STARE2: Detecting Fast Radio Bursts in the Milky Way

Abstract

There are several unexplored regions of the short-duration radio transient phase space. One such unexplored region is the luminosity gap between giant pulses (from pulsars) and cosmologically located fast radio bursts (FRBs). The Survey for Transient Astronomical Radio Emission 2 (STARE2) is a search for such transients out to 7 Mpc. STARE2 has a field of view of 3.6 steradians and is sensitive to one-millisecond transients above $\sim 300$ kJy. With a two-station system we have detected and localized a solar burst, demonstrating that the pilot system is capable of detecting short duration radio transients. We found no convincing transients with duration between 65 $\mu$s and 34 ms in 200 days of observing, limiting with 95% confidence the all-sky rate of transients above $\sim 300$ kJy to $<40$ $\mathrm{sk}{\mathrm{y}}^{-1}\mathrm{yea}{\mathrm{r}}^{-1}$. If the luminosity function of FRBs could be extrapolated down to 300 kJy for a distance of 10 kpc, then one would expect the rate to be $\sim 2$ $\mathrm{sk}{\mathrm{y}}^{-1}\mathrm{yea}{\mathrm{r}}^{-1}$.

7 pages, 9 figures, accepted to PASP

References in corpus (11)

• A bright millisecond radio burst of extragalactic origin
• UV Star Formation Rates in the Local Universe
• The direct localization of a fast radio burst and its host
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• A Multi-telescope Campaign on FRB 121102: Implications for the FRB Population
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Cited by in corpus (8)

• Implications of a "Fast Radio Burst" from a Galactic Magnetar
• Fast radio bursts to be detected with the Square Kilometre Array
• Gravitational Lensing in Modified Gravity: A case study for Fast Radio Bursts
• Estimating fast transient detection pipeline efficiencies at UTMOST via real-time injection of mock FRBs
• Testing afterglow models of FRB 200428 with early post-burst observations of SGR 1935+2154
• Constraining Fundamental Constants with Fast Radio Bursts: Unveiling the Role of Energy Scale
• A FRB in a Globular Cluster: Why Is This Neutron Star Different From (Almost) All Other Neutron Stars?
• Detecting Fast Radio Bursts in the Milky Way