| Title: |
A Demonstration of Extremely Low Latency $\gamma$-ray, X-Ray & UV Follow-Up of a Millisecond Radio Transient |
| Authors: |
Tohuvavohu, Aaron; Law, Casey J.; Kennea, Jamie A.; Adams, Elizabeth A. K.; Aggarwal, Kshitij; Bower, Geoffrey; Burke-Spolaor, Sarah; Butler, Bryan J.; Cannon, John M.; Cenko, S. Bradley; DeLaunay, James; Demorest, Paul; Drout, Maria R.; Evans, Philip A.; Hirschauer, Alec S.; Lazio, T. J. W.; Linford, Justin; Marshall, Francis E.; McQuinn, K.; Petroff, Emily; Skillman, Evan D. |
| Publication Year: |
2020 |
| Collection: |
Astrophysics |
| Subject Terms: |
Astrophysics - High Energy Astrophysical Phenomena; Astrophysics - Instrumentation and Methods for Astrophysics |
| Description: |
We report results of a novel high-energy follow-up observation of a potential Fast Radio Burst. The radio burst was detected by VLA/realfast and followed-up by the Neil Gehrels Swift Observatory in very low latency utilizing new operational capabilities of Swift (arXiv:2005.01751), with pointed soft X-ray and UV observations beginning at T0+32 minutes, and hard X-ray/gamma-ray event data saved around T0. These observations are $>10$x faster than previous X-ray/UV follow-up of any radio transient to date. No emission is seen coincident with the FRB candidate at T0, with a 0.2s fluence $5\sigma$ upper limit of $1.35\times10^{-8}$ erg cm$^{-2}$ (14-195 keV) for a SGR 1935+2154-like flare, nor at T0+32 minutes down to $3\sigma$ upper limits of 22.18 AB mag in UVOT u band, and $3.33\times10^{-13}$ erg cm$^{-2}$ s$^{-1}$ from 0.3-10 keV for the 2 ks observation. The candidate FRB alone is not significant enough to be considered astrophysical, so this note serves as a technical demonstration. These new Swift operational capabilities will allow future FRB detections to be followed up with Swift at even lower latencies than demonstrated here: 15-20 minutes should be regularly achievable, and 5-10 minutes occasionally achievable. We encourage FRB detecting facilities to release alerts in low latency to enable this science.; Comment: Technical note and capability update for the community. We encourage low latency FRB alerts from relevant facilities to enable this science |
| Document Type: |
Working Paper |
| Access URL: |
http://arxiv.org/abs/2006.04550 |
| Accession Number: |
edsarx.2006.04550 |
| Database: |
arXiv |