849 citations · 8k across the 90 of their papers we have counts for
91 papers
Probing the Origin of Changing-look Quasar Transitions with Chandra
Qian Yang, Paul J. Green, Chelsea L. MacLeod +9
Extremely variable quasars can also show strong changes in broad-line emission strength and are known as changing-look quasars (CLQs). To study the CLQ transition mechanism, we pre…
A Transient "Changing-look'' Active Galactic Nucleus Resolved on Month Timescales from First-year Sloan Digital Sky Survey V Data
Grisha Zeltyn, Benny Trakhtenbrot, Michael Eracleous +32
We report the discovery of a new ``changing-look'' active galactic nucleus (CLAGN) event, in the quasar SDSS J162829.17+432948.5 at z=0.2603, identified through repeat spectroscopy…
The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar and APOGEE-2 Data
Abdurro'uf, Katherine Accetta, Conny Aerts +337
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 complete…
The Time Domain Spectroscopic Survey: Changing-Look Quasar Candidates from Multi-Epoch Spectroscopy in SDSS-IV
Paul J. Green, Lina Pulgarin-Duque, Scott F. Anderson +18
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 ti…
New Clues to the Evolution of Dwarf Carbon Stars From Their Variability and X-ray Emission
Benjamin R. Roulston, Paul J. Green, Rodolfo Montez +6
As main-sequence stars with CO, dwarf carbon (dC) stars are never born alone but inherit carbon-enriched material from a former asymptotic giant branch (AGB) companion. In contr…
Unexpected Short-Period Variability in Dwarf Carbon Stars from the Zwicky Transient Facility
Benjamin R. Roulston, Paul J. Green, Silvia Toonen +1
Dwarf carbon (dC) stars, main sequence stars showing carbon molecular bands, are enriched by mass transfer from a previous asymptotic-giant-branch (AGB) companion, which has since…