LMC X-1, X-2, and X-3 - Precise positions from the HEAO 1 modulation collimator

Details LMC X-1, X-2, and X-3 - Precise positions from the HEAO 1 modulation collimator LMC X-1, X-2, and X-3 - Precise positions from the HEAO 1 modulation collimator

Oct 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...225l..59j&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 225, Oct. 15, 1978, p. L59-L62.

Astronomy and Astrophysics

Astronomy

14

Magellanic Clouds, Position Errors, Satellite-Borne Instruments, Spaceborne Astronomy, X Ray Sources, Collimators, Heao 1, Nebulae, Supergiant Stars, X Ray Spectra

Scientific paper

Precise (to about 20 arcsec) positions are reported for the Large Magellanic Cloud X-ray sources LMC X-1, X-2, and X-3, determined with the HEAO 1 scanning modulation collimator. The error regions for LMC X-1 and X-3 contain, respectively, the B5 supergiant R148 and a possibly variable B III-IV star. Spectra taken of the latter confirm the spectral type and show that it is a member of the LMC. A search for a previously reported extended component of LMC X-1 yields upper limits which exclude it.

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