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We present a large catalogue of molecular clouds with accurate distance estimates in the southern sky. Based on the three-dimensional (3D) dust extinction map and the best-fit extinction and distance information of over 17 million stars…

星系天体物理 · 物理学 2022-02-23 Helong Guo , Bingqiu Chen , Xiaowei Liu

We present a large, homogeneous catalogue of molecular clouds within 4 kpc from the Sun at low Galactic latitudes ($|b|$ $<$ 10\degr) with unprecedented accurate distance determinations. Based on the three-dimensional dust reddening map and…

星系天体物理 · 物理学 2020-02-12 B. -Q. Chen , G. -X. Li , H. -B. Yuan , Y. Huang , Z. -J. Tian , H. -F. Wang , H. -W. Zhang , C. Wang , X. -W. Liu

Understanding the distribution and properties of molecular clouds is crucial for tracing the structure and evolution of the interstellar medium and the large-scale morphology of the Milky Way. Here we present an all-sky catalog of 3,345…

星系天体物理 · 物理学 2025-09-10 Tao Wang , Haibo Yuan , Bingqiu Chen , Guangxing Li , Bowen Huang , Helong Guo , Ruoyi Zhang

Based on the accurate color excess $E_{\rm G_{BP},G_{RP}}$ of more than 4 million stars and $E_{\rm NUV,G_{BP}}$ of more than 1 million stars from \citet{2021ApJS..254...38S}, the distance and the extinction of the molecular clouds in the…

星系天体物理 · 物理学 2021-10-20 Mingxu Sun , Biwei Jiang , He Zhao , Yi Ren

In order to study the properties and effects of high Galactic latitude dust we present an analysis of 373,303 galaxies selected from the Galaxy Evolution Explorer (GALEX) All-Sky Survey and Wide-Field Infrared Explorer (WISE) All-Sky Data…

星系天体物理 · 物理学 2015-06-15 J. E. G. Peek , David Schiminovich

We present a study to estimate the dust content in galaxy clusters by using one the most complete existing catalogues of galaxy clusters based on SDSS data and following two methods: the first one compares the colours of samples of galaxies…

宇宙学与河外天体物理 · 物理学 2014-11-11 C. M. Gutierrez , M. Lopez-Corredoira

Neutral hydrogen (HI) emission closely traces the dust column density at high Galactic latitudes and is thus a powerful tool for predicting dust extinction. However, the relation between HI column density $N_{\rm HI}$ and high-latitude dust…

星系天体物理 · 物理学 2025-04-28 Yun-Ting Cheng , Brandon S. Hensley , Tzu-Ching Chang , Olivier Doré

In this study 21 catalogues of dust clouds in the Galaxy were cross-identified by taking into account available properties such as position, angular dimensions, opacity class and velocity. An initial list of $\approx$6500 entries was…

天体物理学 · 物理学 2009-11-07 C. M. Dutra , E. Bica

Knowledge of the three-dimensional structure of Galactic molecular clouds is important for understanding how clouds are affected by processes such as turbulence and magnetic fields and how this structure effects star formation within them.…

For about two decades, a population of relative small and nearby molecular clouds has been known to exist at high Galactic latitudes. Lying more than 10$^\circ$ from the Galactic plane, these clouds have typical distances of $\sim$150 pc,…

天体物理学 · 物理学 2009-11-10 Diego F. Torres , T. M. Dame , Seth W. Digel

We examine the dust distribution around a sample of 70,000 low redshift galaxy groups and clusters derived from the Sloan Digital Sky Survey. By correlating spectroscopically identified background quasars with the galaxy groups we obtain…

宇宙学与河外天体物理 · 物理学 2015-05-18 Sean L. McGee , Michael L. Balogh

Dust in galaxies can be mapped by either the FIR/sub-mm emission, the optical or infrared reddening of starlight, or the extinction of a known background source. We compare two dust extinction measurements for a set of fifteen sections in…

We present a uniform catalog of accurate distances to local molecular clouds informed by the Gaia DR2 data release. Our methodology builds on that of Schlafly et al. (2014). First, we infer the distance and extinction to stars along…

We report the distances of molecular clouds at high Galactic latitudes (|b|>10$^\circ$) derived from parallax and G band extinction (A$_{\rm G}$) measurements in the second Gaia data release, Gaia DR2. Aided by Bayesian analyses, we…

星系天体物理 · 物理学 2019-04-03 Qing-Zeng Yan , Bo Zhang , Ye Xu , Sufen Guo , J. P. Macquart , Zheng-Hong Tang , A. J. Walsh

We present distances to 56 molecular clouds within $10\degr \leq l \leq 20\degr$ and $|b| \leq 5.25\degr$ from the Milky Way Imaging Scroll Painting (MWISP) $^{12}$CO survey, 47 of which are first-time determinations. The molecular clouds…

星系天体物理 · 物理学 2026-04-20 Juan Mei , Zhiwei Chen , Min Fang , Miaomiao Zhang , Shiyu Zhang , Zhibo Jiang

In the quest to understand high-mass star formation, it is necessary to understand that from which the high-mass stars will form -- the dense molecular gas clouds and clumps. The Herschel infrared GALactic plane survey (Hi-GAL) is a…

星系天体物理 · 物理学 2018-09-26 Erika Zetterlund , Jason Glenn , Erik Rosolowsky

Within the project Galactic Cold Cores we are carrying out Herschel photometric observations of cold interstellar clouds detected with the Planck satellite. The three fields observed as part of the Herschel science demonstration phase (SDP)…

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…

Using near infrared UKIDSS Galactic Plane Survey data, we make extinction measurements to individual stars along the same line of sight as molecular clouds. Using an existing 3D extinction map of the inner Galaxy, that provides line of…

星系天体物理 · 物理学 2015-05-18 J. J. Stead , M. G. Hoare

Distance measurements to molecular clouds are essential and important. We present directly measured distances to 169 molecular clouds in the fourth quadrant of the Milky Way. Based on the near-infrared photometry from the Two Micron All Sky…

星系天体物理 · 物理学 2020-08-05 Chen Bingqiu , Wang Shu , Hou Ligang , Yang Yihong , Li Zhiwen , Zhao He , Biwei Jiang
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