J/A+A/576/A134ivo://CDS.VizieR/J/A+A/576/A134doi:10.26093/cds/vizier.35760134CDSMartins J.H.C.Santos N.C.Figueira P.Faria J.P.Montalto M.,Boisse I.Ehrenreich D.Lovis C.Mayor M.Melo C.Pepe F.Sousa S.,Udry S.Cunha D.2017-06-20T13:16:06Z2015-04-22T08:19:06ZCDS support team

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

cds-question@unistra.frmultiple-starsradial-velocityThe detection of reflected light from an exoplanet is a difficult technical challenge at optical wavelengths. Even though this signal is expected to replicate the stellar signal, not only is it several orders of magnitude fainter, but it is also hidden among the stellar noise. We apply a variant of the cross-correlation technique to HARPS observations of 51 Peg to detect the reflected signal from planet 51 Peg b. Our method makes use of the cross-correlation function (CCF) of a binary mask with high-resolution spectra to amplify the minute planetary signal that is present in the spectra by a factor proportional to the number of spectral lines when performing the cross correlation. The resulting cross-correlation functions are then normalized by a stellar template to remove the stellar signal. Carefully selected sections of the resulting normalized CCFs are stacked to increase the planetary signal further. The recovered signal allows probing several of the planetary properties, including its real mass and albedo.2015A&A...576A.134Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/576/A134CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/576/A134https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/576/A134http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/576/A134https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/576/A134https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/576/A134http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/576/A134GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/576/A134/51pegrvList of radial velocities for the observations of star 51 Peg collected under ESO program 091.C-0271recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJD[56451/56566] Julian Date (JD-2400000)dtime.epochdoubleRV[-32.2/-33.1] Radial velocitykm/sphys.veloc;pos.heliocentricdoublee_RV[0.00051/0.00084] rms uncertainty on RVkm/sstat.errordouble