J/A+A/390/511ivo://CDS.VizieR/J/A+A/390/511doi:10.26093/cds/vizier.33900511CDSGroenewegen M.A.T.Sevenster M.Spoon H.W.W.Perez I.2018-01-10T11:47:25Z2002-08-23T21:33:50ZCDS support team

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

cds-question@unistra.frcarbon-starsinfrared-sourcesstellar-mass-lossradial-velocityDust- and gas mass loss rates and distances are determined for a sample of about 330 infra-red carbon stars that probe a distance up to about 5.5kpc. The dependence of the dust- and gas mass loss rates, and the expansion velocity upon galactic longitude (l) are studied. It is found that the expansion velocity significantly depends on l, but that the absolute bolometric magnitude, the dust mass loss rate and the gas-to-dust ratio depend on l marginally, if at all, and the gas mass loss rate does not depend on l. Beyond the solar circle, the expansion velocity (as well as the luminosity, dust-to-gas ratio, dust mass loss rate) is lower than inside the solar circle, as expected from the overall gradient in metallicity content of the Galaxy. Combining the average expansion velocity inside and beyond the solar circle with the theoretically predicted relation between expansion velocity and gas-to-dust ratio, we find that the metallicity gradient in the solar neighbourhood is about -0.034dex/kpc, well within the quoted range of values in the literature.2002A&A...390..511Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/390/511CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/390/501 : Millimetre observations of carbon stars. I (Groenewegen+, 2002)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/390/511https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/390/511http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/390/511https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/390/511https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/390/511http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/390/511GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/390/511/table1 (Data on the stars used in this study)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/390/511/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/390/511/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/390/511/table1?GETtext/xml+votable180.050000true11.2812553.4466670.0055555555555555566/765 889 1130 1371 1465 1485 1507-1508 1647 1727 1731 1798 1806 1841 1928 2094 2920 2962 3059 3142 3190 3227 3255 3285 3287 3352 3359 3368 3424 3456 3498 3639 3717 3735 3766 3856 4365 5273 6813 6884 10103 12543 12970 12982 12990 13034 13113 13222 13224 13240 13297 13302 13677 13968 14026 14048 14072 14074 14159 14212 14248 14287 14325 14333 14348 14356 14385 14391 14418 14425 14427 14445 14452 14455 14457-14458 14544 14593 14600-14601 14615 14618-14619 14623 14661 14695 14718 14738 14894 15375-15376 15384 15386 15401 15404 15415 15427 15429 15434 15444 15473 15475 15479 15554 15612 15636 15638 15641 15692 15698 15718 15730 16023 16144 16233 19112 19629 20022 20615 20824 20826 21338 21560 21608 21638 21711 22041 22052 22093 22096 22099 22106 22161 22207 22215 22225 22235 22241 22269 22330 23606 23628 23640 23642 23667 23733 23778 23831 23855 23971 24142 24158 24258 24406 24413 24501 25228 25486 26654 28729 28796 28802 28821 28883 28891 29062 29064 29166 29214 29222 29443-29444 29524 29531 29545 29553 29558 29563 29660 29855 29951 30214 30217 30252 30265 30349 30415 30521 30565 30569 30593 30603 30606 30634 30644 30661 30665 30717 31809 32062 32085 32114 32189 33589 36986 37139 37193 37210 37223 37238 37320 37347 37366 37400 37405 37689-37690 37719 37729 37746 37750 37752 37817 37833 37863 37881 37894 37953 37987 38117 38406 38409 38428 38437 38462 38504 38862 39323 39342 39368 39375 39384 39396 39417 39523 39527 39530 39705 39738 39773 39790 39805 39911 40064 40066 40072 40117 40150 40168 40464 40502 40601 40615 40673 40691 41045 41328 41466 41479 41530 41571 41583 41611 41650 41652 41692-41693 41711 41738 41742-41743 41760 41781 41786 41832 41849 41904 41910 41937 41945 42057 42138 42152 42181 42201 42218 42236 42280 42332 42360 42365 42369 42463 42489 42510 42516 42560 42758 42845 43011 43016 43028 43030 43032 43039 43055 43088 43525 43581 45279 47664 47752 48869https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/390/511?format=asciiOpticalInfrareddefaultJ/A+A/390/511/table1Data on the stars used in this studyrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIRASIRAS namemeta.idcharGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latfloatVexp? Expansion velocitykm/sphys.veloc.expansionfloatnullableVlsrRadial velocity, with respect to the LSRkm/sphys.veloc;pos.lsrfloatmbolApparent bolometric magnitudemagphot.mag.bolfloatMbolAbsolute bolometric magnitudemagphys.magAbs.bolfloatDistDistancekpcpos.distancefloatdMgas/dt? Gas mass-loss ratesolMass/yrphys.mass.lossdoublenullabledMdust/dt? Dust mass-loss ratesolMass/yrphys.mass.lossdoublenullableGas/Dust? Gas-to-dust ratio, (dMg/dt)/(dMd/dt)phys.mass;arith.ratiointnullable_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.mainSimbadSimbad column added by the CDSmeta.refchar