Results 1 to 10 of about 1,003,684 (284)
Extremely Red Radio Galaxies [PDF]
, 2001 At least half the radio galaxies at z>1 in the 7C Redshift Survey have extremely red colours (R-K>5), consistent with stellar populations which formed at high redshift (z>5). We discuss the implications of this for the evolution of massive galaxies in general and for the fraction of near-IR-selected EROs which host AGN, a result which is now ...
Willott, C, Rawlings, S, Blundell, K
openaire +3 more sources
Combining LOFAR and Apertif Data for Understanding the Life Cycle of Radio Galaxies
Galaxies, 2021 Active galactic nuclei (AGN) at the centres of galaxies can cycle between periods of activity and of quiescence. Characterising the duty-cycle of AGN is crucial for understanding their impact on the evolution of the host galaxy.
Raffaella Morganti +12 more
doaj +1 more source
Alignments of radio galaxies in deep radio imaging of ELAIS N1 [PDF]
, 2016 We present a study of the distribution of radio jet position angles of radio galaxies over an area of 1 square degree in the ELAIS N1 field. ELAIS N1 was observed with the Giant Metrewave Radio Telescope at 612 MHz to an rms noise level of 10 $\mu$Jy and
A. Taylor, P. Jagannathan
semanticscholar +1 more source
Galaxies, 2021 Radio galaxies are known to undergo phases of activity, where the stage after the jets have switched off is referred to as the remnant phase. This state can be followed by a restarted phase when the activity reignites. Remnant and restarted radio sources
Nika Jurlin +3 more
doaj +1 more source
A case for radio galaxies as the sources of IceCube's astrophysical neutrino flux [PDF]
, 2016 We present an argument that radio galaxies (active galaxies with mis-aligned jets) are likely to be the primary sources of the high-energy astrophysical neutrinos observed by IceCube.
D. Hooper
semanticscholar +1 more source
The VLA-COSMOS 3 GHz Large Project: The infrared- radio correlation of star-forming galaxies and AGN to z ≲ 6 [PDF]
, 2017 We examine the behaviour of the infrared-radio correlation (IRRC) over the range 0
J. Delhaize +25 more
semanticscholar +1 more source
High-Redshift Radio Galaxies [PDF]
Highlights of Astronomy, 1995 Radio galaxies are unique cosmological probes. As with radio-loud quasars, the presence of luminous radio continuum and optical line emission enable radio galaxies to be observed and recognized at large distances, up to z = 4.2. However, unlike the situation for most quasars, their optical emission can be spatially resolved from the ground and studied ...
openaire +1 more source
LeMMINGs - I. The eMERLIN legacy survey of nearby galaxies. 1.5-GHz parsec-scale radio structures and cores [PDF]
, 2018 We present the first data release of high-resolution (≤0.2 arcsec) 1.5-GHz radio images of 103 nearby galaxies from the Palomar sample, observed with the eMERLIN array, as part of the LeMMINGs survey.
R. D. Baldi +35 more
semanticscholar +1 more source
The LOFAR window on star-forming galaxies and AGNs - curved radio SEDs and IR-radio correlation at 0 [PDF]
, 2017 We present a study of the low-frequency radio properties of star-forming (SF) galaxies and active galactic nuclei (AGNs) up to redshift z = 2.5. The new spectral window probed by the Low Frequency Array (LOFAR) allows us to reconstruct the radio ...
G. Rivera +26 more
semanticscholar +1 more source
Galaxy Evolution in the Radio Band: The Role of Star-forming Galaxies and Active Galactic Nuclei [PDF]
, 2017 We investigate the astrophysics of radio-emitting star-forming galaxies and active galactic nuclei (AGNs) and elucidate their statistical properties in the radio band, including luminosity functions, redshift distributions, and number counts at sub-mJy ...
C. Mancuso +8 more
semanticscholar +1 more source