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 …

We present the cosmological implications from final measurements of clustering using
galaxies, quasars, and Ly α forests from the completed Sloan Digital Sky Survey (SDSS) …

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) …

The 16th Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2
Southern Survey and Full Release of eBOSS Spectra - IOPscience This site uses cookies. By …

The Sloan Digital Sky Survey Reverberation Mapping Project: Mg ii Lag Results from Four
Years of Monitoring - IOPscience This site uses cookies. By continuing to use this site you …

Abstract 1ES 1927+ 654 is a nearby active galactic nucleus (AGN) that underwent a
changing-look event in early 2018, developing prominent broad Balmer lines that were …

Active galactic nuclei (AGN) can vary significantly in their rest-frame optical/UV continuum
emission, and with strong associated changes in broad line emission, on much shorter …

Results from a few decades of reverberation mapping (RM) studies have revealed a
correlation between the radius of the broad-line emitting region (BLR) and the continuum …

The discovery of changing-look active galactic nuclei (CLAGNs) with a significant change in
optical broad emission lines (optical CLAGNs) and/or strong variation of line-of-sight column …

We study the structure of accretion disks around supermassive black holes in the radial
range of–100 gravitational radii, using a three-dimensional radiation magnetohydrodynamic …