Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011atel.3738....1m&link_type=abstract
The Astronomer's Telegram, #3738
Astronomy and Astrophysics
Astronomy
Ultra-Violet, X-Ray, Supernovae
Scientific paper
The spectral properties of 2011hg have been recently demonstrated to show a good match to the energetic type-IIb 'hypernova' 2003bg approximately 7 days before maximum light (Marion, CBET 2894). A Swift-ToO was executed to observe the field of 2011hg starting from 2011-11-04T05:00:08 UT. No X-ray source is detected at the optical position of the transient (RA=23:11:48.73 dec=3:00:59.3) with a 3 sigma upper limit of 8.8d-3 cts/s in the 0.3-10 keV energy band (total exposure= 4.3 ks).
Margutti Raffaella
Milisavljevic Dan
Soderberg Alicia Margarita
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