J/ApJS/147/305ivo://CDS.VizieR/J/ApJS/147/305doi:10.26093/cds/vizier.21470305CDSValenti J.A.Fallon A.A.Johns-Krull C.M.2017-12-05T05:09:57Z2009-04-22T13:01:32ZCDS support team

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

cds-question@unistra.frpre-main-sequence-starsspectroscopyultraviolet-astronomyWe identified 137 T Tauri stars (TTS) and 97 Herbig Ae/Be (HAEBE) stars observed by IUE in the wavelength interval 1900-3200{AA}. Each low-resolution (R~6{AA}) spectrum was visually inspected for source contamination and data quality, and then all usable spectra were combined to form a single time averaged spectrum for each star. For sources with multiple observations, we characterized variability and compared with previously published amplitudes at shorter wavelengths. We combined several co-added spectra of diskless TTS to produce a pair of intrinsic stellar spectra unaffected by accretion. We then fitted spectra of TTS with the reddened sum of an intrinsic spectrum and a schematic veiling continuum, measuring emission line fluxes from the residuals. We used extinction and distance estimates from the literature to convert measured Mg II line fluxes into intrinsic line luminosities, noting that the IUE detection limit introduces a sample bias such that intrinsic line luminosity is correlated with extinction. This sample bias complicates any physical interpretation of TTS intrinsic luminosities. We measured extinction toward HAEBE stars by fitting our co-added IUE spectra with reddened spectra of main-sequence stars and also from V band minus 3000{AA} color excess. We measured excess line emission and absorption in spectra of HAEBE stars divided by fitted spectra of main-sequence stars, noting that HAEBE stars with an infrared excess indicating circumstellar material typically also have anomalous UV line strengths. In the latter situation, Mg II is usually shallower than in a main-sequence star of the same spectral class, whereas Fe II lines are equally likely to be deeper or shallower. Our co-added spectra of TTS, HAEBE stars, and main-sequence templates are available electronically, in FITS and ASCCI format, at http://archive.stsci.edu/prepds/iuepms/ .2003ApJS..147..305Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/147/305CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-tohttp://archive.stsci.edu/prepds/iuepms/ :VI/110 : Final Merged Log of IUE Observations (NASA-ESA, 2000)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/147/305https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/147/305http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/147/305https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/147/305https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/147/305http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/147/305GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/147/305/table1 (Pre-main-sequence stars observed by IUE with LW cameras)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/147/305/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/147/305/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/147/305/table1?GETtext/xml+votable180.050000true7.877852561.98082390.005555555555555556Cone search capability for table J/ApJS/147/305/table7 (Main-sequence template stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/147/305/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/147/305/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/147/305/table7?GETtext/xml+votable180.050000true161.2743667-59.66843330.005555555555555556IUE5/5887 6/336 342 599 689 862 1043 1048 1050 1051 1073 1074 1075 1083 1111 1113 1114 1115 1124 1136 1159 1168 1169 1171 1293 1591 2360 2823 3038 3057 5311 5506 10731 11225 13736 14031 14306 14311 14344 14696 14906 15363 15368 15369 15411 15759 16131 18741 21272 21316 21402 21421 21425 21433 21436 21438 21439 21643 21646 22023 22249 22258 22805 22828 22829 22848 22854 22856 22861 22873 22895 22911 23115 23493 23501 23514 23518 23539 23542 23560 23636 23637 23644 23646 23683 23704 23717 23727 23738 23739 23769 23798 23839 23970 24201 24203 24277 24279 24449 26879 27102 27574 27884 28208 28746 28831 28890 28921 29193 29212 29519 29680 30188 30363 30741 30995 31259 32065 33116 33537 36956 36957 36958 37128 37169 37186 37353 37362 37916 37930 37931 37938 38002 38016 38382 39163 39863 41472 41566 41734 41767 42034 42217 42233 42254 42387 42392 42429 42432 42595 42598 42605 42610 42611 42612 42687 42704 42713 42727 42736 42737 42931 42970 42972 42977 42981 42990 43235 43416 44316 44317 44360 44362 44366 44379 44389 45654 47742 47828https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/147/305?format=asciiUVdefaultJ/ApJS/147/305/table1Pre-main-sequence stars observed by IUE with LW camerasSeqInternal identification numbermeta.idintprimaryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintu_Seq[)] ) if none of the LW spectra are usefulmeta.code.errorcharVJL? Identification number from Paper I, Valenti et al., 2000ApJS..129..399Vmeta.idintnullableu_VJL[)] ) if none of the SW spectra are usefulmeta.code.errorcharHBC? Number of Herbig & Bell, 1988LicOB1111....1Hmeta.idintnullableNameName of sourcemeta.id;meta.maincharONameOther namemeta.idcharSpTypeSpectral type (1)src.spTypecharCatPMS categorysrc.classcharn_Cat[h] Note on Cat (2)meta.notecharNNumber of useful IUE LW spectrameta.numberintsp[-] when there is no spectrum associated.meta.codecharSimbadNameSimbad column added by the CDSmeta.idcharPlotSimbad column added by the CDSmeta.ref.urlchar_RAnull=3 *vizSimbad= W84 = HBC 217 W108 = HBC 222 BD-05d 1306 = BD-05 1306 Par 1817 = Parenago 1817 BD-04d 1191 = BD-04 1191 BD-06d 1258 = BD-06 1258 CPD-59d 2854 = CPD-59 2854 BD+65d 1637 = BD+65 1637 (right ascension part)degpos.eq.ra;meta.main_DEnull=3 *vizSimbad= W84 = HBC 217 W108 = HBC 222 BD-05d 1306 = BD-05 1306 Par 1817 = Parenago 1817 BD-04d 1191 = BD-04 1191 BD-06d 1258 = BD-06 1258 CPD-59d 2854 = CPD-59 2854 BD+65d 1637 = BD+65 1637 (declination part)degpos.eq.dec;meta.mainJ/ApJS/147/305/table2Additional classifications from the literaturerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqInternal identification numbermeta.idintNameName of sourcemeta.id;meta.maincharCatPMS categorysrc.classcharn_Cat[b] Note on Cat (1)meta.notecharr_CatReferences, in refs.dat filemeta.ref;pos.frameintReasonsReasons of the classificationmeta.notecharJ/ApJS/147/305/refsReferencesComCommentsmeta.notecharBibCodeBibCodemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference numbermeta.id;meta.mainintJ/ApJS/147/305/table3Measured Flux VariationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqIdentification numbermeta.idintNameNamemeta.id;meta.maincharCatPMS categorysrc.classcharNNumber of good IUE spectra used in analysis.meta.numberintchi2r{chi}^2^_r_ valuestat.fit.chi2floatl_AmpLimit flag on Ampmeta.code.errorcharAmpRelative amplitude of fluctuation%phot.mag;arith.ratiofloate_Amprms uncertainty on Amp%stat.errorfloatJ/ApJS/147/305/table6Measured Fluxes for TTSl_FeII2600Upper limit flag on FeII2600 (1)meta.code.errorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqIdentification numbermeta.idintl_ct2257Upper limit flag on ct2257 (1)meta.code.errorcharct2257Log of the continuum flux near 2257{AA} (2)log(10mW.m**-2.nm**-1)phot.fluxdoublee_ct2257? Error in ct2257 (2)log(10mW.m**-2.nm**-1)stat.errorfloatnullablect3060Log of the continuum flux near 3060{AA} (2)log(10mW.m**-2.nm**-1)phot.fluxdoublee_ct3060Error in ct3060 (2)log(10mW.m**-2.nm**-1)stat.errorfloatl_CII2330Upper limit flag on CII2330 (1)meta.code.errorcharCII2330Integrated C II (2330) line flux (3)1e-16W.m**-2phot.fluxfloate_CII2330? Error in CII2330 (3)1e-16W.m**-2stat.errorfloatnullablel_FeII2392Upper limit flag on FeII2392 (1)meta.code.errorcharFeII2392Integrated Fe II (2392) line flux (3)1e-16W.m**-2phot.fluxfloate_FeII2392? Error in FeII2392 (3)1e-16W.m**-2stat.errorfloatnullablel_FeII2508Upper limit flag on FeII2508 (1)meta.code.errorcharFeII2508Integrated Fe II (2508) line flux (3)1e-16W.m**-2phot.fluxfloate_FeII2508? Error in FeII2508 (3)1e-16W.m**-2stat.errorfloatnullableFeII2600Integrated Fe II (2600) line flux (3)1e-16W.m**-2phot.fluxfloate_FeII2600? Error in FeII2600 (3)1e-16W.m**-2stat.errorfloatnullablel_FeII2742Upper limit flag on FeII2742 (1)meta.code.errorcharFeII2742Integrated Fe II (2742) line flux (3)1e-16W.m**-2phot.fluxfloate_FeII2742? Error in FeII2742 (3)1e-16W.m**-2stat.errorfloatnullablel_MgII2798Upper limit flag on MgII2798 (1)meta.code.errorcharMgII2798Integrated Mg II (2798) line flux (3)1e-16W.m**-2phot.fluxfloate_MgII2798? Error in MgII2798 (3)1e-16W.m**-2stat.errorfloatnullablel_FeII2995Upper limit flag on FeII2995 (1)meta.code.errorcharFeII2995Integrated Fe II (2995) line flux (3)1e-16W.m**-2phot.fluxfloate_FeII2995? Error in FeII2995 (3)1e-16W.m**-2stat.errorfloatnullableJ/ApJS/147/305/table7Main-sequence template starsHDHD numbermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSpTypeMK Spectral typesrc.spTypecharNNumber of IUE spectrameta.numberintAVVisual extinction (from Neckel et al., 1980, Cat. <II/62>magphys.absorption;em.opt.Vfloat(3000-V)Dereddened (3000-V) colour indexmagphot.color;em.UV;em.optfloatPlotSimbad column added by the CDSmeta.ref.urlcharSimbadSimbad column added by the CDSchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/ApJS/147/305/table9Continuum Fluxes and Excess Line Emission for HAEBE StarsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqIdentification numbermeta.idintl_ct2257Upper limit flag on ct2257 (1)meta.code.errorcharct2257Log of the continuum flux near 2257{AA} (2)log(10mW.m**-2.nm**-1)phot.fluxdoublee_ct2257? Error in ct2257 (2)log(10mW.m**-2.nm**-1)stat.errorfloatnullablect3060Log of the continuum flux near 3060{AA} (2)log(10mW.m**-2.nm**-1)phot.fluxdoublee_ct3060Error in ct3060 (2)log(10mW.m**-2.nm**-1)stat.errorfloatl_FeII2392Upper limit flag on FeII2392 (1)meta.code.errorcharFeII2392? Integrated Fe II (2392) line flux (3)1e-16W.m**-2phot.fluxfloatnullablee_FeII2392? Error in FeII2392 (3)1e-16W.m**-2stat.errorfloatnullablel_FeII2600Upper limit flag on FeII2600 (1)meta.code.errorcharFeII2600? Integrated Fe II (2600) line flux (3)1e-16W.m**-2phot.fluxfloatnullablee_FeII2600? Error in FeII2600 (3)1e-16W.m**-2stat.errorfloatnullableu_FeII2600[:] Uncertainty flag on FeII2600meta.code.errorcharl_FeII2742Upper limit flag on FeII2742 (1)meta.code.errorcharFeII2742? Integrated Fe II (2742) line flux (3)1e-16W.m**-2phot.fluxfloatnullablee_FeII2742? Error in FeII2742 (3)1e-16W.m**-2stat.errorfloatnullableu_FeII2742[:] Uncertainty flag on FeII2742meta.code.errorcharl_MgII2798Upper limit flag on MgII2798 (1)meta.code.errorcharMgII2798? Integrated Mg II (2798) line flux (3)1e-16W.m**-2phot.fluxfloatnullablee_MgII2798? Error in MgII2798 (3)1e-16W.m**-2stat.errorfloatnullable