Late-Time Radio Re-Brightening of Gamma-Ray Burst Afterglows: Evidence for Double-Sided Jets

Abstract

The central engine of gamma-ray bursts (GRBs) is believed to eject double-sided ultra-relativistic jets. For an observed GRB, one of the twin jets should point toward us, and is responsible for the prompt gamma-ray and subsequent afterglow emission. We consider in this Letter the other receding jet, which will give rise to late-time radio re-brightening (RRB) when it becomes non-relativistic (NR) and radiative isotropic. The RRB peaks at a time $5t_{NR}=2(E_{j,51}/n{)}^{1/3}$ yr after the GRB, where $t_{NR}$ is the observed NR timescale for the preceding jet, $E_j$ is the jet energy and $n$ is the ambient medium density. The peak flux is comparable to the preceding-jet emission at $t_{NR}$. We expect the RRB of GRB 030329 1.7 yr after the burst with a flux $\sim 0.6$ mJy at 15 GHz. The cases of GRBs 970508 and 980703 have also been discussed. The detection of RRB, which needs dense monitoring campaign even a few years after a GRB, will be the direct evidence for the existence of double-sided jets in GRBs, and prove the black hole-disk system formation in the cores of progenitors.

arXiv comment5 pages, 1 figure, minor changes, ApJL accepted

References in corpus (38)

• A very energetic supernova associated with the gamma-ray burst of 29 March 2003
• Beaming in Gamma-Ray Bursts: Evidence for a Standard Energy Reservoir
• Jets in GRBs
• Gamma-Ray Bursts: Progress, Problems & Prospects
• The Dynamics and Light Curves of Beamed Gamma Ray Burst Afterglows
• Theories of Gamma-Ray Bursts
• Wind Interaction Models for Gamma-Ray Burst Afterglows: The Case for Two Types of Progenitors
• How to Tell a Jet from a Balloon: A Proposed Test for Beaming in Gamma Ray Bursts
• Afterglow lightcurves, viewing angle and the jet structure of gamma-ray bursts
• Afterglow Emission from Naked Gamma-Ray Bursts
• The afterglow, the redshift, and the extreme energetics of the gamma-ray burst 990123
• Off-Axis Afterglow Emission from Jetted Gamma-Ray Bursts
• Viewing Angle and Environment Effects in GRB: Sources of Afterglow Diversity
• A Common Origin for Cosmic Explosions Inferred from Fireball Calorimetry
• Gamma-ray burst beaming: a universal configuration with a standard energy reservoir?
• Fundamental Physical Parameters of Collimated Gamma-Ray Burst Afterglows
• A 450-day light curve of the radio afterglow of GRB 970508: Fireball calorimetry
• Gamma-Ray Burst Afterglows: Effects of Radiative Corrections and Nonuniformity of the Surrounding Medium
• BVRI Observations of the Optical Afterglow of GRB 990510
• The Angular Size and Proper Motion of the Afterglow of GRB 030329
• The Variable Light Curve of GRB 030329: The Case for Refreshed Shocks
• Constraining the Structure of GRB Jets Through the Afterglow Light Curves
• The bright optical afterglow of the nearby gamma-ray burst of 29 March 2003
• The Afterglow of GRB 990123 and a Dense Medium
• Towards a Model for the Progenitors of Gamma-Ray Bursts
• The Host Galaxy of GRB980703 at Radio Wavelengths - a Nuclear Starburst in a ULIRG
• GRB Afterglows from Anisotropic Jets
• Millimeter Observations of GRB 030329: Continued Evidence for a Two-Component Jet
• The nature of GRB980425 and the search for off-axis GRB signatures in nearby type Ib/c supernovae emission
• The Broadband Afterglow of GRB980703
• Radio Imaging of GRB Jets in Nearby Supernovae
• A Numerical Gamma-Ray Burst Simulation Using Three-Dimensional Relativistic Hydrodynamics: The Transition from Spherical to Jet-like Expansion
• The difficulty in using orphan afterglows to measure gamma-ray burst beaming
• Wind Interaction Models for the Afterglows of GRB 991208 and GRB 000301C
• The apparent size of GRB afterglows as a test of the Fireball model
• Late evolution of the X-ray afterglow of GRB 030329
• A Possible Explanation of the Radio Afterglow of GRB980519: The Dense Medium Effect
• The X-ray, optical and radio evolution of the GRB030329 afterglow and the associated SN2003dh

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• The Dynamics and Afterglow Radiation of Gamma-Ray Bursts. I. Constant Density Medium
• A multi-wavelength investigation of the radio-loud supernova PTF11qcj and its circumstellar environment
• Detailed study of the GRB 030329 radio afterglow deep into the non-relativistic phase
• A Spectacular Radio Flare from XRF 050416a at 40 days and Implications for the Nature of X-ray Flashes
• Stirring the Embers: High Sensitivity VLBI Observations of GRB030329
• Late Time Observations of the Afterglow and Environment of GRB 030329
• A Reverse Shock in GRB 181201A
• No flares from Gamma-Ray Burst afterglow blast waves encountering sudden circumburst density change
• VLBI and Archival VLA and WSRT Observations of the GRB 030329 Radio Afterglow
• Late-Time Afterglow from Double-Sided Structured Jets: Application to GRB 170817A
• On the afterglow from the receding jet of gamma-ray burst
• Multi-Peaked Non-Thermal Light Curves from Magnetar-Powered Gamma-Ray Bursts
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