Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.258..819s&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 258, no. 4, p. 819-827.
Astronomy and Astrophysics
Astronomy
6
A Stars, Binary Stars, Line Spectra, Orbital Elements, Peculiar Stars, Stellar Orbits, Charge Coupled Devices, Radial Velocity, Stellar Spectrophotometry
Scientific paper
Improved spectroscopic orbital elements of the single-line Am binary HD 434 are presented, and cover large gaps in the radial velocity curve obtained earlier by Hube and Gulliver (1985). The MK morphology of the spectrum of HD 434 is examined, and the classification of its metallic line types in the violet and blue regions, along with its revised K- and H-line spectral types, are given for the first time. The strontium anomaly in its spectrum is discussed. 41 Sex A is found to be a prototype of an Am star exhibiting transitional characteristics, forming an evolutionary link between Ap and Am groups of CP stars. Its spectroscopic orbital elements are confirmed using our own velocities. The MK morphology of its spectrum and its spectral line behavior, especially that of the Sr II 4077 line, are briefly discussed.
Abhyankar K. D.
Sreedhar Rao S.
No associations
LandOfFree
Spectroscopic study of the strontium AM binaries HD 434 and 41 Sex A 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 Spectroscopic study of the strontium AM binaries HD 434 and 41 Sex A, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectroscopic study of the strontium AM binaries HD 434 and 41 Sex A will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1870715