Results 11 to 20 of about 2,374,498 (256)

The Truncated Circumgalactic Medium of the Large Magellanic Cloud [PDF]

open access: yesThe Astrophysical Journal Letters
The 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
doaj   +4 more sources

The Impact of Starbursts on the Circumgalactic Medium [PDF]

open access: yesThe Astrophysical Journal, 2013
We present a study exploring the impact of a starburst on the properties of the surrounding circum-galactic medium (CGM): gas located beyond the galaxy's stellar body and extending out to the virial radius (200 kpc). We obtained ultraviolet spectroscopic
Borthakur, Sanchayeeta   +4 more
core   +6 more sources

The hidden circumgalactic medium

open access: yes, 2019
The cycling of baryons in and out of galaxies is what ultimately drives galaxy formation and evolution. The circumgalactic medium (CGM) represents the interface between the interstellar medium and the cosmic web, hence its properties are directly shaped ...
Andreani, Paola   +17 more
core   +5 more sources

The Study of the Circumgalactic Medium with Quasar Pairs

open access: yesThe 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 Circumgalactic Medium in Massive Halos [PDF]

open access: yes, 2016
This chapter presents a review of the current state of knowledge on the cool (T ~ 1e4 K) halo gas content around massive galaxies at z ~ 0.2-2. Over the last decade, significant progress has been made in characterizing the cool circumgalactic gas in ...
A. B. Ford   +173 more
core   +2 more sources

The Anisotropic Circumgalactic Medium of Sub-L* Galaxies

open access: yesThe Astrophysical Journal
Using 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
doaj   +3 more sources

The circumgalactic medium of high redshift galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2014
We study the properties of the circumgalactic medium (CGM) of high-$z$ galaxies in the metal enrichment simulations presented in Pallottini et al. 2014. At $z=4$, we find that the simulated CGM gas density profiles are self-similar, once scaled with the ...
Ferrara, Andrea   +2 more
core   +2 more sources

Understanding gas mixing in the circumgalactic medium

open access: yesMonthly Notices of the Royal Astronomical Society
ABSTRACT We study gas mixing in a simulated Milky Way–mass galaxy’s circumgalactic medium (CGM) using cosmological ‘zoom-in’ simulations. We insert tracer dyes in the CGM with different gas flows (shearing, coherent, and static) and diverse physical properties to track gas mixing.
Hilay Shah   +3 more
openaire   +3 more sources

Impacts of the Metagalactic Ultraviolet Background on Circumgalactic Medium Absorption Systems

open access: yesThe 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   +7 more
doaj   +2 more sources

Dynamics of Multiphase Carbon in the Turbulent Circumgalactic Medium

open access: yesThe Astrophysical Journal
The circumgalactic medium (CGM) plays a crucial role in regulating material and energy exchange between galaxies and their environments. The best means of observing this medium is through absorption-line spectroscopy, but we have yet to develop a ...
Yue Hu   +5 more
doaj   +2 more sources

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