SN J195355968+4956078 in UGC 11494 galaxy. The new OT was spotted by Paolo Campaner (0,5 mt telescope of Ponte di Piave observatory) on behalf of ISSP, on 2015/06/12.010, located 36" West and 8" South from the center of UGC 11494. Type IIP. Mag 18.2.
See also the CBAT TOCP and ATEL.
CBAT "Transient Object Followup Reports"
PSN J19535968+4956078 2015 06 12.0097* 19 53 59.68 +49 56 07.8 18.2 U 36W 8S U11494 3 0
2015 06 12.0097
Paolo Campaner report the discovery of PSN (unfiltered magnitude = 18.2) on three images (limiting magnitude 19.5) obtained on June 12.0097 UT with a 0,4m reflector F/5.5 + CCD and exposure 75s at Ponte di Piave - Italy, in the course of the Italian Supernovae Search Project.
2015 06 13.88494
This transient was observed on 2015 06 13.88494 by G. Masi, remotely using the 17"-f/6.8 robotic unit part of the Virtual Telescope Project facility, at Bellatrix Astronomical Observatory in Ceccano, Italy. 180-seconds exposures, unfiltered, show the source at mag. 19.0 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 59.62; 05.4 (J2000.0, mean residuals of 0.1" on both axes).
Spectroscopic classification of two type II SNe at Asiago
ATel #7712; S. Benetti, L. Tomasella, E. Cappellaro, N. Elias-Rosa, P. Ochner, A. Pastorello, L. Tartaglia, G. Terreran, M. Turatto (INAF OAPd)
on 25 Jun 2015; 10:36 UT
Distributed as an Instant Email Notice Supernovae
The Asiago Transient Classification Program (Tomasella et al. 2014, AN, 335, 841) reports the spectroscopic classification of PSN J19535968+4956078 in UGC 11494 discovered by P. Campaner (ISSP) on 2015 Jun 12.01 and ASASSN-15ln (Atel #7670) in UGC 546 discovered by the All Sky Automated Survey for SuperNovae (ASAS-SN) on 2015 Jun 19.58. Informations on these transients are also available from the "Bright Supernova" website (http://www.rochesterastronomy.org/snimages/) and the CBAT Transient Object Followup Reports (http://www.cbat.eps.harvard.edu/index.html). The observations were performed with the Asiago 1.82 m Copernico Telescope (+AFOSC; range 340-820 nm; resolution 1.4 nm).
Name | Date (UT) | v | Type | Phase | Notes PSN J19535968+4956078 | 20150624.98 | 7518 | II-P | ~2 weeks | 1 ASASSN-15ln | 20150625.06 | 4501 | II | early | 2
Redshifts of the host galaxies are from NED
(1) The expansion velocity inferred from the position of the Halpha absorption is about 10500 km/s. Photometric monitoring from the ISSP collaboration shows that the object has maintained approximately constant magnitude over a period of about 10 days, suggesting that the object is a Type II-plateau SN.
(2) Halpha emissione is still very shallow. The expansion velocity inferred from the position of the Hbeta absorption is about 11000 km/s.
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.