Properties of the massive X-ray binary 4U 1700 - 37 = HD 153919

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

42

Massive Stars, Neutron Stars, O Stars, X Ray Binaries, Light Curve, Stellar Evolution, Stellar Mass Accretion, Stellar Spectrophotometry, Stellar Winds

Scientific paper

The system parameters for the massive X-ray binary 4U 1700 - 37 are reexamined in the light of modern spectroscopic theory and new UV and X-ray data. The system is composed of HD 153919, an O6f star having a stronger wind, and an accreting neutron star. Revised parameters for the Of component are derived which are in accord with the parameters of single Of stars, which resolves the problem that 'the O star is undermassive by a factor of 2' formulated by Conti (1978). The ratio of the terminal velocity of the wind to the photospheric escape velocity agrees with those of O stars. The discrepancy between the values of the wind acceleration parameter, derived from X-ray and UV data, is resolved. The acceleration of the wind is similar to that of single OB star winds. It is suggested that the supernova explosion producing the neutron star in 4U 1700 - 37 occurred over a million years ago when HD 153919 was still on the main sequence.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Properties of the massive X-ray binary 4U 1700 - 37 = HD 153919 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Properties of the massive X-ray binary 4U 1700 - 37 = HD 153919, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Properties of the massive X-ray binary 4U 1700 - 37 = HD 153919 will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1215132

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.