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Active galactic nuclei: what's in a name?
Active galactic nuclei (AGN) are energetic astrophysical sources powered by accretion onto
supermassive black holes in galaxies, and present unique observational signatures that …
supermassive black holes in galaxies, and present unique observational signatures that …
Obscured active galactic nuclei
RC Hickox, DM Alexander - Annual Review of Astronomy and …, 2018 - annualreviews.org
Active galactic nuclei (AGN) are powered by the accretion of material onto a supermassive
black hole (SMBH) and are among the most luminous objects in the Universe. However, the …
black hole (SMBH) and are among the most luminous objects in the Universe. However, the …
The man behind the curtain: X-rays drive the UV through NIR variability in the 2013 active galactic nucleus outburst in NGC 2617
BJ Shappee, JL Prieto, D Grupe… - The Astrophysical …, 2014 - iopscience.iop.org
ABSTRACT After the All-Sky Automated Survey for SuperNovae discovered a significant
brightening of the inner region of NGC 2617, we began a∼ 70 day photometric and …
brightening of the inner region of NGC 2617, we began a∼ 70 day photometric and …
Revisiting the Fanaroff–Riley dichotomy and radio-galaxy morphology with the LOFAR Two-Metre Sky Survey (LoTSS)
The relative positions of the high and low surface brightness regions of radio-loud active
galaxies in the 3CR sample were found by Fanaroff and Riley to be correlated with their …
galaxies in the 3CR sample were found by Fanaroff and Riley to be correlated with their …
Mid-infrared selection of active galactic nuclei with the wide-field infrared survey explorer. i. characterizing wise-selected active galactic nuclei in cosmos
ABSTRACT The Wide-field Infrared Survey Explorer (WISE) is an extremely capable and
efficient black hole finder. We present a simple mid-infrared color criterion, W1− W2⩾ 0.8 …
efficient black hole finder. We present a simple mid-infrared color criterion, W1− W2⩾ 0.8 …
Identifying luminous active galactic nuclei in deep surveys: revised IRAC selection criteria
Spitzer/IRAC selection is a powerful tool for identifying luminous active galactic nuclei
(AGNs). For deep IRAC data, however, the AGN selection wedges currently in use are …
(AGNs). For deep IRAC data, however, the AGN selection wedges currently in use are …
The LOFAR Two-Metre Sky Survey-VI. Optical identifications for the second data release
MJ Hardcastle, MA Horton, WL Williams… - Astronomy & …, 2023 - aanda.org
The second data release of the LOFAR Two-Metre Sky Survey (LoTSS) covers 27% of the
northern sky, with a total area of~ 5700 deg 1. The high angular resolution of LOFAR with …
northern sky, with a total area of~ 5700 deg 1. The high angular resolution of LOFAR with …
The wise agn catalog
We present two large catalogs of active galactic nucleus (AGN) candidates identified across
30,093 deg 2 of extragalactic sky from the Wide-field Infrared Survey Explorer's AllWISE …
30,093 deg 2 of extragalactic sky from the Wide-field Infrared Survey Explorer's AllWISE …
Mid-infrared Selection of active galactic nuclei with the wide-field infrared survey explorer. II. Properties of WISE-selected active galactic nuclei in the NDWFS Boötes …
Stern et al. presented a study of Wide-field Infrared Survey Explorer (WISE) selection of
active galactic nuclei (AGNs) in the 2 deg 2 COSMOS field, finding that a simple criterion W1 …
active galactic nuclei (AGNs) in the 2 deg 2 COSMOS field, finding that a simple criterion W1 …
Cosmic X-ray surveys of distant active galaxies: The demographics, physics, and ecology of growing supermassive black holes
WN Brandt, DM Alexander - The Astronomy and Astrophysics Review, 2015 - Springer
We review results from cosmic X-ray surveys of active galactic nuclei (AGNs) over the past
≈ 15≈ 15 years that have dramatically improved our understanding of growing …
≈ 15≈ 15 years that have dramatically improved our understanding of growing …