AGN STORM 2. I. First results: A Change in the Weather of Mrk 817

Kara, Erin and Mehdipour, Missagh and Kriss, Gerard A. and Cackett, Edward M. and Arav, Nahum and Barth, Aaron J. and Byun, Doyee and Brotherton, Michael S. and De Rosa, Gisella and Gelbord, Jonathan and Hernández Santisteban, Juan V. and Hu, Chen and Kaastra, Jelle and Landt, Hermine and Li, Yan-Rong and Miller, Jake A. and Montano, John and Partington, Ethan and Aceituno, Jesús and Bai, Jin-Ming and Bao, Dongwei and Bentz, Misty C. and Brink, Thomas G. and Chelouche, Doron and Chen, Yong-Jie and Colmenero, Encarni Romero and Dalla Bontà, Elena and Dehghanian, Maryam and Du, Pu and Edelson, Rick and Ferland, Gary J. and Ferrarese, Laura and Fian, Carina and Filippenko, Alexei V. and Fischer, Travis and Goad, Michael R. and González Buitrago, Diego H. and Gorjian, Varoujan and Grier, Catherine J. and Guo, Wei-Jian and Hall, Patrick B. and Ho, Luis C. and Homayouni, Y. and Horne, Keith and Ilić, Dragana and Jiang, Bo-Wei and Joner, Michael D. and Kaspi, Shai and Kochanek, Christopher S. and Korista, Kirk T. and Kynoch, Daniel and Li, Sha-Sha and Liu, Jun-Rong and McHardy, Ian M. and McLane, Jacob N. and Mitchell, Jake A. J. and Netzer, Hagai and Olson, Kianna A. and Pogge, Richard W. and Popović, Luka Č. and Proga, Daniel and Storchi-Bergmann, Thaisa and Strasburger, Erika and Treu, Tommaso and Vestergaard, Marianne and Wang, Jian-Min and Ward, Martin J. and Waters, Tim and Williams, Peter R. and Yang, Sen and Yao, Zhu-Heng and Zastrocky, Theodora E. and Zhai, Shuo and Zu, Ying

ApJ