J/AJ/164/201ivo://CDS.VizieR/J/AJ/164/201doi:10.26093/cds/vizier.51640201CDSPittman C.V.Espaillat C.C.Robinson C.E.Thanathibodee T.Calvet N.,Wendeborn J.Hernandez J.Manara C.F.Walter F.Abraham P.Alcala J.M.,Alencar S.H.P.Arulanantham N.Cabrit S.Eisloffel J.Fiorellino E.,France K.Gangi M.Grankin K.Herczeg G.J.Kospal A.Mendigutia I.,Serna J.Venuti L.2023-02-15T07:17:40Z2023-02-01T08:54:26ZCDS support team

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

cds-question@unistra.frstellar-associationspre-main-sequence-starsaccretionspectroscopyultraviolet-astronomyvisible-astronomyinfrared-astronomyThe coevolution of T-Tauri stars and their surrounding protoplanetary disks dictates the timescales of planet formation. In this paper, we present magnetospheric accretion and inner disk wall model fits to near-UV (NUV) to near-IR (NIR) spectra of nine classical T-Tauri stars in Orion OB1b as part of the Outflows and Disks around Young Stars: Synergies for the Exploration of ULLYSES Spectra (ODYSSEUS) survey. Using NUV-optical spectra from the Hubble UV Legacy Library of Young Stars as Essential Standards (ULLYSES) Director's Discretionary Program and optical-NIR spectra from the PENELLOPE VLT Large Programme, we find that the accretion rates of these targets are relatively high for the region's intermediate age of 5.0Myr; rates are in the range of (0.5-17.2)x10^-8^M{sun}/yr, with a median value of 1.2x10^-8^M{sun}/yr. The NIR excesses can be fit with 1200-1800K inner disk walls located at 0.05-0.10au from the host stars. We discuss the significance of the choice in extinction law, as the measured accretion rate depends strongly on the adopted extinction value. This analysis will be extended to the complete sample of T-Tauri stars being observed through ULLYSES to characterize accretion and inner disks in star-forming regions of different ages and stellar populations.2022AJ....164..201Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/164/201CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/362 : I-band variability of YSOs (Sergison+, 2020)J/ApJS/101/117 : UBVRIJHKLMNQ photometry in Taurus-Auriga (Kenyon+ 1995)J/AJ/129/907 : New Ori OB1 members (Briceno+, 2005)J/ApJ/756/171 : HST far-UV survey H2 emission of T Tau stars (France+, 2012)J/A+A/551/A107 : X-shooter spectra of 24 young stellar objects (Manara+, 2013)J/ApJS/208/9 : Intrinsic colors and temperatures of PMS stars (Pecaut+, 2013)J/A+A/570/A82 : Mapping accretion variability in NGC 2264 (Venuti+, 2014)J/A+A/600/A20 : Lupus YSOs X-shooter spectroscopy (Alcala+, 2017)J/A+A/605/A86 : Pre-main sequence stars VLT/X-Shooter spectra (Manara+, 2017)J/A+A/599/A23 : Accretion-rotation connection in NGC 2264 (Venuti+, 2017)J/AJ/157/85 : The CIDA Variability Survey of Orion OB1. II. (Briceno+, 2019)J/AJ/157/196 : Close companions around young stars (Kounkel+, 2019)J/AJ/160/268 : Infrared photometry of binaries Orion OB1 (Tokovinin+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/164/201https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/164/201http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/164/201https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/164/201https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/164/201http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/164/201GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/164/201/table3 (Best-fit accretion shock model parameters of Orion OB1 CTTS)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/164/201/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/164/201/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/164/201/table3?GETtext/xml+votable180.050000true82.3469269-1.42095860.0055555555555555566/22861-22862 22874 22881 22884https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/164/201?format=asciiUVOpticalInfrareddefaultJ/AJ/164/201/table3Best-fit accretion shock model parameters of Orion OB1 CTTSSimbadNameSimbad column added by the CDSmeta.idcharnullableE_f1E11[0.0001/0.03] Upper uncertainty in f1E11stat.error;stat.maxdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAV[0.05/1.44] V band extinctionmaginstr.bandpass;em.opt.V;obs.atmos.extinctionfloatE_AV[0.02/0.05] Upper uncertainty in AVmagstat.error;stat.maxfloate_AV[0.02/0.4] Lower uncertainty in AVmagstat.errorfloatRad[0.84/3.26] Stellar radiussolRadphys.size.radiusfloatE_Rad[0.07/0.4] Upper uncertainty in RadsolRadstat.error;stat.maxfloate_Rad[0.07/0.4] Lower uncertainty in RadsolRadstat.errorfloatLum[0.12/1.18] Stellar luminositysolLumphys.luminosityfloate_Lum[0.03/0.3] Uncertainty in LumsolLumstat.errorfloatLacc[0.06/0.61] Accretion luminositysolLumphys.luminosityfloatE_Lacc[0.00/0.04] Upper uncertainty in LaccsolLumstat.error;stat.maxfloate_Lacc[0.00/0.23] Lower uncertainty in LaccsolLumstat.errorfloatdMass[0.53/17.2] Accretion rate1e-08solMass.yr**-1arith.rate;phys.massfloatE_dMass[0.01/1] Upper uncertainty in dMass1e-08solMass.yr**-1stat.error;stat.maxfloate_dMass[0.01/7] Lower uncertainty in dMass1e-08solMass.yr**-1stat.errorfloatf1E10[0.0001/0.24] 1e^10^ accretion column stellar surface fraction coveredarith.ratiodoubleE_f1E10[0.0004/0.02] Upper uncertainty in f1E10stat.error;stat.maxfloate_f1E10[7e-05/0.03] Lower uncertainty in f1E10stat.errordoublef1E11[9e-05/0.02] 1e^11^ accretion column stellar surface fraction coveredarith.ratiodoublee_f1E11[3e-05/0.003] Lower uncertainty in f1E11stat.errordoublef1E12[4e-05/0.03] 1e^12^ accretion column stellar surface fraction coveredarith.ratiodoubleE_f1E12[7e-06/0.002] Upper uncertainty in f1E12stat.error;stat.maxdoublee_f1E12[2e-06/0.01] Lower uncertainty in f1E12stat.errordoubleTshock[4800/10542] Shock temperatureKphys.temperatureinte_Tshock[14/1910] Uncertainty in TshockKstat.errorint_RAPosition from SIMBAD (right ascension part)degpos.eq.ra;meta.main_DEPosition from SIMBAD (declination part)degpos.eq.dec;meta.mainIDObject identifiermeta.id;meta.maincharprimaryJ/AJ/164/201/table4Periods and inclinations of Orion OB1 CTTSIDObject identifiermeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintvsini[3.2/18.4] Projected rotational velocitykm/sphys.veloc.rotatfloate_vsini[0.8/2] Uncertainty in vsinikm/sstat.error;phys.veloc.rotatfloatPer[4.3/7.1] Perioddtime.periodfloatVel[8.3/23.5] Stellar rotational velocitykm/sphys.veloc.rotatfloate_Vel[0.5/2] Uncertainty in Velkm/sstat.errorfloati[9.3/52.4]? Inclinationdegsrc.orbital.inclinationfloatnullablee_i[2/8]? Uncertainty in idegstat.errorfloatnullableJ/AJ/164/201/table7Accretion column temperaturese_T1E10[1/2] Uncertainty in T1E10Kstat.errorintIDObject identifiermeta.id;meta.maincharT1E10[3938/4675] 1e^10^ accretion column temperatureKphys.temperatureintT1E11[6310/6880] 1e^11^ accretion column temperatureKphys.temperatureinte_T1E11[1/3] Uncertainty in T1E11Kstat.errorinte_T1E12[2/3] Uncertainty in T1E12Kstat.errorintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintT1E12[10679/10973] 1e^12^ accretion column temperatureKphys.temperatureintTshock[4800/10542] Weighted-average shock temperatureKphys.temperatureinte_Tshock[14/1910] Uncertainty in Tshock (1)Kstat.errorintJ/AJ/164/201/table8Accretion column mass flux ratesIDObject identifiermeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMass/Rad[0.08/0.77] Ratio of stellar mass to radiusphys.mass;arith.ratio;phys.size.radiusfloatdM1E10[0.0007/1] 10^10^ accretion column model accretion rate1e-08solMass.yr**-1arith.rate;stat.param;meta.modelledfloatE_dM1E10[0.002/0.3] Upper uncertainty in Mdot1E101e-08solMass.yr**-1stat.error;stat.maxfloate_dM1E10[0.0004/0.4] Lower uncertainty in Mdot1E101e-08solMass.yr**-1stat.errorfloatdM1E11[0.001/2.1] 10^11^ accretion column model accretion rate1e-08solMass.yr**-1arith.rate;stat.param;meta.modelledfloatE_dM1E11[0.01/0.7] Upper uncertainty in Mdot1E111e-08solMass.yr**-1stat.error;stat.maxfloate_dM1E11[0.001/0.6] Lower uncertainty in Mdot1E111e-08solMass.yr**-1stat.errorfloatdM1E12[0.025/15.1] 10^12^ accretion column model accretion rate1e-08solMass.yr**-1arith.rate;stat.param;meta.modelledfloatE_dM1E12[0.004/2] Upper uncertainty in Mdot1E121e-08solMass.yr**-1stat.error;stat.maxfloate_dM1E12[0.001/5] Lower uncertainty in Mdot1E121e-08solMass.yr**-1stat.errorfloatdMTot[0.529/17.2] Total accretion rate1e-08solMass.yr**-1arith.ratefloatE_dMTot[0.018/1.0] Upper uncertainty in MdotTot1e-08solMass.yr**-1stat.error;stat.maxfloate_dMTot[0.016/4.0] Lower uncertainty in MdotTot1e-08solMass.yr**-1stat.errorfloatJ/AJ/164/201/fig1Model parameters for the 9 sourcesIDObject identifiermeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAV[0.05/1.43] V band extinctionmaginstr.bandpass;em.opt.V;obs.atmos.extinctionfloatRad[0.84/3.26] Stellar radiussolRadphys.size.radiusfloatdMass[0.52/17.3] Accretion rate1e-08solMass.yr**-1arith.rate;phys.massdoublef1E10[4e-5/0.24] 1e^10^ accretion column stellar surface fraction coveredarith.ratiodoublef1E11[4e-5/0.02] 1e^11^ accretion column stellar surface fraction coveredarith.ratiodoublef1E12[4e-5/0.03] 1e^12^ accretion column stellar surface fraction coveredarith.ratiodoubleTshock[4802/10650] Weighted-average shock temperatureKphys.temperatureint