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Spectroscopic Classification of AT2017fna with Keck I

ATel #10590; Y.-C. Pan, M. R. Siebert, R. J. Foley (UCSC)
on 21 Jul 2017; 20:25 UT
Credential Certification: Yen-Chen Pan (ypan6@ucsc.edu)

Subjects: Optical, Supernovae

We report the classification of AT2017fna (=ATLAS17ioz) from a spectroscopic observation made on 2017 July 20 UT with the Low Resolution Imaging Spectrometer (LRIS) on the Keck I telescope. The classification was performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).

 
Name       | IAU Name  | RA (J2000)  | Dec (J2000)  | z     | Type | Phase |  Notes
ATLAS17ioz | AT2017fna | 23:46:51.85 | -10:27:32.02 | 0.074 | Ia | -3 d | (1)

Notes: When the redshift is given to 2 decimal places, it is derived from the SN spectrum. Otherwise, the redshift is determined from the host galaxy. (1) SN 1991T-like object. We measure a Si II 6355 velocity of -9,700 km/s.