Changing-look active galactic nuclei
C Ricci, B Trakhtenbrot - Nature Astronomy, 2023 - nature.com
Active galactic nuclei (AGNs) are known to show flux variability over all observable
timescales and across the entire electromagnetic spectrum. Over the past decade, a growing …
timescales and across the entire electromagnetic spectrum. Over the past decade, a growing …
The seventeenth data release of the Sloan Digital Sky Surveys: Complete release of MaNGA, MaStar, and APOGEE-2 data
N Abdurro'uf, K Accetta, C Aerts, V Silva Aguirre… - The Astrophysical …, 2022 - osti.gov
This paper documents the seventeenth data release (DR17) from the Sloan Digital Sky
Surveys; the fifth and final release from the fourth phase (SDSS-IV). DR17 contains the …
Surveys; the fifth and final release from the fourth phase (SDSS-IV). DR17 contains the …
The seventeenth data release of the Sloan Digital Sky Surveys: Complete release of MaNGA, MaStar, and APOGEE-2 data
K Accetta, C Aerts, VS Aguirre… - The Astrophysical …, 2022 - iopscience.iop.org
The Sloan Digital Sky Surveys (SDSS) have been almost continuously observing the skies
for over 20 yr, since the project began with a first phase in 1998 (SDSS-I; York et al. 2000) …
for over 20 yr, since the project began with a first phase in 1998 (SDSS-I; York et al. 2000) …
The X–shooter/ALMA Sample of Quasars in the Epoch of Reionization. II. Black Hole Masses, Eddington Ratios, and the Formation of the First Quasars
EP Farina, JT Schindler, F Walter… - The Astrophysical …, 2022 - iopscience.iop.org
We present measurements of black hole masses and Eddington ratios (λ Edd) for a sample
of 38 bright (M 1450<− 24.4 mag) quasars at 5.8≲ z≲ 7.5, derived from Very Large …
of 38 bright (M 1450<− 24.4 mag) quasars at 5.8≲ z≲ 7.5, derived from Very Large …
A preferential growth channel for supermassive black holes in elliptical galaxies at z≲ 2
The assembly of stellar and supermassive black hole (SMBH) mass in elliptical galaxies
since z∼ 1 can help to diagnose the origins of locally observed correlations between SMBH …
since z∼ 1 can help to diagnose the origins of locally observed correlations between SMBH …
A spectroscopic survey of biased halos in the reionization era (ASPIRE): a first look at the rest-frame optical spectra of z> 6.5 quasars using JWST
Studies of rest-frame optical emission in quasars at z> 6 have historically been limited by the
wavelengths accessible by ground-based telescopes. The James Webb Space Telescope …
wavelengths accessible by ground-based telescopes. The James Webb Space Telescope …
Demographics of z ∼ 6 quasars in the black hole mass–luminosity plane
We study the demographics of z∼ 6 broad-line quasars in the black hole (BH) mass–
luminosity plane using a sample of more than 100 quasars at 5.7< z< 6.5. These quasars …
luminosity plane using a sample of more than 100 quasars at 5.7< z< 6.5. These quasars …
Metallicity in Quasar Broad-line Regions at Redshift∼ 6
Broad-line regions (BLRs) in high-redshift quasars provide crucial information on chemical
enrichment in the early universe. Here we present a study of BLR metallicities in 33 quasars …
enrichment in the early universe. Here we present a study of BLR metallicities in 33 quasars …
OzDES Reverberation Mapping Programme: Mg ii lags and R−L relation
The correlation between the broad line region radius and continuum luminosity (R–L
relation) of active galactic nuclei (AGNs) is critical for single-epoch mass estimates of …
relation) of active galactic nuclei (AGNs) is critical for single-epoch mass estimates of …
Consistency study of high- and low-accreting Mg ii quasars: no significant effect of the Fe ii to Mg ii flux ratio on the radius–luminosity relation dispersion
We use observations of 66 reverberation-measured Mg ii quasars (QSOs) in the redshift
range 0.36≤ z≤ 1.686–a subset of the 78 QSOs we previously studied that also have (flux …
range 0.36≤ z≤ 1.686–a subset of the 78 QSOs we previously studied that also have (flux …