Detection of radio emission from Type Ib supernova J22460504-1059484 (PS15bgt)
ATel #7845; Atish Kamble, Raffaella Margutti, Dan Milisavljevic, Alicia Soderberg & Jerod Parrent (Harvard-Smithsonian Center for Astrophysics) on behalf of a larger collaboration.
on 27 Jul 2015; 20:03 UT
Credential Certification: Atish Kamble (akamble@cfa.harvard.edu)
Subjects: Radio, Supernovae
We report radio observations with the Very Large Array (VLA) of supernova of Type Ib PSN J22460504-1059484 (PS15bgt) (ATel #7787, #7821) in galaxy NGC 7371. It was noted that the supernova has undergone an apparent transition from being of Type IIb to Type Ib.
We observed the position of the supernova with VLA at a mid-time of 2015 July 23.4 UT utilizing two, ~1 GHz sidebands centered at 5 & 7 GHz. We detect a radio source with a flux density of 1.0 +/- 0.03 mJy in the upper sideband (7 GHz) at:
RA=22h 46m 05.06s;
Dec=-10d 59' 48.68"
with an average positional uncertainty of 0.01 arcsec. At the distance of the host galaxy, about 38 Mpc, this corresponds to a spectral luminosity of about 2 x 10^{27} erg/s/Hz.
Followup radio observations are ongoing. Multiband and spectroscopic coverage is encouraged.
We thank the NRAO staff carrying out this observation.
