[ Previous | Next | ADS ]

PESSTO spectroscopic classification of optical transients

ATel #5596; D. Bersier (Liverpool JMU), M. Dennefeld (IAP), S. J. Smartt, K. Smith (Queen's University Belfast), S. Benetti, A. Pastorello, (INAF - Padova Astronomical Observatory), S. Valenti (LCOGT/UCSB), S. Taubenberger (MPA Garching), D. Young, C. Inserra (Queen's University Belfast), M. Sullivan (University of Southampton), M. Fraser (University of Cambridge), A. Gal-Yam, O. Yaron, I. Manulis (Weizmann Institute for Science), R. Scalzo (ANU), C. Knapic, M. Molinaro, R. Smareglia (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), W. Burgett, K. Chambers, M. Huber, R. P. Kudritzki, E. Magnier, J. Morgan, C. Stubbs, W. Sweeney, J. Tonry, C. Waters (IfA, Univ. Hawaii), P. Draper, N. Metcalfe (Univ. of Durham), A. Rest (STScI)
on 24 Nov 2013; 16:51 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Stephen Smartt (s.smartt@qub.ac.uk)

Subjects: Supernovae

Referred to by ATel #: 5617

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) and Pan-STARRS1 (e.g. Rest et al. arXiv:1310.3828) . All observations were performed on the ESO New Technology Telescope at La Silla on 2013 November 23, 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
LSQ13cuw | 02:39:57.35 | -08:31:25.1 | 20131103 | LSQ | 19.8 | 0.25 | I | .. | (1) LSQ13dbj | 04:32:11.45 | -10:03:04.1 | 20131121 | LSQ | 19.8 | 0.058 | IIn | 0d | (2) LSQ13dbn | 04:37:35.32 | -05:34:19.0 | 20131108 | LSQ | 20.5 | 0.11 | Ia | ~0d | between peak to +7d LSQ13dbx | 02:35:11.09 | -33:17:00.5 | 20131116 | LSQ | 18.6 | 0.08 | Ia | 0d | around peak PS1-13eao| 03:29:56.35 | -28:46:17.7 | 20131117 | PS1 | 20.8 | 0.038 | Ia | -4d | (3) pre-max, reddened

(1) At least 2 week rise time, hostless. Blue continuum, possible SLSN Ic at z~0.25, broad absorption similar to 2010gx pre-maximum. (2) H-alpha/beta/gamma/delta in emission. Absolute mag around -17.1. LC is sparse, but appears to be around peak. (3) Host is ESO 418- G 007. Spectrum is young Ia, but significant extinction.