Results 151 to 160 of about 256,920 (281)

On the Relation Between Radio and Non-Radio Elliptical Galaxies [PDF]

open access: yesarXiv, 2000
Empirical evidence suggests that elliptical galaxies hosting a radio source may not be different from normal non-radio ellipticals. To test this possibility, we use Monte Carlo simulations to reproduce the distribution of radio galaxies in the radio-optical luminosity plane. The input parameters of the simulation are the optical luminosity function (LF)
arxiv  

The host galaxy/AGN connection. Brightness profiles of early-type galaxies hosting Seyfert nuclei

open access: yes, 2007
[ABRIDGED] We recently presented evidence of a connection between the brightness profiles of nearby early-type galaxies and the properties of the AGN they host.
A. Capetti   +69 more
core   +1 more source

Global Transport of Chlorine Species in the Martian Atmosphere and the Resulting Surface Distribution of Perchlorates

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 3, March 2025.
Abstract Recent observations by instruments aboard the ExoMars Trace Gas Orbiter (TGO) have revealed the seasonal presence of hydrogen chloride (HCl $\text{HCl}$) in the Martian atmosphere. This discovery may have important implications for Martian photochemistry as chlorine species are chemically active, and it may provide a link between the ...
K. Rajendran   +7 more
wiley   +1 more source

Massive galaxies with very young AGN

open access: yes, 2007
Gigahertz Peaked Spectrum (GPS) radio galaxies are generally thought to be the young counterparts of classical extended radio sources and live in massive ellipticals.
de Vries   +5 more
core   +2 more sources

To the problem of the secondary CMB anisotropy separation

open access: yesEPJ Web of Conferences, 2016
We study contribution to the secondary anisotropy maps of cosmic microwave background (CMB) radiation which difficult to account for faint sources. Two effects are investigated.
Verkhodanov Oleg   +3 more
doaj   +1 more source

The High Energy View of FR0 Radio Galaxies

open access: yesGalaxies, 2019
A new class of low-power compact radio sources with limited jet structures, named FR 0, is emerging from recent radio-optical surveys. This abundant population of radio galaxies, five times more numerous than FR Is in the local Universe (z < 0.05 ...
Ranieri Diego Baldi   +3 more
doaj   +1 more source

Radio Plasma as a Cosmological Probe [PDF]

open access: yesarXiv, 2001
Plasma containing relativistic particles appears in various forms in the inter galactic medium (IGM): As radio plasma released by active radio galaxies, as fossil radio plasma from former radio galaxies - so called `radio ghosts', as `cluster radio relics' in some clusters of galaxies, and as `cluster radio halos'.
arxiv  

VLA observations of a sample of galaxies with high far-infrared luminosities [PDF]

open access: yes, 1987
Preliminary results are presented from a radio survey of galaxies detected by the IRAS minisurvey. It was found that the main difference between galaxies selected in the far infrared and those selected in the optical is that the former have higher radio ...
Beichman, C. A.   +2 more
core   +1 more source

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