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FLOYDS Classification of DLT17ah/AT 2017ckg as a Young Type II Supernova

ATel #10218; G. Hosseinzadeh (Las Cumbres Obs./UCSB), S. Valenti, K. A. Bostroem (UC Davis), L. Tartaglia (TTU/UC Davis), D. Sand, S. Wyatt (TTU), I. Arcavi, D. A. Howell, C. McCully (Las Cumbres Obs./UCSB)
on 28 Mar 2017; 00:39 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Curtis McCully (cmccully@lco.global)

Subjects: Optical, Supernovae

Referred to by ATel #: 10240

We obtained a spectrum of DLT17ah/AT 2017ckg (ATel #10214) on 2017 March 27.4 UT with the robotic FLOYDS instrument mounted on the Las Cumbres Observatory 2-meter telescope on Haleakala, Hawai'i. Unresolved narrow H-alpha emission at the redshift of the proposed host galaxy (z=0.017; Jones et al. 2009, "The 6dF Galaxy Survey Data Release 3," via NED) confirms the transient's association with LCSB S1878P, and a blue continuum and weak broad features consistent with H-alpha and He 587.6 nm suggest the transient is a young Type II supernova. The spectrum is available on the Transient Name Server.