Other
Scientific paper
Aug 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977natur.268..607f&link_type=abstract
Nature, vol. 268, Aug. 18, 1977, p. 607, 608.
Other
2
Globular Clusters, Interstellar Matter, Neutron Stars, Stellar Mass Accretion, X Ray Sources, Earth Magnetosphere, White Dwarf Stars
Scientific paper
A possible origin for X-ray bursts associated with Cometary Globule NGC 5367 and other globular clusters is discussed. Accretion of a neutron star or white dwarf at substantial velocity from a dense cloud such as NGC 5367 may entail X-ray heating of matter that creates unstable flows leading to irregular X-ray transmissions. For a given accretion radius, luminosity, and ionization effects are calculated, and the time-scale of the expected X-ray bursts is determined. These calculations indicate that a lone neutron star moving at a velocity greater than 100 km per sec may be responsible for the observed X-ray bursts. Burst phenomena due to other varieties of stars, as well as the possible role of magnetospheric effects in modifying the bursts, are also considered.
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