Results 1 to 10 of about 437 (157)
Asymmetric eROSITA bubbles as the evidence of a circumgalactic medium wind [PDF]
Nature Communications, 2023 The origins of the pair of X-ray bubbles, called eROSITA bubbles (eRBs), detected in the halo of Milky Way are debated. Here, the authors show hydrodynamical simulations suggesting circumgalactic medium wind model can explain asymmetric eRBs.
Guobin Mou +8 more
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The Study of the Circumgalactic Medium with Quasar Pairs
The Astrophysical Journal Supplement Series, 2023 We have collected 10,025 foreground–background quasar pairs with projected distances d _p < 500 kpc from the large quasar catalog of the Sloan Digital Sky Survey DR16Q. We investigate the properties of the Mg ii absorption lines with W _r > 0.15 Å around
Zhi-Fu Chen +7 more
doaj +3 more sources
The Anisotropic Circumgalactic Medium of Sub-L* Galaxies
The Astrophysical JournalUsing stacked emission-line flux measurements of cool circumgalactic gas (CGM) in lower-mass galaxies (10 ^9.0 ≤ M _* / M _⊙ ≤ 10 ^10.2 ), we measure the dependence of the emission characteristics on orientation relative to the disk plane as a function ...
Huanian Zhang, Miao Li, Dennis Zaritsky
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The Truncated Circumgalactic Medium of the Large Magellanic Cloud
The Astrophysical Journal LettersThe Large Magellanic Cloud (LMC) is the nearest massive galaxy to the Milky Way (MW). Its circumgalactic medium (CGM) is complex and multiphase, containing both stripped H i structures like the Magellanic Stream and Bridge and a diffuse warm corona seen ...
Sapna Mishra +8 more
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The low-redshift circumgalactic medium in
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT We examine the properties of the low-redshift circumgalactic medium (CGM) around star-forming and quenched galaxies in the simba cosmological hydrodynamic simulations, focusing on comparing H i and metal line absorption to observations from the Cosmic Origins Spectrograph (COS)-Halos and COS-Dwarfs surveys. Halo baryon fractions
Sarah Appleby +4 more
openaire +3 more sources
Properties of the simulated circumgalactic medium [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT The circumgalactic medium (CGM) is closely linked to galaxy formation and evolution, but difficult to characterize observationally and typically poorly resolved in cosmological simulations. We use spherically symmetric, idealized, high-resolution simulations of the CGM in $10^{12}$ and $10^{11}\, \mathrm{M}_\odot$ dark matter ...
Cassandra Lochhaas +4 more
openaire +2 more sources
HUBS: a dedicated hot circumgalactic medium explorer [PDF]
Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray, 2020 The Hot Universe Baryon Surveyor (HUBS) mission is proposed to study "missing" baryons in the universe. Unlike dark matter, baryonic matter is made of elements in the periodic table, and can be directly observed through the electromagnetic signals that it produces.
Wei Cui +78 more
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The Astrophysical Journal, 2023 Observed breakBRD (“break bulges in red disks”) galaxies are a nearby sample of face-on disk galaxies with particularly centrally concentrated star formation: they have red disks but recent star formation in their centers as measured by the D _n 4000 ...
Stephanie Tonnesen +2 more
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Magnetizing the circumgalactic medium of disc galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT The circumgalactic medium (CGM) is one of the frontiers of galaxy formation and intimately connected to the galaxy via accretion of gas on to the galaxy and gaseous outflows from the galaxy. Here, we analyse the magnetic field in the CGM of the Milky Way-like galaxies simulated as part of the auriga project that constitutes a ...
Rüdiger Pakmor +9 more
openaire +5 more sources
The Astrophysical Journal, 2023 The circumgalactic medium (CGM) is often assumed to exist in or near hydrostatic equilibrium, with the regulation of accretion and the effects of feedback treated as perturbations to a stable balance between gravity and thermal pressure.
Cassandra Lochhaas +11 more
doaj +1 more source