Reference : A Direct Imaging Survey of Spitzer-detected Debris Disks: Occurrence of Giant Planets...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/253328
A Direct Imaging Survey of Spitzer-detected Debris Disks: Occurrence of Giant Planets in Dusty Systems
English
Meshkat, Tiffany [IPAC, Caltech, M/C 100-22, 1200 East California Boulevard, Pasadena, CA 91125, USA ; Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA <ID system="ORCID">0000-0001-6126-2467</ID>]
Mawet, Dimitri [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA ; Department of Astronomy, California Institute of Technology, 1200 East California Boulevard, MC 249-17, Pasadena CA 91125, USA <ID system="ORCID">0000-0002-8895-4735</ID>]
Bryan, Marta L. [Department of Astronomy, California Institute of Technology, 1200 East California Boulevard, MC 249-17, Pasadena CA 91125, USA <ID system="ORCID">0000-0002-6076-5967</ID>]
Hinkley, Sasha [University of Exeter, Physics Department, Stocker Road, Exeter, EX4 4QL, UK <ID system="ORCID">0000-0001-8074-2562</ID>]
Bowler, Brendan P. [McDonald Observatory and the University of Texas at Austin, Department of Astronomy, 2515 Speedway, Stop C1400, Austin, TX 78712, USA ; <ID system="ORCID">0000-0003-2649-2288</ID>]
Stapelfeldt, Karl R. [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA ; Laboratory for Exoplanets and Stellar Astrophysics, Code 667, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA]
Batygin, Konstantin [Division of Geological and Planetary Sciences, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA]
Padgett, Deborah [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA ; Laboratory for Exoplanets and Stellar Astrophysics, Code 667, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA <ID system="ORCID">0000-0001-5334-5107</ID>]
Morales, Farisa Y. [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA <ID system="ORCID">0000-0001-9414-3851</ID>]
Serabyn, Eugene [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA]
Christiaens, Valentin mailto [Université de Liège - ULiège > > > Form. doct. sc. (sc. spatiales - paysage)]
Brandt, Timothy D. [Astrophysics Department, Institute for Advanced Study, 1 Einstein Drive, Princeton, NJ 08540, USA ; <ID system="ORCID">0000-0003-2630-8073</ID>]
Wahhaj, Zahed [European Southern Observatory, Alonso de Còrdova 3107, Vitacura, Casilla 19001, Santiago, Chile <ID system="ORCID">0000-0001-8269-324X</ID>)]
1-Dec-2017
Astronomical Journal
American Astronomical Society
154
6
245
Yes (verified by ORBi)
International
0004-6256
1538-3881
United States
[en] circumstellar matter ; methods: statistical ; planets and satellites: detection ; techniques: high angular resolution
[en] We describe a joint high-contrast imaging survey for planets at the Keck and Very Large Telescope of the last large sample of debris disks identified by the Spitzer Space Telescope. No new substellar companions were discovered in our survey of 30 Spitzer-selected targets. We combine our observations with data from four published surveys to place constraints on the frequency of planets around 130 debris disk single stars, the largest sample to date. For a control sample, we assembled contrast curves from several published surveys targeting 277 stars that do not show infrared excesses. We assumed a double power-law distribution in mass and semimajor axis (SMA) of the form f(m,a)={{Cm}}[SUP]α [/SUP]{a}[SUP]β [/SUP], where we adopted power-law values and logarithmically flat values for the mass and SMA of planets. We find that the frequency of giant planets with masses 5-20 M [SUB]Jup[/SUB] and separations 10-1000 au around stars with debris disks is 6.27% (68% confidence interval 3.68%-9.76%), compared to 0.73% (68% confidence interval 0.20%-1.80%) for the control sample of stars without disks. These distributions differ at the 88% confidence level, tentatively suggesting distinctness of these samples. Some of the data presented herein were obtained at the W.M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W.M. Keck Foundation.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/253328
10.3847/1538-3881/aa8e9a

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