DRAFT
2021-01-20 18:28:05
Type: Object/s-Data/Analysis
Bibcode: 2021TNSAN..24....1A
Radio detections of TDEs AT2020ksf and AT2020zso
Authors: Kate D. Alexander (Northwestern U.), Sjoert van Velzen (Leiden U.), James Miller-Jones, Gemma Anderson (Curtin U.), Edo Berger, Yvette Cendes (Harvard U.), Ryan Chornock, Deanne Coppejans (Northwestern U.), Tarraneh Eftekhari (Harvard U.), Suvi Gezari (STScI), Adelle Goodwin (Curtin U.), Aprajita Hajela (Northwestern U.), Tanmoy Laskar (U. of Bath), Andrew MacFadyen (NYU), Raffaella Margutti (Northwestern U.), Dheeraj Pasham (MIT), Enrico Ramirez-Ruiz (UCSC), Richard Saxton (ESA)
Keywords: TDE, Transient, Radio
Abstract:
We report the first radio observations taken as part of a new VLA Large Program dedicated to tidal disruption events (TDEs). We detect faint emission coincident with the TDEs AT2020ksf and AT2020zso.

We report the first radio observations taken as part of a new VLA Large Program dedicated to tidal disruption events (TDEs). Following their public classification, we observed the TDEs AT2020ksf and AT2020zso on 2020 December 21 with NSF’s Karl G. Jansky Very Large Array (VLA). The data were reduced in CASA following standard procedures. We report the detection of faint radio emission coincident with both objects (details in Detected Objects table below). Further observations are planned to determine the variability of this emission, and confirm its association with the TDEs.

Our VLA Large Program began in December 2020 and will continue until 2023. We plan to target new publicly-reported TDEs discovered at z < 0.1, to determine the true prevalence of radio emission in TDEs. We will report new results from this program to the community via ATels, TNS AstroNotes, and on our program website. For collaboration, or to suggest new targets, please contact the program PI (Kate Alexander) or one of the program co-Is.

Show current TNS values
Catalog Name Reported RA Reported DEC Reported Obj-Type Reported Redshift Host Name Host Redshift Date Observed Time Observed (UT) Mean Obs Freq (GHz) FluxDensity (&mu;Jy) Uncertainty (&mu;Jy) Remarks TNS RA TNS DEC TNS Obj-Type TNS Redshift
TNS 2020ksf 21:35:27.260 -18:16:35.54 TDE 2020 Dec 21 20:51:39 6.0 47 10 21:35:27.260 -18:16:35.54
TNS 2020zso 22:22:17.130 -07:15:59.08 TDE 0.061 SDSS J222217.13-071558.9 0.061 2020 Dec 21 22:36:26 15.0 22 7 22:22:17.130 -07:15:59.08 TDE 0.061

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