VLA Observations of Ultraluminous IRAS Galaxies: Active Nuclei or Starbursts? [PDF]
, 1995 We employed the Very Large Array (VLA) of the National Radio Astronomy Observatory in C configuration to map 39 ultraluminous IRAS galaxies at 6~cm and 20~cm, at resolutions of ~ 4" and 15", respectively, and 24 sources at 6~cm with in the A ...
T. Crawford +3 more
semanticscholar +1 more source
The host galaxies and classification of active galactic nuclei [PDF]
, 2006 We present an analysis of the host properties of 85224 emission-line galaxies selected from the Sloan Digital Sky Survey. We show that Seyferts and LINERs form clearly separated branches on the standard optical diagnostic diagrams.
L. Kewley +5 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
The star formation rates of active galactic nuclei host galaxies [PDF]
, 2016 Using artificial neural network (ANN) predictions of total infra-red luminosities (LIR), we compare the host galaxy star formation rates (SFRs) of ~21,000 optically selected active galactic nuclei (AGN), 466 low excitation radio galaxies (LERGs) and 721 ...
S. Ellison +3 more
semanticscholar +1 more source
THE MAIN SEQUENCES OF STAR-FORMING GALAXIES AND ACTIVE GALACTIC NUCLEI AT HIGH REDSHIFT [PDF]
, 2016 We provide a novel, unifying physical interpretation on the origin, average shape, scatter, and cosmic evolution for the main sequences of star-forming galaxies and active galactic nuclei (AGNs) at high redshift .
C. Mancuso +10 more
semanticscholar +1 more source
Cosmic X-ray surveys of distant active galaxies [PDF]
, 2015 We review results from cosmic X-ray surveys of active galactic nuclei (AGNs) over the past $$\approx 15$$≈15 years that have dramatically improved our understanding of growing supermassive black holes in the distant universe.
W. Brandt, D. Alexander
semanticscholar +1 more source
Lambda = 3 mm line survey of nearby active galaxies [PDF]
, 2015 We used the IRAM 30m telescope to observe the frequency range [86-116]GHz towards the central regions of the starburst galaxies M83, M82, and NGC253, the AGNs M51, NGC1068, and NGC7469, and the ULIRGs Arp220 and Mrk231.
R. Aladro +10 more
semanticscholar +1 more source
Galaxy Zoo: the effect of bar-driven fuelling on the presence of an active galactic nucleus in disc galaxies [PDF]
, 2015 We study the influence of the presence of a strong bar in disc galaxies which host an active galactic nucleus (AGN). Using data from the Sloan Digital Sky Survey and morphological classificationsfromtheGalaxyZoo2project,wecreateavolume ...
Melanie A. Galloway +9 more
semanticscholar +1 more source
Determining Central Black Hole Masses in Distant Active Galaxies and Quasars. II. Improved Optical and UV Scaling Relationships [PDF]
, 2002 We present four improved empirical relationships useful for estimating the central black hole mass in nearby AGNs and distant luminous quasars alike using either optical or UV single-epoch spectroscopy.
M. Vestergaard, B. Peterson
semanticscholar +1 more source
A TWO-PARAMETER MODEL FOR THE INFRARED/SUBMILLIMETER/RADIO SPECTRAL ENERGY DISTRIBUTIONS OF GALAXIES AND ACTIVE GALACTIC NUCLEI [PDF]
, 2014 A two-parameter semi-empirical model is presented for the spectral energy distributions of galaxies with contributions to their infrared–submillimeter–radio emission from both star formation and accretion disk-powered activity.
D. Dale +5 more
semanticscholar +1 more source