Spectroscopic Classifications of Optical Transients with SOAR
ATel #11642; Y.-C. Pan, R. J. Foley (UCSC), S. W. Jha (Rutgers), A. Rest (STScI), D. Scolnic (Chicago/KICP)
on 13 May 2018; 17:55 UT
Credential Certification: Yen-Chen Pan (ypan6@ucsc.edu)
Subjects: Optical, 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 the ATLAS and DECam (ATEL #11344). All observations were made on 2018 May 13 UT. Classifications were performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Name | IAU Name | RA (J2000) | Dec (J2000) | z | Type | Phase | Notes
C17-0117 | AT2018bfs | 13:34:34.00 | -13:25:45.33 | 0.102 | Ia | +1 d | (1)
ATLAS18ojt | AT2018bjp | 11:43:33.60 | -23:34:47.70 | 0.07 | Ic | | (2)
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) Targets discovered in the Kepler K2 C17 field and previously classified as a galaxy in ATel #11616. We measure a Si II 6355 velocity of -11,100 km/s
(2) Classification somewhat uncertain, with some similarity to SNe Ia as well.
