Zobrazeno 1 - 10
of 274
pro vyhledávání: '"D. Oppenheimer"'
Autor:
G. Mark Voit, Christopher Carr, Drummond B. Fielding, Viraj Pandya, Greg L. Bryan, Megan Donahue, Benjamin D. Oppenheimer, Rachel S. Somerville
Publikováno v:
The Astrophysical Journal, Vol 976, Iss 2, p 151 (2024)
The scaling of galaxy properties with halo mass suggests that feedback loops regulate star formation, but there is no consensus yet about how those feedback loops work. To help clarify discussions of galaxy-scale feedback, Paper I presented a very si
Externí odkaz:
https://doaj.org/article/b384e8a491ff441ebe95f8f4fcd785d5
Autor:
G. Mark Voit, Viraj Pandya, Drummond B. Fielding, Greg L. Bryan, Christopher Carr, Megan Donahue, Benjamin D. Oppenheimer, Rachel S. Somerville
Publikováno v:
The Astrophysical Journal, Vol 976, Iss 2, p 150 (2024)
This paper presents a new framework for understanding the relationship between a galaxy and its circumgalactic medium (CGM). It focuses on how imbalances between heating and cooling cause either expansion or contraction of the CGM. It does this by tr
Externí odkaz:
https://doaj.org/article/8fdfb468ea204beda1fe322b0f16afc9
Autor:
Sameer, Nicolas Lehner, J. Christopher Howk, Andrew J. Fox, John M. O’Meara, Benjamin D. Oppenheimer
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 264 (2024)
We analyze the O vi content and kinematics for 126 H i -selected absorbers at 0.14 ≲ z ≲ 0.73 for which the metallicities of their cool photoionized phase have been determined. We separate the absorbers into 100 strong Ly α forest systems (SLFSs
Externí odkaz:
https://doaj.org/article/60525e0c0c8f4b1c9b24b41631bd56dc
Autor:
Samantha L. Garza, Jessica K. Werk, Benjamin D. Oppenheimer, Kirill Tchernyshyov, N. Nicole Sanchez, Yakov Faerman, Kate H. R. Rubin, Misty C. Bentz, Jonathan J. Davies, Joseph N. Burchett, Robert A. Crain, J. Xavier Prochaska
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 2, p 115 (2024)
We present an analysis of Hubble Space Telescope COS/G160M observations of C IV in the inner circumgalactic medium (CGM) of a novel sample of eight z ∼ 0, L ≈ L ^⋆ galaxies, paired with UV-bright QSOs at impact parameters ( R _proj ) between 25
Externí odkaz:
https://doaj.org/article/37d7ee4641764892b441b5726a75430c
Autor:
Gerrit Schellenberger, Ákos Bogdán, John A. ZuHone, Benjamin D. Oppenheimer, Nhut Truong, Ildar Khabibullin, Fred Jennings, Annalisa Pillepich, Joseph Burchett, Christopher Carr, Priyanka Chakraborty, Robert Crain, William Forman, Christine Jones, Caroline A. Kilbourne, Ralph P. Kraft, Maxim Markevitch, Daisuke Nagai, Dylan Nelson, Anna Ogorzalek, Scott Randall, Arnab Sarkar, Joop Schaye, Sylvain Veilleux, Mark Vogelsberger, Q. Daniel Wang, Irina Zhuravleva
Publikováno v:
The Astrophysical Journal, Vol 969, Iss 2, p 85 (2024)
The Astro2020 Decadal Survey has identified the mapping of the circumgalactic medium (CGM; the gaseous plasma around galaxies) as a key objective. We explore the prospects for characterizing the CGM in and around nearby galaxy halos with a future lar
Externí odkaz:
https://doaj.org/article/f83ec2d3863448dba86ccbd91d5c4c2b
Autor:
John A. ZuHone, Gerrit Schellenberger, Anna Ogorzałek, Benjamin D. Oppenheimer, Jonathan Stern, Ákos Bogdán, Nhut Truong, Maxim Markevitch, Annalisa Pillepich, Dylan Nelson, Joseph N. Burchett, Ildar Khabibullin, Caroline A. Kilbourne, Ralph P. Kraft, Paul E. J. Nulsen, Sylvain Veilleux, Mark Vogelsberger, Q. Daniel Wang, Irina Zhuravleva
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 1, p 49 (2024)
The hot, X-ray-emitting phase of the circumgalactic medium of massive galaxies is believed to be the reservoir of baryons from which gas flows onto the central galaxy and into which feedback from active galactic nuclei and stars inject mass, momentum
Externí odkaz:
https://doaj.org/article/f4539e1a93ab4d52a110df75797b72fb
Autor:
Yong Zheng, Yakov Faerman, Benjamin D. Oppenheimer, Mary E. Putman, Kristen B. W. McQuinn, Evan N. Kirby, Joseph N. Burchett, O. Grace Telford, Jessica K. Werk, Doyeon A. Kim
Publikováno v:
The Astrophysical Journal, Vol 960, Iss 1, p 55 (2023)
Dwarf galaxies are found to have lost most of their metals via feedback processes; however, there still lacks consistent assessment on the retention rate of metals in their circumgalactic medium (CGM). Here we investigate the metal content in the CGM
Externí odkaz:
https://doaj.org/article/92208b69291f41f88d9f2e565f339bd0
Publikováno v:
The Astrophysical Journal, Vol 960, Iss 1, p 28 (2023)
Quenching of star formation in the central galaxies of cosmological halos is thought to result from energy released as gas accretes onto a supermassive black hole. The same energy source also appears to lower the central density and raise the cooling
Externí odkaz:
https://doaj.org/article/5a1cf280f00f462f9c2aadc28203b7dc
Autor:
Ákos Bogdán, Ildar Khabibullin, Orsolya E. Kovács, Gerrit Schellenberger, John ZuHone, Joseph N. Burchett, Klaus Dolag, Eugene Churazov, William R. Forman, Christine Jones, Caroline Kilbourne, Ralph P. Kraft, Erwin Lau, Maxim Markevitch, Dan McCammon, Daisuke Nagai, Dylan Nelson, Anna Ogorzalek, Benjamin D. Oppenheimer, Arnab Sarkar, Yuanyuan Su, Nhut Truong, Sylvain Veilleux, Stephan Vladutescu-Zopp, Irina Zhuravleva
Publikováno v:
The Astrophysical Journal, Vol 953, Iss 1, p 42 (2023)
The circumgalactic medium (CGM) plays a crucial role in galaxy evolution as it fuels star formation, retains metals ejected from the galaxies, and hosts gas flows in and out of galaxies. For Milky Way–type and more-massive galaxies, the bulk of the
Externí odkaz:
https://doaj.org/article/ecdb383d60804e16bb34a734db3a8791
Autor:
Michelle A. Berg, Nicolas Lehner, J. Christopher Howk, John M. O’Meara, Joop Schaye, Lorrie A. Straka, Kathy L. Cooksey, Todd M. Tripp, J. Xavier Prochaska, Benjamin D. Oppenheimer, Sean D. Johnson, Sowgat Muzahid, Rongmon Bordoloi, Jessica K. Werk, Andrew J. Fox, Neal Katz, Martin Wendt, Molly S. Peeples, Joseph Ribaudo, Jason Tumlinson
Publikováno v:
The Astrophysical Journal, Vol 944, Iss 1, p 101 (2023)
The bimodal absorption system imaging campaign (BASIC) aims to characterize the galaxy environments of a sample of 36 H i -selected partial Lyman limit systems (pLLSs) and Lyman limit systems (LLSs) in 23 QSO fields at z ≲ 1. These pLLSs/LLSs provi
Externí odkaz:
https://doaj.org/article/295ba686bbc144d98994d5c3725e6bff