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Title:
Detection of nova M31N 2007-07c with Swift UVOT in the UVW2 filter
Authors:
Pietsch, W.; Sala, G.; Haberl, F.; Greiner, J.
Publication:
The Astronomer's Telegram, #1149
Publication Date:
07/2007
Origin:
ATEL
Keywords:
Ultra-Violet, X-ray, Novae
Bibliographic Code:
2007ATel.1149....1P

Abstract

An optical nova was detected in M31 (M31N 2007-7c, ATEL #1146) on 2007 July 19.00741 in the R band when its brightness was still rising. During the Swift XRT and UVOT observations of nova M31N 2006-11a performed from 2007 July 12 to 18 the new nova was also in the field of view. While during UVOT observations with the UVW2 filter on 2007 July 12 no source was visible at the position of the new nova (5 sigma upper limit of 19.6 mag or 1.08 x 10^-16 erg/s/cm^2/A), the nova was detected with a significance of more than 20 sigma in two Swift UVOT UVW2 images (1600 s and 1200 s exposure) centered on 2007 July 18.888 and 18.953.
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