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dc.contributor.authorDutra, Carlos Maximilianopt_BR
dc.contributor.authorBica, Eduardo Luiz Damianipt_BR
dc.date.accessioned2014-07-18T02:04:41Zpt_BR
dc.date.issued2000pt_BR
dc.identifier.issn0004-6361pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/98104pt_BR
dc.description.abstractThis paper compares reddening values E(B-V) derived from the stellar content of 103 old open clusters and 147 globular clusters of the Milky Way with those derived from DIRBE/IRAS 100 μm dust emission in the same directions. Star clusters at |b| > 20º show comparable reddening values between the two methods, in agreement with the fact that most of them are located beyond the disk dust layer. For very low galactic latitude lines of sight, differences occur in the sense that DIRBE/IRAS reddening values can be substantially larger, suggesting effects due to the depth distribution of the dust. The differences appear to arise from dust in the background of the clusters consistent with a dust layer where important extinction occurs up to distances from the Plane of ≈ 300 pc. For 3% of the sample a significant background dust contribution might be explained by higher dust clouds. We find evidence that the MilkyWay dust lane and higher dust clouds are similar to those of several edge-on spiral galaxies recently studied in detail by means of CCD imaging.en
dc.format.mimetypeapplication/pdf
dc.language.isoengpt_BR
dc.relation.ispartofAstronomy and astrophysics. New York. Vol. 359, no. 1 (July 2000), 347-363pt_BR
dc.rightsOpen Accessen
dc.subjectGalaxy: globular clusters: general – –en
dc.subjectGalaxiapt_BR
dc.subjectGalaxy: open clusters and associations: generalen
dc.subjectPoeira cosmicapt_BR
dc.subjectISM: dust, extinctionen
dc.subjectMateria interestelarpt_BR
dc.subjectAglomerados estelarespt_BR
dc.titleForeground and background dust in star cluster directionspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000274946pt_BR
dc.type.originEstrangeiropt_BR


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