PESSTO spectroscopic classification of optical transients
ATel #8264; J. Harmanen (Turku, NOT), M. Dennefeld (IAP, UPMC), S. Mattila, T. Kangas (Turku), K. Maguire (QUB), L. Galbany (MAS, DAS), C. Inserra, E. Kankare (QUB), I. Manulis (Weizmann), S. J. Smartt, K. W. Smith (QUB), M. Sullivan (Southampton), S. Valenti (LCOGT), O. Yaron (Weizmann), D. Young, D. Wright (QUB), K. Chambers, H. Flewelling, M. Huber, E. Magnier, J. Tonry, C. Waters, R. J. Wainscoat (IfA, Univ. Hawaii)
on 9 Nov 2015; 14:19 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Tuomas Kangas (email@example.com)
Subjects: Optical, Supernovae
PESSTO, the Public ESO Spectroscopic Survey for Transient Objects (see Smartt et al. 2015, A&A, 579, 40 http://www.pessto.org ), reports the following supernova classifications. Targets were supplied by Pan-STARRS Survey for Transients (see Huber et al., ATel #7153) (see below). All observations were performed on the ESO New Technology Telescope at La Silla on 2015 Nov. 8, 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
PS15csd | 02 04 55.53 | +18 48 15.0 | 20151101 | PSST | 19.15 | 0.044 | Ia | +4d | (1)
PS15csf | 02 26 02.24 | +17 03 40.4 | 20151101 | PSST | 18.65 | 0.021 | II | ~0d | (2)
(1) Peculiar SN Ia; best match to 2002cx-like SNe at a few days after maximum. Redshift from a narrow host galaxy line.
(2) Low S/N spectrum. Best matches to normal type II-P SNe (e.g. SN 1999em) around maximum.