LIGO/Virgo S191216ap: No radio candidates so far in the VLA/JAGWAR galaxy targeted search
Abstract
We observed the 9 GLADE galaxies (Singer et al. GCN 26479) consistent with the HAWC/gamma-ray (Martinez-Castellanos et al. GCN 26472) and S191216ap/BAYESTAR localization volume (Piotrzkowski et al. GCN 26454) with the VLA between 4-8 GHz on 2019 Dec 18-19. No point-like sources are detected within 50 kpc of any of the galaxies down to 20 uJy (3sigma), except many of the galaxies have radio sources coincident with their nuclei (see table below). Follow up VLA observations are planned. | RAJ2000 | DEJ2000 | Dist | Flux_6GHz| Comments | deg | deg | Mpc | uJy | | ---------- | --------- | ----- | -------- | -------------------- | 323.482422 | +5.279632 | 274.4 | 820 | unresolved (12" beam) | 323.056030 | +4.832057 | 219.1 | 370 | marginally resolved | 322.921936 | +5.503483 | 232.2 | 80 | resolved | 322.838806 | +5.255421 | 179.3 | 140 | unresolved | 322.821228 | +5.553754 | 338.7 | 180 | unresolved ** | 322.749084 | +5.108610 | 330.8 | 155 | unresolved ** | 323.173767 | +4.467985 | 292.5 | <20 | | 322.906006 | +5.850705 | 323.1 | <15 | | 323.034882 | +4.482058 | 340.7 | <20 | ** (**) We note that only these 3 galaxies (Ahumada et al. GCN 26507) lie within the 95% 3D credible volume in the latest LALInference map (Piotrzkowski et al. GCN 26505) for S191216ap. We thank the NRAO staff for scheduling and executing these observations.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- December 2019
- Bibcode:
- 2019GCN.26530....1M