Dark Energy Survey Identification of A Low-Mass Active Galactic Nucleus at Redshift 0.823 from Optical Variability

We report the identification of a low-mass AGN, DES J0218\(-\)0430, in a redshift \(z = 0.823\) galaxy in the Dark Energy Survey (DES) Supernova field. We select DES J0218\(-\)0430 as an AGN candidate by characterizing its long-term optical variability alone based on DES optical broad-band light cur...

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Veröffentlicht in:	arXiv.org 2020-06
Hauptverfasser:	Guo, Hengxiao, Burke, Colin J, Liu, Xin, Phadke, Kedar A, Zhang, Kaiwen, Yu-Ching, Chen, Gruendl, Robert A, Lidman, Christopher, Shen, Yue, Morganson, Eric, Aguena, Michel, Allam, Sahar, Avila, Santiago, Bertin, Emmanuel, Brooks, David, Aurelio Carnero Rosell, Carollo, Daniela, Matias Carrasco Kind, Costanzi, Matteo, da Costa, Luiz N, De Vicente, Juan, Desai, Shantanu, Doel, Peter, Eifler, Tim F, Spencer, Everett, García-Bellido, Juan, Gaztanaga, Enrique, Gerdes, David W, Gruen, Daniel, Gschwend, Julia, Gutierrez, Gaston, Hinton, Samuel R, Hollowood, Devon L, Honscheid, Klaus, James, David J, Kuehn, Kyler, Lima, Marcos, Maia, Marcio A G, Menanteau, Felipe, Miquel, Ramon, Möller, Anais, Ogando, Ricardo L C, Palmese, Antonella, Paz-Chinchón, Francisco, Plazas, Andrés A, Romer, Anita K, Roodman, Aaron, Sanchez, Eusebio, Scarpine, Vic, Schubnell, Michael, Serrano, Santiago, Smith, Mathew, Soares-Santos, Marcelle, Sommer, Natalia E, Suchyta, Eric, Swanson, Molly E C, Tarle, Gregory, Tucker, Brad E, Varga, Tamas N, Collaboration, DES
Format:	Artikel
Sprache:	eng
Schlagworte:	Active galactic nuclei Dark energy Light curve Luminosity Physics - Astrophysics of Galaxies Red shift Sky surveys (astronomy) Spectral energy distribution Starburst galaxies Stellar mass XMM (spacecraft)
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