A new near-IR window of low extinction in the Galactic plane

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dc.contributor.authorMinniti, D.
dc.contributor.authorSaito, R.K.
dc.contributor.authorGonzalez, O.A.
dc.contributor.authorAlonso-García, J.
dc.contributor.authorRejkuba, M.
dc.contributor.authorBarbá, R.
dc.contributor.authorIrwin, M.
dc.contributor.authorKammers, R.
dc.contributor.authorLucas, P.W.
dc.contributor.authorMajaess, D.
dc.contributor.authorValenti, E.
dc.date.accessioned2019-11-29T14:01:50Z
dc.date.available2019-11-29T14:01:50Z
dc.date.issued2018-08
dc.descriptionIndexación: Scopus.es
dc.descriptionAcknowledgements. We gratefully acknowledge the use of data from the ESO Public Survey programme ID 179.B-2002 taken with the VISTA telescope, and data products from the Cambridge Astronomical Survey Unit (CASU). Support for the authors is provided by the BASAL Center for Astrophysics and Associated Technologies (CATA) through grant PFB-06, and the Ministry for the Economy, Development, and Tourism, Programa Iniciativa Cientiífica Milenio through grant IC120009, awarded to the Millennium Institute of Astrophysics (MAS). R.K.S. acknowledges support from CNPq/Brazil through projects 308968/2016-6 and 421687/2016-9. R.K. acknowledges support from CNPq/Brazil. D.M., M.Z., R.B., and J.A.G. acknowledge support from FONDECYT Regular grants No. 1130196, 1140076, and 1150345, and Iniciation grant No. 11150916, respectively. We are also grateful to the Aspen Center for Physics where our work was partly supported by National Science Foundation grant PHY-1066293, and by a grant from the Simons Foundation (D.M. and M.R.).
dc.description.abstractAims. The windows of low extinction in the Milky Way (MW) plane are rare but important because they enable us to place structural constraints on the opposite side of the Galaxy, which has hither to been done rarely. Methods. We use the near-infrared (near-IR) images of the VISTA Variables in the Vía Láctea (VVV) Survey to build extinction maps and to identify low extinction windows towards the Southern Galactic plane. Here we report the discovery of VVV WIN 1713-3939, a very interesting window with relatively uniform and low extinction conveniently placed very close to the Galactic plane. Results. The new window of roughly 30 arcmin diameter is located at Galactic coordinates (l, b) = (347.4, -0.4) deg. We analyse the VVV near-IR colour-magnitude diagrams in this window. The mean total near-IR extinction and reddening values measured for this window are A Ks = 0.46 and E(J - K s ) = 0.95. The red clump giants within the window show a bimodal magnitude distribution in the K s band, with peaks at K s = 14.1 and 14.8 mag, corresponding to mean distances of D = 11.0 ± 2.4 and 14.8 ± 3.6 kpc, respectively. We discuss the origin of these red clump overdensities within the context of the MW disk structure. © ESO 2018.es
dc.description.urihttps://www.aanda.org/articles/aa/abs/2018/08/aa32099-17/aa32099-17.html
dc.identifier.citationAstronomy and Astrophysics, 616, art. no. A26.es
dc.identifier.issn0004-6361
dc.identifier.otherDOI: 10.1051/0004-6361/201732099
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/10908
dc.language.isoenes
dc.publisherEDP Scienceses
dc.subjectDust, extinctiones
dc.subjectGalaxy: Diskes
dc.subjectGalaxy: Structurees
dc.subjectSurveyses
dc.titleA new near-IR window of low extinction in the Galactic planees
dc.typeArtículoes
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