A Demonstration of Extremely Low Latency $\gamma$-ray, X-Ray & UV Follow-Up of a Millisecond Radio Transient
| Autor: | 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. |
|---|---|
| Rok vydání: | 2020 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | 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 |
| Databáze: | arXiv |
| Externí odkaz: |
|