Multiband photometric follow-up of ASASSN-13aw (SN 2013dr)

ATel #5245; L. Wyrzykowski (Warsaw Observatory/IoA Cambridge), H. C.Campbell, S. Koposov (IoA Cambridge), K. Ulaczyk (Warsaw Observatory), G. Damljanovic, O. Vince, R. Pavlovic, Z. Cvetkovic, M. Stojanovic (Astronomical Observatory, Belgrade) R. Busuttil, U. Kolb, J. Bochinski (Open University), V. Burwitz (MPE Garching), C. Haswell (Open University), J. Rodriguez (OAM, Mallorca), J. Harding (Nuffield Bursary Secondary School)
on 2 Aug 2013; 19:11 UT
Credential Certification: Lukasz Wyrzykowski (wyrzykow@ast.cam.ac.uk)

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We report the result of an extensive photometric follow-up of ASASSN-13aw (ATEL#5183) aka SN 2013dr, classified as type Ia supernova (Tomasella et al., CBAT TOCP for PSN J17193026+4742046). The telescopes involved in the follow-up operated in the preparatory mode for the forthcoming Gaia Science Ale$ follow-up network.

The photometric data were collected with a range of telescopes, instruments and filters, but were all calibrated to common pass bands of B,V and r,i using APASS all-sky star catalogues (Henden et al.2009).

The light curve contains about 150 data points and covers a range of about 30 days. It is available here: http://www.ast.cam.ac.uk/~wyrzykow/ASASSN-13aw_followup.pdf
Using a simple parabolic fit to the r-band light curve we obtain the peak MJD of 56491+-3.
The revised coordinates of the supernova are RA,Dec(J2000.0)= 17:19:30.10, 47:42:03.40.

The photometric calibrations were obtained using the Cambridge Photometric Calibration Server (CPCS), designed and maintained by Sergey Koposov and Lukasz Wyrzykowski. More info on CPCS: http://www.ast.cam.ac.uk/ioa/wikis/gsawgwiki/index.php/Follow-up