J/MNRAS/493/234ivo://CDS.VizieR/J/MNRAS/493/234doi:10.26093/cds/vizier.74930234CDSWichittanakom C.Oudmaijer R.D.Fairlamb J.R.Mendigutia I.,Vioque M.Ababakr K.M.2024-08-20T20:16:17Z2020-11-10T14:52:00ZCDS support team

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

cds-question@unistra.frpre-main-sequence-starsbe-starsemission-line-starsline-intensitiesThis work presents a spectroscopic study of 163 Herbig Ae/Be stars. Amongst these, we present new data for 30 objects. Stellar parameters such as temperature, reddening, mass, luminosity, and age are homogeneously determined. Mass accretion rates are determined from H{alpha} emission line measurements. Our data is complemented with the X-Shooter sample from previous studies and we update results using Gaia DR2 parallaxes giving a total of 78 objects with homogeneously determined stellar parameters and mass accretion rates. In addition, mass accretion rates of an additional 85 HAeBes are determined. We confirm previous findings that the mass accretion rate increases as a function of stellar mass, and the existence of a different slope for lower and higher mass stars, respectively. The mass where the slope changes is determined to be 3.98^+1.37_-0.94M_{sun}_. We discuss this break in the context of different modes of disc accretion for low- and high-mass stars. Because of their similarities with T Tauri stars, we identify the accretion mechanism for the late-type Herbig stars with the Magnetospheric Accretion. The possibilities for the earlier-type stars are still open, we suggest the Boundary Layer accretion model may be a viable alternative. Finally, we investigated the mass accretion-age relationship. Even using the superior Gaia based data, it proved hard to select a large enough sub-sample to remove the mass dependence in this relationship. Yet, it would appear that the mass accretion does decline with age as expected from basic theoretical considerations.2020MNRAS.493..234Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/493/234CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/453/976 : Herbig Ae/Be X-shooter observations (Fairlamb+, 2015)J/A+A/620/A128 : Gaia DR2 study of Herbig Ae/Be stars (Vioque+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/493/234https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/493/234http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/493/234https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/493/234https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/493/234http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/493/234GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/493/234/main (Astrophysical parameters and accretion properties of Northern Herbig Ae/Be stars (Tables 2 and 3))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/493/234/main?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/493/234/main?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/493/234/main?GETtext/xml+votable180.050000true10.82583361.9111390.005555555555555556Cone search capability for table J/MNRAS/493/234/tablec (Astrophysical parameters and accretion properties of Herbig Ae/Be stars in Fairlamb et al. (2015MNRAS.453..976F, Cat. J/MNRAS/453/976) (Tables C1 and C2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/493/234/tablec?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/493/234/tablec?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/493/234/tablec?GETtext/xml+votable180.050000true76.124583-3.7872780.005555555555555556Cone search capability for table J/MNRAS/493/234/tabled (Accretion properties of Herbig Ae/Be stars in Vioque et al. (2018, Cat. J/A+A/620/A128))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/493/234/tabled?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/493/234/tabled?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/493/234/tabled?GETtext/xml+votable180.050000true1.76083365.6439720.0055555555555555566/852 862 1113-1114 1168 1545 1591 3004 3038 3057 3071 3245 13736 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 16131-16132 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 23636-23637 23641 23644 23646 23717 23727 23736 23739 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 48933https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/493/234?format=asciidefaultJ/MNRAS/493/234/mainAstrophysical parameters and accretion properties of Northern Herbig Ae/Be stars (Tables 2 and 3)E_TeffUpper error of effective temperatureKstat.error;stat.maxinte_TeffLower error of effective temperatureKstat.error;phys.temperature.effectiveintloggDecimal logarithm of the surface gravitylog(cm.s**-2)phys.gravityfloatE_loggUpper error of decimal logarithm of the surface gravitylog(cm.s**-2)stat.error;stat.maxfloate_loggLower error of decimal logarithm of the surface gravitylog(cm.s**-2)stat.errorfloatAVVisual extinctionmagphys.absorptionfloatE_AVUpper error of visual extinctionmagstat.error;stat.maxfloate_AVLower error of visual extinctionmagstat.errorfloatDist? Distance is obtained from Vioque et al. (2018, Cat. J/A+A/620/A128)pcpos.distancefloatnullableE_Dist? Upper error of distance from Vioque et al. (2018, Cat. J/A+A/620/A128)pcstat.error;stat.maxfloatnullablee_Dist? Lower error of distance from Vioque et al. (2018, Cat. J/A+A/620/A128)pcstat.errorfloatnullableRad? RadiussolRadphys.size.radiusfloatnullableE_Rad? Upper error of radiussolRadstat.error;stat.maxfloatnullablee_Rad? Lower error of radiussolRadstat.errorfloatnullablelogL? Decimal logarithm of the luminositylog(solLum)phys.luminosityfloatnullableE_logL? Upper error of decimal logarithm of the luminositylog(solLum)stat.error;stat.maxfloatnullablee_logL? Lower error of decimal logarithm of the luminositylog(solLum)stat.errorfloatnullableMass? MasssolMassphys.massfloatnullableE_Mass? Upper error of masssolMassstat.error;stat.maxfloatnullablee_Mass? Lower error of masssolMassstat.error;phys.massfloatnullableAge? AgeMyrtime.agefloatnullableE_Age? Upper error of ageMyrstat.error;stat.maxfloatnullablee_Age? Lower error of ageMyrstat.error;time.agefloatnullableHaprofHalpha_profile (1)meta.codecharEWobsObserved equivalent width0.1nmspect.line.eqWidthfloate_EWobsUncertainty of observed equivalent width0.1nmstat.errorfloatEWintIntrinsic equivalent width0.1nmspect.line.eqWidthfloate_EWintUncertainty of intrinsic equivalent width0.1nmstat.errorfloatEWcorCorrected equivalent width0.1nmspect.line.eqWidthfloate_EWcorUncertainty of corrected equivalent width0.1nmstat.errorfloatFlambdaContinuum flux density at central wavelength of the Halpha profile (in W/m^2^/{AA})10W.m**-2.nm**-1phot.flux;em.line.HalphadoubleFlineLine flux10W.m**-2phot.flux;spect.linedoublee_FlineUncertainty of line flux10W.m**-2stat.errordoublelogLline? Decimal logarithm of the line luminositylog(solLum)phys.luminosityfloatnullableE_logLline? Upper error of decimal logarithm of the line luminositylog(solLum)stat.error;stat.maxfloatnullablee_logLline? Lower error of decimal logarithm of the line luminositylog(solLum)stat.errorfloatnullablelogLacc? Decimal logarithm of the accretion luminositylog(solLum)phys.luminosityfloatnullableE_logLacc? Upper error of decimal logarithm of the accretion luminositylog(solLum)stat.error;stat.maxfloatnullablee_logLacc? Lower error of decimal logarithm of the accretion luminositylog(solLum)stat.errorfloatnullablelogdM/dt? Decimal logarithm of the mass accretion ratelog(solMass.yr**-1)arith.rate;phys.massfloatnullablee_logdM/dt? Lower error of decimal logarithm of the mass accretion ratelog(solMass.yr**-1)stat.errorfloatnullableNameObject namemeta.id;meta.maincharSimbadSimbad column added by the CDSmeta.ref.urlcharE_logdM/dt? Upper error of decimal logarithm of the mass accretion ratelog(solMass.yr**-1)stat.error;stat.maxfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainTeffEffective temperatureKphys.temperature.effectiveintJ/MNRAS/493/234/tablecAstrophysical parameters and accretion properties of Herbig Ae/Be stars in Fairlamb et al. (2015MNRAS.453..976F, Cat. J/MNRAS/453/976) (Tables C1 and C2)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainTeffEffective temperature from Fairlamb et al. (2015, J/MNRAS/453/976)Kphys.temperature.effectiveintE_TeffUpper error of effective temperature from Fairlamb et al. (2015, J/MNRAS/453/976)Kstat.error;stat.maxinte_TeffLower error of effective temperature from Fairlamb et al. (2015, J/MNRAS/453/976)Kstat.error;phys.temperature.effectiveintloggDecimal logarithm of the surface gravity from Fairlamb et al. (2015, J/MNRAS/453/976)log(cm.s**-2)phys.gravityfloatE_loggUpper error of decimal logarithm of the surface gravity from Fairlamb et al. (2015, J/MNRAS/453/976)log(cm.s**-2)stat.error;stat.maxfloate_loggLower error of decimal logarithm of the surface gravity from Fairlamb et al. (2015, J/MNRAS/453/976)log(cm.s**-2)stat.errorfloatAVVisual extinctionmagphys.absorptionfloatE_AVUpper error of visual extinctionmagstat.error;stat.maxfloate_AVLower error of visual extinctionmagstat.errorfloatDist? Distance is obtained from Vioque et al. (2018, J/A+A/620/A128)pcpos.distancefloatnullableE_Dist? Upper error of distance from Vioque et al. (2018, J/A+A/620/A128)pcstat.error;stat.maxfloatnullablee_Dist? Lower error of distance from Vioque et al. (2018, J/A+A/620/A128)pcstat.errorfloatnullableE_Rad? Upper error of radiussolRadstat.error;stat.maxfloatnullablee_Rad? Lower error of radiussolRadstat.errorfloatnullablelogL? Decimal logarithm of the luminositylog(solLum)phys.luminosityfloatnullableE_logL? Upper error of decimal logarithm of the luminositylog(solLum)stat.error;stat.maxfloatnullablee_logL? Lower error of decimal logarithm of the luminositylog(solLum)stat.errorfloatnullableMass? MasssolMassphys.massfloatnullableE_Mass? Upper error of masssolMassstat.error;stat.maxfloatnullablee_Mass? Lower error of masssolMassstat.error;phys.massfloatnullableAge? AgeMyrtime.agefloatnullableE_Age? Upper error of ageMyrstat.error;stat.maxfloatnullablee_Age? Lower error of ageMyrstat.error;time.agefloatnullableEWobsObserved equivalent width from Fairlamb et al. (2017MNRAS.464.4721F)0.1nmspect.line.eqWidthfloate_EWobsUncertainty of observed equivalent width from Fairlamb et al. (2017MNRAS.464.4721F)0.1nmstat.errorfloatEWintIntrinsic equivalent width from Fairlamb et al. (2017MNRAS.464.4721F)0.1nmspect.line.eqWidthfloate_EWintUncertainty of intrinsic equivalent width from Fairlamb et al. (2017MNRAS.464.4721F)0.1nmstat.errorfloatEWcorCorrected equivalent width from Fairlamb et al. (2017MNRAS.464.4721F)0.1nmspect.line.eqWidthfloate_EWcorUncertainty of corrected equivalent width from Fairlamb et al. (2017MNRAS.464.4721F)0.1nmstat.errorfloatFlambdaContinuum flux density at central wavelength of the Halpha profile (in W/m^2^/{AA}) from Fairlamb et al. (2017MNRAS.464.4721F)10W.m**-2.nm**-1phot.flux;em.line.HalphadoublelogLline? Decimal logarithm of the line luminositylog(solLum)phys.luminosityfloatnullableE_logLline? Upper error of decimal logarithm of the line luminositylog(solLum)stat.error;stat.maxfloatnullablee_logLline? Lower error of decimal logarithm of the line luminositylog(solLum)stat.errorfloatnullablelogLacc? Decimal logarithm of the accretion luminositylog(solLum)phys.luminosityfloatnullableE_logLacc? Upper error of decimal logarithm of the accretion luminositylog(solLum)stat.error;stat.maxfloatnullablee_logLacc? Lower error of decimal logarithm of the accretion luminositylog(solLum)stat.errorfloatnullablelogdM/dt? Decimal logarithm of the mass accretion ratelog(solMass.yr**-1)arith.rate;phys.massfloatnullableE_logdM/dt? Upper error of decimal logarithm of the mass accretion ratelog(solMass.yr**-1)stat.error;stat.maxfloatnullablee_logdM/dt? Lower error of decimal logarithm of the mass accretion ratelog(solMass.yr**-1)stat.errorfloatnullableNameObject namemeta.id;meta.maincharSimbadNameSimbad column added by the CDSmeta.idcharnullableFline? Line flux10W.m**-2phot.flux;spect.linedoublenullablee_Fline? Uncertainty of line flux10W.m**-2stat.errordoublenullableRad? RadiussolRadphys.size.radiusfloatnullableJ/MNRAS/493/234/tabledAccretion properties of Herbig Ae/Be stars in Vioque et al. (2018, Cat. J/A+A/620/A128)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject namemeta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainEWobs? Observed equivalent width0.1nmspect.line.eqWidthdoublenullablee_EWobs? Uncertainty of observed equivalent width0.1nmstat.errorfloatnullabler_EWobs? References for observed equivalent width (1)meta.ref;pos.frameintnullableEWintIntrinsic equivalent width0.1nmspect.line.eqWidthfloate_EWintUncertainty of intrinsic equivalent width0.1nmstat.errorfloatEWcor? Corrected equivalent width0.1nmspect.line.eqWidthdoublenullablee_EWcor? Uncertainty of corrected equivalent width0.1nmstat.errorfloatnullableFlambdaContinuum flux density at central wavelength of the Halpha profile (in W/m^2^/{AA})10W.m**-2.nm**-1phot.flux;em.line.HalphadoubleFline? Line fluxW.m**-2phot.flux;spect.linedoublenullablee_Fline? Uncertainty of line fluxW.m**-2stat.errordoublenullablelogLline? Decimal logarithm of the line luminositylog(solLum)phys.luminosityfloatnullableE_logLline? Upper error of decimal logarithm of the line luminositylog(solLum)stat.error;stat.maxfloatnullablee_logLline? Lower error of decimal logarithm of the line luminositylog(solLum)stat.errorfloatnullablelogLacc? Decimal logarithm of the accretion luminositylog(solLum)phys.luminosityfloatnullableE_logLacc? Upper error of decimal logarithm of the accretion luminositylog(solLum)stat.error;stat.maxfloatnullablee_logLacc? Lower error of decimal logarithm of the accretion luminositylog(solLum)stat.errorfloatnullablelogdM/dt? Decimal logarithm of the mass accretion ratelog(solMass.yr**-1)arith.rate;phys.massfloatnullableE_logdM/dt? Upper error of decimal logarithm of the mass accretion ratelog(solMass.yr**-1)stat.error;stat.maxfloatnullablee_logdM/dt? Upper error of decimal logarithm of the mass accretion ratelog(solMass.yr**-1)stat.errorfloatnullableSimbadNameSimbad column added by the CDSmeta.idcharnullable