Swift XRT Detection of Supernova 2012aw in X-Rays
Abstract
Using 14.7 ks of Swift X-Ray Telescope (XRT) observations of the Type IIP SN 2012aw in M95 (CBET #3054, ATel #3979), obtained between 2012-03-19.7 and 2012-03-22.2, an X-ray point-source is detected, consistent with the optical position of the SN, with a 3.8-sigma significance of source detection. The PSF, dead-time, and vignetting corrected XRT net count rate is (1.7+/-0.4)E-03 cts/s, corresponding to an unabsorbed (0.2-10 keV band) X-ray flux of (7.8+/-2.1)E-14 erg/cm/cm/s and a luminosity of (9.2+/-2.5)E38 erg/s for an adopted thermal plasma spectrum with a temperature of kT = 10 keV, a Galactic foreground column density of N_H = 2.88E+20 (Dickey & Lockman, 1990, ARAA 28) and a distance of 10 Mpc (NED).
- Publication:
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The Astronomer's Telegram
- Pub Date:
- March 2012
- Bibcode:
- 2012ATel.3995....1I
- Keywords:
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- X-ray;
- Supernovae