Centimeter-wavelength upper limits on SN 2024ggi with the JVLA and the uGMRT
ATel #16612; Poonam Chandra (NRAO), Keiichi Maeda (Kyoto U), A. J. Nayana (Berkeley), Roger A. Chevalier (U Virginia), Stuart Ryder (Macquarie U), Anna Y. Q. Ho (Cornell), and Alak K. Ray (HBCSE)
on 4 May 2024; 04:21 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Poonam Chandra (pchandra@nrao.edu)
Subjects: Radio, Supernovae
Referred to by ATel #: 16616
We observed SN 2024ggi (TNS Astronomical Transient Report # 207398, and TNS Classification Report # 16878) with Karl G. Jansky Very Large Array (JVLA) in bands K (18-26.5 GHz) and X (8-12 GHz) on 2024-Apr-25.14 UT and with the Upgraded Giant Metrewave Radio Telescope (uGMRT) in band 5 (1000-1450 MHz) on 2024-Apr-26.71 UT.
The supernova is undetected at these frequencies. The 3-sigma upper limits at the supernova position in the JVLA K and X bands are 48 uJy and 60 uJy, respectively. The 3-sigma upper limit at the uGMRT band 5 is 81 uJy.
More observations are planned.
The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. We thank the uGMRT staff for scheduling and conducting the observations. The uGMRT is run by the National Centre for Radio Astrophysics, of the Tata Institute of Fundamental Research.
