The final SDSS high-redshift quasar sample of 52 quasars at z> 5.7
L Jiang, ID McGreer, X Fan, MA Strauss… - The Astrophysical …, 2016 - iopscience.iop.org
We present the discovery of nine quasars at $ z\sim 6$ identified in the Sloan Digital Sky
Survey (SDSS) imaging data. This completes our survey of $ z\sim 6$ quasars in the SDSS …
Survey (SDSS) imaging data. This completes our survey of $ z\sim 6$ quasars in the SDSS …
Spectral properties of quasars from Sloan Digital Sky Survey data release 14: The catalog
S Rakshit, CS Stalin, J Kotilainen - The Astrophysical Journal …, 2020 - iopscience.iop.org
We present measurements of the spectral properties for a total of 526,265 quasars, out of
which 63% have a continuum signal-to-noise ratio> 3 pixel− 1, selected from the fourteenth …
which 63% have a continuum signal-to-noise ratio> 3 pixel− 1, selected from the fourteenth …
Undermassive Host Galaxies of Five z∼ 6 Luminous Quasars Detected with JWST
We measure host galaxy stellar masses for a sample of five luminous quasars at z∼ 5–7.
Using JWST/NIRCam medium-band images of nearby point-spread function reference stars …
Using JWST/NIRCam medium-band images of nearby point-spread function reference stars …
A mid-IR selected changing-look quasar and physical scenarios for abrupt AGN fading
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 …
identifying highly mid-IR-variable quasars in the Wide-field Infrared Survey Explorer …
A catalog of narrow line seyfert 1 galaxies from the sloan digital sky survey data release 12
We present a new catalog of narrow-line Seyfert 1 (NLSy1) galaxies from the Sloan Digital
Sky Survey Data Release 12 (SDSS DR12). This was obtained by a systematic analysis …
Sky Survey Data Release 12 (SDSS DR12). This was obtained by a systematic analysis …
A new physical interpretation of optical and infrared variability in quasars
NP Ross, KES Ford, M Graham… - Monthly Notices of …, 2018 - academic.oup.com
Changing-look quasars are a recently identified class of active galaxies in which the strong
UV continuum and/or broad optical hydrogen emission lines associated with unobscured …
UV continuum and/or broad optical hydrogen emission lines associated with unobscured …
BAT AGN Spectroscopic Survey. XI. The Covering Factor of Dust and Gas in Swift/BAT Active Galactic Nuclei
We quantify the luminosity contribution of active galactic nuclei (AGNs) to the 12 μm, mid-
infrared (MIR; 5–38 μm), and total IR (5–1000 μm) emission in the local AGNs detected in …
infrared (MIR; 5–38 μm), and total IR (5–1000 μm) emission in the local AGNs detected in …
Narrow-line Seyfert 1 galaxies in Sloan Digital Sky Survey: a new optical spectroscopic catalogue
VS Paliya, CS Stalin, A Domínguez… - Monthly Notices of the …, 2024 - academic.oup.com
ABSTRACT Narrow-line Seyfert 1 (NLSy1) galaxies are an enigmatic class of active galactic
nuclei (AGN) that exhibit peculiar multiwavelength properties across the electromagnetic …
nuclei (AGN) that exhibit peculiar multiwavelength properties across the electromagnetic …
A quasar-galaxy merger at z∼ 6.2: Black hole mass and quasar properties from the NIRSpec spectrum
We present JWST/NIRSpec integral field data of the quasar PJ308-21 at z= 6.2342. As
shown by previous ALMA and HST imaging, the quasar has two companion sources …
shown by previous ALMA and HST imaging, the quasar has two companion sources …
The Seoul National University AGN Monitoring Project. IV. Hα Reverberation Mapping of Six AGNs and the Hα Size–Luminosity Relation
The broad-line region (BLR) size–luminosity relation has paramount importance for
estimating the mass of black holes in active galactic nuclei (AGNs). Traditionally, the size of …
estimating the mass of black holes in active galactic nuclei (AGNs). Traditionally, the size of …