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The 3U 0900-40 binary system - Orbital elements and massesObservations of the 283-s X-ray pulsations from 3U 0900-40 (Vela X-1) over a 36-day interval have led to a determination of the orbital elements for the X-ray star. These elements yield an X-ray mass function of about 18.5 solar masses and, when combined with the results of optical studies of the companion star HD 77581, give a probable lower limit of 1.4 solar masses to the mass of the X-ray star.
Document ID
19760052422
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/182143
Authors
Rappaport, S. (Massachusetts Inst. of Tech. Cambridge, MA, United States)
Joss, P. C. (Massachusetts Inst. of Tech. Cambridge, MA, United States)
Mcclintock, J. E. (MIT Cambridge, Mass., United States)
Date Acquired
August 8, 2013
Publication Date
June 1, 1976
Publication Information
Publication: Astrophysical Journal
Volume: 206
Subject Category
Astronomy
Accession Number
76A35388
Funding Number(s)
CONTRACT_GRANT: NAS5-11450
Distribution Limits
Public
Copyright
Other

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