[ Previous | Next | ADS ]

PESSTO spectroscopic classification of optical transients

ATel #6516; N. Walton (IoA, Cambridge), C. Ashall (LJMU), M. Fraser, N. Blagorodnova (IoA, Cambridge), K. Maguire, S. Taubenberger (ESO), C. Inserra (QUB), S. J. Smartt, K. W. Smith (QUB), M. Sullivan (Southampton), 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, S. Rostami (Yale University), U. Feindt, M. Kowalski (Universitat Bonn), P. Nugent (LBL Berkeley), L. Wyrzykowski,(Warsaw Observatory, Poland)
on 29 Sep 2014; 18:29 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Nadejda Blagorodnova (nblago@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 the La Silla Quest Survey (Baltay et al. 2013, PASP, 125, 683), the OGLE-IV Transient Search (ATel #4495; Wyrzykowski et al. 2012) and from CRTS (http://crts.caltech.edu/). All observations were performed on the ESO New Technology Telescope at La Silla on 2014 Sep 28 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
CSS140914-021317-071932 | 02:13:16.73 | -07:19:32.1 | 2014-09-14 | CRTS | 18.45 | - | - | - | (1) CSS140925-223344-062208 | 22:33:43.78 | -06:22:08.1 | 2014-09-25 | CRTS | 17.72 | 0.03 | II | young | (2) LSQ14fin | 23:23:38.14 | -19:35:03.9 | 2014-09-19 | LSQ | 20.13 | 0.13 | Ia | -3d | LSQ14fml | 22:17:09.71 | +10:47:17.1 | 2014-09-21 | LSQ | 20.38 | 0.08 | Ia | -5d | LSQ14fnc | 21:13:46.15 | -27:11:59.7 | 2014-09-15 | LSQ | 20.51 | 0.04 | II | young | (3) LSQ14fnl | 02:21:58.06 | -16:41:23.5 | 2014-09-19 | LSQ | 21.08 | 0.13 | Ia | 0d | LSQ14fnx | 21:53:57.55 | -06:45:06.9 | 2014-09-15 | LSQ | 20.89 | 0.07 | Ia | ~max | LSQ14foj | 00:26:34.66 | -32:48:33.0 | 2014-09-24 | LSQ | 21.94 | 0.046 | Ia | -10d | (4) LSQ14fom | 21:59:49.72 | -30:16:15.5 | 2014-09-24 | LSQ | 19.87 | 0.06 | Ia | ~max | LSQ14fnm | 02:38:09.45 | -18:07:52.8 | 2014-09-23 | LSQ | 21.37 | - | - | - | (5) OGLE-2014-SN-078 | 02:38:39.31 | -76:00:10.9 | 2014-09-15 | OGLE | 20.38 | 0.09 | Ia | ~max | OGLE-2014-SN-082 | 06:27:22.24 | -71:32:42.7 | 2014-08-20 | OGLE | 19.04 | 0.03 | II | +1 month | (6) PSNJ04080713-0849372 | 04:08:07.12 | -08:49:37.1 | 2014-09-27 | TOCP | 16.50 | 0.033 | Ia | ~max |

Notes: (1) Low S/N. Flat continuum, no identifiable features. (2) Broad Balmer lines on a blue continuum. (3) Broad Balmer lines on a blue continuum. (4) Very young target. Host galaxy redshift GALEXASC J002634.59-324825.5 is z= 0.0461, however SN lines are more consistent with a redshift of 0.02. (5) Low S/N. Blue continuum, no identifiable features. (6) Type II SN, with Halpha in emission (FWHM~3500 km/s). Absolute magnitude at z=0.03 from OGLE data is I = -17.7 mag.