Photometry of slow X-ray pulsars. III - The GX 17 + 2 candidate

Details Photometry of slow X-ray pulsars. III - The GX 17 + 2 candidate Photometry of slow X-ray pulsars. III - The GX 17 + 2 candidate

Jan 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...219..613m&link_type=abstract

Astrophysical Journal, Part 1, vol. 219, Jan. 15, 1978, p. 613-616.

Astronomy and Astrophysics

Astronomy

17

Pulsars, Stellar Spectrophotometry, X Ray Stars, Binary Stars, Electrophotometers, Radio Sources (Astronomy)

Scientific paper

The optical pulsations from the faint star assumed to be the optical counterpart of the intense X-ray source GX 17 + 2 are analyzed. The X-ray source is of interest because of its associated radio emission, and the 1913 sec periodic modulation of the X-ray flux, which makes the source the slowest X-ray pulsar yet observed. The photoelectric photometry of the star provides no evidence for variability. The analysis indicates that any binary period in GX 17 + 2 is most likely longer than two days.

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