The Sloan Digital Sky Survey Quasar Catalog: Twelfth data release [PDF]
, 2016 We present the Data Release 12 Quasar catalog (DR12Q) from the Baryon Oscillation Spectroscopic Survey (BOSS) of the Sloan Digital Sky Survey III. This catalog includes all SDSS-III/BOSS objects that were spectroscopically targeted as quasar candidates ...
I. Pâris +52 more
semanticscholar +1 more source
Changing-look Quasar Candidates: First Results from Follow-up Spectroscopy of Highly Optically Variable Quasars [PDF]
Astrophysical Journal, 2018 Active galactic nuclei (AGNs) that show strong rest-frame optical/UV variability in their blue continuum and broad line emission are classified as changing-look AGN, or at higher luminosities, changing-look quasars (CLQs).
C. MacLeod +17 more
semanticscholar +1 more source
Scientific ReportsSeagrasses are undergoing widespread loss due to anthropogenic pressure and climate change. Since 1960, the Mediterranean seascape lost 13–50% of the areal extent of its dominant and endemic seagrass-Posidonia oceanica, which regulates its ecosystem ...
Masuma Chowdhury +8 more
doaj +1 more source
The Luminosity Dependence of Quasar Clustering
, 2005 We investigate the luminosity dependence of quasar clustering, inspired by numerical simulations of galaxy mergers that incorporate black hole growth. These simulations have motivated a new interpretation of the quasar luminosity function.
Adam Lidz +8 more
core +1 more source
Compatibility of the large quasar groups with the concordance cosmological model [PDF]
, 2016 We study the compatibility of large quasar groups with the concordance cosmological model. Large quasar groups are very large spatial associations of quasars in the cosmic web, with sizes of 50–250 h−1 Mpc.
Campusano, Luis E. +5 more
core +2 more sources
Exploring Reionization-era Quasars. III. Discovery of 16 Quasars at 6.4 ≲ z ≲ 6.9 with DESI Legacy Imaging Surveys and the UKIRT Hemisphere Survey and Quasar Luminosity Function at z ∼ 6.7 [PDF]
Astrophysical Journal, 2018 This is the third paper in a series aimed at finding reionization-era quasars with the combination of DESI Legacy imaging Surveys (DELS), the Pan-STARRS1 (PS1) Survey, and near-infrared imaging surveys, such as the UKIRT Hemisphere Survey (UHS), as well ...
Feige Wang +24 more
semanticscholar +1 more source
Epstein‐Barr Virus Expressed Long Non‐Coding RNA (lncBARTs) Regulate EBV Latent Genome Replication
Advanced Science, EarlyView.EBV produces abundant level of lncBARTs, which are essential for maintaining viral genome replication in EBV‐associated cancers. LncBARTs interact with a complex comprising BRD4, CTCF and viral protein EBNA1 at EBV oriP region. This interaction tethers oriP to host chromosomes, facilitating EBV episome replication.
Jiayan Liu +12 more
wiley +1 more source
Large SDSS quasar groups and their statistical significance
, 2015 We use a volume-limited sample of quasars in the Sloan Digital Sky Survey (SDSS) DR7 quasar catalog to identify quasar groups and address their statistical significance.
Einasto, Maret +4 more
core +1 more source
Quasar-galaxy and AGN-galaxy cross-correlations [PDF]
, 1998 We compute quasar-galaxy and AGN-galaxy cross-correlation functions for samples taken from the \cite{VCV98} catalog of quasars and active galaxies, using tracer galaxies taken from the Edinburgh/Durham Southern Catalog.
Babul A. +9 more
core +3 more sources
A Mid-IR Selected Changing-look Quasar and Physical Scenarios for Abrupt AGN Fading [PDF]
Astrophysical Journal, 2018 We report a new changing-look quasar, WISE J105203.55+151929.5 at z = 0.303, found by identifying highly mid-IR-variable quasars in the Wide-field Infrared Survey Explorer (WISE)/Near-Earth Object WISE Reactivation (NEOWISE) data stream.
D. Stern +13 more
semanticscholar +1 more source