PESSTO spectroscopic classification of optical transients
ATel #5860; G. Leloudas (Stockholm/DARK), M. Ergon, J. Johansson, F. Taddia, J. Sollerman (Stockholm), S. Taubenberger (MPA), J. Anderson (ESO Chile), S. Benetti, A. Pastorello (Padova), C. Inserra (QUB), S. Smartt, K. Smith, D. Young (QUB), M. Sullivan (Southampton), S. Valenti (LCOGT), M. Fraser (IoA), O. Yaron, A. Gal-Yam, I. Manulis (Weizmann), C. Knapic, R. Smareglia, M. Molinaro (Trieste), C. Baltay, N. Ellman, E. Hadjiyska, R. McKinnon, D. Rabinowitz, E. S. Walker (Yale University), U. Feindt, M. Kowalski (Universitat Bonn), P. Nugent (LBL Berkeley)
on 7 Feb 2014; 18:27 UT
Credential Certification: Joel Johansson (joeljo@fysik.su.se)
Subjects: Optical, Supernovae
G. Leloudas (Stockholm/DARK), M. Ergon, J. Johansson, F. Taddia, J. Sollerman (Stockholm), S. Taubenberger (MPA), J. Anderson (ESO Chile), S. Benetti, A. Pastorello (Padova), C. Inserra (QUB), S. Smartt, K. Smith, D. Young (QUB), M. Sullivan (Southampton), S. Valenti (LCOGT), M. Fraser (IoA), O. Yaron, A. Gal-Yam, I. Manulis (Weizmann), C. Knapic, R. Smareglia, M. Molinaro (Trieste), C. Baltay, N. Ellman, E. Hadjiyska, R. McKinnon, D. Rabinowitz, E. S. Walker (Yale University), U. Feindt, M. Kowalski (Universitat Bonn), P. Nugent (LBL Berkeley)
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 (see Hadjiyska et al.,
ATel #3812). All observations were performed
on the ESO New Technology Telescope at La Silla on 2014 Feb 07 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
LSQ14rl | 10:00:25.97 | +03:22:52.8 | 20140204 | LSQ | 21.2 | 0.00686 | II | + few months | (1)
LSQ14pt | 12:46:21.37 | -20:24:49.2 | 20140201 | LSQ | 19.5 | 0.059 | IIn | pre-max | (2)
LSQ14nr | 11:48:43.97 | -17:55:43.2 | 20140201 | LSQ | 18.8 | 0.091 | Ia | max | (3)
(1) Nebular spectrum with fairly narrow (~2000 km/s) H-alpha and H-beta, [CaII] 7291,7323 A, Ca II 8542,8662 A and weak [O I] 6300,6364 A. This likely corresponds to CBAT PSN J10002592+0322530; http://www.cbat.eps.harvard.edu/unconf/followups/J10002592+0322530.html
(2) Narrow Balmer lines superimposed on a broader base with H-alpha P-Cygni absorption minimum at ~2500 km/s. SNID favors 2005gj at -12d, but secure classification of CSM-interacting SNe is difficult (see Leloudas et al.
2013, arXiv1306.1549L)
(3) Redshift and phase obtained with SNID.
