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Determine whether double compact object mergers can explain the observed properties, host galaxy types, and afterglow characteristics of short gamma-ray bursts.

September 8, 2006The Astrophysical JournalOpen Access

A Study of Compact Object Mergers as Short Gamma‐Ray Burst Progenitors

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Determine whether double compact object mergers can explain the observed properties, host galaxy types, and afterglow characteristics of short gamma-ray bursts.
Applied the updated StarTrack population synthesis code to track the evolution and merger rates of double neutron star and black hole-neutron star systems.
Calculated formation rates, delay times to merger, and predicted spatial merger locations and afterglow properties across different galaxy morphologies.
Compared model outputs with observational data from HETE-2 and Swift detections of short gamma-ray burst afterglows and hosts.
Double compact object merger models successfully reproduce short gamma-ray bursts in both star-forming galaxies (GRB 050709 and GRB 051221A) and old elliptical hosts (GRB 050724 and GRB 050509B).
Predicted merger sites and afterglow features match satellite observations, providing evolutionary constraints on compact binary formation.

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Implication

Population synthesis modeling demonstrates compact object mergers reproduce short gamma-ray bursts across diverse host galaxies, indicating binaries drive events in both young and old stellar...

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A 2006 study studied this question.

synapsesocial.com/papers/6a8d09abe32d502f99099d4d https://doi.org/10.1086/505169

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Implication

Population synthesis modeling demonstrates compact object mergers reproduce short gamma-ray bursts across diverse host galaxies, indicating binaries drive events in both young and old stellar...

A Study of Compact Object Mergers as Short Gamma‐Ray Burst Progenitors

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Implication

Cite This Study

A Study of Compact Object Mergers as Short Gamma‐Ray Burst Progenitors

Key Points

Discussion

Implication

Cite This Study

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