Results 71 to 80 of about 1,565,970 (180)

The Morphology and Kinematics of a Giant, Symmetric Nebula around a Radio-loud Quasar 3C 57: Extended Rotating Gas or Biconical Outflows?

The Astrophysical Journal
Gas flows between galaxies and the circumgalactic medium play a crucial role in galaxy evolution. When ionized by a quasar, these gas flows can be directly traced as giant nebulae. We present a study of a giant nebula around a radio-loud quasar, 3C 57 at
Zhuoqi (Will) Liu, Sean D. Johnson, Jennifer I-Hsiu Li, Benoît Epinat, Gwen C. Rudie, Ana Monreal-Ibero, Sebastiano Cantalupo, Zhijie Qu, Mandy C. Chen, Wolfram Kollatschny, Sowgat Muzahid, Fakhri S. Zahedy, Elise Kesler, Nishant Mishra   +13 more
doaj   +1 more source

Cosmic Ray Mediated Thermal Fronts in the Warm-hot Circumgalactic Medium

The Astrophysical Journal
We investigate the 1D plane-parallel front connecting the warm (10 ^4 K) and hot (10 ^6 K) phases of the circumgalactic medium (CGM), focusing on the influence of cosmic rays (CRs) in shaping these transition layers.
Hanjue Zhu, Ellen G. Zweibel, Nickolay Y. Gnedin   +2 more
doaj   +1 more source

Figuring Out Gas & Galaxies in Enzo (FOGGIE). XV. Examining the Spatial and Kinematic Relationship between Circumgalactic Mg ii and O vi

The Astrophysical Journal
Understanding the thermodynamic properties of the circumgalactic medium (CGM) is key to uncovering the baryon cycle in galaxies. Here, we present spatial and kinematic relationships between Mg ii and O vi , as representatives for low- and high-ion ...
Mackenzie Ticoras, Brian W. O’Shea, Claire Kopenhafer, Cassandra Lochhaas, Molly S. Peeples, Jason Tumlinson, Cameron W. Trapp, Vida Saeedzadeh, Ramona Augustin, Nicolas Lehner, Britton D. Smith, J. Christopher Howk   +11 more
doaj   +1 more source

The Circumgalactic Medium in Massive Halos [PDF]

, 2017
29 pages, 7 figures, invited review to appear in "Gas Accretion onto Galaxies", Astrophysics and Space Science Library, eds. A. Fox & R.
openaire   +2 more sources

Characterizing the Circumgalactic Medium in Emission [PDF]

, 2015
In this thesis I focus on understanding the physical properties of extended Lyman-alpha emitting gas at high redshift, from the circumgalactic medium (CGM) and intergalactic medium (IGM). First, I investigate the physics of giant, luminous Lyman-alpha nebulae known as Lyman alpha blobs (LABs).
openaire   +1 more source

MAGiiCAT V. ORIENTATION of OUTFLOWS and ACCRETION DETERMINE the KINEMATICS and COLUMN DENSITIES of the CIRCUMGALACTIC MEDIUM

, 2015
We investigate the dependence of gas kinematics and column densities in the MgII-absorbing circumgalactic medium on galaxy color, azimuthal angle, and inclination to trace baryon cycle processes. Our sample of 30 foreground isolated galaxies at 0.
Michael Murphy (18924760), Nikole Nielsen (18923479), Jessica L. Evans (19001873), Glenn Kacprzak (18924052), Christopher W. Churchill (18999602)   +4 more
core   +1 more source

Understanding magnetic fields in circumgalactic gas

, 2023
Many galaxies in the Universe, including our own Milky Way, are sites of star formation. For them to continue producing stars over cosmic time, they require a steady supply of cold gas.
Jung, Seoyoung Lyla
core   +1 more source

The Cosmic Ultraviolet Baryon Survey (CUBS). IX. The Enriched Circumgalactic and Intergalactic Medium Around Star-forming Field Dwarf Galaxies Traced by O vi Absorption

The Astrophysical Journal
The shallow potential wells of star-forming dwarf galaxies make their surrounding circumgalactic and intergalactic medium (CGM/IGM) sensitive laboratories for studying the inflows and outflows thought to regulate galaxy evolution.
Nishant Mishra, Sean D. Johnson, Gwen C. Rudie, Hsiao-Wen Chen, Joop Schaye, Zhijie Qu, Fakhri S. Zahedy, Erin T. Boettcher, Sebastiano Cantalupo, Mandy C. Chen, Claude-André Faucher-Giguére, Jenny E. Greene, Jennifer I-Hsiu Li, Zhuoqi (Will) Liu, Sebastian Lopez, Patrick Petitjean   +15 more
doaj   +1 more source

Impacts of the Metagalactic Ultraviolet Background on Circumgalactic Medium Absorption Systems

The Astrophysical Journal
Among the many different pieces of physics that go into simulations of the circumgalactic medium (CGM), the metagalactic ultraviolet background (UVB) plays a significant role in determining the ionization state of different metal species.
Elias Taira, Claire Kopenhafer, Brian W. O’Shea, Alexis Manning, Evelyn Fuhrman, Molly S. Peeples, Jason Tumlinson, Britton D. Smith   +7 more
doaj   +1 more source

MUSEQuBES: Probing Anisotropies in Gas and Metal Distributions in the Circumgalactic Medium

The Astrophysical Journal
We investigate the azimuthal dependence of H i and O vi -bearing gas in the circumgalactic medium (CGM) of 113 isolated galaxies in the redshift range 0.12 
Sayak Dutta, Sowgat Muzahid, Joop Schaye, Sean Johnson, Edmund Christian Herenz, Ismael Pessa, Ramona Augustin, Nicolas F. Bouché, Joey Braspenning, Sebastiano Cantalupo, Sourav Das, Martin Wendt   +11 more
doaj   +1 more source