SIMBAD references

2017AJ....154..245M - Astron. J., 154, 245-245 (2017/December-4)

A direct imaging survey of Spitzer-detected debris disks: occurrence of giant planets in dusty systems.

MESHKAT T., MAWET D., BRYAN M.L., HINKLEY S., BOWLER B.P., STAPELFELDT K.R., BATYGIN K., PADGETT D., MORALES F.Y., SERABYN E., CHRISTIAENS V., BRANDT T.D. and WAHHAJ Z.

Abstract (from CDS):

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^αaβ^, 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 MJup 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.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): circumstellar matter - methods: statistical - planets and satellites: detection - techniques: high angular resolution - techniques: high angular resolution

VizieR on-line data: <Available at CDS (J/AJ/154/245): table3.dat table7.dat>

Simbad objects: 457

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2019.09.21-09:46:50

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