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Swift follow-up observations of iPTF16abc

ATel #8910; Yi Cao, Mansi M. Kasliwal (Caltech), S. Bradley Cenko (GSFC/UMd) on behalf of the intermediate Palomar Transient Factory collaboration
on 5 Apr 2016; 18:30 UT
Credential Certification: Yi Cao (ycao@astro.caltech.edu)

Subjects: Optical, Ultra-Violet, Supernovae

Referred to by ATel #: 8937

We triggered Swift to observe the young type Ia supernova iPTF16abc (ATel#8907, ATel#8909) under our ToO program (PI: Kasliwal; program ID: 1215232). The first visit was undertaken around UT April 5.4, about 12 hours after our trigger. The UVOT photometry (in AB system) is as follows:

 
UW2 > 22.45 
UM2 > 22.99 
UW1 = 21.76 +/- 0.34 
U = 19.24 +/- 0.11 
V = 18.37 +/- 0.24 
B = 18.88 +/- 0.13 

The supernova is not detected by XRT, leaving a 3-sigma upper limit of 4.26e-3 cts/s.

More Swift observations are scheduled in the next few days.