Swift observations of SN2011ei (PSN J20342262-3158236)
Abstract
The spectral properties of 2011ei (PSN J20342262-3158236) have been recently demonstrated to show a good match to the energetic type-IIb 'hypernova' 2003bg approximately 7 days before maximum light (Milisavljevic, ATel #3526). A Swift-ToO was executed to observe the field of 2011ei starting from 2011-08-03T04:47:14 UT. No X-ray source is detected at the optical position of the transient (RA=20:34:22.62 dec=-31:58:23.6) with a 3 sigma upper limit of 4.6d-3 c/s in the 0.3-10 keV energy band (total exposure= 9.6 ks).
- Publication:
-
The Astronomer's Telegram
- Pub Date:
- August 2011
- Bibcode:
- 2011ATel.3528....1M
- Keywords:
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- Optical;
- Ultra-Violet;
- X-ray;
- Supernovae