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Searching for Young Planets with Sparse Aperture Masking

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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Abstract

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
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.3099145DOIUNSPECIFIED
http://link.aip.org/link/?APCPCS/1094/453/1PublisherUNSPECIFIED
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
Record Number:CaltechAUTHORS:20100510-100918223
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20100510-100918223
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.
ID Code:18206
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:24 Jun 2010 18:34
Last Modified:26 Dec 2012 12:01

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