The Italian Supernovae Search Project (ISSP) is the new collaboration between the main four rItalian groups operating in the extragalactic supernova research field: the CROSS of Col Drusciè Observatory - Cortina d'Ampezzo (Belluno), the MOSS of Montarrenti Observatory (Siena), the MASACAS of Monte Agliale Observatory (Lucca) and the MVSS of Montecatini Val di Cecina Observatory (Pisa).

The collaboration aims to create a joint supernova research program that allows to monitor many stellar field as frequently as possible searching for supernova explosions.

The Italian Supernovae Search Project (ISSP) is the new collaboration between the main four rItalian groups operating in the extragalactic supernova research field: the CROSS of Col Drusciè Observatory - Cortina d'Ampezzo (Belluno), the MOSS of Montarrenti Observatory (Siena), the MASACAS of Monte Agliale Observatory (Lucca) and the MVSS of Montecatini Val di Cecina Observatory (Pisa).

The collaboration aims to create a joint supernova research program that allows to monitor many stellar field as frequently as possible searching for supernova explosions.
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PSN J19535968+4956078 in UGC 11494

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We report the discover of PSN J195355968+4956078 near UGC 11494 galaxy. The new OT was spotted by Paolo Campaner on behalf of ISSP, on 2015/06/12.010, located 36" West and 8" South from the center of UGC 11494. Type unknown. Mag 18.2.

See also the CBAT TOCP.

 

CBAT "Transient Object Followup Reports"

 

PSN J19535968+4956078

 

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).

PSN J12415045-0710122 in PGC 42600

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We report the discover of PSN J12415045-0710122 spotted by F. Ciabattari, E. Mazzoni and M. Rossi on behalf of ISSP. The OT is located 3".8 West and 2".8 South of the center of PGC 42600. The type is Ia.

See attached image and confirmation Atel.

 

Spectroscopic Classification of ASASSN-15kn/PSNJ12415045-0710122 and ASASSN-15kg

ATel #7610; M. Torres, J. L. Prieto (Universidad Diego Portales), B. J. Shappee (Carnegie Observatories)
on 10 Jun 2015; 02:51 UT
Credential Certification: Jose L. Prieto ( This e-mail address is being protected from spambots. You need JavaScript enabled to view it )

Subjects: Optical, Supernovae, Transient

Referred to by ATel #: 7613

 

We obtained optical spectra (range 360-950 nm) of ASASSN-15kn/PSNJ12415045-0710122 (ATel #7602) and ASASSN-15kg (ATel #7608) on UT June 10.02 with the Magellan Baade 6.5-m telescope (+ IMACS). Both objects are Type Ia SNe around maximum light. Cross-correlation with a library of SN spectra using SNID (Blondin & Tonry 2007, ApJ, 666, 1024) shows that ASASSN-15kn/PSNJ12415045-0710122 is a normal Type Ia SN at +2 days and ASASSN-15kg is a normal Type Ia at -3 days. After correcting the spectra for the redshift of their host galaxies, we measure a Si II 635.5nm expansion velocity of approximately -10000 km/s and -11000 km/s for ASASSN-15kn and ASASSN-15kg, respectively.