Position and pulse profile of the X-ray transient 4U 0115 + 63

Details Position and pulse profile of the X-ray transient 4U 0115 + 63 Position and pulse profile of the X-ray transient 4U 0115 + 63

Jul 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...223l..71j&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 223, July 15, 1978, p. L71-L73.

Astronomy and Astrophysics

Astronomy

29

Early Stars, Position (Location), Pulsars, X Ray Sources, Collimators, Galactic Radiation, Luminous Intensity, Satellite Observation, Spaceborne Astronomy

Scientific paper

The celestial position of the 3.6-s X-ray pulsar, 4U 0115 + 63, has been measured to a precision of 12 arcsec in one dimension with the scanning modulation collimator experiment on HEAO 1. This result, together with a position obtained with SAS 3, has led to the identification of an early-type star as the optical counterpart. An X-ray luminosity of approximately 3 by 10 to the 37th power erg/s (3-13 keV) is inferred from the observed flux of about 30% that of the Crab and an estimated distance of 5 kpc. The pulse profile over the energy range 3-13 keV is similar to that of Cen X-3.

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