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Detection of radio emission from MASTER OT J120451.50+265946.6 (type Ib supernova)

ATel #6712; Atish Kamble, Alicia Soderberg, Raffaella Margutti, Jerod Parrent (Harvard University), and Dan Milisavljevic (Smithsonian Astrophysical Observatory) on behalf of a larger collaboration
on 17 Nov 2014; 17:25 UT
Credential Certification: Atish Kamble (akamble@cfa.harvard.edu)

Subjects: Radio, Supernovae

Referred to by ATel #: 6719

We report radio observations with the Very Large Array (VLA) of supernova of type Ib (MASTER OT J120451.50+265946.6, ATel #6634, #6639, #6640, #6641) in galaxy NGC 4080.

We observed the position of the supernova with VLA at a mid-time of 2014 Oct 31.5 UT utilizing two, ~1 GHz sidebands centered at 5 & 7 GHz. We detect a radio source with a flux density of 3.0 +/- 0.02 mJy in the lower sideband (5 GHz) at the position consistent with the supernova. At the distance of the host galaxy, 15 Mpc, this corresponds to a spectral luminosity of 8 x 10^{26} erg/s/Hz.

Followup radio observations are ongoing. Multiband and spectroscopic coverage is encouraged.

We thank the NRAO staff for carrying out this observation.