Results 31 to 40 of about 1,073,559 (305)
FR0CAT: a FIRST catalog of FR0 radio galaxies [PDF]
, 2017 With the aim of exploring the properties of the class of FR0 radio galaxies, we selected a sample of 108 compact radio sources, called FR0CAT, by combining observations from the NVSS, FIRST, and SDSS surveys. The catalog includes sources with z$\leq 0.05$
R. D. Baldi +6 more
semanticscholar +1 more source
The fundamental plane of radio galaxies [PDF]
Astronomy & Astrophysics, 2001 We collected photometrical and dynamical data for 73 low red-shift (z<0.2) Radio Galaxies (LzRG) in order to study their Fundamental Plane (FP). For 22 sources we also present new velocity dispersion data, that complement the photometric data given in our previous study of LzRG (Govoni et al. 2000a). It is found that the FP of LzRG is similar to the
Renato Falomo +5 more
openaire +7 more sources
Dynamics of Powerful Radio Galaxies
Galaxies, 2023 Analytical models describing the dynamics of lobed radio sources are essential for interpretation of the tens of millions of radio sources that will be observed by the Square Kilometre Array and pathfinder instruments. We propose that historical models can be grouped into two classes in which the forward expansion of the radio source is driven by ...
Ross Turner, Stanislav Shabala
openaire +3 more sources
The nuclear properties and extended morphologies of powerful radio galaxies: the roles of host galaxy and environment [PDF]
, 2017 Powerful radio galaxies exist as either compact or extended sources, with the extended sources traditionally classified by their radio morphologies as Fanaroff--Riley (FR) type I and II sources. FRI/II and compact radio galaxies have also been classified
H. Miraghaei, P. Best
semanticscholar +1 more source
Radio Galaxy Zoo: new giant radio galaxies in the RGZ DR1 catalogue [PDF]
Monthly 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.
Lawrence Rudnick +10 more
openaire +3 more sources
Viewing Classical Radio Galaxies with the Upgraded GMRT and MeerKAT—A Progress Report
Galaxies, 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
FRICAT: A FIRST catalog of FRI radio galaxies [PDF]
, 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
Astronomy & Astrophysics, 2023 Context.The local radio-loud AGN population is dominated by compact sources named FR0s. These sources show features, for example the host type, the mass of the supermassive black hole (SMBH), and the multi-band nuclear characteristics, that are similar to those of FRI radio galaxies.
G. Giovannini +4 more
openaire +4 more sources
A search for candidate radio supernova remnants in the nearby irregular starburst galaxies NGC 4214 and NGC 4395 [PDF]
Serbian 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
Discovery of giant radio galaxies from NVSS: radio and infrared properties [PDF]
, 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