On the origin of the March 5, 1979 gamma ray transient: A vibrating neutron star in the Large Magellanic Cloud

Details On the origin of the March 5, 1979 gamma ray transient: A vibrating neutron star in the Large Magellanic Cloud On the origin of the March 5, 1979 gamma ray transient: A vibrating neutron star in the Large Magellanic Cloud

Jul 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980oomf.book.....r&link_type=abstract

NASA Tech. Memo., NASA-TM--80738, 13 p.

Astronomy and Astrophysics

Astronomy

1

Bursts, Gamma Ray Astronomy, Gamma Rays, Magellanic Clouds, Neutron Stars, Annihilation Reactions, Electron-Positron Pairs, Pair Production, Red Shift, Stellar Gravitation, Stellar Magnetic Fields, Supernova Remnants, Vibration

Scientific paper

It is proposed that a vibrating neutron star in the Large Magellanic Cloud is the source of the March 5 transient. Neutron star vibrations transport energy rapidly to the surface, heat the atmosphere by wave dissipation, and decay by gravitational radiation reaction. The electromagnetic emission arises from e(+)-e(-) pairs which cool and annihilate in the strong magnetic field of the neutron star. The field also confines the pairs, and this allows the production of the redshifted annihilation feature observed in the data. The redshift implies a gravitational radiation damping time which agrees with the 0.15 second duration of the impulsive phase of the event. Thus, the March 5 transient may be both the first detection of a vibrating neutron star and indirect evidence for gravitational radiation.

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