About: TRANSIT TIMING VARIATIONS FOR PLANETS CO-ORBITING IN THE HORSESHOE REGIME

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1088/0004-637X/791/1/6
Description	Although not yet detected, pairs of exoplanets in 1:1 mean motion resonance probably exist. Low eccentricity, near-planar orbits, which in the comoving frame follow horseshoe trajectories, are one of the possible stable configurations. Here we study transit timing variations (TTVs) produced by mutual gravitational interaction of planets in this orbital architecture, with the goal to develop methods that can be used to recognize this case in observational data. In particular, we use a semi-analytic model to derive parametric constraints that should facilitate data analysis. We show that characteristic traits of the TTVs can directly constrain the (1) ratio of planetary masses and (2) their total mass (divided by that of the central star) as a function of the minimum angular separation as seen from the star. In an ideal case, when transits of both planets are observed and well characterized, the minimum angular separation can also be inferred from the data. As a result, parameters derived from the observed transit timing series alone can directly provide both planetary masses scaled to the central star mass. Although not yet detected, pairs of exoplanets in 1:1 mean motion resonance probably exist. Low eccentricity, near-planar orbits, which in the comoving frame follow horseshoe trajectories, are one of the possible stable configurations. Here we study transit timing variations (TTVs) produced by mutual gravitational interaction of planets in this orbital architecture, with the goal to develop methods that can be used to recognize this case in observational data. In particular, we use a semi-analytic model to derive parametric constraints that should facilitate data analysis. We show that characteristic traits of the TTVs can directly constrain the (1) ratio of planetary masses and (2) their total mass (divided by that of the central star) as a function of the minimum angular separation as seen from the star. In an ideal case, when transits of both planets are observed and well characterized, the minimum angular separation can also be inferred from the data. As a result, parameters derived from the observed transit timing series alone can directly provide both planetary masses scaled to the central star mass. (en)
Title	TRANSIT TIMING VARIATIONS FOR PLANETS CO-ORBITING IN THE HORSESHOE REGIME TRANSIT TIMING VARIATIONS FOR PLANETS CO-ORBITING IN THE HORSESHOE REGIME (en)
skos:prefLabel	TRANSIT TIMING VARIATIONS FOR PLANETS CO-ORBITING IN THE HORSESHOE REGIME TRANSIT TIMING VARIATIONS FOR PLANETS CO-ORBITING IN THE HORSESHOE REGIME (en)
skos:notation	RIV/00216208:11320/14:10286606!RIV15-GA0-11320___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA13-01308S)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Vokrouhlický, David
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	51037
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/14:10286606
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	planetary systems (en)
http://linked.open.../riv/klicoveSlovo	planetary systems
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[74219F33E00E]
http://linked.open...i/riv/nazevZdroje	Astrophysical Journal
http://linked.open...in/vavai/riv/obor	BN
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Dynamics of small bodies in the solar system
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	791
http://linked.open...iv/tvurceVysledku	Vokrouhlický, David Nesvorny, David
http://linked.open...ain/vavai/riv/wos	000339657700006
issn	0004-637X
number of pages	10 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/0004-637X/791/1/6
http://localhost/t...ganizacniJednotka	11320

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