Swift Ultraviolet Detections of Four Novae in M31

Details Swift Ultraviolet Detections of Four Novae in M31 Swift Ultraviolet Detections of Four Novae in M31

Aug 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008atel.1673....1i&link_type=abstract

The Astronomer's Telegram, #1673

Astronomy and Astrophysics

Astronomy

1

Ultra-Violet, Novae

Scientific paper

The Ultraviolet/Optical Telescope (UVOT) on board the Swift satellite started observing the central region of M31 in three ultraviolet filters on 2008-05-26.76 UT. The following UVOT magnitudes and 3-sigma upper limits are measured for novae (Henze et al., 2008, ATel #1602) that are within the UVOT field in the uvw1 (181-321nm, 1284 s exposure time), uvm2 (166-268nm, 1400 s), and uvw2 (112-264 nm, 1649 s) filter observations: Nova uvw1 uvm2 uvw2 M31N2008-03b 18.5±0.2 19.2±0.2 19.4±0.3 M31N2008-05a 17.8±0.1 18.2±0.1 17.9±0.1 M31N2008-05b 16.8±0.1 17.5±0.1 17.2±0.1 M31N2008-05c 19.9±0.2 20.4±0.5 20.3±0.4 M31N2008-06a >19.7 >20.6 >20.3 M31N2008-06b > 19.7 >20.6 >20.3 None of the novae is detected in earlier > 13.0 ks Swift UVOT uvw2 observations obtained on 2007-06-02, down to a (3- sigma) limiting magnitude of around 21.5.

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