302 citations · 711 across the 29 of their papers we have counts for
20 papers · 1 filter
Cooling Flows as a Reference Solution for the Hot Circumgalactic Medium
Imran Sultan, Claude-André Faucher-Giguère, Jonathan Stern +3
The circumgalactic medium (CGM) in halos is dominated by a hot phase ( K). While many models exist for the hot gas structur…
Ne VIII in the warm-hot circumgalactic medium of FIRE simulations and in observations
Nastasha A. Wijers, Claude-André Faucher-Giguère, Jonathan Stern +2
The properties of warm-hot gas around galaxies can be studied with absorption lines from highly ionized metals. We predict Ne VIII column densities from cosmological z…
Effects of multi-channel AGN feedback in FIRE cosmological simulations of massive galaxies
Lindsey Byrne, Claude-André Faucher-Giguère, Sarah Wellons +6
Feedback from supermassive black holes is believed to be a critical driver of the observed color bimodality of galaxies above the Milky Way mass scale. AGN feedback has been modele…
Resonant scattering of the OVII X-ray emission line in the circumgalactic medium of TNG50 galaxies
Dylan Nelson, Chris Byrohl, Anna Ogorzalek +15
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 p…
The Halo21 Absorption Modeling Challenge: Lessons From "Observing" Synthetic Circumgalactic Absorption Spectra
Zachary Hafen, Sameer, Cameron Hummels +7
In the Halo21 absorption modeling challenge we generated synthetic absorption spectra of the circumgalactic medium (CGM), and attempted to estimate the metallicity, temperature, an…
A comprehensive study on the relation between the metal enrichment of ionised and atomic gas in star-forming galaxies
M. Arabsalmani, L. Garratt-Smithson, N. Wijers +7
We study the relation between the metallicities of ionised and atomic gas in star-forming galaxies at z=0-3 using the EAGLE cosmological, hydrodynamical simulations. This is done b…
Improving blazar redshift constraints with the edge of the Ly forest: 1ES 1553+113 and implications for observations of the WHIM
J. Dorigo Jones, S. D. Johnson, Sowgat Muzahid +6
Blazars are some of the brightest UV and X-ray sources in the sky and are valuable probes of the elusive warm-hot intergalactic medium (WHIM; K). However, man…
Fast radio bursts as probes of feedback from active galactic nuclei
Adam J. Batten, Alan R. Duffy, Chris Flynn +3
Fast Radio Bursts (FRBs) are a promising tool for studying the low-density universe as their dispersion measures (DM) are extremely sensitive probes of electron column density. Act…
Discovery of a multiphase OVI and OVII absorber in the circumgalactic/intergalactic transition region
J. Ahoranta, A. Finoguenov, M. Bonamente +4
The observational constraints on the baryon content of the WHIM rely almost entirely on FUV measurements. However, cosmological, hydrodynamical simulations predict strong correlati…
The warm-hot circumgalactic medium around EAGLE-simulation galaxies and its detection prospects with X-ray line emission
Nastasha A. Wijers, Joop Schaye
We estimate the detectability of X-ray metal-line emission from the circumgalactic medium (CGM) of galaxies over a large halo mass range (-$…
The warm-hot circumgalactic medium around EAGLE-simulation galaxies and its detection prospects with X-ray and UV line absorption
Nastasha A. Wijers, Joop Schaye, Benjamin D. Oppenheimer
We use the EAGLE (Evolution and Assembly of GaLaxies and their Environments) cosmological simulation to study the distribution of baryons, and far-ultraviolet (O VI), extreme-ultra…
EAGLE and Illustris-TNG predictions for resolved eROSITA X-ray observations of the circumgalactic medium around normal galaxies
Benjamin D. Oppenheimer, Akos Bogdan, Robert A. Crain +8
We simulate stacked observations of nearby hot X-ray coronae associated with galaxies in the EAGLE and Illustris-TNG hydrodynamic simulations. A forward modeling pipeline is develo…
Hot WHIM counterparts of FUV OVI absorbers: Evidence in the line-of-sight towards quasar 3C 273
Jussi Ahoranta, Jukka Nevalainen, Nastasha Wijers +7
We explore the high spectral resolution X-ray data towards the quasar 3C273 to search for signals of hot ( K) X-ray-absorbing gas co-located with two established inte…
The Physical Origins of the Identified and Still Missing Components of the Warm-Hot Intergalactic Medium: Insights from Deep Surveys in the Field of Blazar 1ES1553+113
Sean D. Johnson, John S. Mulchaey, Hsiao-Wen Chen +11
The relationship between galaxies and the state/chemical enrichment of the warm-hot intergalactic medium (WHIM) expected to dominate the baryon budget at low-z provides sensitive c…
On the detectability of visible-wavelength line emission from the local circumgalactic and intergalactic medium
Deborah Lokhorst, Roberto Abraham, Pieter van Dokkum +2
We describe a new approach to studying the intergalactic and circumgalactic medium in the local Universe: direct detection through narrow-band imaging of ultra-low surface brightne…
Feedback from supermassive black holes transforms centrals into passive galaxies by ejecting circumgalactic gas
Benjamin D. Oppenheimer, Jonathan J. Davies, Robert A. Crain +6
Davies et al. (2019) established that for L^* galaxies the fraction of baryons in the circumgalactic medium (CGM) is inversely correlated with the mass of their central supermassiv…
The abundance and physical properties of O VII and O VIII X-ray absorption systems in the EAGLE simulations
Nastasha A. Wijers, Joop Schaye, Benjamin D. Oppenheimer +2
We use the EAGLE cosmological, hydrodynamical simulations to predict the column density and equivalent width distributions of intergalactic O VII ( eV) and O VIII ( e…
A Survey of Hot Gas in the Universe
Joel N. Bregman, Edmund Hodges-Kluck, Benjamin D. Oppenheimer +8
A large fraction of the baryons and most of the metals in the Universe are unaccounted for. They likely lie in extended galaxy halos, galaxy groups, and the cosmic web, and measuri…
Imprint of Drivers of Galaxy Formation in the Circumgalactic Medium
Benjamin D. Oppenheimer, Juna Kollmeier, Andrey Kravtsov +16
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 appearanc…
Observations of the MIssing Baryons in the warm-hot intergalactic medium
F. Nicastro, J. Kaastra, Y. Krongold +18
It has been known for decades that the observed number of baryons in the local universe falls about 30-40% short of the total number of baryons predicted by Big-Bang Nucleosynthesi…