Gamma-ray lines from accreting neutron stars

Details Gamma-ray lines from accreting neutron stars Gamma-ray lines from accreting neutron stars

Sep 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...240..642b&link_type=abstract

Astrophysical Journal, Part 1, vol. 240, Sept. 1, 1980, p. 642-647.

Astronomy and Astrophysics

Astronomy

10

Astronomical Spectroscopy, Gamma Ray Astronomy, Line Spectra, Neutron Stars, Stellar Mass Accretion, Stellar Spectra, Binary Stars, Deuterium, Positron Annihilation, X Ray Sources

Scientific paper

The detection of gamma-ray lines produced near the surface of accreting neutron stars can serve to test the strong, weak, electromagnetic, and gravitational interactions under extreme physical conditions unavailable in terrestrial laboratories. Gamma-ray line fluxes to be expected from (known) accreting neutron stars in binary X-ray sources were computed. The strongest lines are most likely to be the 2.22 MeV deuterium formation line and the 0.511 MeV positron annihilation line, though gamma-ray lines from excited states of carbon, oxygen, and other light nuclei may also contribute observable lines.

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