Classification of a KISO transient AT2017jzk as a young Type Ia Supernova

ATel #11157; Syed Uddin, Lei Hu, Lifan Wang, Tianrui Sun (Purple Mountain Observatory), Ji-an Jiang, Tomoki Morokuma, Mamoru Doi (University of Tokyo), Griffin Hosseinzadeh, D. Andrew Howell, Iair Arcavi, Curtis McCully (Las Cumbres Observatory/University of California Santa Barbara), Stefano Valenti (University of California Davis)
on 12 Jan 2018; 07:52 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Syed Uddin (

Subjects: Optical, Supernovae

We obtained an optical spectrum of AT2017jzk on 2017-12-29 using the FLOYDS instrument on the 2m telescope located at the Haleakala Observatory in Hawai'i and operated by the Las Cumbres Observatory. Spectral fitting with Superfit (Howell et al. 2005, ApJ 634, 1190) produces a best-fit with the template of SN1996X at a phase of 2 days after the peak, a Type Ia Supernova, with a redshift of 0.08. The spectrum can be found at