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How long can the most extreme planetary systems survive? - Measuring the tidal orbital decay of Hot Jupiters

Harre, Jan-Vincent and Smith, Alexis M S and Csizmadia, Szilard and Rauer, Heike and Pätzold, Martin (2021) How long can the most extreme planetary systems survive? - Measuring the tidal orbital decay of Hot Jupiters. SPP 1992 annual all-hand-on-deck meeting 2021, 06. Okt. - 07. Okt. 2021, Deutschland.

Full text not available from this repository.

Abstract

Hot Jupiters are a class of exoplanets, orbiting very close to their host stars. What is unusual about them is that gas planets are predicted to form beyond the snow line, a few astronomical units from their stars in the case of solar-like stars. Migration mechanisms like disc-driven migration or migration via dynamical processes can explain these short-period orbits. Due to the close distances between Hot Jupiters and their host stars, strong tidal forces lead to a transfer of angular momentum from the planet towards the star. This loss of angular momentum from the Hot Jupiter leads to their orbits shrinking slowly. Usually, the closer the orbit, the stronger the orbital decay. The timescales of these interactions are determined by the stellar tidal quality factor, which is only loosely constrained with estimates ranging over several magnitudes. By measuring the orbital decay of Hot Jupiters, the stellar tidal quality factor can be determined. In this project, we seek to determine the lifetime of Hot Jupiters and the tidal quality factor of their host stars using transit timing variations. This should give us an insight in how the stellar tidal quality factor might vary with for example the spectral type and also give implications for Hot Jupiter migration theories.

Item URL in elib:https://elib.dlr.de/144731/
Document Type:Conference or Workshop Item (Poster)
Title:How long can the most extreme planetary systems survive? - Measuring the tidal orbital decay of Hot Jupiters
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Harre, Jan-Vincentjan-vincent.harre (at) dlr.deUNSPECIFIED
Smith, Alexis M SAlexis.Smith (at) dlr.dehttps://orcid.org/0000-0002-2386-4341
Csizmadia, Szilardszilard.csizmadia (at) dlr.deUNSPECIFIED
Rauer, Heikeheike.rauer (at) dlr.dehttps://orcid.org/0000-0002-6510-1828
Pätzold, MartinRheinisches Institut für Umweltforschung, Abteilung Planetenforschung an der Universität zu Köln, Aachener Strasse 209, 50931UNSPECIFIED
Date:2021
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Tidal decay, Hot Jupiters, Exoplanets, Transit timing variations
Event Title:SPP 1992 annual all-hand-on-deck meeting 2021
Event Location:Deutschland
Event Type:national Conference
Event Dates:06. Okt. - 07. Okt. 2021
Organizer:DFG
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - CHEOPS Science
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Extrasolar Planets and Atmospheres
Institute of Planetary Research > Leitungsbereich PF
Deposited By: Harre, Jan-Vincent
Deposited On:21 Oct 2021 07:33
Last Modified:21 Oct 2021 07:33

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