J/MNRAS/474/5158ivo://CDS.VizieR/J/MNRAS/474/5158doi:10.26093/cds/vizier.74745158CDSGoyal J.M.Mayne N.Sing D.K.Drummond B.Tremblin P.Amundsen D.S.,Evans T.Carter A.L.Spake J.Baraffe I.Nikolov N.Manners J.,Chabrier G.Hebrard E.2024-08-18T20:17:43Z2021-04-19T13:24:24ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsstellar-massesstellar-radiieffective-temperatureWe present a grid of forward model transmission spectra, adopting an isothermal temperature-pressure profile, alongside corresponding equilibrium chemical abundances for 117 observationally significant hot exoplanets (equilibrium temperatures of 547-2710K). This model grid has been developed using a 1D radiative-convective-chemical equilibrium model termed ATMO, with up-to-date high-temperature opacities. We present an interpretation of observations of 10 exoplanets, including best-fitting parameters and {chi}^2^ maps. In agreement with previous works, we find a continuum from clear to hazy/cloudy atmospheres for this sample of hot Jupiters. The data for all the 10 planets are consistent with subsolar to solar C/O ratio, 0.005 to 10 times solar metallicity and water rather than methane-dominated infrared spectra. We then explore the range of simulated atmospheric spectra for different exoplanets, based on characteristics such as temperature, metallicity, C/O ratio, haziness and cloudiness. We find a transition value for the metallicity between 10 and 50 times solar, which leads to substantial changes in the transmission spectra. We also find a transition value of C/O ratio, from water to carbon species dominated infrared spectra, as found by previous works, revealing a temperature dependence of this transition point ranging from ~0.56 to ~1-1.3 for equilibrium temperatures from ~900 to ~2600K. We highlight the potential of the spectral features of HCN and C2H2 to constrain the metallicities and C/O ratios of planets, using James Webb Space Telescope (JWST) observations. Finally, our entire grid (~460000 simulations) is publicly available and can be used directly with the JWST simulator PandExo for planning observations.2018MNRAS.474.5158Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/474/5158CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-tohttp://www.astro.keele.ac.uk/jkt/tepcat : TEPCAT databasehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/474/5158https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/474/5158http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/474/5158https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/474/5158https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/474/5158http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/474/5158GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/474/5158/tabled1 (All the stellar and planetary parameters adopted from TEPCAT (Southworth, 2011MNRAS.417.2166S) data base, for the model simulations of 117 exoplanets in the grid)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/474/5158/tabled1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/474/5158/tabled1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/474/5158/tabled1?GETtext/xml+votable180.050000true133.149213928.33082140.0055555555555555566/790 876 935 960 1292 2250 2335 2532 2596 2953 4632 4651 4990 5009 5170 6349 6638 7208 9173 9355 9459 9482 10407 10654 10701 10730 11279 12342 12424 12486 12644 12983 13143 13680 13702 13941 14825 14914 15029 15160 16768 16947 17851 18208 18943 20116 20339 20780 21079 21254 21876 22001 22519 22816 22963 24409 24981 25132 25194 25604 25885 26019 26062 26727 26771 26844 28400 28548 29683 30009 30013 30344 30485 31216 31541 32217 32748-32749 33157 33723 33798 34471 34708 34812 34898 35456 36196 38452 38644 39007 39512 39542 39611 42936 43233 43336 43625 43775 43847 43865 43960 44471 44648 46058 46316 46429 46437 47000 47154 47456 47476 47681 48005 48178 48803 48945 491033.322582951404819e-19 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/474/5158?format=asciidefaultJ/MNRAS/474/5158/tabled1All the stellar and planetary parameters adopted from TEPCAT (Southworth, 2011MNRAS.417.2166S) data base, for the model simulations of 117 exoplanets in the gridSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSystemSystem name (1)meta.id;meta.maincharTstarStellar temperatureKphys.temperatureint[Fe/H]starStellar metallicityphys.abund.FefloatMstarStellar masssolMassphys.massfloatRstarStellar radiussolRadphys.size.radiusfloatloggstarStellar gravitylog(cm.s**-2)phys.gravityfloataSemimajor axisAUphys.size.smajAxisfloatMpPlanetary mass(1.898187x10+27kg)phys.massfloatRpPlanetary radius(7.1492x10+7m)phys.angSize;srcfloatgpPlanetary surface gravitym.s**-2phys.gravityfloatTeqpPlanetary equilibrium temperature (2)Kphys.temperatureintVmagV magnitude of the host starmagphot.mag;em.opt.VfloatRef1Discovery paper reference in refs.dat filemeta.ref;pos.framecharRef2Most updated reference in refs.dat filemeta.ref;pos.framechar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/MNRAS/474/5158/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference codemeta.notecharBibCodeBibCodemeta.bib.bibcodecharComCommentsmeta.notechar