J/A+A/597/A22ivo://CDS.VizieR/J/A+A/597/A22doi:10.26093/cds/vizier.35970022CDSSimon-Diaz S.Godart M.Castro N.Herrero A.Aerts C.Puls J.,Telting J.Grassitelli L.2018-01-08T06:38:24Z2016-12-20T13:45:51ZCDS support team

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

cds-question@unistra.frearly-type-starsline-intensitiesThe term macroturbulent broadening is commonly used to refer to a certain type of non-rotational broadening acting the spectral line profiles of O- and B-type stars. It has been proposed to be a spectroscopic signature of the presence of stellar oscillations; however, we still lack a definitive confirmation of this hypothesis. We aim to provide new empirical clues about macroturbulent spectral line broadening in O- and B-type stars to evaluate its physical origin. We used high-resolution spectra of 430 stars with spectral types in the range O4-B9 (all luminosity classes) compiled in the framework of the IACOB project. We characterized the line broadening of adequate diagnostic metal lines using a combined Fourier transform and goodness-of-fit technique. We performed a quantitative spectroscopic analysis of the whole sample using automatic tools coupled with a huge grid of FASTWIND models to determine their effective temperatures and gravities. We also incorporated quantitative information about line asymmetries into our observational description of the characteristics of the line profiles, and performed a comparison of the shape and type of line-profile variability found in a small sample of O stars and B supergiants with still undefined pulsational properties and B main-sequence stars with variable line profiles owing to a well-identified type of stellar oscillations or to the presence of spots in the stellar surface.2017A&A...597A..22Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/597/A22CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/562/A135 : Northern Galactic OB stars vsini (Simon-Diaz+, 2014)J/A+A/597/A22 : Massive O- and B-type stars velocities (Simon-Diaz+, 2017)J/A+A/613/A65 : Spectroscopic parameters of O-type stars (Holgado+, 2018)J/A+A/613/A9 : Extinction towards Galactic O stars (Maiz Apellaniz+, 2018)J/A+A/639/A157 : Massive O-type stars near ZAMS elusive detectionhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/597/A22https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/597/A22http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/597/A22https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/597/A22https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/597/A22http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/597/A22GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/597/A22/tablea1 (List of stars considered for this paper)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/597/A22/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/597/A22/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/597/A22/tablea1?GETtext/xml+votable180.050000true1.514114463.67965560.0055555555555555566/63 161 326 463 474 859 1044 1198 1277 1293 1297 1299 1303 1323 1332 1385 1555 1737 1770-1771 1777 1790 1826 1929 1946 2259 2409 2467 2593 2619 2774 2790 2940 2947-2948 2957 2970 3011 3020 3054 3058 3060 3066 3136 3144 3153 3220 3239 3242 3245 3256-3258 3260 3272 3283-3284 3307 3315 3331 3334 3384 3430 3585 3595 3600 3614 3622 3632 3637 3644 3681 3704 3721 3750 3785 3816 3830 4266 6894 7195 7767 7839 8490 8547 9478 9936 10081 10731 10822 11599 12425 12472 12651 12865 12932 12943 12991 13001 13054 13115 13155 13255 13258 13292 13457 13554 13556-13557 13559 13566 13572 13611 13682 13709 13751 13910 13953 13963 13984 13999 14013 14055 14077 14082 14167 14179 14209 14240 14264 14283 14301 14305 14307 14312-14313 14381 14431 14456 14459 14522 14527 14545 14576 14625 14630-14632 14643 14645-14647 14649 14662 14682 14690-14691 14706 14734 14740-14741 14745 14764 14777 14807 14810 14824-14825 14843 14878 14911 14919 14945 15151 15369 15392 15396 15399 15406 15417 15476 15492 15573 15577 15624 15656-15657 15662-15663 15672 15677 15683 15702 15745 15747-15748 15768 15881 16144 16275 16490 17194 17754 18566 19309 19336 19676 19757 19780 20447 20759 20782 20810 20834 20847 20854 20860 20862 20915 20974 20985 21228 21401 21432 21434-21436 21438-21439 21467 21517 21530-21531 21635 21638 21655-21656 21677 21729 21939 22079 22167 22173 22208 22211 22216 22223 22240 22246 22249 22253 22264 22357 22400 22730 22750 22769 22772 22787 22790 22805 22854 22859 22862 22884 22888-22889 22893 22907 22920 23005 23007 23358 23360 23374 23483 23637 23669 23675 23692 23701 23714 23717 23749 23763 23776 23860 23962 23979 23982-23983 23998 24029 24132 24139 24333 24338 24340 24370 24410 24480 24486 24496 24504 25002 25016 25993 26879 26929 27402 27498 28890 28900 28913 28915 28944 29036 29089 29091 29095 29098 29115 29138 29149 29158 29162 29208 29460 29463 29522 29600 29838 29876 30114 30289 30320 30325 30356 30476 30482 30643 30709 30718 31063 31121 31292 31756 31790 32174 32216 32604 32738 36018 36121 36651 39831 39894 39907 39930 40545 40595 40599 40617 40659 40807 42483 42924 42932 42948 42959 42977 44310 44366 44386 44389 44461 44717 44822 44892 44974 48497 48884 49049 49109 49149https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/597/A22?format=asciiOpticaldefaultJ/A+A/597/A22/tablea1List of stars considered for this paperrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTargetHD number of the starmeta.id;meta.maincharSpTypeSpectral type (1)src.spTypecharLineLine used to determine the line-broadening parametersmeta.id;spect.linecharS/NcSignal-to-noise ratio of the adjacent continuumstat.snr;spect.continuumintEWEquivalent width of the line0.1pmspect.line.eqWidthintvsiniFProjected rotational velocity as derived from the Fourier transform (FT) approachkm/sphys.veloc.rotatintvsiniGProjected rotational velocity as derived from the goodness of fit (GOF) approachkm/sphys.veloc.rotatintl_vmacLimit flag on vmacmeta.code.errorcharvmacMacroturbulent velocity as derived from the goodness of fit (GOF) approachkm/sphys.velocintRSkRelative skewness of the line profile as derived using Eq. 1 in the paper (2)stat.fit.paramfloate_RSkrms uncertainty on RSkstat.errorfloatlogTeff? Effective temperaturelog(K)phys.temperature.effectivefloatnullablelogL? Luminosity (L=Teff^4^/g)log(solLum)phys.luminosityfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_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.main