Italian Supernovae Search Project

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.
  • Twitter
  • Facebook

SN 2013bm in UGC5910 - 16 aprile 2013

E-mail Print PDF

SN 2013bm (A.R. 10 48 26.57, Dec. +38 24 07.9), scoperta il 16 aprile 2013 nella galassia ugc 5910 (offset 16W 19N), magnitudine 17.9, tipo II (Atel 4989).

SN scoperta da Fabrizio Ciabattari e Emiliano Mazzoni con il telescopio Newton da 50cm dell'Osservatorio di Monte Agliale (Lucca).

Electronic Telegram No. 3487
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director: Daniel W. E. Green; Hoffman Lab 209; Harvard University;
20 Oxford St.; Cambridge, MA 02138; U.S.A.
e-mail: 
 This e-mail address is being protected from spambots. You need JavaScript enabled to view it
  (alternate 
 This e-mail address is being protected from spambots. You need JavaScript enabled to view it
 )
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network

SUPERNOVA 2013bm IN UGC 5910 = PSN J10482657+3824079
F. Ciabattari and E. Mazzoni, Borgo a Mozzano, Italy, report the
discovery of a possible supernova (mag 17.9) on unfiltered CCD images
(limiting magnitude 19.5) obtained on Apr. 16.81 and 17.89 UT with a 0.5-m
Newtonian telescope in the course of the Italian Supernovae Search Project;
the new object is located at R.A. = 10h48m26s.57, Decl. = +38d24'07".9
(equinox 2000.0; astrometry with respect to UCAC-2 stars), which is 16" west
and 19" north of the center of the galaxy UGC 5910. Nothing is visible at
this position on digitized plates of the Palomar Sky Survey from 1998 May 16
(F plate; limiting magnitude 20.3) and 1991 Feb. 8 (J plate; limiting mag
20.3). The variable was designated PSN J10482657+3824079 when it was posted
at the Central Bureau's TOCP webpage and is here designated SN 2013bm based
on the spectroscopic confirmation reported below. Additional CCD magnitudes
for 2013bm: 2013 Jan. 12, [19.2 (Ciabattari); Apr. 18.058, 17.7 (Federica
Luppi and Luca Buzzi, Varese, Italy; 0.38-m f/6.8 reflector; position end
figures 26s.60, 07".5; reference stars from CMC-14 catalogue; image posted
at
website URL http://www.astrogeo.va.it/pub/TOCP/PSN_U5910.jpg); 18.480, 18.8
(Joseph Brimacombe, Cairns, Australia; 41-cm CDK telescope + infrared
filter;
position end figures 26s.54, 08".2; image posted at the following website
URL: http://www.flickr.com/photos/43846774@N02/8662138755/).

L. Tomasella, S. Benetti, A. Pastorello, E. Cappellaro, M. Turatto, and
P. Ochner, Osservatorio Astronomico di Padova, Istituto Nazionale di
Astrofisica, report that a spectrogram (range 340-820 nm; resolution 1.3
nm), obtained on Apr. 17.94 UT with the Asiago 1.82-m Copernico Telescope
(+ AFOSC) shows that PSN J10482657+3824079 = SN 2013bm is a young type-II
supernova. The spectrum of 2013bm shows a blue continuum with a black-body
temperature of about 10800 K. Emission Balmer and He I 587.6-nm lines are
recovered at the recession velocity of the host galaxy (UGC 5910), 7661 km/s
(from SDSS data release 5, 2006; via NED). The Asiago classification spectra
are posted at website URL http://graspa.oapd.inaf.it. Classification was
made via GELATO (Harutyunyan et al. 2008, A.Ap. 488, 383) and SNID (Blondin
and Tonry 2007, Ap.J. 666, 1024).

NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2013 CBAT
2013 April 23 (CBET 3487) Daniel W. E. Green

SN 2013bj in PGC50171- 4 aprile 2013

E-mail Print PDF

SN J2013bj (A.R. 14 14 19.63, Dec. -07 03 06.9), scoperta il 4 aprile 2013 nella galassia pgc 50171 (offset 21E 12S), magnitudine 18.0, tipo II (Atel 4975).

SN scoperta da Simone Leonini, L.M. Tinjaca Ramirez, G. Guerrini and P. Rosi con il telescopioRitchey Chretien da 53 cm di diametro dell'osservatorio di Montarrenti (Siena).

Electronic Telegram No. 3482
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director: Daniel W. E. Green; Hoffman Lab 209; Harvard University;
20 Oxford St.; Cambridge, MA 02138; U.S.A.
e-mail: 
 This e-mail address is being protected from spambots. You need JavaScript enabled to view it
  (alternate 
 This e-mail address is being protected from spambots. You need JavaScript enabled to view it
 )
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network

SUPERNOVA 2013bj IN PGC 50171 = PSN J14041963-0703069
Simone Leonini, Siena, Italy, reports the discovery by S. Leonini, L. M.
Tinjaca Ramirez, G. Guerrini, and P. Rosi of an apparent supernova (mag 
about
18.0) on an unfiltered CCD image (limiting mag about 18.7) taken on Apr. 
4.009
UT at the Montarrenti Observatory in the course of an automatic survey of 
the
Italian Supernovae Search Project using a 0.53m f/8.7 Ritchey-Chretien
telescope (+ Apogee Alta U47 camera). The new object is located at R.A. 14h04m19s.63,
Decl. = -7d03'06".9, equinox 2000.0), which is 21" east and 
12"
south of the nucleus of the galaxy PGC 50171. The discovery image is posted 
at
http://www.astrofilisenesi.it/public/Sne/Uploads/discovery_PSN_in_PGC50171.jp....
The variable was designated PSN J14041963-0703069 when it was posted at the
Central Bureau's TOCP webpage and is here designated SN 2013bj based on the
spectroscopic confirmation reported below. Additional magnitudes for 2013bj:
2012 May 10, [18.5 (Leonini); 2013 Apr. 6.384, 18.1 (Leonini; remotely with
a 0.43-m Planewave CDK telescope + FLI PL6303E camera; iTelescope.net
observatory near Mayhill, NM, USA); 6.392, 18.8 (Joseph Brimacombe, Cairns,
Australia; 51-cm RCOS telescope + luminance filter located at the New Mexico
Skies observatory near Mayhill; position end figures 19s.58, 07".7; image
posted at website URL 
http://www.flickr.com/photos/43846774@N02/8625043195/);
12.941, 18.1 (Leonini and Tinjaca Ramirez).

M. Childress, R. Scalzo, B. Tucker, F. Yuan, and B. Schmidt, Australian
National University (ANU), report spectroscopic classification of PSN
J14041963-0703069 = SN 2013bj as an old type-II supernova. They obtained a
20-min spectrum of 2013bj on Apr. 12.76 UT with the Wide Field Spectrograph
(WiFeS; Dopita et al. 2007, Ap. Space Sci. 310, 255) on the ANU 2.3-m
telescope at Siding Spring Observatory using the B3000/R3000 gratings
(wavelength range 350-980 nm at 0.1-nm resolution). The spectrum of 2013bj
was compared to supernova spectral templates using SNID (Blondin and Tonry
2007, Ap.J. 666, 1024). The best matches were consistently to spectra of
type-IIP supernovae of age 5-6 weeks, with the best match being to that of
SN 1992H at 44 days. The redshift fitted from 2013bj was z = 0.030 +/- 
0.005,
consistent with the redshift of the apparent host galaxy, PGC 50171 (z 0.028; Da
Costa et al. 1998, A.J. 116, 1)."

NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2013 CBAT
2013 April 21 (CBET 3482) Daniel W. E. Green

More Articles...