M A S T E R
(Mobile Astronomical System of the
TElescope-Robots)
Pipeline finished at
april
2005Super Nova Search
The new soft for our new computers finished at last days of the
2009
SN 2010V : Supernovae discovered by MASTER Kislovodsk on 4 Feb 2010
(R=14.3) (IAU Circ 2162):
7 February 2010 IAU Electronic Telegram No.2162
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director: Daniel W. E. Green; Room 209; Dept. of Earth and Planetary
Sciences; Harvard University; 20 Oxford St.; Cambridge, MA 02138; U.S.A.
e-mail: cbat@cfa.harvard.edu; dwe_green@eps.harvard.edu
URL http://www.cfa.harvard.edu/iau/cbat.html
SUPERNOVA 2010V IN PGC 51710
Further to CBET 2111, V. Lipunov, Sternberg Astronomical Institute,
reports the discovery by Pavel Balanutsa of an apparent supernova
(magnitude
R = 14.3) on four CCD images (limiting mag 18.6) taken during Feb.
4.096-4.13
UT with the MASTER robotic-telescopes network at Kislovodsk. The new object
is located at R.A. = 14h28m38s.46, Decl. = +30d38'09".5 (equinox 2000.0),
which is 1" west and 4".5 south of the center of PGC 51710. Nothing is
visible at this position on images taken on 2004 May 14.9 (limiting
unfiltered mag about 19.0). Images of 2010V have been posted at website URL
http://observ.pereplet.ru/images/SN04feb10/SN100204.jpg. Following posting
on the Central Bureau's unconfirmed-objects webpage, M. Nissinen and V.-P.
Hentunen (Varkaus, Finland) report that they obtained confirming images
(limiting red mag 17.2) of 2010V on 2010 Feb. 7.35 UT remotely with the
GRAS004 Epsilon 25-cm f/3.4 Global-Rent-a-Scope telescope (+ SBIG ST-10 CCD
camera) near Mayhill, NM, USA, yielding magnitude R = 15.3 +/- 0.1 and
position end figures 38s.53, 09".7; they comment that a better offset is
5".9 west and 4".6 north of the center of the galaxy PGC 51710, adding
that nothing is visible at this position on a red Digitized Sky Survey (DSS)
plate. They have posted their image of 2010V at the following website URL:
http://cutenews.kassiopeia.net/data/upimages/pgc51710.png. T. Yusa (Osaki,
Miyagi-ken, Japan) also obtained 120-s unfiltered CCD images (limiting mag
18.5) of 2010V remotely with a 25-cm f/3.4 reflector at the same RAS
Observatory site, yielding mag 16.2 on Feb. 7.419 and mag 16.0 on Feb.
7.444, with position end figures 38s.44 +/- 0s.01, 09".4 +/- 0".1 (and
offset
7".6 west, 5".8 north), adding that nothing is visible at this position on
DSS images from 1950 Dec. 4 and 1991 Apr. 17 (red plate). Yusa has posted
his image at website URL http://space.geocities.jp/yusastar/PSN100207.htm.
NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
superseded by text appearing later in the printed IAU Circulars.
2010 February 7 (CBET 2162) Daniel W. E.
Green
SN 2009nr : Supernovae discovered by MASTER Blagoveschensk on 22 dec 2009
(13.6m) (IAU Circ 2111):
IAU CIRCULARS
6 January 2010 IAU Electronic Telegram No.2111
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html
SUPERNOVA 2009nr IN UGC 8255
Pavel Balanutsa and Vladimir Lipunov, Sternberg Astronomical Institute,
on behalf of the MASTER robotic-telescopes network, report the
discovery of
an apparent supernova (mag 13.6) on a 60-s unfiltered CCD image (limiting
mag 16.2 with an Apogee AltaU16m camera) taken on 2009 Dec. 22.901 UT at
Blagoveschensk. Images (limiting magnitudes V = 17.8, R = 18.1) taken at
Kislovodsk on Dec. 31.1 yield V = 13.1 and R = 13.5 for the new object. SN
2009nr is located at R.A. = 13h10m58s.95, Decl. = +11d29'29".3 (equinox
2000.0), which is 36" east and 50" north of the center of the galaxy UGC
8255.
Nothing is visible at this position on twenty reference images taken over
the past six years with a robotic telescope near Moscow, including one taken
on 2008 Apr. 2 (limiting red mag 17.5). The discovery image is posted at
website URL http://observ.pereplet.ru/images/SN31dec09/sn_ugc08255.JPG.
Following posting on the Central Bureau's unconfirmed-objects webpage,
M. Nissinen and V.-P. Hentunen, Varkaus, Finland, report that they
obtained
multiple 120-s R-band images (limiting mag 17.2) of 2009nr remotely on 2010
Jan. 5.76 with the 32-cm Global-Rent-a-Scope telescope GRAS09 (+ SBIG ST-10
CCD camera) at Moorook, Australia, measuring the new object to have
magnitude
R = 14.3 and position end figures 58s.97, 29".3 (and the galaxy center's
position end figures 56s.5, 28'39"). Nothing is visible at this position on
a Palomar Sky Survey red F plate (via the Digitized Sky Survey) to limiting
mag 20.8.
Further to CBET 2095, W. Li, S. B. Cenko, and A. V. Filippenko have
just reported the independent discovery of 2009nr on an unfiltered KAIT
image
taken on 2010 Jan. 6.53, providing mag 13.9 and position end figures 58s.94,
29".6.; nothing was visible at this position on a KAIT image from 2009 Apr.
19.18 (limiting mag 19.0).
NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
superseded by text appearing later in the printed IAU Circulars.
2010 January 6 (CBET 2111) Daniel W. E.
Green
7 January 2010 IAU Electronic Telegram No.2112
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html
SUPERNOVAE 2009nr AND 2010A
R. J. Foley, Harvard-Smithsonian Center for Astrophysics, on behalf of
the CfA Supernova Program, reports that inspection of CCD spectra
(range
350-740 nm), obtained by G. Esquerdo on Jan. 7 UT with the Whipple
Observatory 1.5-m telescope (+ FAST), shows that 2009nr (cf. CBET 2111) and
2010A (cf. CBET 2109) are both type-Ia supernovae. Cross-correlation with a
library of supernova spectra using the "SuperNova IDentification" code
(SNID;
Blondin and Tonry 2007, Ap.J. 666, 1024) indicates that both may be similar
to the luminous supernovae 1991T and 1999aa (e.g., Filippenko et al. 1992,
Ap.J. 384, L15; Garavini et al. 2004, A.J. 128, 387). SN 2009nr is most
similar to SN 1991T at 12 days past maximum brightness. SN 2010A is similar
to SN 1999aa at one day before maximum brightness, but is also similar to
the "normal" type-Ia supernova 1999ee at 9 days before maximum brightness.
Removing the host-galaxy recession velocity of 6180 km/s (found from narrow
emission lines), the minimum of the Si II 635.5-nm absorption feature is
blueshifted by 12700 km/s.
NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
superseded by text appearing later in the printed IAU Circulars.
2010 January 7 (CBET 2112) Daniel W. E.
Green
SN 2008gy : Supernovae discovered by MASTER on 30 oct 2008 (17.7m) (CBET 1565):
History
2008
8 November 2008 IAU Electronic Telegram No.1565
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html
SUPERNOVA 2008gy
V. M. Lipunov, Moscow State University, reports the discovery by
Pavel Balanutsa, on behalf of the large "MASTER robotic Net" team
(cf.
http://observ.pereplet.ru) of an apparent supernova (mag 17.7)
on two unfiltered CCD images (bandpass close to the R band; limiting
mag
about 18.7) taken with a 355-mm telescope near Moscow on Oct. 30.99 UT,
noting the new object to be located at R.A. = 3h10m00s.96, Decl. =
+19o13'23".1 (equinox 2000.0; uncertainty about 0".7), which is 23"
west
and 6" north of the center of PGC 1584648. Nothing is visible at this
position on earlier MASTER images (limiting mag 19 on 2005 Feb. 5.68).
The discovery image has been posted at the following website URL:
http://observ.pereplet.ru/images/SN081030/SNdiscovery081030.jpg.
Following posting on the Central Bureau's unconfirmed-observations
webpage, T. Kryachko (Kazan State University, Astrotel Observatory) and
S. Korotkiy (Ka-Dar Observatory, Moscow) report that three unfiltered
images (limiting red mag 20.0) taken on Nov. 2.941 with a 80-mm ED
refractor (+ ST-2000XM CCD camera) at Karachay-Cherkessia, Russia,
yield mag 16.8 and position end figures 00s.93, 23".1 (uncertainty
0".2) for 2008gy, noting that nothing is visible at this position on a
Palomar Sky Survey image obtained on 1986 Sept. 29 (via the Digitized
Sky Survey; limiting red mag 20.5); they have posted an image of 2008gy
at website URL http://www.astroalert.su/files/psn_crop.jpg.
NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
superseded by text appearing later in the printed IAU Circulars.
2008 November 8 (CBET 1565) Daniel
W. E.
Green
SN 2006ak Ia: Supernovae discovered by MASTER on 17 feb 2006 (CBET 408)
History 2006ak
SN 2006X: Prediscovery image 06 feb 2006
A type Ia supernova found 1-2
weeks before maximum light. M100 is one of our more prolific galaxies when
it comes to supernovae. This will be the fifth one observed in the 100+
years we have been looking.(IAUC 8667)
SN 2006X
images sub-page
SN 2005ee II: Second supernovae discovered by MASTER on 25 aug 2005 (IAUC 8603)
SN 2005bv Ia: First supernovae discovered by MASTER on 28 apr 2005 (IAUC 8520)
