Results 71 to 80 of about 437 (157)

The Dispersion Measure and Scattering of Fast Radio Bursts: Contributions from Multicomponents, and Clues for the Intrinsic Properties

The Astrophysical Journal Supplement Series
Fast radio bursts (FRBs) are luminous, millisecond-duration transients that offer great potential for probing the Universe, yet their physical origins remain unclear.
Jian-feng Mo, Weishan Zhu, Long-Long Feng   +2 more
doaj   +1 more source

DIISC-VI (COS-DIISC): Ultraviolet Metal Absorption Relative to the H i Disk of Galaxies

The Astrophysical Journal
As part of the Deciphering the Interplay between the Interstellar medium, Stars, and the Circumgalactic medium (DIISC) survey, we present the UV metal absorption features in the circumgalactic medium (CGM) near the H i gas disk (
Brad Koplitz, Sanchayeeta Borthakur, Timothy Heckman, Mansi Padave, Tyler McCabe, Jason Tumlinson, Andrew J. Fox, Guinevere Kauffmann   +7 more
doaj   +1 more source

Detection of companion galaxies around hot dust-obscured hyper-luminous galaxy W0410-0913. [PDF]

Nat Commun, 2022
Ginolfi M, Piconcelli E, Zappacosta L, Jones GC, Pentericci L, Maiolino R, Travascio A, Menci N, Carniani S, Rizzo F, Arrigoni Battaia F, Cantalupo S, De Breuck C, Graziani L, Knudsen K, Laursen P, Mainieri V, Schneider R, Stanley F, Valiante R, Verhamme A.   +20 more
europepmc   +1 more source

THE HIGHLY IONIZED CIRCUMGALACTIC MEDIUM IS KINEMATICALLY UNIFORM AROUND GALAXIES

The Astrophysical Journal, 2017
ABSTRACT The circumgalactic medium (CGM) traced by O vi  doublet absorption has been found to concentrate along the projected major and minor axes of the host galaxies. This suggests that O vi traces accreting and outflowing gas, respectively, which are key components of ...
Nikole M. Nielsen, Glenn G. Kacprzak, Sowgat Muzahid, Christopher W. Churchill, Michael T. Murphy, Jane C. Charlton   +5 more
openaire   +5 more sources

The Signatures of Density Fluctuations and Mixing Gas in Circumgalactic Absorption Systems

The Astrophysical Journal
We investigate the prospects for detecting and constraining density and temperature inhomogeneities in the circumgalactic medium using absorption measurements of metal ions.
Yakov Faerman, Daniel R. Piacitelli, Matthew McQuinn, Jessica K. Werk   +3 more
doaj   +1 more source

Phosphorus-bearing molecules PO and PN at the edge of the Galaxy. [PDF]

Nature, 2023
Koelemay LA, Gold KR, Ziurys LM.
europepmc   +1 more source

MUSEQuBES: Physical Conditions, Origins, and Multielement Abundances of the Circumgalactic Medium of an Isolated, Star-forming Dwarf Galaxy at z = 0.57

The Astrophysical Journal Letters
In dwarf galaxy models, outflows expel metal-enriched interstellar medium (ISM) into the circumgalactic medium (CGM) to reproduce their observed low metallicities, but measurements of dwarf CGM properties are scarce.
Sean D. Johnson, Nishant Mishra, Sowgat Muzahid, Gwen C. Rudie, Fakhri S. Zahedy, Zhijie Qu, Claude-André Faucher-Giguère, Jonathan Stern, Jennifer I-Hsiu Li, Elise Fuller, Sebastiano Cantalupo, Hsiao-Wen Chen, Ahmad Kadri, Suyash Kumar, Zhuoqi (Will) Liu, Gregory Walth   +15 more
doaj   +1 more source

The origin of cold gas in the circumgalactic medium

Astronomy & Astrophysics
Context. The presence of cold gas (T ≲ 104 K) in the circumgalactic medium (CGM) of galaxies has been confirmed in observations and in high-resolution simulations, but its origin is still a puzzle. Possible mechanisms are cold accretion from the intergalactic medium (IGM), clumps embedded in outflows and transported from the disk, and gas detaching ...
Decataldo, Davide, Shen, Sijing, Mayer, Lucio, Baumschlager, Bernhard, Madau, Piero   +4 more
openaire   +4 more sources

Mapping the z ∼ 2 Circumgalactic Medium with KBSS Galaxy Pairs

The Astrophysical Journal
We present new results on the spatial structure and kinematics of the circumgalactic medium (CGM) of z  ∼ 2 star-forming galaxies drawn from the Keck Baryonic Structure Survey, using Ly α and metallic ion absorption recorded in spectra of background ...
Nikolaus Z. Prusinski, Charles C. Steidel, Yuguang Chen   +2 more
doaj   +1 more source

The Circumgalactic Medium Traced by Mg ii Absorption with DESI: Dependence on Galaxy Stellar Mass, Star Formation Rate, and Azimuthal Angle

The Astrophysical Journal
Understanding the circumgalactic medium (CGM) distribution of galaxies is the key to revealing the dynamical exchange of materials between galaxies and their surroundings.
Zeyu Chen, Enci Wang, Hu Zou, Siwei Zou, Yang Gao, Huiyuan Wang, Haoran Yu, Cheng Jia, Haixin Li, Chengyu Ma, Yao Yao, Weiyu Ding, Runyu Zhu   +12 more
doaj   +1 more source