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Post Info TOPIC: Supernova 2009nr


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RE: Supernova 2009nr
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Title: Photometric observations of the supernova 2009nr
Authors: D. Yu. Tsvetkov, P. V. Balanutsa, V. M. Lipunov, I. M. Volkov, O. A. Tuchin, I. P. Kudelina, M. V. Pruzhinskaya, E. S. Gorbovskoy, V. G. Kornilov, A. A. Belinskii, N. V. Tyurina, V. V. Yurkov, Yu. P. Sergienko, A. G. Tlatov, A. V. Parkhomenko, D. V. Dormidontov, V. A. Senik, V. V. Krushinskii

We present the results of our UBVRI CCD photometry for the second brightest supernova of 2009, SN 2009nr, discovered during a sky survey with the telescopes of the MASTER robotic network. Its light and colour curves and bolometric light curves have been constructed. The light-curve parameters and the maximum luminosity have been determined. SN 2009nr is shown to be similar in light-curve shape and maximum luminosity to SN 1991T, which is the prototype of the class of supernovae Ia with an enhanced luminosity. SN 2009nr exploded far from the center of the spiral galaxy UGC 8255 and most likely belongs to its old halo population. We hypothesise that this explosion is a consequence of the merger of white dwarfs.

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RE: Possible supernova in UGC8255
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Supernova is Type Ia

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Supernova 2009nr
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2010nr.gif
Expand (361kb, 1263 x 1449)
Credit: MASTER Robotic Net


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Confirmed:
A magnitude 13.9 supernova, 2009nr, was discovered on the 22nd December, 2009, by the Lick Observatory Supernova Search ( LOSS), in the spiral galaxy UGC8255 (MCG+02-34-002). 
The supernova is located 36' East and 50' North from the center of the galaxy.
As yet the type is unknown.

Position (2000): RA 03 10 58.94, Dec +11 29 29.6

CBET 2111 (Subscription)

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A possible magnitude 13.6 supernova was discovered on the 22nd December, 2009, in the spiral galaxy UGC8255 (MCG+02-34-002) in the constellation Virgo.  
The supernova is located 36' East and 50' North from the center of the galaxy.

Position (2000): RA 03 10 58.95, Dec +11 29 29.3



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