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Swift-XRT observations of Type IIn supernova SN 2017hcc

ATel #10936; Poonam Chandra (Stockholm University and NCRA-TIFR), Claes Fransson (Stockholm University), Roger A. Chevalier (University of Virginia)
on 8 Nov 2017; 10:47 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Poonam Chandra (poonam@ncra.tifr.res.in)

Subjects: X-ray, Supernovae, Variables

Poonam Chandra (Stockholm University and NCRA-TIFR), Claes Fransson (Stockholm University) ?and Roger A. Chevalier (University of Virginia) report: We observed the nearby Type IIn supernova SN 2017hcc (Mauerhan et al. ATel# 10911) with the Swift-XRT during 2017 Nov 3- Nov 5. Combining this with the previous observations on 2017 Oct 28 and Oct 30, we have a total exposure of 13.5 ks. We do not detect any X-ray emission from the SN position. The 3-sigma upper limit on the photon count is 1.02E-3 counts/s. Assuming a 20 keV thermal plasma and a Galactic HI column density of 3E20 cm^{-2} in this direction, this corresponds to an unabsorbed flux (0.3-10 keV) of 4.9E-14 erg/s/cm^2 or an unabsorbed luminosity (for d=75.5 Mpc) of 3.3E40 erg/s.?