J/AJ/152/180ivo://CDS.VizieR/J/AJ/152/180doi:10.26093/cds/vizier.51520180CDSStassun K.G.Torres G.2018-01-05T08:57:04Z2017-03-10T08:07:12ZCDS support team

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

cds-question@unistra.freclipsing-binary-starseffective-temperatureinterstellar-reddeningmetallicityextinctionvisible-astronomytrigonometric-parallaxspectral-energy-distributionstellar-distanceWe present fits to the broadband photometric spectral energy distributions (SEDs) of 158 eclipsing binaries (EBs) in the Tycho-2 catalog. These EBs were selected because they have highly precise stellar radii, effective temperatures, and in many cases metallicities previously determined in the literature, and thus have bolometric luminosities that are typically good to <~10%. In most cases the available broadband photometry spans a wavelength range 0.4-10{mu}m, and in many cases spans 0.15-22{mu}m. The resulting SED fits, which have only extinction as a free parameter, provide a virtually model-independent measure of the bolometric flux at Earth. The SED fits are satisfactory for 156 of the EBs, for which we achieve typical precisions in the bolometric flux of {\simeq}3%. Combined with the accurately known bolometric luminosity, the result for each EB is a predicted parallax that is typically precise to <~5%. These predicted parallaxes-with typical uncertainties of 200{mu}as-are 4-5 times more precise than those determined by Hipparcos for 99 of the EBs in our sample, with which we find excellent agreement. There is no evidence among this sample for significant systematics in the Hipparcos parallaxes of the sort that notoriously afflicted the Pleiades measurement. The EBs are distributed over the entire sky, span more than 10mag in brightness, reach distances of more than 5kpc, and in many cases our predicted parallaxes should also be more precise than those expected from the Gaia first data release. The EBs studied here can thus serve as empirical, independent benchmarks for these upcoming fundamental parallax measurements.2016AJ....152..180Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/152/180CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/337 : Gaia DR1 (Gaia Collaboration, 2016)II/336 : AAVSO Photometric All Sky Survey (APASS) DR9 (Henden+, 2016)II/328 : AllWISE Data Release (Cutri+ 2013)II/312 : GALEX-DR5 (GR5) sources from AIS and MIS (Bianchi+ 2011)I/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)I/259 : The Tycho-2 Catalogue (Hog+ 2000)I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)J/A+A/580/A23 : Stroemgren-Crawford uvby{beta} photometry (Paunzen, 2015)J/AJ/150/154 : Photometry and spectroscopy of V501 Mon (Torres+, 2015)J/AJ/147/36 : Photometry and spectroscopy of AQ Ser (Torres+, 2014)J/ApJ/780/59 : Araucaria project: eclipsing binaries in SMC (Graczyk+, 2014)J/A+A/526/A29 : ASAS low-mass EBs light curves (Helminiak+, 2011)J/AJ/138/1622 : Absolute properties of LV Her (Torres+, 2009)J/AJ/137/507 : Light and velocity curves of VZ Cep (Torres+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/152/180https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/152/180http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/152/180https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/152/180https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/152/180http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/152/180GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/152/180/binaries (Stellar properties of our sample of eclipsing binaries (table1), and results of the SED fitting (table2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/152/180/binaries?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/152/180/binaries?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/152/180/binaries?GETtext/xml+votable180.050000true19.22966316.81169940.0055555555555555566/14 374 377 1182 1212 1293 1317 1344 1397 1753 2749 2849 3049 3097 3168 3238 3383 3384 3712 3830 4037 4698 4708 5044 6340 6429 6669 6783 7089 7247 7454 8081 8917 9044 9857 12372 12911 13228 13263 13281 13692 13705 13819 14130 14179 14276 14308 14442 14583 14599 14630 14644 14734 14744 14795 14878 14956 14959 15135 15137 15148 15195 15237 15415 15669 15686 15713 15803 15806 16070 16096 16226 18309 18468 18673 18722 20271 20803 20853 21394 21492 21526 21732 21866 22044 22077 22078 22249 22652 22872 22980 23236 23749 23994 24256 24415 25074 25098 25991 26125 26179 27029 28687 28711 28892 28912 30065 30343 30358 30450 31169 31174 31227 31335 31420 31572 31838 31977 32217 32382 32688 32788 33027 34914 35055 35862 36139 36936 37012 37333 37357 37592 37827 37870 37923 37933 38562 40279 40545 40656 40826 40891 41428 41715 42071 42501 42674 42791 43152 43282 43463 44795 45549 47858 47873 47948https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/152/180?format=asciiOpticaldefaultJ/AJ/152/180/refsReferencesRefReference identifierpos.frameintBibCodeBibliographic Codemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharCatVizieR catalogmeta.id;meta.tablecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJ/AJ/152/180/binariesStellar properties of our sample of eclipsing binaries (table1), and results of the SED fitting (table2)Figure11Observed and fitted eclipsing binary Spectral Energy Distributionsmeta.id;meta.filecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSystem name (G1)meta.id;pos.framecharTYC1TYC1 of Tycho namemeta.idintTYC2TYC2 of Tycho namemeta.idintTYC3TYC3 of Tycho namemeta.idintHIP[817/114484]? Hipparcos identifiermeta.idintnullableRad1[0.4323/52.12] Radius of primarysolRadphys.size.radiusfloate_Rad1[0.002/1.38] Uncertainty in Rad1solRadstat.errorfloatRad2[0.3916/67.63] Radius of secondarysolRadphys.size.radiusfloate_Rad2[0.001/1.4] Uncertainty in Rad2solRadstat.errorfloatTeff1[3160/38000] Effective temperature of primaryKphys.temperature.effectiveinte_Teff1[45/2500] Uncertainty in Teff1Kstat.errorintTeff2[3125/34100] Effective temperature of secondaryKphys.temperature.effectiveinte_Teff2[50/2500] Uncertainty in Teff2Kstat.errorintE(B-V)[0/0.85]? Reddeningmagphot.color.excessfloatnullablee_E(B-V)[0.001/0.08]? Uncertainty in E(B-V)magstat.errorfloatnullable[Fe/H]? Metallicity of the binary (1)log(Sun)phys.abund.Zchare_[Fe/H][0.01/0.21]? Uncertainty in [Fe/H]log(Sun)stat.error;phys.abund.Fefloatnullablef_[Fe/H]Metallic-line star flag (Am/Am, Am/-, -/Am) (2)meta.codecharRefLiterature reference; in refs.dat filemeta.ref;pos.framecharVmag[1.9/12.43] V band magnitudemagphot.mag;em.opt.Vfloatchi2[0.25/85.13] SED fit reduced {chi}_{nu}_^2^ valuestat.fit.param;meta.modelledfloatfit[*X] Fit flag(s) (* or X) (3)meta.codecharFbolIntegrated bolometric flux F_bol_ (in erg/s/cm^2^)mW.m**-2phot.flux.boldoubleE_FbolUpper uncertainty on FbolmW.m**-2stat.error;stat.maxfloate_FbolLower uncertainty on FbolmW.m**-2stat.errorfloatAV[0/2.29] Extinction A_V_magphys.absorptionfloatE_AV[0/0.19] Upper uncertainty on AVmagstat.error;stat.maxfloate_AV[0/0.31] Lower uncertainty on AVmagstat.errorfloatDist[14.2/5231.2] Predicted distance (4)pcpos.distance;pos.heliocentricfloatE_Dist[0.9/769.2] Upper uncertainty on Distpcstat.error;stat.maxfloate_Dist[0.9/712.1] Lower uncertainty on Distpcstat.errorfloatplx[0.19/70.58] Predicted parallaxmaspos.parallaxfloatE_plx[0.02/8.49] Upper uncertainty on plxmasstat.error;stat.maxfloate_plx[0.02/7.38] Lower uncertainty on plxmasstat.error;pos.parallaxfloatP15Number of sources in Paunzen 2015 (J/A+A/580/A23)meta.numberintnullableT10Indicates a binary system in Torres et al. 2010 (Cat. J/other/A+ARV/18.67)meta.numberintnullableUCAC4Display the data from the UCAC4 catalog (Zacharias et al. 2012, Cat. I/322) within 1''meta.ref.urlcharAPASSDisplay the data from the AAVSO Photometric All-Sky Survey (APASS) DR9 catalog (Henden et al. 2016, Cat. II/336) within 1''meta.ref.urlcharAllWISEDisplay the All-WISE data (Cutri et al. 2013, Cat. II/328) within 1''meta.ref.urlcharGaiaDisplay the Gaia DR1 data (Gaia Collaboration 2016, Cat. I/337) within 1''meta.ref.urlchar2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from Simbad database (right ascension part)degpos.eq.ra;meta.main_DEPosition from Simbad database (declination part)degpos.eq.dec;meta.main