Skip navigation
Skip navigation

WASP-34b: A near-grazing transiting sub-Jupiter-mass exoplanet in a hierarchical triple system

Smalley, B; Anderson, David R.; Collier Cameron, Andrew; Hellier, Coel; Lendl, Monika A.; Maxted, P F L; Queloz, D; Triaud, AHMJ; Southworth, J; West, R G; Bento (Da Silva Bento), Joao

Description

We report the discovery of WASP-34b, a sub-Jupiter-mass exoplanet transiting its 10.4-magnitude solar-type host star (1SWASP J110135.89-235138.4; TYC 6636-540-1) every 4.3177 days in a slightly eccentric orbit (e = 0.038±0.012). We find a planetary mass of 0.59±0.01 M Jup and radius of 1.22-0.08 +0.11 R Jup. There is a linear trend in the radial velocities of 55±4 m s-1 y-1 indicating the presence of a long-period third body in the system with a mass ≥0.45 MJup at a distance of ≥1.2 AU from the...[Show more]

dc.contributor.authorSmalley, B
dc.contributor.authorAnderson, David R.
dc.contributor.authorCollier Cameron, Andrew
dc.contributor.authorHellier, Coel
dc.contributor.authorLendl, Monika A.
dc.contributor.authorMaxted, P F L
dc.contributor.authorQueloz, D
dc.contributor.authorTriaud, AHMJ
dc.contributor.authorSouthworth, J
dc.contributor.authorWest, R G
dc.contributor.authorBento (Da Silva Bento), Joao
dc.date.accessioned2018-11-29T22:52:02Z
dc.date.available2018-11-29T22:52:02Z
dc.identifier.issn0004-6361
dc.identifier.urihttp://hdl.handle.net/1885/152057
dc.description.abstractWe report the discovery of WASP-34b, a sub-Jupiter-mass exoplanet transiting its 10.4-magnitude solar-type host star (1SWASP J110135.89-235138.4; TYC 6636-540-1) every 4.3177 days in a slightly eccentric orbit (e = 0.038±0.012). We find a planetary mass of 0.59±0.01 M Jup and radius of 1.22-0.08 +0.11 R Jup. There is a linear trend in the radial velocities of 55±4 m s-1 y-1 indicating the presence of a long-period third body in the system with a mass ≥0.45 MJup at a distance of ≥1.2 AU from the host star. This third-body is either a low-mass star, a white dwarf, or another planet. The transit depth ((RP/R*) 2 = 0.0126) and high impact parameter (b = 0.90) suggest that this could be the first known transiting exoplanet expected to undergo grazing transits, but with a confidence of only ~80%
dc.format.mimetypeapplication/pdf
dc.publisherSpringer
dc.sourceAstronomy and Astrophysics
dc.titleWASP-34b: A near-grazing transiting sub-Jupiter-mass exoplanet in a hierarchical triple system
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume526
dc.date.issued2011
local.identifier.absfor020110 - Stellar Astronomy and Planetary Systems
local.identifier.ariespublicationa383154xPUB8007
local.type.statusPublished Version
local.contributor.affiliationSmalley, B, Keele University
local.contributor.affiliationAnderson, David R., Keele University
local.contributor.affiliationCollier Cameron, Andrew, University of St Andrews
local.contributor.affiliationHellier, Coel, Keele University
local.contributor.affiliationLendl, Monika A., Institut fur Weltraumforschung
local.contributor.affiliationMaxted, P F L, Keele University
local.contributor.affiliationQueloz, D, Geneva Observatory
local.contributor.affiliationTriaud, AHMJ, MIT Kavli Institute, Cambridge, Massachusetts
local.contributor.affiliationSouthworth, J, Keele University
local.contributor.affiliationWest, R G, University of Warwick
local.contributor.affiliationBento (Da Silva Bento), Joao, College of Science, ANU
local.bibliographicCitation.issue16
local.identifier.doi10.1051/0004-6361/201015992
dc.date.updated2018-11-29T07:42:42Z
local.identifier.scopusID2-s2.0-78651319671
local.identifier.thomsonID000286458400142
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

Download

File Description SizeFormat Image
01_Smalley_WASP-34b%3A_A_near-grazing_2011.pdf3.43 MBAdobe PDFThumbnail


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  19 May 2020/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator