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Spectroscopic Classification of dlt17aw/AT2017drh as a Type Ia Supernova

ATel #10345; S. Valenti, K. A. Bostroem (UC Davis), D. Sand, S. Wyatt (TTU), L. Tartaglia (TTU, UC Davis), G. Hosseinzadeh, I. Arcavi, D. A. Howell, C. McCully (Las Cumbres Obs./UCSB)
on 3 May 2017; 16:24 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Stefano Valenti (stfn.valenti@gmail.com)

Subjects: Optical, Supernovae

We obtained a spectrum of dlt17aw/AT 2017drh (ATel #10343) on 2017 May 3.57 UT with the robotic FLOYDS instrument mounted on the Las Cumbres Observatory 2-meter telescope in Haleakala, Hawaii. Using SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we find a good fit to the Type Ia SN 2004eo at 2 weeks before maximum light. The spectrum is red suggesting that the SN is highly extinguished. The spectrum is available on the Transient Name Server