A colour-excess extinction map of the southern Galactic disc from the VVV and GLIMPSE surveys

M. Soto, R. Barbá, D. Minniti, A. Kunder, D. Majaess, J. L. Nilo-Castellón, J. Alonso-García, G. Leone, L. Morelli, L. Haikala, V. Firpo, P. Lucas, J. P. Emerson, C. Moni Bidin, D. Geisler, R. K. Saito, S. Gurovich, R. Contreras Ramos, M. Rejkuba, M. BarbieriA. Roman-Lopes, M. Hempel, M. V. Alonso, L. D. Baravalle, J. Borissova, R. Kurtev, F. Milla

Resultado de la investigación: Article

Resumen

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’s Vista Variables in the Vía Láctea (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.

Idioma originalEnglish
Páginas (desde-hasta)2650-2657
Número de páginas8
PublicaciónMonthly Notices of the Royal Astronomical Society
Volumen488
N.º2
DOI
EstadoPublished - 1 ene 2019

Huella dactilar

extinction
color
photometry
near infrared
infrared photometry
high resolution
European Southern Observatory
dust
sampling

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Citar esto

Soto, M. ; Barbá, R. ; Minniti, D. ; Kunder, A. ; Majaess, D. ; Nilo-Castellón, J. L. ; Alonso-García, J. ; Leone, G. ; Morelli, L. ; Haikala, L. ; Firpo, V. ; Lucas, P. ; Emerson, J. P. ; Moni Bidin, C. ; Geisler, D. ; Saito, R. K. ; Gurovich, S. ; Contreras Ramos, R. ; Rejkuba, M. ; Barbieri, M. ; Roman-Lopes, A. ; Hempel, M. ; Alonso, M. V. ; Baravalle, L. D. ; Borissova, J. ; Kurtev, R. ; Milla, F. / A colour-excess extinction map of the southern Galactic disc from the VVV and GLIMPSE surveys. En: Monthly Notices of the Royal Astronomical Society. 2019 ; Vol. 488, N.º 2. pp. 2650-2657.
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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’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",
year = "2019",
month = "1",
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doi = "10.1093/mnras/stz1752",
language = "English",
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journal = "Monthly Notices of the Royal Astronomical Society",
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Soto, M, Barbá, R, Minniti, D, Kunder, A, Majaess, D, Nilo-Castellón, JL, Alonso-García, J, Leone, G, Morelli, L, Haikala, L, Firpo, V, Lucas, P, Emerson, JP, Moni Bidin, C, Geisler, D, Saito, RK, Gurovich, S, Contreras Ramos, R, Rejkuba, M, Barbieri, M, Roman-Lopes, A, Hempel, M, Alonso, MV, Baravalle, LD, Borissova, J, Kurtev, R & Milla, F 2019, 'A colour-excess extinction map of the southern Galactic disc from the VVV and GLIMPSE surveys', Monthly Notices of the Royal Astronomical Society, vol. 488, n.º 2, pp. 2650-2657. https://doi.org/10.1093/mnras/stz1752

A colour-excess extinction map of the southern Galactic disc from the VVV and GLIMPSE surveys. / Soto, M.; Barbá, R.; Minniti, D.; Kunder, A.; Majaess, D.; Nilo-Castellón, J. L.; Alonso-García, J.; Leone, G.; Morelli, L.; Haikala, L.; Firpo, V.; Lucas, P.; Emerson, J. P.; Moni Bidin, C.; Geisler, D.; Saito, R. K.; Gurovich, S.; Contreras Ramos, R.; Rejkuba, M.; Barbieri, M.; Roman-Lopes, A.; Hempel, M.; Alonso, M. V.; Baravalle, L. D.; Borissova, J.; Kurtev, R.; Milla, F.

En: Monthly Notices of the Royal Astronomical Society, Vol. 488, N.º 2, 01.01.2019, p. 2650-2657.

Resultado de la investigación: Article

TY - JOUR

T1 - A colour-excess extinction map of the southern Galactic disc from the VVV and GLIMPSE surveys

AU - Soto, M.

AU - Barbá, R.

AU - Minniti, D.

AU - Kunder, A.

AU - Majaess, D.

AU - Nilo-Castellón, J. L.

AU - Alonso-García, J.

AU - Leone, G.

AU - Morelli, L.

AU - Haikala, L.

AU - Firpo, V.

AU - Lucas, P.

AU - Emerson, J. P.

AU - Moni Bidin, C.

AU - Geisler, D.

AU - Saito, R. K.

AU - Gurovich, S.

AU - Contreras Ramos, R.

AU - Rejkuba, M.

AU - Barbieri, M.

AU - Roman-Lopes, A.

AU - Hempel, M.

AU - Alonso, M. V.

AU - Baravalle, L. D.

AU - Borissova, J.

AU - Kurtev, R.

AU - Milla, F.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - 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’s Vista Variables in the Vía Láctea (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.

AB - 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’s Vista Variables in the Vía Láctea (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.

KW - Galaxy: disc

KW - Galaxy: stellar content

KW - Galaxy: structure

KW - Infrared: stars

KW - Surveys

UR - http://www.scopus.com/inward/record.url?scp=85074637587&partnerID=8YFLogxK

U2 - 10.1093/mnras/stz1752

DO - 10.1093/mnras/stz1752

M3 - Article

AN - SCOPUS:85074637587

VL - 488

SP - 2650

EP - 2657

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 1745-3925

IS - 2

ER -