Results 71 to 80 of about 47,824 (185)

Radio continuum emission from a tidal dwarf galaxy

open access: yesMonthly Notices of the Royal Astronomical Society
ABSTRACT Tidal dwarf galaxies (TDGs) form in the debris of galaxy mergers, making them ideal testbeds for investigating star formation in an extreme environment. We present radio continuum EVLA observations spanning 1–2 GHz of the interacting system Arp 94, which contains the TDG J1023+1952.
Blanca M Moncada-Cuadri   +3 more
openaire   +3 more sources

Faint radio samples: the key to understanding radio galaxies [PDF]

open access: yesarXiv, 1998
The large number of differences between high- and low-redshift radio galaxies have almost all been discovered by looking at the bright 3C sample of radio sources. This has the disadvantage that the strong correlation between radio luminosity and redshift within a single sample makes it impossible to be determine whether these differences are the result
arxiv  

The AGN component in deep radio fields: Results from the First Look Survey [PDF]

open access: yesarXiv, 2009
We are currently exploiting the deep radio/optical/IR information available for the extra-galactic component of the Spitzer First Look Survey (FLS) to investigate the physical properties of faint radio-selected AGNs, with the aim of studying the AGN component of sub-mJy radio fields.
arxiv  

Radio-continuum emission from quasar host galaxies

open access: yesThe Astronomical Journal, 1987
Seven low-redshift quasars that are likely to be in spiral galaxies have been observed in a search for radio-continuum emission from the host galaxies of quasars. The properties of the individual quasars are listed, and 1.49 GHz contour maps of the seven quasar fields are presented.
J. J. Condon   +2 more
openaire   +2 more sources

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  

Peculiar Radio Continuum Features in Edge-On Spiral Galaxies [PDF]

open access: bronze, 1983
E. Hummel   +2 more
openalex   +1 more source

Radio U-Net: a convolutional neural network to detect diffuse radio sources in galaxy clusters and beyond [PDF]

open access: yesarXiv
The forthcoming generation of radio telescope arrays promises significant advancements in sensitivity and resolution, enabling the identification and characterization of many new faint and diffuse radio sources. Conventional manual cataloging methodologies are anticipated to be insufficient to exploit the capabilities of new radio surveys.
arxiv  

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