The "666" collaboration on OGLE transits I.: Accurate radius of the planets OGLE-TR-10<i>b</i> and OGLE-TR-56<i>b</i> with VLT deconvolution photometry

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dc.contributor.authorPont, F.
dc.contributor.authorMoutou, C.
dc.contributor.authorGillon, M.
dc.contributor.authorUdalski, A.
dc.contributor.authorBouchy, F.
dc.contributor.authorFernandes, J. M.
dc.contributor.authorGieren, W.
dc.contributor.authorMayor, M.
dc.contributor.authorMazeh, T.
dc.contributor.authorMinniti, D.
dc.contributor.authorMelo, C.
dc.contributor.authorNaef, D.
dc.contributor.authorPietrzynski, G.
dc.contributor.authorQueloz, D.
dc.contributor.authorRuiz, M. T.
dc.contributor.authorSantos, N. C.
dc.contributor.authorUdry, S.
dc.date.accessioned2025-01-21T01:05:35Z
dc.date.available2025-01-21T01:05:35Z
dc.date.issued2007
dc.description.abstractTransiting planets are essential to study the structure and evolution of extra-solar planets. For that purpose, it is important to measure precisely the radius of these planets. Here we report new high-accuracy photometry of the transits of OGLE-TR-10 and OGLE-TR-56 with VLT/FORS1. One transit of each object was covered in Bessel V and R filters, and treated with the deconvolution-based photometry algorithm DECPHOT, to ensure accurate millimagnitude light curves. Together with earlier spectroscopic measurements, the data imply a radius of 1.22(-0.07)(+0.12) R-J for OGLE-TR-10b and 1.30 +/- 0.05 R-J for OGLE-TR-56b. A re-analysis of the original OGLE photometry resolves an earlier discrepancy about the radius of OGLE-TR-10. The transit of OGLE-TR-56 is almost grazing, so that small systematics in the photometry can cause large changes in the derived radius. Our study confirms both planets as inflated hot Jupiters, with large radii comparable to that of HD 209458b and at least two other recently discovered transiting gas giants.
dc.fuente.origenWOS
dc.identifier.doi10.1051/0004-6361:20066645
dc.identifier.eissn1432-0746
dc.identifier.issn0004-6361
dc.identifier.urihttps://doi.org/10.1051/0004-6361:20066645
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95964
dc.identifier.wosidWOS:000245290400038
dc.issue.numero3
dc.language.isoen
dc.pagina.final1074
dc.pagina.inicio1069
dc.revistaAstronomy & astrophysics
dc.rightsacceso restringido
dc.subjectstars : planetary systems
dc.subjecttechniques : photometric
dc.subject.ods13 Climate Action
dc.subject.odspa13 Acción por el clima
dc.titleThe "666" collaboration on OGLE transits I.: Accurate radius of the planets OGLE-TR-10<i>b</i> and OGLE-TR-56<i>b</i> with VLT deconvolution photometry
dc.typeartículo
dc.volumen465
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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