Optical photometry and spectroscopy of the X-ray pulsar 1E 1145.1-6141

Details Optical photometry and spectroscopy of the X-ray pulsar 1E 1145.1-6141 Optical photometry and spectroscopy of the X-ray pulsar 1E 1145.1-6141

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982mnras.201..171d&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 201, Oct. 1982, p. 171-178.

Astronomy and Astrophysics

Astronomy

7

Orbital Elements, Pulsars, Stellar Spectra, Visual Photometry, X Ray Sources, Astronomical Spectroscopy, H Alpha Line, Interstellar Extinction, Stellar Luminosity

Scientific paper

High-resolution spectra of the optical counterpart of the X-ray pulsar 1E 1145.1-6141 have been obtained. The star is found to be of spectral type B2Iae with a broad H-alpha emission feature and variable C, N, O, and Si lines. Multicolour photometry is also presented, showing no variations on a time-scale of days although the object appears about 1 mag fainter than an observation two months previously. A distance of about 8.2 kpc is obtained for the system and orbital parameters estimated.

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