J/ApJ/749/134ivo://CDS.VizieR/J/ApJ/749/134doi:10.26093/cds/vizier.17490134CDSHoward A.W.Bakos G.A.Hartman J.Torres G.Shporer A.Mazeh T.,Kovacs G.Latham D.W.Noyes R.W.Fischer D.A.Johnson J.A.Marcy G.W.,Esquerdo G.A.Beky B.Butler R.P.Sasselov D.D.Stefanik R.P.,Perumpilly G.Lazar J.Papp I.Sari P.2017-06-13T11:08:18Z2014-01-14T08:12:53ZCDS support team

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

cds-question@unistra.frphotometryradial-velocitymultiple-starssolar-system-planetsWe report the discovery of HAT-P-17b,c, a multi-planet system with an inner transiting planet in a short-period, eccentric orbit and an outer planet in a 4.4 yr, nearly circular orbit. The inner planet, HAT-P-17b, transits the bright V=10.54 early K dwarf star GSC 2717-00417, with an orbital period P=10.338523+/-0.000009 days, orbital eccentricity e=0.342+/-0.006, transit epoch T_c_=2454801.16943+/-0.00020 (BJD: barycentric Julian dates throughout the paper are calculated from Coordinated Universal Time (UTC)), and transit duration 0.1690+/-0.0009 days. HAT-P-17b has a mass of 0.534+/-0.018M_J_ and radius of 1.010+/-0.029R_J_ yielding a mean density of 0.64+/-0.05g/cm3. This planet has a relatively low equilibrium temperature in the range 780-927K, making it an attractive target for follow-up spectroscopic studies. The outer planet, HAT-P-17c, has a significantly longer orbital period P_2_=1610+/-20d and a minimum mass m_2_sini_2_=1.31^+0.18^_-0.15_M_J_. The orbital inclination of HAT-P-17c is unknown as transits have not been observed and may not be present. The host star has a mass of 0.86+/-0.04M_{sun}_, radius of 0.84+/-0.02R_{sun}_, effective temperature 5246+/-80K, and metallicity [Fe/H]=0.00+/-0.08. HAT-P-17 is the second multi-planet system detected from ground-based transit surveys.2012ApJ...749..134Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/749/134CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/558/A106 : Transit hosts and surface gravity (Mortier+, 2013)J/A+A/558/A86 : HAT-P-42b and HAT-P-43b ri light curves (Boisse+, 2013)J/ApJ/735/24 : HAT-P-30 follow-up photometry (Johnson+, 2011)J/ApJ/725/2017 : Sloan i-band light curve of HAT-P-24 (Kipping+, 2010)J/ApJ/696/1950 : Sloan iz light curves of HAT-P-10 (Bakos+, 2009)J/ApJ/706/785 : HAT-P-12 light curve (Hartman+, 2009)http://exoplanets.org/ : Exoplanet orbit databasehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/749/134https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/749/134http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/749/134https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/749/134https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/749/134http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/749/134GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJ/749/134/table1Relative radial velocities, bisector spans, and activity index measurements of HAT-P-17recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date (BJD-2450000)dtime.epochdoubleRV[-104/57]? Radial velocity (1)m/sphys.veloc;pos.heliocentricfloatnullablee_RV[1/3]? RV 1{sigma} uncertainty (2)m/sstat.errorfloatnullableBS[-22/11]? Bisector spanm/sphys.velocfloatnullablee_BS[4/8]? BS 1{sigma} uncertaintym/sstat.errorfloatnullableS[0.0044/0.005]? Relative chromospheric activity index (3)meta.code;spect.indexfloatnullablee_S? 1{sigma} uncertainty in Sstat.errordoublenullableJ/ApJ/749/134/table3High-precision differential photometry of HAT-P-17recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date (BJD-2450000)dtime.epochdoublemag[-0.013/0.034] Differential magnitude (1)magphot.mag;arith.diffdoublee_mag[0.0003/0.002] The 1{sigma} error in magmagstat.error;phot.magdoubleOmag[7.39/10.02] Original, observed magnitude (2)magphot.magdoubleFilt[IRiz] Filter used (I for Konkoly Schmidt 0.6m, R for Wise 0.46m and 1m, and z or i for KeplerCam/FLWO 1.2m)instr.setupchar