Results 41 to 50 of about 1,003,684 (284)

Extragalactic Magnetism with SOFIA (SALSA Legacy Program). V. First Results on the Magnetic Field Orientation of Galaxies

open access: yesThe Astrophysical Journal, 2023
We present the analysis of the magnetic field ( B -field) structure of galaxies measured with far-infrared (FIR) and radio (3 and 6 cm) polarimetric observations.
Alejandro S. Borlaff   +15 more
doaj   +1 more source

Viewing Classical Radio Galaxies with the Upgraded GMRT and MeerKAT—A Progress Report

open access: yesGalaxies, 2021
We present a progress report of a study of FR I and FR II radio galaxies. Several new morphological features in the radio emission are now revealed using the high (μJy) sensitivity reached in the range 550–1712 MHz, more than a factor of three, at the ...
Dharam V. Lal   +12 more
doaj   +1 more source

Discovery of giant radio galaxies from NVSS: radio and infrared properties [PDF]

open access: yes, 2017
Giant radio galaxies (GRGs) are one of the largest astrophysical sources in the Universe with an overall projected linear size of ∼0.7 Mpc or more. The last six decades of radio astronomy research has led to the detection of thousands of radio galaxies ...
P. Dabhade   +5 more
semanticscholar   +1 more source

A search for candidate radio supernova remnants in the nearby irregular starburst galaxies NGC 4214 and NGC 4395 [PDF]

open access: yesSerbian Astronomical Journal, 2005
We present the results of a search for new candidate radio su­pernova remnants (SNRs) in the nearby starburst irregular galaxies NGC 4214 and NGC 4395 using archived radio observations made with the Very Large Array (VLA) at the wavelengths of 3.5 cm, 6 ...
Vukotić B.   +3 more
doaj   +1 more source

Radio Galaxy Zoo: new giant radio galaxies in the RGZ DR1 catalogue [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
ABSTRACT In this paper, we present the identification of five previously unknown giant radio galaxies (GRGs) using Data Release 1 of the Radio Galaxy Zoo citizen science project and a selection method appropriate to the training and validation of deep learning algorithms for new radio surveys.
H Tang   +7 more
openaire   +3 more sources

Galaxy And Mass Assembly (GAMA): the environments of high- and low- excitation radio galaxies [PDF]

open access: yes, 2017
We study the environments of low- and high- excitation radio galaxies (LERGs and HERGs respectively) in the redshift range $0.01 < z < 0.4$, using a sample of 399 radio galaxies and environmental measurements from the Galaxy And Mass Assembly (GAMA ...
J. Ching   +35 more
semanticscholar   +1 more source

GAMA/WiggleZ: the 1.4 GHz radio luminosity functions of high- and low-excitation radio galaxies and their redshift evolution to z = 0.75 [PDF]

open access: yes, 2016
© 2016 The Authors. Published by Oxford University Press on behalf of The Royal Astronomical Society. We present radio active galactic nuclei (AGN) luminosity functions over the redshift range 0.005 < z < 0.75.
M. Pracy   +19 more
semanticscholar   +1 more source

FRICAT: A FIRST catalog of FRI radio galaxies [PDF]

open access: yes, 2016
We built a catalog of 219 FRI radio galaxies (FRIs), called FRICAT, selected from a published sample and obtained by combining observations from the NVSS, FIRST, and SDSS surveys.
A. Capetti, F. Massaro, R. D. Baldi
semanticscholar   +1 more source

Radio Galaxy Spectra

open access: yes, 2001
4 pages, 3 figures, submitted to 'Particles & Fields in Radio Galaxies' eds Laing & Blundell, ASP conference ...
Jackson, C, Wall, J
openaire   +3 more sources

Radio galaxies dominate the high-energy diffuse gamma-ray background [PDF]

open access: yes, 2016
It has been suggested that unresolved radio galaxies and radio quasars (sometimes referred to as misaligned active galactic nuclei) could be responsible for a significant fraction of the observed diffuse gamma-ray background.
D. Hooper, T. Linden, A. López
semanticscholar   +1 more source

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