Nova Ophiuchi 1977 - an X-ray nova

Details Nova Ophiuchi 1977 - an X-ray nova Nova Ophiuchi 1977 - an X-ray nova

Apr 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...221l..63g&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 221, Apr. 15, 1978, p. L63-L67.

Astronomy and Astrophysics

Astronomy

32

Binary Stars, Novae, Spaceborne Astronomy, X Ray Sources, Collimators, Emission Spectra, Heao, Position (Location), Sky Surveys (Astronomy)

Scientific paper

This letter reports the observation by the HEAO 1 satellite experiments of the X-ray nova in Ophiuchus discovered by Kaluzienski and Holt (1977), which is designated H1705-25. The SAO/MIT scanning modulation collimator has been used in conjunction with the NRL large-area sky survey to give two possible positions for the X-ray nova, each having errors of 0.3 by 1.8 arcmin. The discovery of a 16.5-magnitude optical nova (Nova Ophiuchi 1977) in one of the error boxes is reported, and the X-ray source is identified with the optical nova. The object is classified as being of the A0620-00 and A1524-61 type; i.e., a low-mass binary system.

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