Padova-Asiago Supernova Group
The Asiago Transient Classification Program

The program started in 2011 with the aim to classify all transients that are accessible from Asiago and are bright enough for our telescope/instrumentation. We use mainly the 1.82m Copernico telescope of Cima Ekar and, if not available, the 1.22m Galileo telescope of the Pennar station. A few cases of transients classified by our group with other facilities (eg. TNG) are included in the database.
Transient classification information and spectra (fits format) are made immediately available at our site. The spectra are semi-automatic reduction with archive calibration data. Please keep this in mind when using them.
For SN classification we compare the output of two automatic SN classification codes: Gelato (Harutyunyan et al. 2008, A&A 488, 383) and SNID (Blondin and Tonry 2007, Ap.J. 666, 1024).
If you use some of the information posted in these pages please make a reference to the paper Tomasella etal. 2014, A.N. 335, 841.

Latest classifications
sn galaxy RA DEC discoverer type redshift ref class fits
IC1407 21:52:22.55 +03:25:18.50 ISSP Ia-91bg-like 0.028907 ATEL
AGC 331536 23:37:56.62 +27:16:37.73 ASAS-SN Ia-91Tlike 0.027999 ATEL
PGC166705 21:04:55.22 +65:42:29.30 ISSP Ic? 0.0224227 ATEL
NGC 606 01:34:50.52 +21:24:58.30 ISSP II 0.03322 ATEL
SDSS J234711.91+1004 23:47:11.64 +10:04:59.56 ASASSN Ia 0.034 ATEL

SN2016gdt in IC1407
SN2016gdt in IC1407
Discovered by: ISSP

The Asiago Transient Classification Program (Tomasella et al. 2014, AN, 335, 841) reports the spectroscopic classification of SN2016gdt in IC1407. The target was supplied by the Italian Supernovae Search Project (ISSP).

The observations were performed with the Asiago 1.82 m Copernico Telescope equipped with AFOSC (range 340-820 nm; resolution 1.4 nm).

IAU Name  | Host galaxy | Discovery (UT)| Observation (UT)|  Type      | Phase | Notes 
SN 2016gdt|   IC1407    | 2016-09-08.98 |  2016-09-10.92  |Ia-91bglike |  max  | (1)

(1) Spectrum consistent with type Ia SN 1991bg-like at maximum. The host galaxy redshift is from Falco et al. (1999, PASP, 111, 438) retrived from NED. The expansion velocity deduced from the SiII 635.5nm absorption is about 11500 km/s

The classification was performed using the GELATO (Harutyunyan et al. 2008, A&A, 488, 383) and SNID (Blondin and Tonry 2007, ApJ, 666, 1024) tools. The Asiago classification spectra are posted at the website