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Classification of AT2017flo/PS17duu as a Type Ia SN

ATel #10592; D. A. Perley (LJMU), B. E. Tucker (ANU), A. V. Filippenko, T. G. Brink, W. Zheng (UC Berkeley), A. Rest (STScI), S. Smartt, K. Smith (QUB), K. Chambers, M. Huber, A. Shultz (IfA, Hawaii), P. M. Garnavich (Notre Dame), S. Margheim, (Gemini Observatory), D. Kasen (UCB/LBL), R. Olling, E. Shaya (U Maryland), M. Siebert, R. J. Foley, C. Kilpatrick, and Y.-C. Pan (UC Santa Cruz)
on 23 Jul 2017; 08:48 UT
Credential Certification: Daniel Perley (d.a.perley@ljmu.ac.uk)

Subjects: Optical, Supernovae, Transient

We report the classification of AT2017flo/PS17duu (TNSTR 12602) using an optical spectrum taken with the Low Resolution Imaging Spectrometer (LRIS) on the Keck-I 10 m telescope at 2017-07-20.25 UT. AT2017flo/PS17duu was discovered in the Kepler/K2 C14 as part of the ongoing KEGS search. Using Superfit (Howell et al. 2005, ApJ, 634, 119) we find a good match with a Type Ia supernova close to maximum light at a redshift of z=0.079, consistent with the redshift measured from narrow emission lines seen at this position.

 
Name      | PS Name | RA (J2000)  | Dec (J2000) | Disc. Date | Disc Mag | type |    z    |  Notes 
SN2017flo | PS17duu | 10 48 09.78 | +10 37 31.1 |  20170711  |  19.60 i | SNIa | 0.07855 |   (1) 

(1) SDSS DR12 reports that the object is located 1.21" from C14 galaxy SDSS J104809.83+103732.1 (EPICID=248797697) Redshift from SDSS.