|Debris Disks around Planet-Bearing Stars
|The relationship between planets and debris disks is unclear. On one hand the direct imaging of planets in three systems with prominent debris disks (beta Pic, HR 8799, and Fomalhaut) suggests a direct link between the two phenomena. Indeed, the eccentric shape of the Fomalhaut dust ring is clearly driven by its shepherding planet, whose existence and eccentricity were correctly predicted based on the disk asymmetry. On the other hand, Spitzer surveys fail to find any correlation between cold debris at 10.s of AUs and radial-velocity-detected planets in the inner system. Motivated by Herschel.s advantages over Spitzer, we propose to further explore the planet-debris relationship by observing 67 stars known to have planets. For the 9 targets that are already known to have orbiting debris, we will resolve the disks, determining the location of the dust-producing planetesimals and measuring disk asymmetries that may be induced by neighboring planets. For the remainder of the targets we will search for new debris disks and then look within the overall sample for any correlations with planet properties.
|A statistically significant lack of debris discs in medium separation binary systems . Yelverton Ben et al. . Monthly Notices of the Royal Astronomical Society . null . null . 2019MNRAS.488.3588Y ,
|Herschel was launched on 14 May 2009! It is the fourth 'cornerstone' mission in the ESA science programme. With a 3.5 m Cassegrain telescope it is the largest space telescope ever launched. It is performing photometry and spectroscopy in approximately the 55-671 µm range, bridging the gap between earlier infrared space missions and groundbased facilities.
|Publisher And Registrant
|European Space Agency
|European Space Agency, 2013, OT1_gbryden_1, SPG v14.2.0. https://doi.org/10.5270/esa-rhgdbwi