LDN 183 and LDN 169 Vilnius photometryJ/A+A/611/A9ivo://CDS.VizieR/J/A+A/611/A9doi:10.26093/cds/vizier.36110009CDSStraizys V.Boyle R.P.Zdanavicius J.Janusz R.Corbally C.J.,Munari U.Andersson B.-G.Zdanavicius K.Kazlauskas A.Maskoliunas M.,Cernis K. Macijauskas M.2018-03-15T09:21:02Z2018-03-14T09:18:20ZCDS support team
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
cds-question@unistra.frmolecular-cloudsvilnius-photometryThe interstellar extinction is investigated in a 2x2deg area containing the dust and molecular clouds LDN 183 (MBM 37) and LDN 169, centered at RA=15h54m, DEC=-3{deg}. The study is based on photometric classification in spectral and luminosity classes of 782 stars selected from the catalogs of 1299 stars down to V=20mag observed in the Vilnius seven-color system. For control, the MK types for 18 brightest stars with V between 8.5 and 12.8mag were determined spectroscopically. For 14 stars, located closer than 200pc, distances were calculated from trigonometric parallaxes taken from the Gaia Data Release 1. For about 70% of the observed stars, two-dimensional spectral types, interstellar extinctions Av and distances were determined. Using 57 stars closer than 200pc we estimate that the front edge of the clouds begins at 105+/-8pc. The extinction layer in the vicinities of the clouds can be about 20pc thick. In the outer parts of the clouds and between the clouds the extinction is 2.0-2.5mag. Behind the Serpens/Libra clouds the extinction range does not increase; this means that the dust layer at 105pc is a single extinction source.2018A&A...611A...9Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/611/A9CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/611/A9https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/611/A9http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/611/A9https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/611/A9https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/611/A9http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/611/A9GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/611/A9/table1 (Catalogue of stars observed in the Vilnius seven-color system at the Moletai observatory)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/611/A9/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/611/A9/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/611/A9/table1?GETtext/xml+votable180.050000true237.4275-3.74536110.005555555555555556Cone search capability for table J/A+A/611/A9/table2 (Catalogue of stars observed in the Vilnius seven-color system at the Mount Graham observatory)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/611/A9/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/611/A9/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/611/A9/table2?GETtext/xml+votable180.050000true238.07425-3.067250.0055555555555555565/7815 7821 6/31259 31281 31306 313283.561607812030676e-19 3.741500294832266e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/611/A9?format=asciiOpticaldefaultJ/A+A/611/A9/table1Catalogue of stars observed in the Vilnius seven-color system at the Moletai observatorye_U-V? Error of U-Vmagstat.error;phot.color;em.opt.UfloatnullableSeqSequential number (1)meta.recordintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainVmagV magnitude (Vilnius system)magphot.mag;em.opt.Vfloate_VmagError of Vmagmagstat.error;phot.mag;em.opt.VfloatU-V? U-V colour index (Vilnius system)magphot.color;em.opt.U;em.opt.VfloatnullableP-V? P-V colour index (Vilnius system)magphot.color;em.opt.V;em.opt.Ufloatnullablee_P-V? Error of P-Vmagstat.errorfloatnullableX-VX-V colour index (Vilnius system)magphot.color;em.opt.V;em.opt.Bfloate_X-VError of X-Vmagstat.errorfloatY-VY-V colour index (Vilnius system)magphot.color;em.opt.B;em.opt.Vfloate_Y-VError of Y-Vmagstat.errorfloatZ-VZ-V colour index (Vilnius system)magphot.color;em.opt.V;em.opt.Vfloate_Z-VError of Z-Vmagstat.errorfloatV-S? V-S colour index (Vilnius system)magphot.color;em.opt.V;em.opt.Rfloatnullablee_V-S? Error of V-Smagstat.errorfloatnullableSpTypePhotometric spectral type (2)src.spTypecharNoteFlag on spectral classification (3)meta.notechar
J/A+A/611/A9/table2Catalogue of stars observed in the Vilnius seven-color system at the Mount Graham observatorySeqSequential number (1)meta.recordintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainVmagV magnitude (Vilnius system)magphot.mag;em.opt.Vfloate_VmagError of Vmagmagstat.error;phot.mag;em.opt.VfloatU-V? U-V colour index (Vilnius system)magphot.color;em.opt.U;em.opt.Vfloatnullablee_U-V? Error of U-Vmagstat.error;phot.color;em.opt.UfloatnullableP-V? P-V colour index (Vilnius system)magphot.color;em.opt.V;em.opt.Ufloatnullablee_P-V? Error of P-Vmagstat.errorfloatnullableX-VX-V colour index (Vilnius system)magphot.color;em.opt.V;em.opt.Bfloate_X-VError of X-Vmagstat.errorfloatY-VY-V colour index (Vilnius system)magphot.color;em.opt.B;em.opt.Vfloate_Y-VError of Y-Vmagstat.errorfloatZ-VZ-V colour index (Vilnius system)magphot.color;em.opt.V;em.opt.Vfloate_Z-VError of Z-Vmagstat.errorfloatV-S? V-S colour index (Vilnius system)magphot.color;em.opt.V;em.opt.Rfloatnullablee_V-S? Error of V-Smagstat.errorfloatnullableSpTypePhotometric spectral type (2)src.spTypecharNoteFlag on spectral classification (3)meta.notechar