MeerKAT observations of the new transient MAXI J1848-015
ATel #14432; Evangelia Tremou (Observatoire de Paris), Francesco Carotenuto (CEA, Universite de Paris), Rob Fender (Oxford & UCT), Patrick Woudt (UCT), James Miller-Jones (Curtin), Sara Motta (INAF, OAB) on behalf of the ThunderKAT collaboration
on 2 Mar 2021; 20:23 UT
Credential Certification: Evangelia Tremou (evangelia.tremou@obspm.fr)
Subjects: Radio, Black Hole, Neutron Star, Transient
Referred to by ATel #: 14499
We report on radio observations of the new transient MAXI J1848-015 (ATEL #14282, #14290, #14420, #14424, #14429), taken with the MeerKAT radio telescope as part of the ThunderKAT Large Survey Programme (Fender et al. 2017, arXiv:1711.04132). We observed the source on 2021-02-28 07:29:24.9 - 07:44:20.5 UTC. The observations were taken at a central frequency of 1.284 GHz (L-band) with a total bandwidth of 860 MHz.
We detected a point source with a flux density 2.58 +/- 0.07 mJy at the position: RA(J2000) = 18h 48m 49.824s +/- 0.003s, Dec(J2000) = -01d 29m 49.99s +/- 0.05 arcsec. The source is associated with the core of the star cluster GLIMPSE-C01 (ATEL #14420). Assuming 3.3 kpc the distance of the star cluster GLIMPSE-C01 (Hare et al. 2018, ApJ, 865, 33), the corresponding radio luminosity is 1.67e+29 erg/s. However, we caution that there may be other sources of radio emission in or near the core of this globular cluster. Further multi-wavelength observations are strongly encouraged.
ThunderKAT will run for 5 years and targets X-ray binaries, cataclysmic variables, supernovae and gamma-ray bursts. As part of this programme we perform weekly monitoring observations of all bright, active, southern hemisphere X-ray binaries in the radio band. For further information on this programme please contact Rob Fender and/or Patrick Woudt.
We thank the staff at the South African Radio Astronomy Observatory (SARAO) for scheduling and carrying out these observations. The MeerKAT telescope is operated by the South African Radio Astronomy Observatory (SARAO), which is a facility of the National Research Foundation, an agency of the Department of Science and Innovation.
