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dc.contributor.authorSifón, Cristóbal
dc.contributor.authorCacciato, Marcello
dc.contributor.authorHoekstra, Henk
dc.contributor.authorBrouwer, Margot
dc.contributor.authorUitert, Edo van
dc.contributor.authorViola, Massimo
dc.contributor.authorBaldry, Ivan
dc.contributor.authorBrough, Sarah
dc.contributor.authorBrown, Michael J. I.
dc.contributor.authorChoi, Ami
dc.contributor.authorDriver, Simon P.
dc.contributor.authorErben, Thomas
dc.contributor.authorGrado, Aniello
dc.contributor.authorHeymans, Catherine
dc.contributor.authorHildebrandt, Hendrik
dc.contributor.authorJoachimi, Benjamin
dc.contributor.authorJong, Jelte T. A. de
dc.contributor.authorKuijken, Konrad
dc.contributor.authorMcFarland, John
dc.contributor.authorMiller, Lance
dc.contributor.authorNakajima, Reiko
dc.contributor.authorNapolitano, Nicola
dc.contributor.authorNorberg, Peder
dc.contributor.authorRobotham, Aaron S. G.
dc.contributor.authorSchneider, Peter
dc.contributor.authorKleijn, Gijs Verdoes
dc.date.accessioned2018-01-22T11:30:12Z
dc.date.available2018-01-22T11:30:12Z
dc.date.issued2015-12-21
dc.identifier.citationSifón , C , Cacciato , M , Hoekstra , H , Brouwer , M , Uitert , E V , Viola , M , Baldry , I , Brough , S , Brown , M J I , Choi , A , Driver , S P , Erben , T , Grado , A , Heymans , C , Hildebrandt , H , Joachimi , B , Jong , J T A D , Kuijken , K , McFarland , J , Miller , L , Nakajima , R , Napolitano , N , Norberg , P , Robotham , A S G , Schneider , P & Kleijn , G V 2015 , ' The masses of satellites in GAMA galaxy groups from 100 square degrees of KiDS weak lensing data ' , Monthly Notices of the Royal Astronomical Society , vol. 454 , no. 4 , pp. 3938-3951 . https://doi.org/10.1093/mnras/stv2051en
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 252099616
dc.identifier.otherPURE UUID: e81ded47-e652-4be1-bdc2-9e9594626ea4
dc.identifier.otherArXiv: http://arxiv.org/abs/1507.00737v3
dc.identifier.otherScopus: 84949257366
dc.identifier.otherWOS: 000368001600049
dc.identifier.urihttp://hdl.handle.net/10023/12555
dc.description.abstractWe use the first 100 deg2 of overlap between the Kilo-Degree Survey and the Galaxy And Mass Assembly survey to determine the average galaxy halo mass of ∼10 000 spectroscopically confirmed satellite galaxies in massive (M > 1013 h−1 M⊙) galaxy groups. Separating the sample as a function of projected distance to the group centre, we jointly model the satellites and their host groups with Navarro–Frenk–White density profiles, fully accounting for the data covariance. The probed satellite galaxies in these groups have total masses log 〈Msub/(h−1 M⊙)〉 ≈ 11.7–12.2 consistent across group-centric distance within the errorbars. Given their typical stellar masses, log 〈M⋆, sat/(h−2 M⊙)〉 ∼ 10.5, such total masses imply stellar mass fractions of 〈M⋆, sat〉/〈Msub〉 ≈ 0.04 h−1. The average subhalo hosting these satellite galaxies has a mass Msub ∼ 0.015Mhost independent of host halo mass, in broad agreement with the expectations of structure formation in a Λ cold dark matter universe.
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen
dc.rights© 2015,the Author(s). This work has been made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at https://doi.org/10.1093/mnras/stv2051en
dc.subjectGravitational lensing: weaken
dc.subjectMethods: observationalen
dc.subjectMethods: statisticalen
dc.subjectGalaxies: haloesen
dc.subjectGalaxies: statisticsen
dc.subjectDark matteren
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subject3rd-DASen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleThe masses of satellites in GAMA galaxy groups from 100 square degrees of KiDS weak lensing dataen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.identifier.doihttps://doi.org/10.1093/mnras/stv2051
dc.description.statusPeer revieweden


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