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Gamma-ray Burst Afterglow with Continuous Energy Injection: Signature of a Highly-Magnetized Millisecond Pulsar

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arxiv astro-ph/0011133 v2 pith:QQCJQTEK submitted 2000-11-07 astro-ph

Bing Zhang , Peter Meszaros (Astronomy & Astrophysics Dept. , Pennsylvania State University) This is my paper · ORCID
classification astro-ph
keywords pulsarafterglowmillisecondburstengineachromaticbumpcentral
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We investigate the consequences of a continuously injecting central engine on the gamma-ray burst afterglow emission, focusing more specifically on a highly-magnetized millisecond pulsar engine. For initial pulsar parameters within a certain region of the parameter space, the afterglow lightcurves are predicted to show a distinctive achromatic bump feature, the onset and duration of which range from minutes to months, depending on the pulsar and the fireball parameters. The detection of or upper limits on such features would provide constraints on the burst progenitor and on magnetar-like central engine models. An achromatic bump such as that in GRB 000301C afterglow may be caused by a millisecond pulsar with P0=3.4 millisecond and Bp=2.7e14 Gauss.

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Forward citations

Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Detectability of Gravitational-wave counterparts of EP-FXTs observed during the O4b LIGO-Virgo-KAGRA Observing Run

    astro-ph.HE 2026-07 conditional novelty 6.0 of 10

    No gravitational-wave counterpart is statistically associated with any of 47 Einstein Probe fast X-ray transients in the O4b run; 90% exclusion distances of ~178 Mpc (BNS) and ~349 Mpc (NSBH) disfavor nearby compact-b...

  2. Gamma-ray emission from decays of boosted nuclei in protomagnetar jets

    astro-ph.HE 2025-02 conditional novelty 6.0 of 10

    Doppler-boosted, time-dilated radioactive decay lines from nuclei in protomagnetar jets could be detected by INTEGRAL/SPI and e-ASTROGAM from a supernova at 10 kpc.

  3. A Log-Uniform Initial Magnetic Field Distribution Explains Pulsar and Magnetar Populations through Magnetic Inclination Alignment

    astro-ph.HE 2026-06 unverdicted novelty 5.0 of 10

    Magnetic inclination alignment with timescale proportional to B to the minus two suppresses observed numbers of strong-field neutron stars, unifying pulsars and magnetars under one log-uniform initial B distribution.

  4. On the Duration of Gamma-Ray Bursts

    astro-ph.HE 2024-12 conditional novelty 4.0 of 10

    GRB duration is shaped by the progenitor, the central engine, the emitter, and geometry, so short versus long duration is not a reliable direct indicator of what exploded or merged.

  5. GRB 250424A: A Case Study of Energy Injection with Multiwavelength Observations

    astro-ph.HE 2026-06 unverdicted novelty 2.0 of 10

    GRB 250424A afterglow shows simultaneous shallow decay in X-ray and optical bands modeled as continuous energy injection (q≈0.34) into a forward shock in constant-density medium, with E_K,iso ≈5.5×10^52 erg and no cle...

  6. A review of long lasting activities of the central engine of gamma-ray bursts

    astro-ph.HE 2025-01 unverdicted novelty 1.0 of 10

    A review of ultra-long gamma-ray bursts and X-ray plateau phases as evidence that the central engine keeps working long after the first flash.

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