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Confirmation of 5 SN in the Kepler/K2 C16 Field with Gemini

ATel #11217; S. Margheim (Gemini Observatory), B. E. Tucker (Mt Stromlo Observatory, ANU), P. M. Garnavich (Notre Dame), A. Rest, G. Narayan (STScI), K. W. Smith, S. Smartt (Queen's University Belfast), D. Kasen (UCB/LBL), E. Shaya, R. Mushotzky, R. Olling (U Maryland), A. Villar (CfA), F. Forster (U. de Chile), A. Zenteno, D. James, R. Chris Smith (NOAO/CTIO)
on 23 Jan 2018; 09:20 UT
Credential Certification: Brad Tucker (brad@mso.anu.edu.au)

Subjects: Optical, Supernovae

We report new spectroscopic classifications by KEGS of supernova discovered by Pan-STARRS1 during a targeted search of the Kepler/K2 Campaign 16 field using the Gemini Multi-Object Spectrograph (GMOS) on both the Gemini North Observatory on Mauna Kea, and the Gemini South Observatory on Cerro Pachon. We used the R400 grating, obtaining spectra from 4650 - 9400 A. Classification was performed using SNID (Blondin & Tonry, 2007, ApJ, 666, 1024), the details of which are reported in the table below.

 
Name              |Spectrum   |Redshift| Type  |  Phase         |Notes 
                  |Date (UT)  |        |       |                | 
AT2017jeb/PS17fke |2018 Jan 11|  0.064 | SN I  |   near-max     |a 
AT2017jgh/PS17fkd |2018 Jan 07|  0.08  | SN IIb|-1 week pre-max |b  
AT2017jgi/PS17fkc |2018 Jan 08|  0.13  | SN Ia |+1 week post-max|  
AT2017jgj/PS17fke |2018 Jan 11|  0.07  | SN Ib |   near-max     |c 
AT2018ha/PS18ep   |2018 Jan 11|  0.07  | SN Ia |   near-max     |d 
 
a). Redshfit from host features.  Fits to both SN Ic and SN Iax are ok, however neither are well matched. 
b). We get several good fits to SN 1993J well before maximum. More observations are encouraged of this object. 
c). A few fits to the peculair SN 2005bf are obtained.  More observations are encouraged of this object. 
d). Several fits to SN 1991bg.  Matches the observations reported in ATel #11176