Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

PSN J23013638+3220069

PSN J23013638+3220069   2011 07 10.9936*  23 01 36.38 +32 20 06.9  17.9 U    6W   8N  Anon      0 0


2011 07 12.036

mag 17.9B



2011 07 12.034

mag 17.8R



2011 07 15.413

This possible supernova in PGC 1991943 was seen with 8 x 600 sec images using a red filter. Astrometry: RA 23 01 36.34 Dec 32 20 07.3 Photometry: Mag 17.6 +/- 0.1 R These data were collected by Joseph Brimacombe, Cairns, Australia. Link to image and further information: http://www.flickr.com/photos/43846774@N02/5941183646/



2011 07 20.349

Follow-up magnitude: 17.8 +/- 0.2 R These data were collected by Joseph Brimacombe, Cairns, Australia. Link to image and further information: http://www.flickr.com/photos/43846774@N02/5976615845/



2011 07 30.9649

SN to be confirmed on anonymous galaxy - Magnitude 18.25CR USNO A2.0 176R, 183R, 176R- Position measured: 23h 01m 36.38s +32º 20' 06.8" UCAC2 reference stars - exp 16 min (300 sec x 2 + 180 sec x 2) unfiltered - Image on http://anysllum.com/SNANONIMA2011A.jpg -Instrument: T-350mm f4.6 ST8XME - ANYSLLUM OBSERVATORY, Ager, Catalonia, Spain - MPC C07 - Observer: Xavier Bros - Agrupació Astronòmica de Sabadell



2011 08 2.065

Additional R filter photometry, obtained by B. Mikuz with 60 cm, f/3.3 Cichocki telescope, using R2 magnitudes from USNO-B1 catalogue: R=18.6 +/- 0.2



2011 08 11.13

A. Skielboe, T. Paarup, S. Knudsen, M. Stockman, S. Geier, J. Fynbo (Niels Bohr Institute, Copenhagen University) report, together with J. Sollerman and M. Stritzinger (Stockholm University), that they obtained an optical spectrum with the Nordic Optical Telescope (+ ALFOSC; range 350-900 nm, resolution 0.8 nm) on Aug. 11.13. The spectrum indicates this object is a Type Ia supernova at a redshift of 0.05. Cross-correlation with a library of supernova spectra using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) gives reasonable matches to both normal and subluminous 1991bg-like Type-Ia supernovae at roughly a month past maximum.


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