Results 21 to 30 of about 31,186 (206)

The Origin of Intergalactic Light in Compact Groups of Galaxies

open access: yesUniverse, 2021
We investigate the origin of intergalactic light (IGL) in close groups of galaxies. IGL is hypothesized to be the byproduct of interaction and merger within compact groups.
Mark J. Henriksen
doaj   +1 more source

Constraint on intergalactic dust from thermal history of intergalactic medium [PDF]

open access: yes, 2002
This Letter investigates the amount of dust in the intergalactic medium (IGM). The dust photoelectric heating can be the most efficient heating mechanism in the IGM where the density is very small and there are a lot of hard ultraviolet photons ...
Inoue, Akio K., Kamaya, Hideyuki
core   +2 more sources

When Does the Intergalactic Medium Become Enriched? [PDF]

open access: yes, 2006
We use cosmological hydrodynamic simulations including galactic feedback based on observations of local starbursts to find a self-consistent evolutionary model capable of fitting the observations of the intergalactic metallicity history as traced by C IV
Davé, Romeel   +2 more
core   +2 more sources

Galaxies and the intergalactic medium: evolutionary interrelations

open access: yesOdessa Astronomical Publications, 2017
During their life galaxies exchange in matter and energy with the intergalactic medium (IGM). This complex process is a most important factor in galactic evolution as well in evolution of the IGM.
B. M. Shustov
doaj   +1 more source

A Direct Upper Limit on the Density of Cosmological Dust from the Absence of an X-ray Scattering Halo around the z=4.3 QSO 1508+5714 [PDF]

open access: yes, 2006
We report on the results of a search for an intergalactic X-ray dust scattering halo in a deep observation of the bright, high-redshift quasar QSO 1508+5714 with the Chandra X-ray Observatory. We do not detect such a halo.
Andreea Petric   +5 more
core   +1 more source

Cosmic neutrino flux and spin flavor oscillations in intergalactic medium

open access: yesPhysics Letters B, 2023
The ultra high energy (UHE) cosmic neutrinos are expected to play a pivotal role in the disquisition of physics beyond the standard model of particle physics as well as serve as an ideal cosmic messengers.
Ashutosh Kumar Alok   +2 more
doaj   +1 more source

A search for extended radio emission from selected compact galaxy groups [PDF]

open access: yes, 2017
Context. Studies on compact galaxy groups have led to the conclusion that a plenitude of phenomena take place in between galaxies that form them. However, radio data on these objects are extremely scarce and not much is known concerning the existence and
Beck, R.   +4 more
core   +2 more sources

A hot intergalactic medium? [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1986
On a de nouveau examine l'hypothese d'un milieu intergalactique chaud produisant le fond RX 5-200 keV, en tenant compte des corrections relativistes pour l'emissivite du gaz, la thermodynamique et la diffusion ...
P. W. Guilbert, A. C. Fabian
openaire   +1 more source

How do atomic code uncertainties affect abundance measurements in the intracluster medium?

open access: yesAstronomische Nachrichten, Volume 341, Issue 2, Page 203-209, February 2020., 2020
Abstract Accurate chemical abundance measurements of X‐ray‐emitting atmospheres pervading massive galaxies, galaxy groups, and clusters provide essential information on the star formation and chemical enrichment histories of these large‐scale structures.
François Mernier   +8 more
wiley   +1 more source

Halo White Dwarfs and the Hot Intergalactic Medium [PDF]

open access: yes, 1996
We present a schematic model for the formation of baryonic galactic halos and hot gas in the Local Group and the intergalactic medium. We follow the dynamics, chemical evolution, heat flow and gas flows of a hierarchy of scales, including: protogalactic ...
Arnauld M.   +13 more
core   +3 more sources

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