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

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A new near-IR window of low extinction in the Galactic plane. / Minniti, Dante; Saito, Roberto K.; Gonzalez, Oscar A.; Alonso-García, Javier; Rejkuba, Marina; Barbá, Rodolfo; Irwin, Mike; Kammers, Roberto; Lucas, Philip; Majaess, Daniel; Valenti, Elena.

In: Astronomy and Astrophysics, Vol. 616, A26, 01.08.2018.

Research output: Contribution to journalArticle

Harvard

Minniti, D, Saito, RK, Gonzalez, OA, Alonso-García, J, Rejkuba, M, Barbá, R, Irwin, M, Kammers, R, Lucas, P, Majaess, D & Valenti, E 2018, 'A new near-IR window of low extinction in the Galactic plane', Astronomy and Astrophysics, vol. 616, A26. https://doi.org/10.1051/0004-6361/201732099

APA

Minniti, D., Saito, R. K., Gonzalez, O. A., Alonso-García, J., Rejkuba, M., Barbá, R., ... Valenti, E. (2018). A new near-IR window of low extinction in the Galactic plane. Astronomy and Astrophysics, 616, [A26]. https://doi.org/10.1051/0004-6361/201732099

Vancouver

Minniti D, Saito RK, Gonzalez OA, Alonso-García J, Rejkuba M, Barbá R et al. A new near-IR window of low extinction in the Galactic plane. Astronomy and Astrophysics. 2018 Aug 1;616. A26. https://doi.org/10.1051/0004-6361/201732099

Author

Minniti, Dante ; Saito, Roberto K. ; Gonzalez, Oscar A. ; Alonso-García, Javier ; Rejkuba, Marina ; Barbá, Rodolfo ; Irwin, Mike ; Kammers, Roberto ; Lucas, Philip ; Majaess, Daniel ; Valenti, Elena. / A new near-IR window of low extinction in the Galactic plane. In: Astronomy and Astrophysics. 2018 ; Vol. 616.

Bibtex

@article{04872edcdc0540bc8e3a8bd04faefef5,
title = "A new near-IR window of low extinction in the Galactic plane",
abstract = "Aims. 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 V{\'i}a L{\'a}ctea (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.",
keywords = "Dust, extinction, Galaxy: Disk, Galaxy: Structure, Surveys",
author = "Dante Minniti and Saito, {Roberto K.} and Gonzalez, {Oscar A.} and Javier Alonso-Garc{\'i}a and Marina Rejkuba and Rodolfo Barb{\'a} and Mike Irwin and Roberto Kammers and Philip Lucas and Daniel Majaess and Elena Valenti",
note = "Reproduced with permission from Astronomy & Astrophysics. {\circledC} 2018 ESO. Comments: 6 pages, 6 figures. Accepted for publication in Astronomy & Astrophysics",
year = "2018",
month = "8",
day = "1",
doi = "10.1051/0004-6361/201732099",
language = "English",
volume = "616",
journal = "Astronomy & Astrophysics",
issn = "0004-6361",
publisher = "EDP Sciences",

}

RIS

TY - JOUR

T1 - A new near-IR window of low extinction in the Galactic plane

AU - Minniti, Dante

AU - Saito, Roberto K.

AU - Gonzalez, Oscar A.

AU - Alonso-García, Javier

AU - Rejkuba, Marina

AU - Barbá, Rodolfo

AU - Irwin, Mike

AU - Kammers, Roberto

AU - Lucas, Philip

AU - Majaess, Daniel

AU - Valenti, Elena

N1 - Reproduced with permission from Astronomy & Astrophysics. © 2018 ESO. Comments: 6 pages, 6 figures. Accepted for publication in Astronomy & Astrophysics

PY - 2018/8/1

Y1 - 2018/8/1

N2 - Aims. 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.

AB - Aims. 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.

KW - Dust, extinction

KW - Galaxy: Disk

KW - Galaxy: Structure

KW - Surveys

UR - http://www.scopus.com/inward/record.url?scp=85051981165&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/201732099

DO - 10.1051/0004-6361/201732099

M3 - Article

VL - 616

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

SN - 0004-6361

M1 - A26

ER -