Spectroscopic Classification of Optical Transients with Keck II/ESI
ATel #10528; C. N. Leibler, E. Xhakaj, R. W. Everson, R. J. Foley (UCSC)
on 24 Jun 2017; 15:58 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Camille Leibler (email@example.com)
Subjects: Optical, Supernovae
We report the following classifications of optical transients from spectroscopic observations with the Echellette Spectrograph and Imager (ESI) on the Keck II telescope. Targets were supplied by ATLAS and ASAS-SN. All observations were made on 2017 June 24 UT. Classifications were performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Name | IAU Name | RA (J2000) | Dec (J2000) | z | Type | Phase | Notes
ATLAS17hlo | AT2017ewx | 14:02:16.52 | +07:40:44.2 | 0.016 | Ib | +6 |
ASASSN-17ie | AT2017exo | 18:31:41.90 | +16:39:07.3 | 0.016 | Ia | -7 | (1)
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) The minimum of the Si II 6355 line is blueshifted by -14,100 km/s.