Constraints on extrasolar planet populations from VLT NACO/SDI and MMT SDI and direct adaptive optics imaging surveys: Giant planets are rare at large separations

E. L. Nielsen, L. M. Close, B. A. Biller, E. Masciadri, R. Lenzen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

We examine the implications for the distribution of extrasolar planets based on the null results from two of the largest direct imaging surveys published to date. Combining the measured contrast curves from Masciadri et al. (2005) and Biller et al. (2007), we consider what distributions of planet masses and semi-major axes can be ruled out by these data, based on Monte Carlo simulations of planet populations. We can set the following upper limit with 95% confidence: the fraction of stars with planets with semi-major axis between 20 and 100 AU, and mass above 4,M Jup , is 20% or less. Also, with a distribution of planet mass of frac in the range of 0.5-13 MJup, we can rule out a power-law distribution for semi-major axis with index 0 and upper cut-off of 18 AU, and index -0.5 with an upper cut-off of 48 AU. For the distribution suggested by Cumming et al. (2008), a power-law of index -0.61, we can place an upper limit of 75 AU on the semi-major axis distribution.

Original languageEnglish (US)
Title of host publicationPhysics and Astrophysics of Planetary Systems
Pages107-110
Number of pages4
DOIs
StatePublished - Dec 1 2010
EventPhysics and Astrophysics of Planetary Systems - Chamonix, France
Duration: Feb 18 2008Feb 29 2008

Publication series

NameEAS Publications Series
Volume41
ISSN (Print)1633-4760
ISSN (Electronic)1638-1963

Other

OtherPhysics and Astrophysics of Planetary Systems
CountryFrance
CityChamonix
Period2/18/082/29/08

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Engineering(all)
  • Space and Planetary Science

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    Nielsen, E. L., Close, L. M., Biller, B. A., Masciadri, E., & Lenzen, R. (2010). Constraints on extrasolar planet populations from VLT NACO/SDI and MMT SDI and direct adaptive optics imaging surveys: Giant planets are rare at large separations. In Physics and Astrophysics of Planetary Systems (pp. 107-110). (EAS Publications Series; Vol. 41). https://doi.org/10.1051/eas/1041008