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Hot super-Earths stripped by their host stars

Simulations predict that hot super-Earth sized exoplanets can have their envelopes stripped by photoevaporation, which would present itself as a lack of these exoplanets. However, this absence in the exoplanet population has escaped a firm detection. Here we demonstrate, using asteroseismology on a...

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Autores principales: Lundkvist, M. S., Kjeldsen, H., Albrecht, S., Davies, G. R., Basu, S., Huber, D., Justesen, A. B., Karoff, C., Silva Aguirre, V., Van Eylen, V., Vang, C., Arentoft, T., Barclay, T., Bedding, T. R., Campante, T. L., Chaplin, W. J., Christensen-Dalsgaard, J., Elsworth, Y. P., Gilliland, R. L., Handberg, R., Hekker, S., Kawaler, S. D., Lund, M. N., Metcalfe, T. S., Miglio, A., Rowe, J. F., Stello, D., Tingley, B., White, T. R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4831017/
https://www.ncbi.nlm.nih.gov/pubmed/27062914
http://dx.doi.org/10.1038/ncomms11201
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author Lundkvist, M. S.
Kjeldsen, H.
Albrecht, S.
Davies, G. R.
Basu, S.
Huber, D.
Justesen, A. B.
Karoff, C.
Silva Aguirre, V.
Van Eylen, V.
Vang, C.
Arentoft, T.
Barclay, T.
Bedding, T. R.
Campante, T. L.
Chaplin, W. J.
Christensen-Dalsgaard, J.
Elsworth, Y. P.
Gilliland, R. L.
Handberg, R.
Hekker, S.
Kawaler, S. D.
Lund, M. N.
Metcalfe, T. S.
Miglio, A.
Rowe, J. F.
Stello, D.
Tingley, B.
White, T. R.
author_facet Lundkvist, M. S.
Kjeldsen, H.
Albrecht, S.
Davies, G. R.
Basu, S.
Huber, D.
Justesen, A. B.
Karoff, C.
Silva Aguirre, V.
Van Eylen, V.
Vang, C.
Arentoft, T.
Barclay, T.
Bedding, T. R.
Campante, T. L.
Chaplin, W. J.
Christensen-Dalsgaard, J.
Elsworth, Y. P.
Gilliland, R. L.
Handberg, R.
Hekker, S.
Kawaler, S. D.
Lund, M. N.
Metcalfe, T. S.
Miglio, A.
Rowe, J. F.
Stello, D.
Tingley, B.
White, T. R.
author_sort Lundkvist, M. S.
collection PubMed
description Simulations predict that hot super-Earth sized exoplanets can have their envelopes stripped by photoevaporation, which would present itself as a lack of these exoplanets. However, this absence in the exoplanet population has escaped a firm detection. Here we demonstrate, using asteroseismology on a sample of exoplanets and exoplanet candidates observed during the Kepler mission that, while there is an abundance of super-Earth sized exoplanets with low incident fluxes, none are found with high incident fluxes. We do not find any exoplanets with radii between 2.2 and 3.8 Earth radii with incident flux above 650 times the incident flux on Earth. This gap in the population of exoplanets is explained by evaporation of volatile elements and thus supports the predictions. The confirmation of a hot-super-Earth desert caused by evaporation will add an important constraint on simulations of planetary systems, since they must be able to reproduce the dearth of close-in super-Earths.
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spelling pubmed-48310172016-04-22 Hot super-Earths stripped by their host stars Lundkvist, M. S. Kjeldsen, H. Albrecht, S. Davies, G. R. Basu, S. Huber, D. Justesen, A. B. Karoff, C. Silva Aguirre, V. Van Eylen, V. Vang, C. Arentoft, T. Barclay, T. Bedding, T. R. Campante, T. L. Chaplin, W. J. Christensen-Dalsgaard, J. Elsworth, Y. P. Gilliland, R. L. Handberg, R. Hekker, S. Kawaler, S. D. Lund, M. N. Metcalfe, T. S. Miglio, A. Rowe, J. F. Stello, D. Tingley, B. White, T. R. Nat Commun Article Simulations predict that hot super-Earth sized exoplanets can have their envelopes stripped by photoevaporation, which would present itself as a lack of these exoplanets. However, this absence in the exoplanet population has escaped a firm detection. Here we demonstrate, using asteroseismology on a sample of exoplanets and exoplanet candidates observed during the Kepler mission that, while there is an abundance of super-Earth sized exoplanets with low incident fluxes, none are found with high incident fluxes. We do not find any exoplanets with radii between 2.2 and 3.8 Earth radii with incident flux above 650 times the incident flux on Earth. This gap in the population of exoplanets is explained by evaporation of volatile elements and thus supports the predictions. The confirmation of a hot-super-Earth desert caused by evaporation will add an important constraint on simulations of planetary systems, since they must be able to reproduce the dearth of close-in super-Earths. Nature Publishing Group 2016-04-11 /pmc/articles/PMC4831017/ /pubmed/27062914 http://dx.doi.org/10.1038/ncomms11201 Text en Copyright © 2016, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Lundkvist, M. S.
Kjeldsen, H.
Albrecht, S.
Davies, G. R.
Basu, S.
Huber, D.
Justesen, A. B.
Karoff, C.
Silva Aguirre, V.
Van Eylen, V.
Vang, C.
Arentoft, T.
Barclay, T.
Bedding, T. R.
Campante, T. L.
Chaplin, W. J.
Christensen-Dalsgaard, J.
Elsworth, Y. P.
Gilliland, R. L.
Handberg, R.
Hekker, S.
Kawaler, S. D.
Lund, M. N.
Metcalfe, T. S.
Miglio, A.
Rowe, J. F.
Stello, D.
Tingley, B.
White, T. R.
Hot super-Earths stripped by their host stars
title Hot super-Earths stripped by their host stars
title_full Hot super-Earths stripped by their host stars
title_fullStr Hot super-Earths stripped by their host stars
title_full_unstemmed Hot super-Earths stripped by their host stars
title_short Hot super-Earths stripped by their host stars
title_sort hot super-earths stripped by their host stars
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4831017/
https://www.ncbi.nlm.nih.gov/pubmed/27062914
http://dx.doi.org/10.1038/ncomms11201
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