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相关论文: 3D extinction maps of the Milky Way disc from Gaia…

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We present new three-dimensional (3D) interstellar extinction maps in the $V$ and Gaia $G$ filters within 2 kpc of the Sun, a 3D differential extinction (dust spatial distribution density) map along the lines of sight in the same space, a…

We present a three-dimensional (3D) extinction map of the southern sky. The map covers the SkyMapper Southern Survey (SMSS) area of $\sim$ 14,000 ${\rm deg^{2}}$ and has spatial resolutions between 6.9 and 27 arcmin. Based on the multi-band…

星系天体物理 · 物理学 2021-01-13 H. -L. Guo , B. -Q. Chen , H. -B. Yuan , Y. Huang , D. -Z Liu , Y. Yang , X. -Y. Li , W. -X. Sun , X. -W. Liu

Using a grid of empirically calibrated synthetic spectra developed in our previous study, we construct an all-sky 3D extinction map from the large collection of low-resolution XP spectra in Gaia DR3. Along each line of sight, with an area…

星系天体物理 · 物理学 2024-09-27 Deokkeun An , Timothy C. Beers , Anirudh Chiti

Three-dimensional (3D) maps of Galactic interstellar dust are a tool for a wide range of uses. We aim to construct 3D maps of dust extinction in the Local Arm and surrounding regions. Gaia EDR3 photometric data were combined with 2MASS…

星系天体物理 · 物理学 2022-05-25 R. Lallement , J. -L. Vergely , C. Babusiaux , N. L. J. Cox

Gaia data are revolutionizing our knowledge of the evolutionary history of the Milky Way. 3D maps of the interstellar dust provide complementary information and are a tool for a wide range of uses. We aimed at building 3D maps of the dust…

星系天体物理 · 物理学 2019-05-29 R. Lallement , C. Babusiaux , J. L. Vergely , D. Katz , F. Arenou , B. Valette , C. Hottier , L. Capitanio

High-resolution 3D maps of interstellar dust are critical for probing the underlying physics shaping the structure of the interstellar medium, and for foreground correction of astrophysical observations affected by dust. We aim to construct…

Gaia data and stellar surveys open the way to the construction of detailed 3D maps of the Galactic interstellar (IS) dust based on the synthesis of star distances and extinctions. Reliable extinction measurements require very accurate…

Large spectroscopic surveys have enabled in the recent years the computation of three-dimensional interstellar extinction maps thanks to accurate stellar atmospheric parameters and line-of-sight distances. Such maps are complementary to 3D…

Three-dimensional dust density maps are crucial for understanding the structure of the interstellar medium of the Milky Way and the processes that shape it. However, constructing these maps requires large datasets and the methods used to…

Large stellar surveys are sensitive to interstellar dust through the effects of reddening. Using extinctions measured from photometry and spectroscopy, together with three-dimensional (3D) positions of individual stars, it is possible to…

星系天体物理 · 物理学 2018-10-31 Sara Rezaei Kh. , Coryn A. L. Bailer-Jones , David W. Hogg , Mathias Schultheis

We present new three-dimensional (3D) interstellar dust reddening maps of the Galactic plane in three colours, E(G-Ks), E(Bp-Rp) and E(H-Ks). The maps have a spatial angular resolution of 6 arcmin and covers over 7000 deg$^2$ of the…

星系天体物理 · 物理学 2018-12-19 B. -Q. Chen , Y. Huang , H. -B. Yuan , C. Wang , D. -W. Fan , M. -S. Xiang , H. -W. Zhang , Z. -J. Tian , X. -W. Liu

Aims. We aim to map the 3D distribution of the interstellar extinction of the Milky Way disk up to distances larger than those probed with the Gaia parallax alone. Methods. We apply the FEDReD (Field Extinction-Distance Relation…

星系天体物理 · 物理学 2020-09-16 C. Hottier , C. Babusiaux , F. Arenou

Inferences about the spatial density or phase-space structure of stellar populations in the Milky Way require a precise determination of the effective survey volume. The volume observed by surveys such as Gaia or near-infrared spectroscopic…

星系天体物理 · 物理学 2016-06-07 Jo Bovy , Hans-Walter Rix , Gregory M. Green , Edward F. Schlafly , Douglas P. Finkbeiner

We present a deep, high-angular resolution 3D dust map of the southern Galactic plane over $239^\circ < \ell < 6^\circ$ and $|b| < 10^\circ$ built on photometry from the DECaPS2 survey, in combination with photometry from VVV, 2MASS, and…

We present a non-parametric model for inferring the three-dimensional (3D) distribution of dust density in the Milky Way. Our approach uses the extinction measured towards stars at different locations in the Galaxy at approximately known…

星系天体物理 · 物理学 2017-03-22 S. Rezaei Kh. , C. A. L. Bailer-Jones , R. J. Hanson , M. Fouesneau

Three dimensional interstellar extinction maps provide a powerful tool for stellar population analysis. We use data from the VISTA Variables in the Via Lactea survey together with the Besan\c{c}on stellar population synthesis model of the…

星系天体物理 · 物理学 2015-06-19 M. Schultheis , B. Q. Chen , B. W. Jiang , O. A. Gonzalez , R. Enokiya , Y. Fukui , K. Torii , M. Rejkuba , D. Minniti

Galactic interstellar extinction maps are powerful and necessary tools for Milky Way structure and stellar population analyses, particularly toward the heavily-reddened bulge and in the midplane. However, due to the difficulty of obtaining…

Aims: Mapping the interstellar medium in 3D provides a wealth of insights into its inner working. The Milky Way is the only galaxy for which detailed 3D mapping can be achieved in principle. In this paper, we reconstruct the dust density in…

星系天体物理 · 物理学 2020-08-06 R. H. Leike , M. Glatzle , T. A. Enßlin

We present a direct measurement of extinction curves using corrected $Gaia$ XP spectra of the common sources in $Gaia$ DR3 and LAMOST DR7. Our analysis of approximately 370 thousand high-quality samples yielded a high-precision average…

星系天体物理 · 物理学 2024-07-18 Ruoyi Zhang , Haibo Yuan , Bowen Huang , Tao Wang , Lin Yang , Gregory M. Green , Xiangyu Zhang

The vast majority of Gaia DR1 Tycho-Gaia astrometric solution (TGAS) stars are located within a distance of 1200 pc from the Sun and up to 600 pc within the Galactic plane. Complete usage of their parallaxes is possible only if their…

星系天体物理 · 物理学 2017-07-31 George Gontcharov , Aleksandr Mosenkov
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