Zobrazeno 1 - 10
of 633
pro vyhledávání: '"Cooper, Thomas P"'
Autor:
Timpano, Matteo, Cooper, Thomas A.
We present a simple analytical formula for the geometric concentration ratio of a circular trough optical concentrator coupled to a flat (planar) receiver. The receiver is sized to achieve full collection (no spillage) for any combination of acceptan
Externí odkaz:
http://arxiv.org/abs/2206.08244
Autor:
Senchyna, Peter, Stark, Daniel P., Charlot, Stephane, Plat, Adele, Chevallard, Jacopo, Chen, Zuyi, Jones, Tucker, Sanders, Ryan L., Rudie, Gwen C., Cooper, Thomas J., Bruzual, Gustavo
Metal-poor nearby galaxies hosting massive stars have a fundamental role to play in our understanding of both high-redshift galaxies and low metallicity stellar populations. But while much attention has been focused on their bright nebular gas emissi
Externí odkaz:
http://arxiv.org/abs/2111.11508
Autor:
Cooper, Thomas J., Rudie, Gwen C., Chen, Hsiao-Wen, Johnson, Sean D., Zahedy, Fakhri S., Chen, Mandy C., Boettcher, Erin, Walth, Gregory L., Cantalupo, Sebastiano, Cooksey, Kathy L., Faucher-Giguère, Claude-André, Greene, Jenny E., Lopez, Sebastian, Mulchaey, John S., Penton, Steven V., Petitjean, Patrick, Putman, Mary E., Rafelski, Marc, Rauch, Michael, Schaye, Joop, Simcoe, Robert A.
We present a detailed study of two partial Lyman limit systems (pLLSs) of neutral hydrogen column density $N_\mathrm{H\,I}\approx(1-3)\times10^{16}\,\mathrm{cm}^{-2}$ discovered at $z=0.5$ in the Cosmic Ultraviolet Baryon Survey (CUBS). Available far
Externí odkaz:
http://arxiv.org/abs/2110.13933
Autor:
Zahedy, Fakhri S., Chen, Hsiao-Wen, Cooper, Thomas M., Boettcher, Erin T., Johnson, Sean D., Rudie, Gwen C., Chen, Mandy C., Cantalupo, Sebastiano, Cooksey, Kathy L., Faucher-Giguère, Claude-André, Greene, Jenny E., Lopez, Sebastian, Mulchaey, John S., Penton, Steven V., Petitjean, Patrick, Putman, Mary E., Rafelski, Marc, Rauch, Michael, Schaye, Joop, Simcoe, Robert A., Walth, Gregory L.
(Abridged) We present a systematic investigation of physical conditions and elemental abundances in four optically thick Lyman-limit systems (LLSs) at $z=0.36-0.6$ discovered within the Cosmic Ultraviolet Baryon Survey (CUBS). CUBS LLSs exhibit multi
Externí odkaz:
http://arxiv.org/abs/2106.04608
Autor:
Simcoe, Robert A., Onoue, Masafusa, Eilers, Anna-Christina, Banados, Eduardo, Cooper, Thomas J., Furesz, Gabor, Hennawi, Joseph F., Venemans, Bram
We analyze relative abundances and ionization conditions in a strong absorption system at z=6.84, seen in the spectrum of the z=7.54 background quasar ULAS J134208.10+092838.61. Singly ionized C, Si, Fe, Mg, and Al measurements are consistent with a
Externí odkaz:
http://arxiv.org/abs/2011.10582
Autor:
Boettcher, Erin, Chen, Hsiao-Wen, Zahedy, Fakhri S., Cooper, Thomas J., Johnson, Sean D., Rudie, Gwen C., Chen, Mandy C., Petitjean, Patrick, Cantalupo, Sebastiano, Cooksey, Kathy L., Faucher-Giguère, Claude-André, Greene, Jenny E., Lopez, Sebastian, Mulchaey, John S., Penton, Steven V., Putman, Mary E., Rafelski, Marc, Rauch, Michael, Schaye, Joop, Simcoe, Robert A., Walth, Gregory L.
We report the serendipitous detection of an H$_{2}$-bearing damped Lyman-$\alpha$ absorber at z = 0.576 in the spectrum of the QSO J0111-0316 in the Cosmic Ultraviolet Baryon Survey. Spectroscopic observations from HST-COS in the far-ultraviolet reve
Externí odkaz:
http://arxiv.org/abs/2010.11958
Autor:
Andika, Irham Taufik, Jahnke, Knud, Onoue, Masafusa, Bañados, Eduardo, Mazzucchelli, Chiara, Novak, Mladen, Eilers, Anna-Christina, Venemans, Bram P., Schindler, Jan-Torge, Walter, Fabian, Neeleman, Marcel, Simcoe, Robert A., Decarli, Roberto, Farina, Emanuele Paolo, Marian, Victor, Pensabene, Antonio, Cooper, Thomas M., Rojas, Alejandra F.
Publikováno v:
The Astrophysical Journal, 903:34 (20pp), 2020 November 1
We present the discovery of PSO J083.8371+11.8482, a weak emission line quasar with extreme star formation rate at $z=6.3401$. This quasar was selected from Pan-STARRS1, UHS, and unWISE photometric data. Gemini/GNIRS spectroscopy follow-up indicates
Externí odkaz:
http://arxiv.org/abs/2009.07784
Autor:
Chen, Hsiao-Wen, Zahedy, Fakhri S., Boettcher, Erin, Cooper, Thomas M., Johnson, Sean D., Rudie, Gwen C., Chen, Mandy C., Walth, Gregory L., Cantalupo, Sebastiano, Cooksey, Kathy L., Faucher-Gigu`ere, Claude-Andre, Greene, Jenny E., Lopez, Sebastian, Mulchaey, John S., Penton, Steven V., Petitjean, Patrick, Putman, Mary E., Rafelski, Marc, Rauch, Michael, Schaye, Joop, Simcoe, Robert A., Weiner, Benjamin J.
We present initial results from the Cosmic Ultraviolet Baryon Survey (CUBS). CUBS is designed to map diffuse baryonic structures at redshift z<~1 using absorption-line spectroscopy of 15 UV-bright QSOs with matching deep galaxy survey data. CUBS QSOs
Externí odkaz:
http://arxiv.org/abs/2005.02408
Akademický článek
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Autor:
Connor, Thomas, Zahedy, Fakhri S., Chen, Hsiao-Wen, Cooper, Thomas J., Mulchaey, John S., Vikhlinin, Alexey
Publikováno v:
2019, ApJL, 884, L20
In the local universe, a large fraction of the baryon content is believed to exist as diffuse gas in filaments. While this gas is directly observable in X-ray emission around clusters of galaxies, it is primarily studied through its UV absorption. Re
Externí odkaz:
http://arxiv.org/abs/1909.10518