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PESSTO spectroscopic classification of optical transients

ATel #6398; N. Elias-Rosa, L. Tartaglia (INAF-Padova), L. Tomasella (INAF-Padova) A. Morales-Garoffolo (ICE-CSIC/IEEC), A. Pastorello (INAF-Padova), M. T. Botticella (INAF-OAC), C. Inserra (QUB), K. Maguire (ESO), S. Smartt (QUB), K. W. Smith (QUB), M. Sullivan (Southampton University), S. Valenti (LCOGT), O. Yaron (Weizmann), D. Young (QUB), I. Manulis (Weizmann), 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), L. Wyrzykowski (Warsaw Observatory, Poland)
on 16 Aug 2014; 17:13 UT
Credential Certification: Lina Tomasella (lina.tomasella@oapd.inaf.it)

Subjects: Optical, Supernovae

Referred to by ATel #: 6423

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 Baltay et al., PASP, 2013, 125, 683), the Master robotic Net (http://observ.pereplet.ru), the ASAS-SN (http://www.astronomy.ohio-state.edu/~assassin/index.shtml) and the IAU Transient Objects Confirmation Page list. All observations were performed on the ESO New Technology Telescope at La Silla in the night starting on 2014 Aug 15 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
MASTER OT J162412.26+091303.0| 16 24 12.26 | +09 13 03.0 | 20140813 | MASTER robotic NET | 16.6 | 0.04 | Ia | +2d | LSQ14drr | 20 41 08.26 | -55 28 16.1 | 20140724 | LSQ | 18.3 | 0.04 | IIP | +24d | (1) LSQ14dus | 22 03 44.68 | -52 43 19.8 | 20140801 | LSQ | 18.3 | 0.07 | Ia | +6d | LSQ14dtt | 21 33 10.24 | -18 20 26.1 | 20140710 | LSQ | 18.5 | 0.05 | Ia-pec| +10d | (2) OGLE-2014-SN-052 | 00 03 49.30 | -69 59 00.3 | 20140808 | OGLE | 20.0 | 0.08 | -- | -- | (3) LSQ14dvy | 21 40 59.74 | -45 23 02.0 | 20140726 | LSQ | 20.0 | 0.16 | Ia | +10d | (4) PSN J06363000-6643540 | 06 36 30.00 | -66 43 54.0 | 20140813 | TOCP | 17.0 | 0.02 | Ia | +22d | PSN J06335776-3448276 | 06:33:57.76 | -34:48:27.6 | 20140809 | TOCP | 16.1 | 0.02 | Ia | max | ASASSN-14fg | 14:19:15.97 | -33:42:17.0 | 20140810 | ASASSN | 17.0 | -- | -- | -- | (5)

(1) Spectrum has broad P-Cygni H lines and metal lines in the blue as seen in Type IIP SNe a few weeks into the plateau phase.
(2) SNID finds good match to peculiar Type-Ia SN 2002cx (Type-Iax). The low peak absolute magnitude (around -16.7) is consistent with this classification.
(3) Likely only galaxy light. Redshift estimate (z~0.085) is based mainly on SNID matches.
(4) Noisy spectrum of an hostless transient; a good match is found with normal SNe Ia about ten days after B-band maximum light.
(5) Not visible in acquisition image.

PESSTO, the Public ESO Spectroscopic Survey for Transient Objects