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Asiago spectroscopic classification of three supernovae

ATel #7830; G. Terreran, L. Tartaglia, S. Benetti, E. Cappellaro, N. Elias-Rosa, P. Ochner, A. Pastorello, L. Tomasella, M. Turatto (INAF OAPd)
on 23 Jul 2015; 14:08 UT
Credential Certification: Lina Tomasella (lina.tomasella@oapd.inaf.it)

Subjects: Optical, Supernovae

The Asiago Transient Classification Program (Tomasella et al. 2014, AN, 335, 841) reports the spectroscopic classification of the probable supernova in MRK 0477 (ATel #7800), discovered by the Hubble Space Telescope Advanced Camera for Surveys (HST/ACS), PSN J02513304+3730434 in KUG248+373 discovered by K. Itagaki and PSN J23342383+2727196 in PGC 1808598 discovered by the NAOC Transient Survey (TNTS). Informations on these transients are also available from the "Bright Supernova" website (http://www.rochesterastronomy.org/snimages/), The Astronomer’s Telegram, and the CBAT Transient Object Followup Reports (http://www.cbat.eps.harvard.edu/index.html). The observations were performed with the Asiago 1.82 m Copernico Telescope (+AFOSC; range 340-820 nm; resolution 1.4 nm).

 
 
Name                    | Discovery       | z       |   Type      | Phase      | Notes 
SN in MRK 0477          | 2015-07-08.310  | 0.038   |    Ia       | ~ +2 weeks | (1) 
PSN J02513304+3730434   | 2015-07-12.735  | 0.02    |    Ib/c     | ~ +1 month | (2) 
PSN J23342383+2727196   | 2015-07-12.77   | 0.059   |    Ia       | ~ +50d     | (3) 
 

(1) Spectrum obtained on July 22.99 UT. Best match with SN 1994D (Patat et al. 1996, MNRAS, 278, 111).

(2) Spectrum obtained on July 23.02 UT. Best match with SN 2007gr (Hunter et al. 2009, A&A, 508, 371). The redshift has been determined from the position of the main supernova features.

(3) Spectrum obtained on July 22.03 UT. Good match with SN 1989B (Wells et al. 1994, AJ, 108, 2233).

Classifications were done with GELATO (Harutyunyan et al. 2008, A&A, 488, 383) and SNID (Blondin and Tonry 2007, ApJ, 666, 1024). The Asiago classification spectra are posted at the website http://sngroup.oapd.inaf.it.

Padova Asiago SN group