Asiago spectroscopic classification of Gaia14act as a Type-II SN
ATel #6646; V. Granata (DFA University of Padova), L. Tomasella, S. Benetti, E. Cappellaro, N. Elias-Rosa, P. Ochner, A. Pastorello, M. Turatto (INAF OAPd), L. Borsato A. Cunial, V. Nascimbeni, G. Piotto (DFA University of Padova)
on 30 Oct 2014; 09:31 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 Supernova Gaia14act near SDSS J122021.24+282448.1.
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
Gaia14act | 20141030.15 | 0.027 | II | ~2-3 months | (1)
(1) The redshift z of the host galaxy SDSS J122021.24+282448.1 (2MASX J12202126+2824502) is derived from Sloan Digital Sky Survey Data Release 6 as obtained Sep. 17, 2007 from http://www.sdss.org/dr6/products/catalogs/index.html, via NED.
The transient Gaia14act was detected by the Gaia Photometric Science Alerts programme with a magnitude of 18.4 at UT 2014 Oct. 26.25. BP and RP spectra indicated a likely SN. The candidate was recovered at RA= 12:20:22.5, DEC= +28:24:51.4 (J2000), corresponding to an offset with respect to the parent galaxy nucleus of 16'' E 3''.5 N, with magnitude r=19.04[0.12], i=18.66[0.92].
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 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
