A Transient "Changing-look'' Active Galactic Nucleus Resolved on Month Timescales from First-year Sloan Digital Sky Survey V Data

• Published in: arXiv.org
• Main Authors: Zeltyn, Grisha, Trakhtenbrot, Benny, Eracleous, Michael, Runnoe, Jessie, Trump, Jonathan R, Stern, Jonathan, Shen, Yue, Hernandez-Garcia, Lorena, Bauer, Franz E, Yang, Qian, Dwelly, Tom, Ricci, Claudio, Green, Paul, Anderson, Scott F, Assef, Roberto J, Guolo, Muryel, MacLeod, Chelsea, Davis, Megan C, Fries, Logan, Gezari, Suvi, Grogin, Norman A, Homan, David, Koekemoer, Anton M, Krumpe, Mirko, LaMassa, Stephanie, Liu, Xin, Merloni, Andrea, Martinez-Aldama, Mary Loli, Schneider, Donald P, Temple, Matthew J, Brownstein, Joel R, Ibarra-Medel, Hector, Burke, Jamison, Pellegrino, Craig, Kollmeier, Juna A
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 04.11.2022
• Subjects: Active galactic nuclei; Deposition; Dimming; Occultation; Photometry; Physics - Astrophysics of Galaxies; Physics - High Energy Astrophysical Phenomena; Quasars; Sky surveys (astronomy); Spectroscopy; Spectrum analysis

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 from the fifth Sloan Digital Sky Survey (SDSS-V). Optical photometry taken during 2020--2021 shows a dramatic...