Discovery of the optical counterpart of the transient X-ray burster Centaurus X-4

Details Discovery of the optical counterpart of the transient X-ray burster Centaurus X-4 Discovery of the optical counterpart of the transient X-ray burster Centaurus X-4

Mar 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...236l..55c&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 236, Mar. 1, 1980, p. L55-L59.

Astronomy and Astrophysics

Astrophysics

45

Binary Stars, Novae, Optical Emission Spectroscopy, X Ray Sources, Balmer Series, Emission Spectra, Interstellar Extinction, Periodic Variations, Spectrum Analysis, Stellar Mass Accretion

Scientific paper

The paper deals with the discovery and subsequent study of the optical counterpart to an X-ray nova which is almost certainly the historical transient Centaurus X-4, first discovered in 1969 and then dormant for the past decade. It is shown that Cen X-4 is a clear example of a soft, transient X-ray burster. The most important consequence of the connection between bursters and soft transients is the support it gives to the hypothesis that bursters are accreting neutron stars in binary systems. The observations support the hypothesis that at least some of the light comes from an accretion disk, and that X-ray heating plays an important role in the optical emission.

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