No detected X-ray counterpart to SN2011ef
ATel #3514; R. Margutti, A. Soderberg (Harvard University)
on 27 Jul 2011; 21:51 UT
Credential Certification: Raffaella Margutti (firstname.lastname@example.org)
Subjects: X-ray, Supernovae
We obtained 8.4 ks of Swift-XRT observations (id=32038)
of type-II SN2011ef (CBET 2772) spanning the time interval
July 22nd - July 26th.
Observations were entirely performed in Photon Counting mode.
No X-ray source is detected at the optical position, with a 3-sigma
upper limit of 5.1E-03 c/s corresponding to a flux limit of
~3E-13 erg/s/cm2 (0.3-10 keV energy range).
We thank the Swift team for scheduling these ToO observations.