The eccentric double-lined binary BD — 1° 1004 |
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| Authors: | N Kameswara Rao B N Ashoka C Lloyd C D Pike D J Stickland |
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| Institution: | (1) Indan Institute of Astrophysics, 560034 Bangalore;(2) Rutherford Appleton Laboratory, Chilton, UK;(3) Present address: ISRO Satellite Centre, 560017 Bangalore |
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| Abstract: | A new radial velocity study has been made of the highly eccentric, early-type binary BD -1° 1004 using spectra from the Kavalur
Observatory. All available archival material has also been reexamined. An attempt has been made to correct for line ‘dragging’
by the secondary spectrum to improve the fit of the observed data to the orbital solutions. It is found that an earlier suggestion
of apsidal regression is still possible although ω is probably constant within the errors. There remain problems and inconsistencies
with other orbital elements, in particular K1 and γ |
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| Keywords: | stars spectroscopic binaries stars radial velocities stars individual |
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