J/A+A/620/A128ivo://CDS.VizieR/J/A+A/620/A128doi:10.26093/cds/vizier.36200128CDSVioque M.Oudmaijer R.D.Baines D.Mendigutia I.Perez-Martinez R.2018-12-10T08:51:24Z2018-12-07T09:26:58ZCDS support team

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

cds-question@unistra.frpre-main-sequence-starsemission-line-starsbe-starseffective-temperaturephotometrystellar-distancestellar-agesstellar-massesWe use Gaia Data Release 2 (DR2, Cat. I/345) to place 252 Herbig Ae/Be stars in the HR diagram and investigate their characteristics and properties. For all known Herbig Ae/Be stars with parallaxes in Gaia DR2, we collected their atmospheric parameters and photometric and extinction values from the literature. To these data we added near- and mid-infrared photometry, collected Halpha emission line properties such as equivalent widths and line profiles, and their binarity status. In addition, we developed a photometric variability indicator from Gaia's DR2 information. We provide masses, ages, luminosities, distances, photometric variabilities and infrared excesses homogeneously derived for the most complete sample of Herbig Ae/Be stars to date. We find that high mass stars have a much smaller infrared excess and have much lower optical variabilities compared to lower mass stars, with the break at around 7M_{sun}_. Halpha emission is generally correlated with infrared excess, with the correlation being stronger for infrared emission at wavelengths tracing the hot dust closest to the star. The variability indicator as developed by us shows that approximately 25% of all Herbig Ae/Be stars are strongly variable. We observe that the strongly variable objects display doubly peaked Halpha line profiles, indicating an edge-on disk. The fraction of strongly variable Herbig Ae stars is close to that found for A-type UX Ori stars. It had been suggested that this variability is in most cases due to asymmetric dusty disk structures seen edge-on. The observation here is in strong support of this hypothesis. Finally, the difference in dust properties occurs at 7M_{sun}_, while various properties traced at UV/optical wavelengths differ at a lower mass, 3M_{sun}_. The latter has been linked to different accretion mechanisms at work whereas the differing infrared properties and photometric variabilities are related to different or differently acting (dust-)disk dispersal mechanisms.2018A&A...620A.128Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/620/A128CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)J/A+A/620/A127 : Cassification of RR Lyrae and Cepheid (Molnar+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/620/A128https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/620/A128http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/620/A128https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/620/A128https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/620/A128http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/620/A128GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/620/A128/hqsample (Main parameters of each Herbig Ae/Be star belonging to the high quality 218 sources (table 1))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/620/A128/hqsample?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/620/A128/hqsample?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/620/A128/hqsample?GETtext/xml+votable180.050000true73.9412530.5511110.005555555555555556Cone search capability for table J/A+A/620/A128/lqsample (Main parameters of each Herbig Ae/Be star belonging to the low quality 34 sources (table 2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/620/A128/lqsample?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/620/A128/lqsample?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/620/A128/lqsample?GETtext/xml+votable180.050000true350.602917-2.2283330.0055555555555555566/852 862 1113-1114 1168 1545 1591 3004 3038 3057 3071 3245 14002 14031 14040 14063 14257 14311 14344 14346 14372 14440 14449 14647 14685 14687 14692 14694 14696 14700 15368 15370 15409 15432 15478 15637 15643 15683-15684 15701 15759 15798 15840 15851 15965 16131 17421 18741 20761 20831 20934 21255 21274 21285 21316 21336-21337 21354 21396 21402 21418 21421 21430 21436 21438-21439 21456-21458 21480 21541 21643 21646 21648 22020 22023 22047 22080 22235 22804 22828-22829 22841 22854-22856 22860-22861 22863 22873 22882 22886 22892 22895 22905 22911 22981 23003 23637 23641 23644 23646 23717 23727 23736 23767 23795 23798 23850 23970 24139 24156 24277 24279 24281 24419 24425 24449 28762 28908 28918 28921 29191 29193 29207 29253 29358 29452 29463 29478 29558 30188 30242-30243 30251 30258 30363 30406 30419 30462 30632 30694 31259 32065 33111 34926 36651 36956 37169 37186 37244 37334 37353 37362 37366 37676 37714 37746 37851 37871 37883 37886 37890 37905 37916 37932 37934 37978 38002 38032 39163 39179 39228 39259-39260 39290 39365 39883 39908-39909 39926 39929 40611 41132 41472 41662 41669 41698 41734 41746 41767 41812 42171 42217 42360 42382 42392 42429 42437 42455 42492 42496 42595 42611 42644 42931 42972 42988 43014 43035 43052 43235 43444 43637 43796 44049 44301 44317 44356 44362 47828 489333.322582951404819e-19 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/620/A128?format=asciidefaultJ/A+A/620/A128/hqsampleMain parameters of each Herbig Ae/Be star belonging to the high quality 218 sources (table 1)SimbadNameSimbad column added by the CDSmeta.idcharE_E(MIR)? Upper error of Mid_IR_excessstat.error;stat.maxdoublenullablee_E(MIR)? Lower error of Mid_IR_excessstat.errordoublenullableEWHa? Halpha equivalent width, from the literature. Negative numbers indicate emission0.1nmspect.line.eqWidth;em.line.HalphadoublenullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the Herbig Ae/Be starmeta.id;meta.maincharRAICRSRight ascension from Gaia DR2 (ICRS at epoch 2015.5)pos.eq.ra;meta.mainDEICRSDeclination from Gaia DR2 (ICRS at epoch 2015.5)pos.eq.dec;meta.mainplxParallax from Gaia DR2maspos.parallax.trigdoublee_plxParallax uncertainty from Gaia DR2masstat.error;pos.parallaxdoubleDistDistance derived using an exponentially decreasing density priorpcpos.distance;pos.heliocentricfloatE_DistUpper error on the Distance, to the 95th percentile confidence interval on the Distance estimatepcstat.error;stat.maxfloate_DistLower error on the Distance, to the 5th percentile confidence interval on the Distance estimatepcstat.errorfloatTeffEffective temperature from the literature (1)Kphys.temperature.effectiveintE_TeffUpper error of TeffKstat.error;stat.maxinte_TeffLower error of TeffKstat.error;phys.temperature.effectiveintLogLDecimal logarithm of the luminositylog(solLum)phys.luminosityfloatE_LogLUpper error of LogLlog(solLum)stat.error;stat.maxfloate_LogLLower error of LogLlog(solLum)stat.errorfloatAvTotal extinction (1)magphys.absorptionfloatE_AvUpper error of Avmagstat.error;stat.maxfloate_AvLower error of Avmagstat.errorfloatVJohnson V band magnitude (1)magphot.mag;em.opt.VfloatBin[Yes ] Binarity status: "Yes" if the source has been classified as binary, nothing otherwisemeta.code.multipcharr_Bin? References for Binary column (in ref.dat file)meta.ref;pos.frameintnullableE(NIR)? Infrared excess in the 1.24-3.4um interval. Derived following Equation 2 of the paperphot.flux;arith.ratiodoublenullableE_E(NIR)? Upper error of Near_IR_excessstat.error;stat.maxdoublenullablee_E(NIR)? Lower error of Near_IR_excessstat.errordoublenullableE(MIR)? Infrared excess in the 3.4-22um interval. Derived following Equation 2 of the paperphot.flux;arith.ratiodoublenullablee_EWHa? Uncertainty of EWHa, from the literature0.1nmstat.errorfloatnullabler_EWHa? References for EWHa and e_EWHa columns (in refs.dat file)meta.ref;pos.frameintnullableHashapeLine profile of the Halpha line, from the literature (2)spect.line.profile;em.line.Halphacharr_Hashape? References for Hashape (in refs.dat file)meta.ref;pos.frameintnullableVi? Variability indicator. Derived following Equation 4 of the paper (3)meta.code;src.varfloatnullableUXOR[Yes ] UXOR status: "Yes" if the source has been classified as UXOR type, nothing otherwisemeta.code.status;src.classcharMass? Mass of the sourcesolMassphys.massfloatnullableE_Mass? Upper error of the MasssolMassstat.error;stat.maxfloatnullablee_Mass? Lower error of the MasssolMassstat.error;phys.massfloatnullableAge? Age of the sourceMyrtime.agedoublenullableE_Age? Upper error of the AgeMyrstat.error;stat.maxdoublenullablee_Age? Lower error of the AgeMyrstat.error;time.agedoublenullableE(J)? Infrared excess at the J band (1.24um) (4)phot.flux;arith.ratiofloatnullableE(H)? Infrared excess at the H band (1.66um) (4)phot.flux;arith.ratiofloatnullableE(Ks)? Infrared excess at the Ks band (2.16um) (4)phot.flux;arith.ratiofloatnullableE(W1)? Infrared excess at the W1 band (3.4um) (4)phot.flux;arith.ratiofloatnullableE(W2)? Infrared excess at the W2 band (4.6um) (4)phot.flux;arith.ratiodoublenullableE(W3)? Infrared excess at the W3 band (12um) (4)phot.flux;arith.ratiodoublenullableE(W4)? Infrared excess at the W4 band (22um) (4)phot.flux;arith.ratiodoublenullableThe[Yes ] Yes if the source appears in Table 1 of The et al. (1994A&AS..104..315T), nothing otherwisemeta.codechar_RA.icrsRight ascension (ICRS) at Epoch=J2015.5 (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) at Epoch=J2015.5 (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)pos.eq.decnullableindexedJ/A+A/620/A128/lqsampleMain parameters of each Herbig Ae/Be star belonging to the low quality 34 sources (table 2)SimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the Herbig Ae/Be starmeta.id;meta.maincharRAICRSRight ascension from Gaia DR2 (ICRS at epoch 2015.5)pos.eq.ra;meta.mainDEICRSDeclination from Gaia DR2 (ICRS at epoch 2015.5)pos.eq.dec;meta.mainplxParallax from Gaia DR2maspos.parallax.trigdoublee_plxParallax uncertainty from Gaia DR2masstat.error;pos.parallaxdoubleDistDistance derived using an exponentially decreasing density priorpcpos.distance;pos.heliocentricfloatE_DistUpper error on the Distance, to the 95th percentile confidence interval on the Distance estimatepcstat.error;stat.maxfloate_DistLower error on the Distance, to the 5th percentile confidence interval on the Distance estimatepcstat.errorfloatTeffEffective temperature from the literature (1)Kphys.temperature.effectiveintE_TeffUpper error of TeffKstat.error;stat.maxinte_TeffLower error of TeffKstat.error;phys.temperature.effectiveintLogLDecimal logarithm of the luminositylog(solLum)phys.luminosityfloatE_LogLUpper error of LogLlog(solLum)stat.error;stat.maxfloate_LogLLower error of LogLlog(solLum)stat.errorfloatAvTotal extinction (1)magphys.absorptionfloatE_AvUpper error of Avmagstat.error;stat.maxfloate_AvLower error of Avmagstat.errorfloatVJohnson V band magnitude (1)magphot.mag;em.opt.VfloatBin[Yes ] Binarity status: "Yes" if the source has been classified as binary, nothing otherwisemeta.code.multipcharr_Bin? References for Binary column (in ref.dat file)meta.ref;pos.frameintnullableE(NIR)? Infrared excess in the 1.24-3.4um interval. Derived following Equation 2 of the paperphot.flux;arith.ratiodoublenullableE_E(NIR)? Upper error of Near_IR_excessstat.error;stat.maxdoublenullablee_E(NIR)? Lower error of Near_IR_excessstat.errordoublenullableE(MIR)? Infrared excess in the 3.4-22um interval. Derived following Equation 2 of the paperphot.flux;arith.ratiodoublenullableE_E(MIR)? Upper error of Mid_IR_excessstat.error;stat.maxdoublenullablee_E(MIR)? Lower error of Mid_IR_excessstat.errordoublenullableEWHa? Halpha equivalent width, from the literature. Negative numbers indicate emission0.1nmspect.line.eqWidth;em.line.Halphadoublenullablee_EWHa? Uncertainty of EWHa, from the literature0.1nmstat.errorfloatnullabler_EWHa? References for EWHa and e_EWHa columns (in refs.dat file)meta.ref;pos.frameintnullableHashapeLine profile of the Halpha line, from the literature (2)spect.line.profile;em.line.Halphacharr_Hashape? References for Hashape (in refs.dat file)meta.ref;pos.frameintnullableVi? Variability indicator. Derived following Equation 4 of the paper (3)meta.code;src.varfloatnullableUXOR[Yes ] UXOR status: "Yes" if the source has been classified as UXOR type, nothing otherwisemeta.code.status;src.classcharMass? Mass of the sourcesolMassphys.massfloatnullableE_Mass? Upper error of the MasssolMassstat.error;stat.maxfloatnullablee_Mass? Lower error of the MasssolMassstat.error;phys.massfloatnullableAge? Age of the sourceMyrtime.agedoublenullableE_Age? Upper error of the AgeMyrstat.error;stat.maxdoublenullablee_Age? Lower error of the AgeMyrstat.error;time.agedoublenullableE(J)? Infrared excess at the J band (1.24um) (4)phot.flux;arith.ratiofloatnullableE(H)? Infrared excess at the H band (1.66um) (4)phot.flux;arith.ratiofloatnullableE(Ks)? Infrared excess at the Ks band (2.16um) (4)phot.flux;arith.ratiofloatnullableE(W1)? Infrared excess at the W1 band (3.4um) (4)phot.flux;arith.ratiofloatnullableE(W2)? Infrared excess at the W2 band (4.6um) (4)phot.flux;arith.ratiodoublenullableE(W3)? Infrared excess at the W3 band (12um) (4)phot.flux;arith.ratiodoublenullableE(W4)? Infrared excess at the W4 band (22um) (4)phot.flux;arith.ratiodoublenullableThe[Yes ] Yes if the source appears in Table 1 of The et al. (1994A&AS..104..315T), nothing otherwisemeta.codechar_RA.icrsRight ascension (ICRS) at Epoch=J2015.5 (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) at Epoch=J2015.5 (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)pos.eq.decnullableindexedJ/A+A/620/A128/refsReferencesRefReference numbermeta.id;meta.mainintBibCodeBibCodemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint