AMI-LA 15.5 GHz observation of the TDE candidate AT2018hyz
ATel #12218; Assaf Horesh, Itai Sfaradi (Hebrew University of Jerusalem), Joe Bright, Rob Fender (University of Oxford)
on 15 Nov 2018; 18:20 UT
Credential Certification: Assaf Horesh (assafh@mail.huji.ac.il)
Subjects: Radio, Transient, Tidal Disruption Event
Referred to by ATel #: 15307
We observed the field of the TDE candidate AT2018hyz (ASASSN-18zj; ATel #12194, ATel #12198, TNS Report No. 24133) with the Arcminute Microkelvin Imager Large Array (AMI-LA; Zwart et al. 2008; Hickish et al. 2018) at 15.5 GHz on 2018-11-15.26 for 4 hours.
We do not detect a source at the phase center, and we set a 3-sigma upper limit of ~85 micro Jy.
The custom pipeline REDUCE_DC (e.g. Perrott et al. 2015) was used to calibrate and flag the data, with 3C286 as the absolute flux calibrator and J1008+0621 as the interleaved phase calibrator.
We plan to continue monitoring this source and would like to thank the MRAO staff for carrying out these observations.