Spectroscopic Classifications of Optical Transients with SOAR
ATel #9468; C. D. Kilpatrick, Y.-C. Pan, R. J. Foley (UCSC), S. W. Jha (Rutgers), A. Rest (STScI), D. Scolnic (Chicago/KICP)
on 7 Sep 2016; 18:00 UT
Credential Certification: Yen-Chen Pan (ypan6@ucsc.edu)
Subjects: Optical, Cataclysmic Variable, Supernovae
We report the following classifications of optical transients from spectroscopic observations with the Goodman spectrograph
on the Southern Astrophysical Research (SOAR) telescope. Targets were supplied by GAIA, MASTER. All observations were made on 2016 Sep 7 UT. Classifications were performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Name | RA (J2000) | Dec (J2000) | z | Type | Phase | Notes
Gaia16bcg | 04:19:41.78 | -38:42:46.83 | 0.0 | CV | | (1)
Gaia16bco | 04:49:12.68 | -62:21:40.93 | 0.028 | IIp | +4d |
Gaia16bcp | 03:25:51.28 | -50:18:09.72 | 0.068 | Ia | +14d |
Gaia16bdd | 08:02:29.56 | -72:25:33.40 | 0.028 | Ia | ~max | (2)
Gaia16bew | 14:02:51.91 | -30:36:59.26 | 0.038 | Ia | ~max | (3)
MASTER OT J021729.29-595123.9 | 02:17:29.29 | -59:51:23.90 | 0.029 | Ia | +10d | (4)
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) Blue continuum with Balmer absorptions and Halpha emission line.
(2) We measure a Si II 6355 velocity of -10,000 km/s. Despite having a relatively blue continuum, there is strong Na D absorption (EW = 1.2 A) and Ca H&K absorption (each component EW = 0.3 A) at the host-galaxy redshift in the spectrum.
(3) We measure a Si II 6355 velocity of -10,900 km/s. See also ATEL #9467.
(4) See also ATEL #9467.
