An Early Radio Detection of SN iPTF13bvn
ATel #5198; A. Horesh, Y. Cao, K. Mooley, J. Carpenter (Caltech)
on 7 Jul 2013; 10:59 UT
Credential Certification: Assaf Horesh (assafh@astro.caltech.edu)
Subjects: Radio, Millimeter, Supernovae, Transient
We observed the SN iPTF13bvn, a young Type Ib/Ic SN (ATEL #5137), in mm- and cm-wavelength using the CARMA and the VLA observatories. Both the CARMA and the VLA observations were undertaken on 2013 June 18 (UTC). We detected radio emission in the 3-mm band (at a center frequency of 95 GHz) at an approximate flux of 3 mJy/beam. We continued to monitor the SN with CARMA on 4 additional epochs (2013 June 19, 21 23, and 25). The SN flux gradually declined until June 25 when we did not detect it any more with a flux limit (3 sigma) of 0.81 mJy.
The SN was also detected with the VLA on June 18 (UTC) in the K-band (22 GHz) at an approximate flux level of 0.4 mJy/beam. Our VLA observation in C band (6 GHz) resulted in a null-detection with an upper limit (3 sigma) of 0.06 mJy.
The complete set of radio measurements is summarized in Cao et al. (2013; ApJL submitted).
We thank the CARMA and the VLA staff for scheduling this target of opportunity.
