Articles with "circumgalactic medium" as a keyword



MUSEQuBES: Characterizing the circumgalactic medium of redshift ≈3.3 Lyα emitters

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Published in 2021 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stab2933

Abstract: We present the first characterization of the circumgalactic medium of Lyα emitters (LAEs), using a sample of 96 z ≈ 3.3 LAEs detected with the VLT/MUSE in fields centered on 8 bright background quasars. The… read more here.

Keywords: absorption; medium; circumgalactic medium; musequbes characterizing ... See more keywords

Absorption-based Circumgalactic Medium Line Emission Estimates

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Published in 2022 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stac2390

Abstract: Motivated by integral field units (IFUs) on large ground telescopes and proposals for ultraviolet-sensitive space telescopes to probe circumgalactic medium (CGM) emission, we survey the most promising emission lines and how such observations can inform… read more here.

Keywords: circumgalactic medium; gas; emission estimates; emission ... See more keywords

Resonant scattering of the OVII X-ray emission line in the circumgalactic medium of TNG50 galaxies

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Published in 2023 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stad1195

Abstract: We study the impact of resonantly scattered X-ray line emission on the observability of the hot circumgalactic medium (CGM) of galaxies. We apply a Monte Carlo radiative transfer post-processing analysis to the high-resolution TNG50 cosmological… read more here.

Keywords: cgm; circumgalactic medium; resonant scattering; ray emission ... See more keywords

ARCHITECTS I: Impact of subgrid physics on the simulated properties of the circumgalactic medium

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Published in 2025 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staf1372

Abstract: Galaxy evolution is shaped by star formation and stellar feedback at scales unresolved by current high-resolution cosmological simulations. Precise subgrid models are thus necessary, and different approaches have been developed. However, they are degenerate and… read more here.

Keywords: mechanical feedback; circumgalactic medium; feedback; model ... See more keywords

Cooling Flows as a Reference Solution for the Hot Circumgalactic Medium

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Published in 2024 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staf786

Abstract: The circumgalactic medium (CGM) in ≳ 1012 M⊙ halos is dominated by a hot phase (T ≳ 106 K). While many models exist for the hot gas structure, there is as yet no consensus. We compare… read more here.

Keywords: circumgalactic medium; cooling flows; cgm; halos ... See more keywords

Dark matter annihilation in the circumgalactic medium at high redshifts

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Published in 2017 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stx2968

Abstract: Annihilating dark matter (DM) models offer promising avenues for future DM detection, in particular via modification of astrophysical signals. However when modelling such potential signals at high redshift the emergence of both dark matter and… read more here.

Keywords: annihilation; energy; matter; dark matter ... See more keywords
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Absorption systems at z∼ 2 as a probe of the circumgalactic medium: a probabilistic approach

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Published in 2018 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/sty1283

Abstract: We characterize the properties of the intergalactic medium (IGM) around a sample of galaxies extracted from state-of-the-art hydrodynamical simulations of structure formation in a cosmological volume of 25 Mpc comoving at $z\sim 2$. The simulations… read more here.

Keywords: absorption systems; medium; circumgalactic medium; probe circumgalactic ... See more keywords

The origins of the circumgalactic medium in the FIRE simulations

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Published in 2019 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stz1773

Abstract: We use a particle tracking analysis to study the origins of the circumgalactic medium (CGM), separating it into (1) accretion from the intergalactic medium (IGM), (2) wind from the central galaxy, and (3) gas ejected… read more here.

Keywords: medium; circumgalactic medium; origins circumgalactic; gas ... See more keywords

Cosmological simulations of the circumgalactic medium with 1 kpc resolution: enhanced H i column densities

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Published in 2018 at "Monthly Notices of the Royal Astronomical Society: Letters"

DOI: 10.1093/mnrasl/sly190

Abstract: 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… read more here.

Keywords: resolution; column; circumgalactic medium; cosmological simulations ... See more keywords

Mapping galactic winds and small-scale structure in the circumgalactic medium with Habitable Worlds Observatory

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Published in 2025 at "Journal of Astronomical Telescopes, Instruments, and Systems"

DOI: 10.1117/1.jatis.11.4.042213

Abstract: Abstract. We present a science case for the Habitable Worlds Observatory (HWO) to map the circumgalactic medium (CGM) in emission by targeting ultraviolet emission lines, which trace the 104 to 106  K gas engaged in the… read more here.

Keywords: spectroscopy; worlds observatory; habitable worlds; circumgalactic medium ... See more keywords

A MUSE source-blind survey for emission from the circumgalactic medium

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Published in 2024 at "Science Advances"

DOI: 10.1126/sciadv.adp8629

Abstract: The recent detection of optical emission lines from the circumgalactic medium (CGM) in combined, large samples of low-redshift, normal galaxy spectra hints at the potential to map the cool (∼104 kelvin) CGM in individual, representative… read more here.

Keywords: circumgalactic medium; source blind; galaxy; emission ... See more keywords