Padova-Asiago Supernova Group
The Asiago Transient Classification Program

Presentation
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
UGC 11635 20:43:22.40 +80:09:14.6 V. Tinella Ia 0.016 ATEL
fits
anonymous 18:44:12.49 +24:09:29.7 Y.Ding,W.Gao,X.Gao Ib 0.014 ATEL
fits
NGC 3631 11:20:59 +53:10:25.6 Ron Arbour Ib 0.0038 ATEL
fits
anonymous 03:10:34.50 +04:16:10.9 ASAS-SN Ia 0.023166 ATEL
fits
CGCG 336-41 14:06:44.37 +71:53:15.3 ASAS-SN Ia 0.034 ATEL
fits


SN2016bry in UGC 11635
SN2016bry in UGC 11635
Discovered by: V. Tinella

The Asiago Transient Classification Program (Tomasella et al. 2014, AN, 335, 841) reports the spectroscopic classification of AT2016bry, discovered by V. Tinella in UGC 11635, and preliminary photometric follow-up.

The observation was performed with the Asiago 1.82 m Copernico Telescope (equipped AFOSC; range 340-820 nm; resolution 1.4 nm). Classification was 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 available in the website http://sngroup.oapd.inaf.it.

Name         | Discovery UT  | Obs. Date UT |z      |   Type  | Phase | Notes  
AT2016bry    | 2016-04-19.85 | 20160430.11  |0.016  |   Ia    | +2d   | (1)   

(1) An excellent match is obtained with the Type Ia SN 1989B (Barbon et al. 1990, A&A, 237, 79) near the maximum light. From the position of the minimum of the Si II 635nm feature, we infer an expansion velocity of 10800 km/s for the ejected material.

In addition follow-up observations were obtained at several epochs.

Obs. Date UT  | B mag (err)   | V mag (err)   | R mag (err)   | I mag (err)   | Observer
2016-04-19.85 |               | 16.59 +- 0.08 |               |               | Tinella(2) 
2016-04-20.94 | 16.66 +- 0.07 | 16.35 +- 0.06 |               |               | Righetti
2016-04-21.06 |               | 16.33 +- 0.10 |               |               | Tinella(2)   
2016-04-25.93 | 16.00 +- 0.03 | 15.83 +- 0.02 | 15.36 +- 0.01 | 14.91 +- 0.02 | Righetti 
2016-04-25.97 |               | 15.94 +- 0.06 |               |               | Tinella(2)
2016-04-27.35 | 15.87 +- 0.02 | 15.57 +- 0.01 | 15.17 +- 0.01 |               | Castellani, Belligoli         
2014-04-29.88 |               | 15.90 +- 0.05 |               |               | Tinella(2)
2016-04-29.91 | 16.46 +- 0.06 | 15.80 +- 0.03 | 15.48 +- 0.03 | 15.41 +- 0.03 | Righetti
2016-04-30.12 | 16.39 +- 0.01 | 15.99 +- 0.02 | 15.80 +- 0.04 |               | Ochner

(2) Unfiltered data scaled to V-band magnitudes.