@article{3c63913e9c644ed6bd891ee17f3d49bd,
title = "A colour-excess extinction map of the southern Galactic disc from the VVV and GLIMPSE surveys",
abstract = "An improved high-resolution and deep AKs foreground dust extinction map is presented for the Galactic disc area within 295◦ ≾ l ≾ 350◦, −1.0◦ ≾ b ≾ +1.0◦. At some longitudes the map reaches up to |b| ~ 2.25◦, for a total of ~148 deg2. The map was constructed via the Rayleigh–Jeans colour excess (RJCE) technique based on deep near-infrared (NIR) and mid-infrared (MIR) photometry. The new extinction map features a maximum bin size of 1 arcmin, and relies on NIR observations from the Two Micron All-Sky Survey (2MASS) and new data from ESO{\textquoteright}s Vista Variables in the V{\'i}a L{\'a}ctea (VVV) survey, in concert with MIR observations from the Galactic Legacy Infrared Mid-Plane Survey Extraordinaire. The VVV photometry penetrates ~4 mag fainter than 2MASS, and provides enhanced sampling of the underlying stellar populations in this heavily obscured region. Consequently, the new results supersede existing RJCE maps tied solely to brighter photometry, revealing a systematic underestimation of extinction in prior work that was based on shallower data. The new high-resolution and large-scale extinction map presented here is readily available to the community through a web query interface.",
keywords = "Galaxy: disc, Galaxy: stellar content, Galaxy: structure, Infrared: stars, Surveys",
author = "M. Soto and R. Barb{\'a} and D. Minniti and A. Kunder and D. Majaess and Nilo-Castell{\'o}n, {J. L.} and J. Alonso-Garc{\'i}a and G. Leone and L. Morelli and L. Haikala and V. Firpo and P. Lucas and Emerson, {J. P.} and {Moni Bidin}, C. and D. Geisler and Saito, {R. K.} and S. Gurovich and {Contreras Ramos}, R. and M. Rejkuba and M. Barbieri and A. Roman-Lopes and M. Hempel and Alonso, {M. V.} and Baravalle, {L. D.} and J. Borissova and R. Kurtev and F. Milla",
note = "Funding Information: DG also acknowledges financial support from the Direccion de Investigacion y Desarrollo de la Universidad de La Serena through the Programa de Incentivo a la Investigacion de Academicos(PIA-DIDULS). MH gratefully acknowledges support from the BASAL Center for Astrophysics and Associated Technologies (CATA) through grant PFB-06 and Comit{\'e} Mixto ESO-Gobierno de Chile. RKS acknowledges support from CNPq/Brazil through projects 308968/2016-6 and 421687/2016-9. CMB acknowledges support from FONDECYT regular project 1150060. This material is based upon work supported in part by the National Science Foundation under Grant No. 1066293 and the hospitality of the Aspen Center for Physics. VF acknowledges support from CONICYT Astronomy Program-2015 Research Fellow GEMINI-CONICYT (32RF0002). FM gratefully acknowledges support from Programa DIDULS PT17145. JLNC is also grateful for financial support received from the Programa de Incentivo a la Investigaci{\'o}n Acad{\'e}mica de la Direcci{\'o}n de Investigaci{\'o}n de la Universidad de La Serena (PIA-DIULS), Programa DIULS de Iniciaci{\'o}n Cient{\'i}fica No. PI 15142. JLNC also acknowledges the financial support from the GRANT PROGRAM N◦FA9550-15-1-0167 of the Southern Office of Aerospace Research and development (SOARD), a branch of the Air Force Office of the Scientific Researchs International Office of the United States (AFOSR/IO). This work is based in part on observations made with the Spitzer Space Telescope, and has made use of the NASA/IPAC Infrared Science Archive, which are operated by the Jet Propulsion Laboratory, California Institute of Technology under a contract with NASA. We acknowledge use of Funding Information: We would like to thank the anonymous referee for comments and advice that have greatly improved the clarity of the paper. MS acknowledges support from Becas Chile de Postdoctorado en el Extranjero project 74150088. We gratefully acknowledge data from the ESO Public Survey programme ID 179.B-2002 taken with the VISTA telescope, and products from the Cambridge Astronomical Survey Unit (CASU). DM, JB, RK, and JAG gratefully acknowledge support provided by the Ministry for the Economy, Development and Tourism, Programa Iniciativa Cientifica Milenio grant IC120009, awarded to the Millennium Institute of Astrophysics (MAS). DM also acknowledges support from project FONDECYT No. 1170121. DG and DM gratefully acknowledge support provided by the BASAL Center for Astrophysics and Associated Technologies (CATA) through grant AFB-170002. DG also acknowledges financial support from the Direccion de Investigacion y Desarrollo de la Universidad de La Serena through the Programa de Incentivo a la Investigacion de Academicos(PIA-DIDULS). MH gratefully acknowledges support from the BASAL Center for Astrophysics and Associated Technologies (CATA) through grant PFB-06 and Comit? Mixto ESO-Gobierno de Chile. RKS acknowledges support from CNPq/Brazil through projects 308968/2016-6 and 421687/2016-9. CMB acknowledges support from FONDECYT regular project 1150060. This material is based upon work supported in part by the National Science Foundation under Grant No. 1066293 and the hospitality of the Aspen Center for Physics. VF acknowledges support from CONICYT Astronomy Program-2015 Research Fellow GEMINI-CONICYT (32RF0002). FM gratefully acknowledges support from Programa DIDULS PT17145. JLNC is also grateful for financial support received from the Programa de Incentivo a la Investigaci?n Acad?mica de la Direcci?n de Investigaci?n de la Universidad de La Serena (PIA-DIULS), Programa DIULS de Iniciaci?n Cient?fica No. PI 15142. JLNC also acknowledges the financial support from the GRANT PROGRAM N? FA9550-15-1-0167 of the Southern Office of Aerospace Research and development (SOARD), a branch of the Air Force Office of the Scientific Researchs International Office of the United States (AFOSR/IO). This work is based in part on observations made with the Spitzer Space Telescope, and has made use of the NASA/IPAC Infrared Science Archive, which are operated by the Jet Propulsion Laboratory, California Institute of Technology under a contract with NASA. We acknowledge use of data products from the Two Micron All Sky Survey, a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by NASA and the NSF. Funding Information: We would like to thank the anonymous referee for comments and advice that have greatly improved the clarity of the paper. MS acknowledges support from Becas Chile de Postdoctorado en el Extranjero project 74150088. We gratefully acknowledge data from the ESO Public Survey programme ID 179.B-2002 taken with the VISTA telescope, and products from the Cambridge Astronomical Survey Unit (CASU). DM, JB, RK, and JAG gratefully acknowledge support provided by the Ministry for the Economy, Development and Tourism, Programa Iniciativa Cientifica Milenio grant IC120009, awarded to the Millennium Institute of Astrophysics (MAS). DM also acknowledges support from project FONDECYT No. 1170121. DG and DM gratefully acknowledge support provided by the BASAL Center for Astrophysics and Associated Technologies (CATA) through grant AFB-170002. Funding Information: data products from the Two Micron All Sky Survey, a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by NASA and the NSF. Publisher Copyright: {\textcopyright} 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society.",
year = "2019",
month = jan,
day = "1",
doi = "10.1093/mnras/stz1752",
language = "English",
volume = "488",
pages = "2650--2657",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "2",
}