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Spectral classification of AT2016cyt as a pre-maximum type Ia supernova

ATel #9210; A. S. Piascik, I. A. Steele (Liverpool JMU)
on 5 Jul 2016; 10:23 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Iain Steele (iainsteele@mac.com)

Subjects: Optical, Supernovae, Transient

We conducted a spectroscopic observation of transient AT2016cyt at 2016-07-05T04:04:02 UT.

This transient was detected by the Puckett Observatory Sky Survey (POSS, T. Puckett, R. Gagliano, E. Weinberg, R. Post, J. Newton) on 2016-07-02T09:21:40 UT at position RA = 21:09:35.83, DEC = 15:07:31.80 and reported via TNS, https://wis-tns.weizmann.ac.il/object/2016cyt

A spectrum was obtained in the visible, 400-800nm, with resolution R~350, using the SPRAT spectrograph on the Liverpool Telescope located at Roque de los Muchachos.

Classification using SNID (Blondin and Tonry 2007, ApJ, 666, 1024) indicates it is a type Ia supernova. We find a close match with SN2006lf at -6 days with a SNID estimated redshift of z=0.030.

The transient is 0.111 arcmin from galaxy NGC 7033, redshift z=0.030374 (source NED). The ejecta velocity estimated from the Si II 635.3nm absorption feature is 11,800 km/s

Liverpool Telescope