An improved position for the X-ray source 3U0527-05

White, Glenn J. and Ricketts, Martin J. (1977). An improved position for the X-ray source 3U0527-05. Astrophysical Letters, 18(2) pp. 79–81.

URL: http://adsabs.harvard.edu/abs/1977ApL....18...79W

Abstract

An improved position is reported for the X-ray source 3U 0527-05. The two most likely optical counterparts are θ² Orionis, a binary star system which contains a massive non luminous secondary, and the central regions of the Orion Nebula, M42. Upper limits to the X-ray emission from eight other binary systems which have a massive non luminous secondary component are given, based on analysis of data from the Ariel V X-ray satellite.

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