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FLOYDS Classification of ASASSN-17jz/AT 2017fro as an AGN

ATel #10668; I. Arcavi, C. McCully, G. Hosseinzadeh, D. A. Howell (Las Cumbres Obs./UCSB), S. Valenti (UC Davis), B. Trakhtenbrot (ETH).
on 24 Aug 2017; 17:08 UT
Credential Certification: Iair Arcavi (iarcavi@lcogt.net)

Subjects: Optical, AGN

We obtained a spectrum of ASASSN-17jz/AT 2017fro (ATel #10652) on 2017 August 19.4 UT with the robotic FLOYDS instrument mounted on the Las Cumbres Observatory 2-meter telescope on Haleakala, Hawai'i. The spectrum displays a blue continuum with strong ~1300 km/s wide Balmer lines at a redshift of 0.164. These features, together with the nuclear position of the transient in its host and the absolute magnitude of -22.6 implied by this redshift, are more consistent with an AGN classification than the Type II supernova classification reported in ATel #10620. SNID (Blondin & Tonry 2007, ApJ, 666, 1024) also finds an excellent fit to an AGN at that redshift. Our classification and spectrum are made publicly available on the Transient Name Server.