Hostname: page-component-8448b6f56d-t5pn6 Total loading time: 0 Render date: 2024-04-19T03:35:30.355Z Has data issue: false hasContentIssue false
  • English
  • Français

Defining the Binary Star Population in the Young Open Cluster M35 (NGC 2168)

Published online by Cambridge University Press:  01 September 2007

Ella K. Braden ,
Robert D. Mathieu  and
Sören Meibom
Ella K. Braden
Affiliation:
Department of Astronomy, University of Wisconsin-Madison, Madison, WI 53706 email: braden@astro.wisc.edu, mathieu@astro.wisc.edu
Robert D. Mathieu
Affiliation:
Department of Astronomy, University of Wisconsin-Madison, Madison, WI 53706 email: braden@astro.wisc.edu, mathieu@astro.wisc.edu
Sören Meibom
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 email: smeibom@cfa.harvard.edu
Rights & Permissions [Opens in a new window]

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.

We present current results from the ongoing WIYN Open Cluster Study radial-velocity survey for 1410 stars in the young (150 Myr) open cluster M35 (NGC 2168) and establish a benchmark for initial conditions in young open clusters. We find for periods ≲ 1000 days a minimum binary frequency of 0.36 – 0.51. We also analyze the spatial, period and eccentricity distributions of the binary systems and find that the period and eccentricity distributions are well approximated by scaled field distributions from Duquennoy & Mayor (1991). With our large sample size and long baseline, we have a unique understanding of the binary population in this young cluster, making it ideal for defining initial conditions for dynamical simulations.

Keywords

Stars: binaries: spectroscopicGalaxy: open clusters: individual (M35 (NGC 2168))
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S246: Dynamical Evolution of Dense Stellar Systems , September 2007 , pp. 105 - 106
Copyright
Copyright © International Astronomical Union 2008

References

Duquennoy, A. & Mayor, M. 1991, A & A, 248, 485Google Scholar
Hurley, J. R., Pols, O. R., Aarseth, S. J., & Tout, C. A. 2005 MNRAS, 363, 293CrossRefGoogle Scholar
Mathieu, R. D. 1983 PhD thesis, Univ. Calif. BerkeleyGoogle Scholar
Mathieu, R. D. 2000 PASP, 198, 517Google Scholar
Meibom, S. & Mathieu, R. D. 2005 ApJ, 620, 970CrossRefGoogle Scholar