Optical pulsations from HZ Herculis/Hercules X-1 - The self-consistent 35 day picture

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

25

Eclipsing Binary Stars, Light Emission, Stellar Oscillations, X Ray Sources, Mass Transfer, Roche Limit, Stellar Mass Accretion, Stellar Models

Scientific paper

Optical pulsation data on the HZ Her/Her X-1 system obtained with the Lick (61-cm), Crossley (91-cm), and Shane (3.1-m) telescopes since 1974 are combined with published optical and X-ray observations and analyzed. The results are presented in tables, graphs, and diagrams. It is shown that the features of the optical pulsation velocities not explained by the occasional (every 0.81 days for 4 h or more) and predictable influence of the mass-transfer-stream X-ray shadow and the disk-rim structure on the lobe of HZ Her can be described by a single-valued function of the 1.7-day run-centroid orbital phase. The mass of Her X-1 is found to have an upper limit of 1.4 solar mass, and assumptions of its prograde spin, and of aligned corotation and Roche-lobe filling for HZ Her, are verified.

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

Optical pulsations from HZ Herculis/Hercules X-1 - The self-consistent 35 day picture 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 Optical pulsations from HZ Herculis/Hercules X-1 - The self-consistent 35 day picture, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical pulsations from HZ Herculis/Hercules X-1 - The self-consistent 35 day picture will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1802559

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