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    • Li Lin-sen

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    • Volume 25 Issue 3-4 September 2004 pp 203-211

      An apparent descriptive method for judging the synchronization of rotation of binary stars

      Li Lin-sen

      More Details Abstract Fulltext PDF

      The problem of the synchronous rotation of binary stars is judged by using a synchronous parameterQ introduced in an apparent descriptive method. The synchronous parameterQ is defined as the ratio of the rotational period to the orbital period. The author suggests several apparent phenomenal descriptive methods for judging the synchronization of rotation of binary stars. The first method is applicable when the orbital inclination is well-known. The synchronous parameter is defined by using the orbital inclinationi and the observable rotational velocity (V1,2 sini)M. The method is mainly suitable for eclipsing binary stars. Several others are suggested for the cases when the orbital inclinationi is unknown. The synchronous parameters are defined by usinga1,2 sini,m1,2, sin3i, the mass functionf(m) and semi-amplitudes of the velocity curve,K1,2 given in catalogue of parameters of spectroscopic binary systems and (V1,2 sini)M. These methods are suitable for spectroscopic binary stars including those that show eclipses and visual binary stars concurrently. The synchronous parameters for fifty-five components in thirty binary systems are calculated by using several methods. The numerical results are listed in Tables 1 and 2. The statistical results are listed in Table 3. In addition, several apparent descriptive methods are discussed.

    • Volume 26 Issue 4 December 2005 pp 447-450 Erratum

      An Apparent Phenomenal Descriptive Method for Judging the Synchronization of Rotation of Binary Stars

      Li Lin-sen

      More Details Fulltext PDF

  • Journal of Astrophysics and Astronomy | News

    • Continuous Article Publication

      Posted on January 27, 2016

      Since January 2016, the Journal of Astrophysics and Astronomy has moved to Continuous Article Publishing (CAP) mode. This means that each accepted article is being published immediately online with DOI and article citation ID with starting page number 1. Articles are also visible in Web of Science immediately. All these have helped shorten the publication time and have improved the visibility of the articles.

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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