Results 81 to 90 of about 2,374,498 (256)

Gas Kinematics in the Multiphase Circumgalactic Medium [PDF]

Proceedings of the International Astronomical Union, 2016
AbstractWe use high-resolution Keck, VLT, or Hubble Space Telescope spectra of background quasars to examine the kinematic properties of the multiphase, metal-enriched circumgalactic medium in the outskirts of galaxies at 0.08 < zgal < 1.0, focusing on the low-ionization Mgii and high-ionization Ovi doublets.
Nikole M. Nielsen, Glenn G. Kacprzak, Christopher W. Churchill, Michael T. Murphy, Sowgat Muzahid, Jane C. Charlton, Jessica L. Evans   +6 more
openaire   +1 more source

The Cosmic Ultraviolet Baryon Survey (CUBS). VII. On the Warm-hot Circumgalactic Medium Probed by O vi and Ne viii at 0.4 ≲ z ≲ 0.7 [PDF]

Astrophysical Journal
This paper presents a newly established sample of 103 unique galaxies or galaxy groups at 0.4 ≲ z ≲ 0.7 from the Cosmic Ultraviolet Baryon Survey (CUBS) for studying the warm-hot circumgalactic medium (CGM) probed by both O vi and Ne viii absorption. The
Zhijie Qu, Hsiao-Wen Chen, S. Johnson, G. Rudie, F. Zahedy, D. DePalma, J. Schaye, E. Boettcher, S. Cantalupo, Mandy C. Chen, C. Faucher-Giguére, J. I. Li, J. Mulchaey, P. Petitjean, M. Rafelski   +14 more
semanticscholar   +1 more source

On the Origin of High-velocity Clouds in the Galaxy

The Astrophysical Journal
The origin of our Galaxy’s high-velocity clouds (HVCs) remains a mystery after many decades of effort. In this paper, we use the TNG50 simulation of the IllustrisTNG project to identify cool, dense clouds that match observations of Galactic H i HVCs.
Scott Lucchini, Jiwon Jesse Han, Lars Hernquist, Charlie Conroy   +3 more
doaj   +1 more source

The circumgalactic medium

This is a pre-print of a chapter for the Encyclopedia of Astrophysics (edited by I. Mandel, section editor S.
Chen, Hsiao-Wen, Zahedy, Fakhri S.
openaire   +2 more sources

The hot circumgalactic medium in the eROSITA All-Sky Survey. III. Star-forming and quiescent galaxies [PDF]

Astronomy & Astrophysics
The galaxy population shows a characteristic bimodal distribution based on the star formation activity and is sorted into star-forming or quiescent. These two subpopulations have a tendency to be located in different mass halos. The circumgalactic medium
Yi Zhang, J. Comparat, G. Ponti, A. Merloni, Kirpal Nandra, F. Haberl, N. Truong, A. Pillepich, P. Popesso, N. Locatelli, Xiaoyuan Zhang, J. Sanders, Xueying Zheng, A. Liu, Teng Liu, P. Predehl, M. Salvato, M. Bruggen, S. Shreeram, Michael C. H. Yeung   +19 more
semanticscholar   +1 more source

The Cosmic Ultraviolet Baryon Survey: Empirical Characterization of Turbulence in the Cool Circumgalactic Medium [PDF]

, 2023
Hsiao‐Wen Chen, Zhijie Qu, Michael Rauch, Mandy C. Chen, Fakhri S. Zahedy, Sean D. Johnson, Joop Schaye, Gwen C. Rudie, Erin Boettcher, Sebastiano Cantalupo, Claude‐André Faucher‐Giguère, Jenny E. Greene, Sebastián López, Robert A. Simcoe   +13 more
openalex   +1 more source

The effect of rotation on the thermal instability of stratified galactic atmospheres - I. Local analysis

, 2019
Observations show that (i) multiple gas phases can coexist in the atmospheres of galaxies and clusters; (ii) these atmospheres may be significantly rotating in the inner parts, with typical velocities that approach or even exceed the local sound speed ...
Sobacchi, Emanuele, Sormani, Mattia
core   +1 more source

X-ray Emission from the Interstellar and Circumgalactic Medium of Elliptical Galaxies based on MACER simulations [PDF]

, 2022
Aditi Vijayan, Bocheng Zhu, Miao Li, Feng Yuan, Luis C. Ho   +4 more
openalex   +1 more source

The impact of galactic feedback on the circumgalactic medium [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
17 pages, 12 figures, accepted to ...
Suresh, Joshua, Bird, Simeon, Vogelsberger, Mark, Genel, Shy, Torrey, Paul, Sijacki, Debora, Springel, Volker, Hernquist, Lars   +7 more
openaire   +5 more sources

MUSEQuBES: The Column Density, Covering Fraction, and Mass of O vi-bearing Gas in and Around Low-redshift Galaxies

The Astrophysical Journal
We present a study of O vi -bearing gas around 247 low-mass (median ${\mathrm{log}}_{10}({M}_{\star }/{M}_{\odot })$ = 8.7) galaxies at low redshifts (0.1 < z < 0.7) using background quasars as part of the MUSE Quasar-fields Blind Emitters Survey ...
Sayak Dutta, Sowgat Muzahid, Joop Schaye, Nicolas F. Bouché, Sebastiano Cantalupo, Hsiao-Wen Chen, Sean Johnson   +6 more
doaj   +1 more source