New Massive Binaries in the Cygnus OB2 Association - AstrophysicsReport as inadecuate

New Massive Binaries in the Cygnus OB2 Association - Astrophysics - Download this document for free, or read online. Document in PDF available to download.

Abstract: As part of an ongoing study to determine the distribution of orbitalparameters for massive binaries in the Cygnus OB2 Association, we present theorbital solutions for two new single-lined spectroscopic binaries, MT059 O8Vand MT258 O8V, and one double-lined eclipsing binary Schulte 3. We alsoconstrain the orbital elements of three additional double-lined systems MT252,MT720, MT771. Periods for all systems range from 1.5-19 days andeccentricities range from 0-0.11. The six new OB binary systems bring the totalnumber of multiple systems within the core region of Cyg OB2 to 11. The currentsample does not show evidence for a ``twin-heavy- binary distribution.

Author: Daniel C. Kiminki, M. Virgina McSwain, Henry A. Kobulnicky


Related documents