The BANANA Survey: Spin-Orbit Alignment in Binary Stars

Author(s)
Fabrycky, Daniel C.; Torres, G.; Setiawan, J.; Albrecht, Simon H.; Winn, Joshua Nathan
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Abstract
Binaries are not always neatly aligned. Previous observations of the DI Herculis system showed that the spin axes of both stars are highly inclined with respect to one another and the orbital axis. Here, we report on our ongoing survey to measure relative orientations of spin-axes in a number of eclipsing binary systems. These observations will hopefully lead to new insights into star and planet formation, as different formation scenarios predict different degrees of alignment and different dependencies on the system parameters. Measurements of spin-orbit angles in close binary systems will also create a basis for comparison for similar measurements involving close-in planets.
Date issued
2011-07
URI
http://hdl.handle.net/1721.1/78936
Department
Massachusetts Institute of Technology. Department of Physics; MIT Kavli Institute for Astrophysics and Space Research
Journal
Proceedings of the International Astronomical Union
Publisher
Cambridge University Press
Citation
Albrecht, Simon, J. N. Winn, D. C. Fabrycky, G. Torres, and J. Setiawan. The BANANA Survey: Spin-Orbit Alignment in Binary Stars. Proceedings of the International Astronomical Union 7, no. S282 (July 23, 2011): 397-398. doi:10.1017/S1743921311027906. © 2012 International Astronomical Union
Version: Final published version
ISSN
1743-9213
1743-9221
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