PESSTO spectroscopic classification of optical transients
ATel #6489; N. Blagorodnova, N. Walton, M. Fraser (IoA, Cambridge), C. Ashall (LJMU), R. Scalzo (Australian National University), C. Inserra (QUB), K. Maguire (ESO), S. J. Smartt, K. W. Smith (QUB), M. Sullivan (Southampton), S. Valenti (LCOGT), O. Yaron (Weizmann), D. Young (QUB), I. Manulis, A. Gal-Yam (Weizmann), C. Baltay, N. Ellman, E. Hadjiyska, R. McKinnon, D. Rabinowitz, E. S. Walker, S. Rostami (Yale University), U. Feindt, M. Kowalski (Universitat Bonn), P. Nugent (LBL Berkeley), L. Wyrzykowski,(Warsaw Observatory, Poland)
on 23 Sep 2014; 15:25 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Nadejda Blagorodnova (firstname.lastname@example.org)
Subjects: Optical, Supernovae
Referred to by ATel #: 6494
PESSTO, the Public ESO Spectroscopic Survey for Transient Objects (see Valenti et al., ATel #4037; http://www.pessto.org ),
reports the following supernova classifications. Targets were supplied by the La Silla Quest Survey (Baltay et al. 2013, PASP, 125, 683) and the OGLE-IV Transient Search (ATel #4495; Wyrzykowski et al. 2012).
All observations were performed on the ESO New Technology Telescope at La Silla on 2014 Sep 22 UT, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution).
Classifications were done with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) and GELATO (Harutyunyan et al., 2008, A&A, 488, 383). Classification spectra can be obtained from http://www.pessto.org (via WISeREP).
Name | RA (J2000) | Dec (J2000) | Disc. Date | Disc. Source | Disc Mag | z | Type | Phase | Notes
LSQ14fig | 21:00:58.84 | -16:06:52.8 | 2014-09-08 | LSQ | 20.06 | 0.04 | Ic | +4d | (1)
LSQ14fik | 21:22:14.84 | -01:28:32.1 | 2014-09-19 | LSQ | 19.12 | 0.15 | Ia | ~max |
PSNJ01300340-4241487 | 01:30:03.40 | -42:41:48.6 | 2014-09-21 | TOCP | 18.1 | 0.022 | II | pre-max | (2)
OGLE-2014-SN-073 | 05:28:51.63 | -62:20:16.1 | 2014-08-15 | OGLE | 20.07 | 0.13 | II | ~max | (3)
(1) Best match with sn2004aw at 4 days after explosion.
(2) Very young SN type II, few days after explosion. Located 22" west and 38" south of the center of the galaxy ESO244-31. Spectra displays blue continuum with weak H alpha consistent with the host redshift
(3) Slow raise over the last 40 days. The object's peak estimated absolute magnitude is -19.4 in I band.