A dataset provided by the European Space Agency

Name OT1_abonsor_1
Title Search for a correlation between planets and debris discs around retired A stars
URL

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DOI 10.5270/esa-ef7h6tz
Author bonsor, a.
Description Planet formation leads to two detectable outcomes - planets and debris disks. No correlation between these outcomes has been found for main sequence FGK stars. However, planet formation outcome depends on spectral type. Furthermore, the higher incidence of both planets and debris for A stars makes correlations easier to detect. We propose to test for a debris-planet correlation around A stars, by observing 36 subgiants (retired A stars) with PACS to search for debris disk emission. All of these stars have been searched for planets, and 18 have detections. Our population models, calibrated to main sequence disk evolution statistics, predict that we should detect disks toward 23% of our sample. Comparison of debris incidences in the planet and control samples will quantify any debris-planet correlation, which would provide valuable constraints for planet formation models. Even without such a correlation, we expect to find 4 debris-planet systems, adding to the 10 currently known, which would provide a significant advance in our understanding of the dynamics of planet-disk interactions, and so of how these systems could have formed. Also, since the post-main sequence debris disk population is currently poorly known, any disk discovery (or lack of it) will provide important new constraints on the evolution of debris in this phase.
Publication Herschel observations of debris discs orbiting planet-hosting subgiants . Bonsor Amy et al. . Monthly Notices of the Royal Astronomical Society, Volume 437, Issue 4, p.3288-3297 . 437 . 10.1093\/mnras\/stt2128 . 2014MNRAS.437.3288B ,
Instrument PACS_PacsPhoto_largeScan
Temporal Coverage 2011-03-20T23:31:42Z/2012-04-05T04:40:12Z
Version SPG v14.2.0
Mission Description 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 ┬Ám range, bridging the gap between earlier infrared space missions and groundbased facilities.
Creator Contact https://support.cosmos.esa.int/herschel/
Date Published 2012-10-05T04:25:17Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2012-10-05T04:25:17Z, OT1_abonsor_1, SPG v14.2.0. https://doi.org/10.5270/esa-ef7h6tz