Classification of Gaia16abl and Gaia16abn as type Ia supernovae
ATel #8656; A. S. Piascik, I. A. Steele (Liverpool JMU)
on 9 Feb 2016; 10:09 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Iain Steele (iainsteele@mac.com)
Subjects: Optical, Supernovae
We conducted a spectroscopic observation of transient Gaia16abl at 2016-02-07T06:04:31 UT. This transient was observed by the Gaia Photometric Science survey on 2016-01-28T15:49:02 at position RA=3:15:22.38 DEC=+52:21:23.9 near galaxy GALEXASC J031526.23+522128.2. Classification using SNID (Blondin and Tonry 2007, ApJ, 666, 1024) indicates it is a type Ia supernova > 14 days past maximum and with estimated red-shift z=0.060.
We conducted a spectroscopic observation of transient Gaia16abn at 2016-02-06T21:44:50 UT. This transient was observed by the Gaia Photometric Science survey on 2016-01-29T19:54:55 at position RA=03:34:44.49 DEC=+07:22:13.1. Classification using SNID indicates it is a type Ia supernova. We find a close match with SN2004bg at +3 days with an estimated red-shift of z=0.036.
Both spectra were obtain in the visible, 400-800nm, with resolution R~350, using the SPRAT spectrograph on the Liverpool Telescope located at Roque de los Muchachos.
Liverpool Telescope
