Kraus, Adam L. and Ireland, Michael J. and Martinache, Frantz and Lloyd, James P. (2009) Searching for Young Planets with Sparse Aperture Masking. In: Cool Stars, Stellar Systems And The Sun: Proceedings of the 15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun St. Andrews (Scotland), 21–25 July 2008. AIP Conference Proceedings. No.1094. American Institute of Physics , New York, NY, pp. 453-456. ISBN 978-0-7354-0627-8 http://resolver.caltech.edu/CaltechAUTHORS:20100510-100918223
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We describe an ongoing survey to directly detect substellar and planetary companions to nearby young stars. This survey uses adaptive optics and nonredundant aperture-masking inter-ferometry to achieve typical contrast limits of ΔK~6 at the diffraction limit, probing a completely new regime of parameter space. These observations have revealed many new stellar companions, but only a few companions that might be brown dwarfs; this paucity resembles the so-called “brown dwarf desert” that has been observed by RV planet searches. The survey has not detected any extra-solar planets, despite mass detection limits as low as 7 M_(Jup), yielding constraints on the population of extrasolar giant planets. Finally, we discuss some of the implications for protoplanetary disk evolution, including potential sources for gap formation and disk dissipation.
|Item Type:||Book Section|
|Additional Information:||© 2009 American Institute of Physics. Issue Date: 16 February 2009.|
|Subject Keywords:||stars:formation; stars:pre-main sequence; planetary systems:formation; planetary systems: protoplanetary disks; binaries:visual|
|Classification Code:||PACS: 97.82.-j; 97.80.-d; 97.20.Li|
|Official Citation:||Searching for Young Planets with Sparse Aperture Masking Adam L. Kraus, Michael J. Ireland, Frantz Martinache, and James P. Lloyd, AIP Conf. Proc. 1094, 453 (2009), DOI:10.1063/1.3099145|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Jason Perez|
|Deposited On:||24 Jun 2010 18:34|
|Last Modified:||26 Dec 2012 12:01|
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