J/ApJ/707/446ivo://CDS.VizieR/J/ApJ/707/446doi:10.26093/cds/vizier.17070446CDSBakos G.A.Howard A.W.Noyes R.W.Hartman J.Torres G.Kovacs G.,Fischer D.A.Latham D.W.Johnson J.A.Marcy G.W.Sasselov D.D.,Stefanik R.P.Sipocz B.Kovacs G.Esquerdo G.A.Pal A.Lazar J.,Papp I.Sari P.2026-05-19T14:24:40Z2012-01-26T11:53:13ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frsolar-system-planetsphotometrymultiple-starsWe report on the discovery of a planetary system with a close-in transiting hot Jupiter on a near circular orbit and a massive outer planet on a highly eccentric orbit. The inner planet, HAT-P-13b, transits the bright V=10.622 G4 dwarf star GSC 3416-00543 every P=2.916260+/-0.000010 days, with transit epoch T_c_=2454779.92979+/-0.00038 (BJD) and duration 0.1345+/-0.0017 days. The outer planet HAT-P-13c orbits the star every P_2_=428.5+/-3.0 days with a nominal transit center (assuming zero impact parameter) of T_2c_=2454870.4+/-1.8 (BJD) or time of periastron passage T_2,peri_=2454890.05+/-0.48 (BJD). Transits of the outer planet have not been observed, and may not be present. The host star has a mass of 1.22^+0.05^_-0.10_M_{sun}_, radius of 1.56+/-0.08R_{sun}_, effective temperature of 5653+/-90K, and is rather metal-rich with [Fe/H]=+0.41+/-0.08.2009ApJ...707..446Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/707/446CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/523/A84 : Transit light curves of HAT-P-13b (Szabo+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/707/446https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/707/446http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/707/446https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/707/446https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/707/446http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/707/446GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJ/707/446/table2Photometry follow-up of HAT-P-13recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBaricentric Julian Datedtime.epochdoubleimagDifferential, EPD and TFA corrected, i-band magnitude (1)magphot.mag;arith.diffdoublee_imagThe 1{sigma} error in imagmagstat.error;phot.mag;em.opt.IdoubleOmagOriginal, not TFA and EPD corrected, i-band differential magnitudemagphot.mag;arith.diffdouble