Asiago spectroscopic classification of Gaia14acq and two MASTER transients
ATel #6640; G. Terreran, M. Miluzio, P. Ochner, S. Benetti, L. Tomasella, E. Cappellaro, N. Elias-Rosa, A. Pastorello, L. Tartaglia, M. Turatto (INAF Osservatorio Astronomico di Padova)
on 29 Oct 2014; 08:32 UT
Credential Certification: Lina Tomasella (firstname.lastname@example.org)
Subjects: Optical, Supernovae
The Asiago Transient Classification Program (Tomasella et al. 2014, AN, 335, 841) reports the spectroscopic classification of three supernovae.
The observations were performed with the Asiago 1.82 m Copernico Telescope
(+AFOSC; range 340-820 nm; resolution 1.2 nm).
Name | Date (UT) | z | Type | Phase | Notes
MASTER OT J120451.50+265946.6| 20141028.14 | 0.00189 | Ib | ~3 weeks | (1)
MASTER OT J113930.78+251141.0| 20141028.12 | 0.01226 | II | ~1 month | (2)
Gaia14acg | 20141028.17 | 0.03145 | Ic | around max| (3)
(1) Host galaxy NGC 4080; from the distance modulus m-M=28.74 (Virgo + GA + Shapley) and the magnitude at discovery, we deduce an absolute magnitude around -14.8 mag. Discovered by MASTER robotic Net (Atel #6634, #6639).
(2) Host galaxy PGC 2817170; discovered by MASTER robotic Net (Atel #6595).
(3) The transient Gaia14acg was detected by the Gaia Photometric Science Alerts programme with a magnitude of 17.8 at
UT 2014 Oct. 23. BP and RP spectra indicated a likely SN. The host galaxy is UGC 8352, at z = 0.031145 (Huchra et al. 1995, ApJS 99, 391 via NED).
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.
We acknowledge ESA Gaia (http://cosmos.esa.int/gaia), and the DPAC Photometric Science Alerts Team (http://gaia.ac.uk/selected-gaia-science-alerts) (Rixon et al, 2014, ATel #6593).
Padova Asiago SN group