Hostname: page-component-7bb8b95d7b-2h6rp Total loading time: 0 Render date: 2024-10-04T18:18:29.400Z Has data issue: false hasContentIssue false
  • English
  • Français

Extracting Velocities for Faint Secondaries

Published online by Cambridge University Press:  12 April 2016

D. Cohen  and
D.W. Latham
D. Cohen
Affiliation:
Department of Astronomy, University of Wisconsin, 475 Charter Street, Madison, Wisconsin 53706, USA and Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
D.W. Latham
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

When velocities can be determined for both members of a double-lined spectroscopic binary, then the mass ratio can be calculated immediately. With the goal of measuring velocities for faint secondaries in single-lined spectroscopic binaries, we have experimented with a technique of first subtracting the spectrum of the primary using synthetic spectra calculated from Kurucz model stellar atmospheres and then correlating to get the velocity of the secondary. For half a dozen of the single-lined spectroscopic binaries in the Carney-Latham survey of proper-motion stars we have been able to extract velocities for the secondaries and to solve for double-lined orbits.

Type
Spectroscopic Studies
Information
International Astronomical Union Colloquium , Volume 135: Complementary Approaches to Double and Multiple Star Research , 1992 , pp. 143 - 145
Copyright
Copyright © Astronomical Society of the Pacific 1992

References

Carney, B.W., Laird, J.B., Latham, D.W., & Kurucz, R.L. 1987, AJ, 94 1066 CrossRefGoogle Scholar
Duquennoy, A. & Mayor, M. 1991, A&A, 248 485 Google Scholar
Latham, D.W. 1992, this volumeGoogle Scholar
Latham, D.W., Mazeh, T., Stefanik, R.P., Davis, R.J., Carney, B.W., Krymolowski, Y., Laird, J.B., Torres, G., & Morse, J.A. 1992a, AJ, 104, 774 Google Scholar
Latham, D.W., Mazeh, T., Stefanik, R.P., Davis, R.J., Carney, B.W., Torres, G., & Laird, J.B. 1992b, this ColloquiumGoogle Scholar
Mazeh, T. & Goldberg, D. 1992a, ApJ 394, 592 Google Scholar
Mazeh, T. & Goldberg, D. 1992b, this ColloquiumGoogle Scholar
Torres, G. 1991, PhD thesisGoogle Scholar