Detecting Radio Afterglows of Gamma-Ray Bursts with FAST

Abstract

Using the generic hydrodynamic model of Gamma-Ray Burst (GRB) afterglows, we calculate the radio afterglow light curves of low luminosity, high luminosity, failed and standard GRBs in different observational bands of FAST's energy window. The GRBs are assumed to be located at different distances from us. Our results rank the detectability of GRBs in descending order as high luminosity, standard, failed and low luminosity GRBs. We predict that almost all types of radio afterglows except that of low luminosity GRBs could be observed by the large radio telescope as long as the domains of time and frequency are appropriate. It is important to note that FAST can detect relatively weak radio afterglows at a higher frequency of 2.5 GHz for very high redshift up to z=15 or even more. Radio afterglows of low luminosity GRBs can be detected only after the completion of the 2nd phase of FAST. FAST is expected to significantly expand the sample of GRB radio afterglows in the near future.

16 pages, 8 figures (2 new figs added), 1 table; accepted by Research in Astronomy and Astrophysics

References in corpus (10)

• Short-Duration Gamma-Ray Bursts
• The Five-Hundred-Meter Aperture Spherical Radio Telescope (FAST) Project
• A Comprehensive Analysis of Swift/XRT Data: III. Jet Break Candidates in X-ray and Optical Afterglow Lightcurves
• A comprehensive analysis of Swift/XRT data: I. Apparent spectral evolution of GRB X-ray tails
• A Comparison of the Afterglows of Short- and Long-Duration Gamma-Ray Bursts
• Correlations of Prompt and Afterglow Emission in Swift Long and Short Gamma Ray Bursts
• Gamma Ray Bursts in the Swift-Fermi Era
• An Analysis of Chandra Deep Follow-up GRBs: Implications for Off-Axis Jets
• The First Gamma-Ray Bursts in the Universe
• Inferring the emission regions for different kinds of gamma-ray bursts

Cited by in corpus (10)

• Considerations for a Multi-beam Multi-purpose Survey with FAST
• Intensity Distribution Function and Statistical Properties of Fast Radio Bursts
• Long and Short Fast Radio Bursts are Different from Repeating and Non-repeating Transients
• Radio Afterglows from Compact Binary Coalescences: Prospects for Next-Generation Telescopes
• The Statistical Similarity of Repeating and Non-Repeating Fast Radio Bursts
• Gamma Ray Bursts -- A radio perspective
• How are gamma-ray burst radio afterglows populated?
• The Redshift Dependence of the Radio Flux of Gamma-Ray Bursts and Their Host Galaxies
• Diagnosing Circumburst Environment with Multiband Gamma-Ray Burst Radio Afterglows
• Radio Afterglow Rebrightening: Evidence for Multiple Active Phases in Gamma-Ray Burst Central Engines