ryan J. Foley, Daniel Kasen, Ariadna Murguia-Berthier, Enrico Ramirez-Ruiz, David A. Coulter, Maria R. Drout, Anthony L. Piro, Benjamin J. Shappee, Konstantina Boutsia, Carlos Contreras, Francesco Di Mille, Barry F. Madore, Nidia Morrell, Yen-Chen Pan, J. Xavier Prochaska, Armin Rest, César Rojas-Bravo, Matthew R. Siebert, Joshua D. Simon, Natalie Ulloa
- http://arxiv.org/abs/1710.05434
The Little Cub: Discovery of an Extremely Metal-Poor Star-Forming Galaxy in the Local Universe. (arXiv:1708.01260v1 [astro-ph.GA])
- Virtual Journal - Volume 15, Issue 32 - article #8
- Tiffany Hsyu, Ryan J. Cooke, J. Xavier Prochaska, Michael Bolte
- http://arxiv.org/abs/1708.01260
Low-metallicity Absorbers Account for Half of the Dense Circumgalactic Gas at z ≲ 1
- Virtual Journal - Volume 14, Issue 45 - article #20
- Christopher B. Wotta, Nicolas Lehner, J. Christopher Howk, John M. OâMeara,, J. Xavier Prochaska
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/831/1/95
The Cosmic Evolution of the Metallicity Distribution of Ionized Gas Traced by Lyman Limit Systems. (arXiv:1608.02588v1 [astro-ph.GA])
- Virtual Journal - Volume 14, Issue 33 - article #21
- Nicolas Lehner, John M. O'Meara, J. Christopher Howk, J. Xavier Prochaska, Michele Fumagalli
- http://arxiv.org/abs/1608.02588
Data Reduction with the MIKE Spectrometer
- Virtual Journal - Volume 13, Issue 25 - article #27
- Rebecca A. Bernstein (1), Scott M. Burles (2), J. Xavier Prochaska (3) ((1) Observatories of the Carnegie Institution for Science, (2) Cutler Group, (3) UCO/Lick, University of California, Santa Cruz)
- arXiv.org - Astrophysics - Volume: 2015, Issue: 3 Jul
- arXiv:1506.08864 [pdf, ps, other]
The Neutral Hydrogen Cosmological Mass Density at z=5
- Virtual Journal - Volume 13, Issue 23 - article #11
- Neil H. M. Crighton, Michael T. Murphy, J. Xavier Prochaska, Gábor Worseck, Marc Rafelski, George D. Becker, Sara L. Ellison, Michele Fumagalli, Sebastian Lopez, Avery Meiksin, John M. O'Meara
- arXiv.org - Astrophysics - Volume: 2015, Issue: 12 Jun
- arXiv:1506.02037 [pdf, other]
The COS-Dwarfs Survey: The Carbon Reservoir Around sub-L* Galaxies
- Virtual Journal - Volume 12, Issue 20 - article #154
- Rongmon Bordoloi, Jason Tumlinson, Jessica K. Werk, Benjamin D. Oppenheimer, Molly S. Peeples, J. Xavier Prochaska, Todd M. Tripp, Neal Katz, Romeel Davé, Andrew Fox, Christopher Thom, Amanda Brady Ford, David H. Weinberg, Joseph N. Burchett, Juna A. Kollmeier
- arXiv.org - Astrophysics - Volume: 2014, Issue: 6 Jun
- arXiv:1406.0509 [pdf, ps, other]
The Rapid Decline in Metallicity of Damped Lyα Systems at z ~ 5
- Virtual Journal - Volume 12, Issue 8 - article #43
- Marc Rafelski, Marcel Neeleman, Michele Fumagalli, Arthur M. Wolfe, and J. Xavier Prochaska
- The Astrophysical Journal Letters - Volume: 782, Issue: 2
- View article PDF (1.01 MB)
Metal-Poor, Cool Gas in the Circumgalactic Medium of a z = 2.4 Star-Forming Galaxy: Direct Evidence for Cold Accretion?
- Virtual Journal - Volume 11, Issue 30 - article #9
- Neil H. M. Crighton, Joseph F. Hennawi, J. Xavier Prochaska
- arXiv.org - Astrophysics - Volume: 2013, Issue: 26 Jul
- arXiv:1307.6588 [pdf, ps, other]
A Search for Boron in Damped Lyα Systems
- Virtual Journal - Volume 11, Issue 26 - article #3
- Trystyn A. M. Berg, Sara L. Ellison, Kim A. Venn, J. Xavier Prochaska
- arXiv.org - Astrophysics - Volume: 2013, Issue: 28 Jun
- arXiv:1306.6561 [pdf, other]
The COS-Halos Survey: An Empirical Description of Metal-line Absorption in the Low-redshift Circumgalactic Medium
- Virtual Journal - Volume 11, Issue 6 - article #25
- Jessica K. Werk, J. Xavier Prochaska, Christopher Thom, Jason Tumlinson, Todd M. Tripp, John M. O'Meara, and Molly S. Peeples
- The Astrophysical Journal Supplement - Volume: 204, Issue: 2
- Abstract References Full text PDF (2.53 MB) Enhanced article HTML
Metallicity Evolution of Damped Lyα Systems Out to z ~ 5
- Virtual Journal - Volume 10, Issue 33 - article #34
- Marc Rafelski, Arthur M. Wolfe, J. Xavier Prochaska, Marcel Neeleman, and Alexander J. Mendez
- The Astrophysical Journal - Volume: 755, Issue: 2
- Abstract References Full text PDF (5.49 MB) HTML with Enhancements
Detection of Pristine Gas Two Billion Years After the Big Bang
- Virtual Journal - Volume 9, Issue 48 - article #58
- Michele Fumagalli, John M. O'Meara, and J. Xavier Prochaska
- Science - Volume: 334, Issue: 6060
Detection of Pristine Gas Two Billion Years after the Big Bang
- Virtual Journal - Volume 9, Issue 45 - article #5
- Michele Fumagalli, John M. O'Meara, J. Xavier Prochaska
- arXiv.org - Astrophysics - Volume: 2011, Issue: 11 Nov
- arXiv:1111.2334 [pdf, ps, other]
The Last Eight-billion Years of Intergalactic Si IV Evolution
- Virtual Journal - Volume 9, Issue 23 - article #40
- Kathy L. Cooksey, J. Xavier Prochaska, Christopher Thom and Hsiao-Wen Chen
- The Astrophysical Journal - Volume: 729, Issue: 2
- Abstract References Full text PDF (581 KB) HTML with Enhancements

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