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Related papers: The multiphase circumgalactic medium and its relat…

200 papers

The circumgalactic medium (CGM) is a multi-phase, dynamic interface between galaxy and the intergalactic medium, providing crucial diagnostics of galaxy evolution. However, direct evidence for a hot (million-Kelvin) CGM around present-day…

Astrophysics of Galaxies · Physics 2026-01-26 Lin He , Zhiyuan Li

We introduce IGM-Vis, a novel astrophysics visualization and data analysis application for investigating galaxies and the gas that surrounds them in context with their larger scale environment, the Cosmic Web. Environment is an important…

Instrumentation and Methods for Astrophysics · Physics 2019-04-29 Joseph N. Burchett , David Abramov , Jasmine Otto , Cassia Artanegara , J. Xavier Prochaska , Angus G. Forbes

The majority of baryons reside beyond the optical extent of a galaxy in the circumgalactic and intergalactic media (CGM/IGM). Gaseous halos are inextricably linked to the appearance of their host galaxies through a complex story of…

Absorption-line measurements of the circumgalactic medium (CGM) display a highly non-uniform distribution of lower ionization state species accompanied by more widespread higher ionization state material. This suggests that the CGM is a…

Astrophysics of Galaxies · Physics 2022-03-14 Edward Buie , Evan Scannapieco , G. Mark Voit

The circumgalactic medium (CGM), i.e. the gaseous haloes around galaxies, is both the reservoir of gas that fuels galaxy growth and the repository of gas expelled by galactic winds. Most cosmological, hydrodynamical simulations focus their…

Astrophysics of Galaxies · Physics 2019-04-12 Freeke van de Voort , Volker Springel , Nir Mandelker , Frank C. van den Bosch , Rüdiger Pakmor

The pervasive presence of warm gas in galaxy halos suggests that the circumgalactic medium (CGM) is multiphase in its ionization structure and complex in its kinematics. Some recent state-of-the-art cosmological galaxy simulations predict…

Ubiquitous detections of cold/warm gas around galaxies indicate that the circumgalactic medium (CGM) is multiphase and dynamic. Recent state-of-the-art cosmological galaxy simulations have generally underproduced the column density of cold…

Astrophysics of Galaxies · Physics 2020-01-08 Cameron J. Liang , Ian S. Remming

We use idealized 3D hydrodynamic simulations to study the dynamics and thermal structure of the circumgalactic medium (CGM). Our simulations quantify the role of cooling, stellar feedback driven galactic winds and cosmological gas accretion…

Astrophysics of Galaxies · Physics 2017-02-08 Drummond Fielding , Eliot Quataert , Michael McCourt , Todd A. Thompson

The circumgalactic medium (CGM) of star-forming dwarf galaxies plays a key role in regulating the galactic baryonic cycle. We investigate how susceptible the CGM of dwarf satellite galaxies is to ram pressure stripping (RPS) in Milky…

Astrophysics of Galaxies · Physics 2024-10-10 Jingyao Zhu , Stephanie Tonnesen , Greg L. Bryan , Mary E. Putman

We consider a model of the circumgalactic medium (CGM) in which feedback maintains a constant ratio of cooling time to freefall time throughout the halo, so that the entire CGM is marginally unstable to multiphase condensation. This…

Astrophysics of Galaxies · Physics 2021-09-15 Manami Roy , Biman B. Nath , G. M. Voit

Despite its crucial role in galaxy evolution, the complex circumgalactic medium (CGM) remains underexplored. Although it is known to be multi-phase, the importance of the molecular gas phase to the total CGM mass budget is, to date,…

The hot component of the circum-galactic medium (CGM) around star forming galaxies is detected as diffuse X-ray emission. The X-ray spectra from the CGM depend on the temperature and metallicity of the emitting plasma, providing important…

Astrophysics of Galaxies · Physics 2021-12-08 Aditi Vijayan , Miao Li

The cicumgalactic medium (CGM) is a reservoir of metals and star-forming fuel. Most baryons in the universe are in the circumgalactic medium (CGM) or intergalactic medium (IGM). The baryon cycle -- how mass and metals reach the CGM from the…

Astrophysics of Galaxies · Physics 2025-01-28 Jacob P. Morgan , Jeremy Bailin

The circumgalactic medium (CGM) around galaxies is believed to record various forms of galaxy feedback and contain a significant portion of the "missing baryons" of individual dark matter halos. However, clear observational evidence for the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Y. Yao , Q. D. Wang , S. V. Penton , T. M. Tripp , J. M. Shull , J. T. Stocke

The modeling of galaxy formation and reionization, two central issues of modern cosmology, relies on the accurate follow-up of the intergalactic medium (IGM). Unfortunately, owing to the complex nature of this medium, the differential…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-23 Alberto Manrique , Eduard Salvador-Solé

Galaxy halos appear to be missing a large fraction of their baryons, most probably hiding in the circumgalactic medium (CGM), a diffuse component within the dark matter halo that extends far from the inner regions of the galaxies. A…

The circumgalactic medium (CGM) is the location where the interplay between large-scale outflows and accretion onto galaxies occurs. Metals in different ionization states flowing between the circumgalactic and intergalactic mediums are…

Galaxies are surrounded by massive gas reservoirs (i.e. the circumgalactic medium; CGM) which play a key role in their evolution. The properties of the CGM, which are dependent on a variety of internal and environmental factors, are often…

The connection between halo gas acquisition through the circumgalactic medium (CGM) and galaxy star formation has long been studied. In this series of two papers, we put this interplay within the context of the galaxy environment on large…

Astrophysics of Galaxies · Physics 2021-12-09 Sen Wang , Dandan Xu , Shengdong Lu , Zheng Cai , Maosheng Xiang , Shude Mao , Volker Springel , Lars Hernquist

We study the effect of magnetic fields on a simulated galaxy and its surrounding gaseous halo, or circumgalactic medium (CGM), within cosmological 'zoom-in' simulations of a Milky Way-mass galaxy as part of the 'Simulating the Universe with…