Three-dimensional structure of the milky way dust: modeling of LAMOST data

Abstract

We present a three-dimensional modeling of the Milky Way dust distribution by fitting the value-added star catalog of LAMOST spectral survey. The global dust distribution can be described by an exponential disk with scale-length of 3,192 pc and scale height of 103 pc. In this modeling, the Sun is located above the dust disk with a vertical distance of 23 pc. Besides the global smooth structure, two substructures around the solar position are also identified. The one located at $150^{\circ }<l<200^{\circ }$ and $-5^{\circ }<b<-30^{\circ }$ is consistent with the Gould Belt model of \citet{Gontcharov2009}, and the other one located at $140^{\circ }<l<165^{\circ }$ and $0^{\circ }<b<15^{\circ }$ is associated with the Camelopardalis molecular clouds.

arXiv comment15 pages, 6 figure, accepted by ApJ

References in corpus (40)

• The Sloan Digital Sky Survey: Technical Summary
• Interstellar Dust Grains
• The Star Formation Law in Nearby Galaxies on Sub-Kpc Scales
• The Galaxy in Context: Structural, Kinematic and Integrated Properties
• Modelling the Galactic Interstellar Extinction Distribution in Three Dimensions
• The Milky Way Tomography with SDSS: II. Stellar Metallicity
• Three Dimensional Structure of the Milky Way Disk
• Star Formation Efficiencies and Lifetimes of Giant Molecular Clouds in the Milky Way
• Empirical extinction coefficients for the GALEX, SDSS, 2MASS and WISE passbands
• CO Isotopologues in the Perseus Molecular Cloud Complex: the X-Factor and Regional Variations
• Radial distribution of stars, gas and dust in SINGS galaxies. II. Derived dust properties
• The Optical-Infrared Extinction Curve and its Variation in the Milky Way
• Dust Production and Particle Acceleration in Supernova 1987A Revealed with ALMA
• A Large Catalog of Accurate Distances to Molecular Clouds from PS1 Photometry
• Molecular gas in the Andromeda galaxy
• The LAMOST Stellar Parameter Pipeline at Peking University --- LSP3
• The Origin of Dust in the Early Universe: Probing the Star Formation History of Galaxies by their Dust Content
• LAMOST Spectroscopic Survey of the Galactic Anti-centre (LSS-GAC): target selection and the first release of value-added catalogues
• The distribution of the ISM in the Milky Way A three-dimensional large-scale model
• DustPedia - A Definitive Study of Cosmic Dust in the Local Universe
• Radial distribution of dust, stars, gas, and star-formation rate in DustPedia face-on galaxies
• The Milky Way's external disc constrained by 2MASS star counts
• The dust distribution in edge-on galaxies. Radiative transfer fits of V and K'-band images
• The distribution of interstellar dust in CALIFA edge-on galaxies via oligochromatic radiative transfer fitting
• The JCMT Nearby Galaxies Legacy Survey III: Comparisons of cold dust, polycyclic aromatic hydrocarbons, molecular gas, and atomic gas in NGC 2403
• Distribution and kinematics of atomic and molecular gas inside the Solar circle
• A resolved analysis of cold dust and gas in the nearby edge-on spiral NGC 891
• The resolved star-formation relation in nearby active galactic nuclei
• Using M Dwarf Spectra to Map Extinction in the Local Galaxy
• The Dust & Gas Properties of M83
• The CO-to-H2 Conversion Factor across the Perseus Molecular Cloud
• Molecular Gas in NUclei of GAlaxies (NUGA). X. The Seyfert 2 galaxy NGC 3147
• The Herschel Virgo Cluster Survey. XI. Environmental effects on molecular gas and dust in spiral disks
• Constraining the Galactic structure parameters with the XSTPS-GAC and SDSS photometric surveys
• Molecular clouds in the center of M81
• Influence of the Gould Belt on Interstellar Extinction
• The Parsec-Scale Relationship Between I_CO and A_V in Local Molecular Clouds
• The Gould Belt
• The System of Molecular Clouds in the Gould Belt
• Mapping the three-dimensional multi-band extinction and diffuse interstellar bands in the Milky Way with LAMOST

Cited by in corpus (19)

• GRB 221009A: Discovery of an Exceptionally Rare Nearby and Energetic Gamma-Ray Burst
• Overview of the LAMOST survey in the first decade
• Comprehensive Catalogue of the Overall Best Distances and Properties of 402 Galactic Novae
• Empirical temperature- and extinction-dependent extinction coefficients for the GALEX, Pan-STARRS1, Gaia, SDSS, 2MASS, and WISE passbands
• Three-Dimensional Distribution of the Interstellar Dust in the Milky Way
• Planetary Nebula Luminosity Function distances for 19 galaxies observed by PHANGS-MUSE
• J-PLUS: Spectral evolution of white dwarfs by PDF analysis
• Gaia Data Release 3: Exploring and mapping the diffuse interstellar band at 862 nm
• Dust in the outskirts of M31 and M33
• KMT-2021-BLG-0171Lb and KMT-2021-BLG-1689Lb: Two Microlensing Planets in the KMTNet High-cadence Fields with Followup Observations
• The Galactic Nova Rate: Estimates from the ASAS-SN and Gaia Surveys
• An Earth-Mass Planet and a Brown Dwarf in Orbit Around a White Dwarf
• A Blueprint for the Milky Way's Stellar Populations. II. Improved Isochrone Calibration in the SDSS and Pan-STARRS Photometric Systems
• AzTEC Survey of the Central Molecular Zone: Increasing Spectral Index of Dust with Density
• The MUSE view of the Sculptor galaxy: survey overview and the planetary nebulae luminosity function
• The Correlation Between Dust and Gas Contents in Molecular Clouds
• GalaxyGenius: Mock galaxy image generator for various telescopes from hydrodynamical simulations
• The Vertical Structure and Asymmetry of Mg ii-enriched Gas in the Milky Way Disk
• J-PLUS: Systematic impact of metallicity on photometric calibration with the stellar locus