The First Identification of Lyα Changing-look Quasars at High Redshift in DESI

We present two cases of Ly α changing-look (CL) quasars (J1306 and J1512) along with two additional candidates (J1511 and J1602), all discovered serendipitously at z  > 2 through the Dark Energy Spectroscopic Instrument and the Sloan Digital Sky Survey. It is the first time to capture CL events in L...

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Principais autores:	Wei-Jian Guo, Zhiwei Pan, Małgorzata Siudek, Jessica Nicole Aguilar, Steven Ahlen, Davide Bianchi, David Brooks, Todd Claybaugh, Kyle Dawson, Axel de la Macorra, Peter Doel, Kevin Fanning, Jaime E. Forero-Romero, Enrique Gaztañaga, Satya Gontcho A Gontcho, Klaus Honscheid, Robert Kehoe, Theodore Kisner, Andrew Lambert, Martin Landriau, Laurent Le Guillou, Marc Manera, Aaron Meisner, John Moustakas, Andrea Muñoz-Gutiérrez, Adam Myers, Jundan Nie, Nathalie Palanque-Delabrouille, Claire Poppett, Francisco Prada, Mehdi Rezaie, Graziano Rossi, Eusebio Sanchez, Michael Schubnell, Hee-Jong Seo, Joseph Harry Silber, David Sprayberry, Gregory Tarlé, Benjamin Alan Weaver, Zhimin Zhou, Hu Zou
Formato:	Artigo
Idioma:	Inglês
Publicado:	IOP Publishing 2025-01-01
Series:	The Astrophysical Journal Letters
Assuntos:	Accretion Active galaxies Supermassive black holes Quasars
Acceso en liña:	https://doi.org/10.3847/2041-8213/adb426
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