Active galactic nuclei (AGN) are energetic astrophysical sources powered by accretion onto
supermassive black holes in galaxies, and present unique observational signatures that …

Environment is one of the primary drivers of galaxy evolution; via multiple mechanisms, it
can control the critical process of transforming galaxies from star forming to quiescent …

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 …

We have carried out a survey of the north and south ecliptic poles, EP-N and EP-S,
respectively, with the Spitzer Space Telescope and the Wide-field Infrared Survey Explorer …

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 …

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 …

We present an analysis of the mid-infrared (MIR) and optical properties of type 1 (broad-line)
quasars detected by the Spitzer Space Telescope. The MIR color-redshift relation is …

We present the first wide area (19 deg2), deep (≈ 120–150 μJy beam− 1), high-resolution
(5.6× 7.4 arcsec) LOFAR High Band Antenna image of the Boötes field made at 130–169 …

We present the source associations, cross-identifications, and multi-wavelength properties
of the faint radio source population detected in the deep tier of the LOFAR Two Metre Sky …

Mid-infrared photometry provides a robust technique for identifying active galaxies. While
the ultraviolet to mid-infrared (λ≲ 5 μm) continuum of stellar populations is dominated by the …