[vsnet-grb-info 22154] LIGO/Virgo S190426c: STARE2 simultaneous L-band radio observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  24253
SUBJECT: LIGO/Virgo S190426c: STARE2 simultaneous L-band radio observations
DATE:    19/04/27 00:07:51 GMT
FROM:    Christopher Bochenek at California Institute of Technology  <cbochenek at astro.caltech.edu>

C. D. Bochenek (Caltech), S. R. Kulkarni (Caltech), D. McKenna (Caltech), K. Belov (JPL), V. Ravi (Harvard, Caltech), T. Callister (Caltech)

STARE2 is an all-sky instrument located at the Owens Valley Radio Observatory (OVRO) and the Goldstone Deep Space Communications Complex designed to search for fast radio transients. STARE2 is sensitive to millisecond duration bursts of radio emission above 157 kJy, for a burst at zenith. STARE2 regularly sees type IIIdm bursts from the Sun.

No candidate events were found within 3 hours of the LIGO/Virgo S190426c.

Observing frequency: 1280-1530 MHz
Time resolution: 65.536 microseconds
Maximum timescale STARE2 is sensitive to: 34 ms
Frequency resolution: 122.07 kHz
Dispersion measure search range: 5 pc cm^-3 - 3000 pc cm^-3

A map of our upper limit as a function of RA and DEC can be found at: http://www.astro.caltech.edu/~cbochenek/LIGO_VIRGO_S190426c_limits.png


The sky at OVRO at the time of the event contains 76% of the LIGO localization region.