This HTML5 document contains 47 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

Subject Item

n2:w

rdf:type

rdac:C10001 bibo:Article

dcterms:isPartOf

n24:w

dcterms:subject

n7:techniquesphotometric n7:techniquesradialvelocities n9:planetsandplanetarysystems n7:minorplanetsasteroidsgeneral n7:planetsandsatellitesfundamentalparameters n7:planetsandsatellitesgaseousplanets

hub:subTitle

II. Multi-technique constraints on exotrojans in nine planetary systems

dcterms:title

The TROY project

dcterms:date

2018-01-01

rdaw:P10072

n13:print n13:web

vivo:relatedBy

n4:9 n4:7 n4:8 n4:5 n4:6 n4:3 n4:4 n4:13 n4:2 n4:11 n4:12 n4:1 n4:10

marcrel:aut

n2:boffinhmj n10:person n14:person n15:person n16:person n17:person n18:person n22:id n23:person n2:mallonnm n25:id n2:lendlm n2:nealj

dcterms:abstract

Context. Co-orbital bodies are the byproduct of planet formation and evolution, as we know from the solar system. Although planet-size co-orbitals do not exists in our planetary system, dynamical studies show that they can remain stable for long periods of time in the gravitational well of massive planets. Should they exist, their detection is feasible with the current instrumentation. Aims. In this paper, we present new ground-based observations searching for these bodies co-orbiting with nine close-in ( P< 5 days) planets, using various observing techniques. The combination of all of these techniques allows us to restrict the parameter space of any possible trojan in the system. Methods. We used multi-technique observations, comprised of radial velocity, precision photometry, and transit timing variations, both newly acquired in the context of the TROY project and publicly available, to constrain the presence of planet-size trojans in the Lagrangian points of nine known exoplanets. Results. We find no clear evidence of trojans in these nine systems through any of the techniques used down to the precision of the observations. However, this allows us to constrain the presence of any potential trojan in the system, especially in the trojan mass or radius vs. libration amplitude plane. In particular, we can set upper mass limits in the super-Earth mass regime for six of the studied systems.

hub:articleType

n19:researcharticle

hub:publisher-id

aa33312-18

dcterms:dateCopyrighted

2018-01-01

dcterms:rights

© ESO 2018

dcterms:rightsHolder

ESO

hub:isPartOfThisJournal

n11:w