DRAFT
2023-11-21 01:14:38
Type: Object/s-Data/Analysis
Bibcode: 2023TNSAN.317....1H
VLA X-band detection of AT2023vth
Source Group: ZTF
Keywords: Radio
Abstract:
We report the detection of 10 GHz radio emission coincident with the luminous fast blue optical transient AT2023vth at z=0.0747.
On UT 2023 November 17 the Very Large Array (VLA) observed the position of AT2023vth, a luminous fast blue optical transient at z=0.0747 (AstroNote #2023-114, AstroNote #2023-305). The X-band image RMS was 5 uJy in 33 minutes of on-source time.
A point source was detected at the position of AT2023vth with a flux density of 145 uJy in X-band (10 GHz), corresponding to a luminosity of 2E28 erg/s/Hz at 36 days post-discovery. This is similar to the radio luminosity of AT2018cow at a similar frequency and epoch (Margutti et al. 2019, ApJ, 872, 18).
Further radio observations are planned. We thank the VLA staff for rapidly scheduling and executing these observations.
| Catalog | Name | Reported RA | Reported DEC | Reported Obj-Type | Reported Redshift | Host Name | Host Redshift | Remarks | TNS RA | TNS DEC | TNS Obj-Type | TNS Redshift |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TNS | 2023vth | 17:56:34.401 | +08:02:37.32 | 17:56:34.401 | +08:02:37.32 | FBOT | 0.0747 | |||||
| TNS | 2018cow | 16:16:00.220 | +22:16:04.91 | SN Ic-BL | 0 | 16:16:00.220 | +22:16:04.91 | SN Ic-BL | 0.014 |
Comments