PESSTO spectroscopic classification of optical transients
ATel #7452; C. Frohmaier, S. Prajs (Southampton), M. Dennefeld (IAP), N. Elias-Rosa (INAF), C. Inserra (QUB), K. Maguire (ESO), S. J. Smartt (QUB), K. W. Smith (QUB), M. Sullivan (Southampton), S. Valenti (LCOGT), O. Yaron (Weizmann), D. Young (QUB), Ilan Manulis (Weizmann), C. Baltay, N. Ellman, E. Hadjiyska, R. McKinnon, D. Rabinowitz, S. Rostami (Yale University), U. Feindt, M. Kowalski (Universitat Bonn), P. Nugent (LBL Berkeley), D. Wright (QUB), K. Chambers, H. Flewelling, M. Huber, E. Magnier, J. Tonry, C. Waters, R. J. Wainscoat (IfA, Univ. Hawaii)
on 27 Apr 2015; 23:07 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Mathew Smith (email@example.com)
Subjects: Optical, Supernovae
PESSTO, the Public ESO Spectroscopic Survey for Transient Objects (see Smartt et al., arXiv:1411.0299 http://www.pessto.org ), reports the following supernova classifications. Targets were supplied by the All Sky Automated Survey for SuperNovae (ASAS-SN, http://www.astronomy.ohio-state.edu/~assassin/index.shtml ), La Silla-Quest
survey (see Baltay et al., PASP, 2013, 125, 683) and Pan-STARRS Survey for Transients (see Huber et al., ATel #7153). All observations were performed on the ESO New Technology Telescope at La Silla on 2015-April-26, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024). 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
ASASSN-15hx | 13 43 16.69 | -31 33 21.5 | 20150426 | ASASSN | 15.0 | unknown | Ia | -11 d | a
ASASSN-15hy | 20 10 02.35 | -00 44 21.3 | 20150425 | ASASSN | 16.4 | 0.025 | Ia-pec | -13 d | b
LSQ15aja | 17 03 08.91 | +12 27 41.6 | 20150424 | LSQ | 19.0 | 0.068 | Ia | -2 d |
PS15afa | 10 50 18.15 | -12 06 28.1 | 20150423 | PS1 | 17.4 | 0.015 | II | +15 d | c
(a) SNID fits indicate a young, nearby (z<0.01) SN Ia, but we could not measure a host-galaxy spectroscopic redshift due to the position angle of observation.
(b) Best fit to SN2006gz. There are some matches to normal Ia. All fits indicate a very young object.
(c) Spectrally similar to a type IIP such as SN2004et