Radio detection of the recurrent nova V3890 Sgr with MeerKAT at 1.28 GHz
ATel #13089; M. M. Nyamai (UCT), P. A. Woudt (UCT), V. A. R. M. Ribeiro (UA/IT), L. Chomiuk (MSU)
on 8 Sep 2019; 21:43 UT
Credential Certification: Laura Chomiuk (chomiuk@pa.msu.edu)
The recurrent nova V3890 Sgr was discovered in eruption on 2019-08-27.9 UT by A. Pereira. Here, we report observations of the nova obtained with the MeerKAT radio telescope at 1.28 GHz, between 2019-08-29.8 UTC and 2019-09-03.8 UTC (1.9--7.7 days after the optical discovery). Each
observation lasted for 30 minutes on target. Between days 1.9 to 5.7, no radio emission was detected at the position of the nova, placing 3 sigma upper limits of 0.2 mJy. Subsequently, V3890 Sgr was detected with flux densities of 0.69 +/- 0.03 mJy on 2019-09-02.8 (day 6.7) and 3.16 +/- 0.02 mJy on 2019-09-03.8 (day 7.7). The errors quoted only include statistical errors, and not systematic uncertainties. Radio monitoring of V3890 Sgr with MeerKAT is ongoing.
We would like to thank the staff at the South African Radio Astronomy Observatory for scheduling and obtaining these observations.
