The spatial distribution of spectroscopic binaries and blue stragglers in the open cluster M67.
Abstract
The authors examine the spatial distribution of spectroscopic binaries and blue stragglers in the old open cluster M67. They show that both the binaries and the blue stragglers are indeed more centrally concentrated than the 1.2 M_sun; main-sequence-turnoff stars. Furthermore, the spatial distributions of the binaries and blue stragglers are very similar. The authors show that the central concentration of the binaries and blue stragglers is consistent with a multimass isotropic equipartition King model fit to the cluster in which the binaries and blue stragglers are modeled by a relaxed 2 M_sun; component. Finally, the authors discuss the implications of these findings with regard to the origin of blue stragglers.
- Publication:
-
The Astronomical Journal
- Pub Date:
- December 1986
- DOI:
- 10.1086/114269
- Bibcode:
- 1986AJ.....92.1364M
- Keywords:
-
- Binary Stars;
- Blue Stars;
- Giant Stars;
- Main Sequence Stars;
- Open Clusters;
- Spatial Distribution;
- Color-Magnitude Diagram;
- Radial Velocity;
- Stellar Spectra;
- Astrophysics;
- Blue Stragglers:Open Clusters;
- Open Clusters:Blue Stragglers;
- Open Clusters:Spectroscopic Binaries;
- Open Clusters:Stellar Distribution;
- Spectroscopic Binaries:Open Clusters