The SDSS-V Black Hole Mapper Reverberation Mapping Project: Unusual Broad-line Variability in a Luminous Quasar oleh Logan B. Fries, Jonathan R. Trump, Megan C. Davis, C. J. Grier, Yue Shen, Scott F. Anderson, Tom Dwelly, Michael Eracleous, Y. Homayouni, Keith Horne, Mirko Krumpe, Sean Morrison, Jessie C. Runnoe, Benny Trakhtenbrot, Roberto J. Assef, W. N. Brandt, Joel Brownstein, Collin Dabbieri, Alexander Fix, Gloria Fonseca Alvarez, Sara Frederick, P. B. Hall, Anton M. Koekemoer, Jennifer I-Hsiu Li, Xin Liu, Mary Loli Martínez-Aldama, Claudio Ricci, Donald P. Schneider, Hugh W. Sharp, Matthew J. Temple, Qian Yang, Grisha Zeltyn, Dmitry Bizyaev