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Asiago spectroscopic classification of AT2016bry

ATel #9018; P. Ochner (Universita’ di Padova - DFA), V. Tinella (Nicolini Astronomical Robotic Observatory, Cesena), G. L. Righetti (Stazione Astronomica Righetti, Ozzano dell’Emilia, Bologna), R. Belligoli, F. Castellani (Osservatorio Astronomico Monte Baldo, Ferrara di Mt. Baldo, Verona), A. Pastorello, E. Cappellaro, S. Benetti, L. Tomasella, N. Elias-Rosa, L. Tartaglia, G. Terreran, M. Turatto (INAF OAPD).
on 2 May 2016; 06:36 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 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.

Padova-Asiago SN group