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PESSTO spectroscopic classification of optical transients

ATel #9467; D. Bersier L. Short (Liverpool JMU), J. Lyman (Univ. of Warwick), C. Inserra (QUB), E. Kankare (QUB), K. Maguire (QUB), S. J. Smartt (QUB), K. W. Smith (QUB), M. Sullivan (Southampton), S. Valenti (UC Davis), O. Yaron (Weizmann), D. Young (QUB), I. Manulis (Weizmann)
on 7 Sep 2016; 11:17 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Stephen Smartt (s.smartt@qub.ac.uk)

Subjects: Optical, Supernovae

Referred to by ATel #: 9468

PESSTO, the Public ESO Spectroscopic Survey for Transient Objects (see Smartt et al. 2015, A&A, 579, 40 http://www.pessto.org ), reports the following supernova classifications. Targets were supplied by DPAC and the Photometric Science Alerts Team of ESA Gaia (http://gsaweb.ast.cam.ac.uk/alerts), and CRTS (Drake et al. 2009, 696, 870 ; http://crts.caltech.edu/ )." All observations were performed on the ESO New Technology Telescope at La Silla on 2016 09 06, 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 and additional details can be obtained from http://www.pessto.org (via WISeREP) and the IAU Transient Name Server. Redshifts reported to more than 2 significant figures are from host galaxy emission lines, otherwise are estimated from the transient object features.

 
Survey Name | IAU Name  | RA (J2000)  | Dec (J2000)  | Disc. Date | Source      | Disc Mag |  z      | Type   | Phase     | Notes 
Gaia16bdz   | SN2016frs | 02:17:29.36 |  -59:51:23.4 |  20160823  | Gaia        |  16.86   | 0.02919 |  Ia    | +8 to 10d | (1) 
Gaia16bew   | SN2016fss | 14:02:51.91 |  -30:36:59.2 |  20160901  | Gaia        |  16.80   | 0.037   |  Ia    | at max    | (2)  
CSS160904-230721+025428 | 23:07:21.47 |  +02:54:28.3 |  20160904  | CRTS        |  17.50   | 0.063   | Ia-CSM | >+20d     | (3) 
CSS160904-224104+050529 | 22:41:03.74 |  +05:05:28.5 |  20160904  | CRTS        |  17.85   | 0.00    | Stellar|           | (4) 
 
(1) 24 arcsec (or 16kpc) from most likely host elliptical galaxy NGC888, z=0.029190 
(2) Near  GALEXASC J140251.91-303700.7, which is extended blue source in Pan-STARRS1 3Pi image stack  
(3) Spectrum similar to IIn/Ia-CSM SN2005gj at +23d, 1 arcsec offset from faint host SDSS J230721.53+025428.2, r=20.6 (not submitted to the IAU TNS) 
(4) Featureless blue continuum. Emission line at H-alpha, at zero redshift. No host object in the Pan-STARRS 3Pi stack. Galactic variable, probable CV.