PESSTO spectroscopic classification of optical transients
ATel #5961; N. Blagorodnova, N. Walton, M. Fraser (IoA), M. Dennefeld (IAP), S. Taubenberger (MPA), S. Benetti, A. Pastorello (Padova), C. Inserra, S. Smartt, K. Smith, D. Young (QUB), M. Sullivan (Southampton), S. Valenti (LCOGT), O. Yaron, A. Gal-Yam, (Weizmann), C. Knapic, R. Smareglia, M. Molinaro (Trieste), I. Manulis (Weizmann), D. Wright, R. Kotak, (QUB), S. Valenti (LCOGT), 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), 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 9 Mar 2014; 18:40 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Morgan Fraser (mf@ast.cam.ac.uk)
Subjects: Optical, Supernovae
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 Pan-STARRS (see Valenti et al., ATel #2668), the La Silla-Quest survey (see Hadjiyska et al., ATel #3812), the Catalina Real-time Transient Survey (http://crts.caltech.edu/) and the IAU Transient Objects Confirmation Page list. All observations were performed on the ESO New Technology Telescope at La Silla on 2014 Mar 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
PSNJ01440799-6107074 | 01:44:07.99 | -61:07:07.3 | 20140306 | TOCP | 15.2 | 0.02 | Ia | +3d |
LSQ14adi | 10:43:23.11 | +01:34:42.2 | 20140305 | LSQ | 18.9 | 0.11 | Ia | -3d | (1)
LSQ14ahc | 13:43:48.16 | -32:54:36.7 | 20140306 | LSQ | 18.1 | 0.05 | Ia | -5d | (2)
PSNJ11450358+1958254 | 11:45:03.58 | +19:58:25.3 | 20140307 | TOCP | 15.7 | 0.01 | Ia | ~max |
LSQ14aau | 14:52:38.47 | -07:54:42.2 | 20140303 | LSQ | 19.8 | 0.01 | II | ~+3 m | (3)
LSQ14act | 15:59:44.65 | -10:26:40.8 | 20140305 | LSQ | 19.3 | 0.06 | Ia | ~max |
PS1-14rf | 15:23:09.26 | +03:09:07.9 | 20140305 | PS1 | 19.2 | - | ? | - | (4)
PS1-14qj | 11:43:31.49 | -10:53:17.6 | 20140227 | PS1 | 20.0 | 0.13 | Ia | +9d |
LSQ14ahm | 11:41:22.45 | -12:23:57.5 | 20140306 | LSQ | 19.6 | 0.05 | Ia | -11d |
LSQ14ahd | 13:44:02.89 | -29:48:22.7 | 20140306 | LSQ | 20.2 | 0 | Stellar | - | (5)
(1) Also discovered by CRTS as CSS140305-104323+013442. Best matches are to SN 1991T-like templates.
(2) Best matches are to SN 1991T-like templates.
(3) Clear Type II SN at late time, with strong Halpha, Ca and [O II] emission.
(4) Target not present in acquisition image to a limiting magnitude of V~20.4. No sign of host galaxy or quiescent counterpart in pre-discovery images, possible minor planet.
(5) Blue continuum with break at ~4000 Ang, G or K star.
