ON THE OCCURRENCE RATE OF HOT JUPITERS IN DIFFERENT STELLAR ENVIRONMENTS

Wang, Ji; Fischer, Debra A.; Horch, Elliott P.; Huang, Xu

doi:10.1088/0004-637X/799/2/229

Title: ON THE OCCURRENCE RATE OF HOT JUPITERS IN DIFFERENT STELLAR ENVIRONMENTS

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Abstract

Many hot Jupiters (HJs) are detected by the Doppler and transit techniques. From surveys using these two techniques, however, the measured HJ occurrence rates differ by a factor of two or more. Using the California Planet Survey sample and the Kepler sample, we investigate the causes for this difference in the HJ occurrence rate. First, we find that 12.8% ± 0.24% of HJs are misidentified in the Kepler mission because of photometric dilution and subgiant contamination. Second, we explore the differences between the Doppler sample and the Kepler sample that can account for the different HJ occurrence rate. Third, we discuss how to measure the fundamental HJ occurrence rates by synthesizing the results from the Doppler and Kepler surveys. The fundamental HJ occurrence rates are measures of the HJ occurrence rate as a function of stellar multiplicity and evolutionary stage, e.g., the HJ occurrence rate for single and multiple stars or for main-sequence and subgiant stars. While we find qualitative evidence that HJs occur less frequently in subgiants and multiple stellar systems, we conclude that our current knowledge of stellar properties and the stellar multiplicity rate is too limited for us to reach any quantitative result for the fundamental HJmore »« less

Authors:

Wang, Ji; Fischer, Debra A. ^[1]; Horch, Elliott P. ^[2]; Huang, Xu ^[3]

Department of Astronomy, Yale University, New Haven, CT 06511 (United States)
Department of Physics, Southern Connecticut State University, 501 Crescent Street, New Haven, CT 06515 (United States)
Department of Astrophysical Sciences, Peyton Hall, 4 Ivy Lane, Princeton University, Princeton, NJ 08540 (United States)

Publication Date:: Sun Feb 01 00:00:00 EST 2015

OSTI Identifier:: 22364314

Resource Type:: Journal Article

Journal Name:: Astrophysical Journal

Additional Journal Information:: Journal Volume: 799; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0004-637X

Country of Publication:: United States

Language:: English

Subject:: 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; JUPITER PLANET; MULTIPLICITY; PHOTOMETRY; RADIAL VELOCITY; SATELLITES; STAR CLUSTERS; STARS; STATISTICS

Citation Formats


                    Wang, Ji, Fischer, Debra A., Horch, Elliott P., and Huang, Xu. ON THE OCCURRENCE RATE OF HOT JUPITERS IN DIFFERENT STELLAR ENVIRONMENTS.  United States: N. p., 2015. 
        Web.  doi:10.1088/0004-637X/799/2/229.

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                    Wang, Ji, Fischer, Debra A., Horch, Elliott P., & Huang, Xu. ON THE OCCURRENCE RATE OF HOT JUPITERS IN DIFFERENT STELLAR ENVIRONMENTS.  United States.  https://doi.org/10.1088/0004-637X/799/2/229

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                    Wang, Ji, Fischer, Debra A., Horch, Elliott P., and Huang, Xu. 2015.  
        "ON THE OCCURRENCE RATE OF HOT JUPITERS IN DIFFERENT STELLAR ENVIRONMENTS".  United States.  https://doi.org/10.1088/0004-637X/799/2/229.

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@article{osti_22364314,

  title        = {ON THE OCCURRENCE RATE OF HOT JUPITERS IN DIFFERENT STELLAR ENVIRONMENTS},

  author       = {Wang, Ji and Fischer, Debra A. and Horch, Elliott P. and Huang, Xu},

  abstractNote = {Many hot Jupiters (HJs) are detected by the Doppler and transit techniques. From surveys using these two techniques, however, the measured HJ occurrence rates differ by a factor of two or more. Using the California Planet Survey sample and the Kepler sample, we investigate the causes for this difference in the HJ occurrence rate. First, we find that 12.8% ± 0.24% of HJs are misidentified in the Kepler mission because of photometric dilution and subgiant contamination. Second, we explore the differences between the Doppler sample and the Kepler sample that can account for the different HJ occurrence rate. Third, we discuss how to measure the fundamental HJ occurrence rates by synthesizing the results from the Doppler and Kepler surveys. The fundamental HJ occurrence rates are measures of the HJ occurrence rate as a function of stellar multiplicity and evolutionary stage, e.g., the HJ occurrence rate for single and multiple stars or for main-sequence and subgiant stars. While we find qualitative evidence that HJs occur less frequently in subgiants and multiple stellar systems, we conclude that our current knowledge of stellar properties and the stellar multiplicity rate is too limited for us to reach any quantitative result for the fundamental HJ occurrence rates. This concern extends to η{sub Earth}, the occurrence rate of Earth-like planets.},

  doi          = {10.1088/0004-637X/799/2/229},

  url          = {https://www.osti.gov/biblio/22364314},
  journal      = {Astrophysical Journal},

  issn         = {0004-637X},

  number       = 2,

  volume       = 799,

  place        = {United States},

  year         = {Sun Feb 01 00:00:00 EST 2015},

  month        = {Sun Feb 01 00:00:00 EST 2015}

}

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