2025ApJ...993...55C

Query : 2025ApJ...993...55C

2025ApJ...993...55C - Astrophys. J., 993, 55 (2025/November-1)

CHIME/FRB Outriggers: Design Overview.

CHIME/FRB COLLABORATION, AMIRI M., ANDERSEN B.C., ANDREW S., BANDURA K., BHARDWAJ M., BHOPI K., BIDULA V., BOYLE P.J., BRAR C., CARLSON M., CASSANELLI T., CASSITY A., CHATTERJEE S., CLICHE J.-F., CURTIN A.P., DARLINGER R., DEBOER D.R., DOBBS M., DONG F.A., EADIE G., FONSECA E., GAENSLER B.M., GUSINSKAIA N., HALPERN M., HENDRICKSEN I., HESSELS J., JOSEPH R.C., KACZMAREK J., KASPI V.M., KHAIRY K., LANDECKER T.L., LANMAN A.E., LAU A.W.K., LAZDA M., LEUNG C., MAIN R.A., MASUI K.W., MCKINVEN R., MENA-PARRA J., MEYERS B.W., MICHILLI D., MILUTINOVIC N., NIMMO K., NOBLE G., PANDHI A., PEARLMAN A.B., PETERSON J.B., PETROFF E., PLEUNIS Z., POLLAK A.W., RAFIEI-RAVANDI M., RENARD A., SAMMONS M.W., SAND K.R., SANGHAVI P., SCHOLZ P., SHAH V., SHIN K., SIEGEL S.R., SIEMION A., SIEVERS J.L., SMITH K., SPEAR D., STAIRS I., VANDERLINDE K., WANG H., WILLIS J.P. and ZEGMOTT T.J.

Abstract (from CDS):

The Canadian Hydrogen Intensity Mapping Experiment (CHIME) has emerged as the world's premier facility for studying fast radio bursts (FRBs) through its fast transient search backend CHIME/FRB. The CHIME/FRB Outriggers project will augment this high detection rate of 2-3 FRBs per day with the ability to precisely localize them using very long baseline interferometry (VLBI). Using three strategically located stations in North America and deploying recently developed synoptic VLBI observing techniques, the Outriggers will provide ∼50 mas localization precision for the majority of detected FRBs. This paper presents an overview of the design and implementation of the Outriggers, covering their geographic distribution, structural design, and observational capabilities. We detail the scientific objectives driving the project, including the characterization of FRB populations, host galaxy demographics, and the use of FRBs as cosmological probes. We also discuss the calibration strategies available to mitigate ionospheric and instrumental effects, ensuring high-precision localization. With two stations currently in science operations, and the third in commissioning, the CHIME/FRB Outriggers project is poised to become a cornerstone of the FRB field, offering unprecedented insights into this enigmatic cosmic phenomenon.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Radio transient sources - Radio bursts - Very long baseline interferometers - Transit instruments

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 FRB 20180916B rB 01 58 00.750 +65 43 00.30           ~ 457 0
2 FRB 20181119D rB 05 31 58.6980 +33 08 52.588           ~ 933 0
3 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
4 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
5 FRB 20200120E rB 09 57 56.7 +68 49 32           ~ 219 0

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