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相关论文: A large catalogue of molecular clouds in the south…

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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

We present a catalog of dust clouds at high Galactic latitude based on the Planck 857 GHz dust emission data. Using a clustering hierarchical algorithm, 315 dust cloud at high Galactic latitudes are identified. Additionally, using the…

星系天体物理 · 物理学 2024-08-14 Mingxu Sun , Biwei Jiang , Helong Guo , Wenyuan Cui

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

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.…

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

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

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

We want to estimate the distance to molecular clouds in the solar vicinity in a statistically precise way. Clouds are recognized as extinction discontinuities. The extinction is estimated from the $(H-K) \ vs. \ (J-H)$ diagram and distances…

星系天体物理 · 物理学 2010-06-21 Jens Knude

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…

3D tomography of the interstellar dust and gas may be useful in many respects, from the physical and chemical evolution of the ISM itself to foreground decontamination of the CMB, or various studies of the environments of specific objects.…

星系天体物理 · 物理学 2015-05-18 Jean-Luc Vergely , Bernard Valette , Rosine Lallement , Severine Raimond

We dendrogram the Leike et al. 2020 3D dust map, leveraging its $\sim 1$ pc spatial resolution to produce a uniform catalog of molecular clouds in the solar neighborhood. Using accurate distances, we measure the properties of 65 clouds in…

星系天体物理 · 物理学 2024-02-02 Shlomo Cahlon , Catherine Zucker , Alyssa Goodman , Charles Lada , João Alves

Molecular clouds are regions of dense gas and dust in space where new stars and planets are born. There is a strong correlation between the distribution of dust and molecular gas in molecular clouds. The present work focuses on the…

星系天体物理 · 物理学 2024-10-28 Rui-Zhi Li , Bing-Qiu Chen , Guang-Xing Li , Bo-Ting Wang , Hao-Ming Ren , Qi-Ning Guo

We present distances to 76 medium-sized molecular clouds and an extra large-scale one in the second Galactic quadrant ($104.75^\circ <l<150.25^\circ $ and $|b|<5.25^\circ$), 73 of which are accurately measured for the first time. Molecular…

星系天体物理 · 物理学 2021-02-03 Qing-Zeng Yan , Ji Yang , Yan Sun , Yang Su , Ye Xu , Hongchi Wang , Xin Zhou , Chen Wang

The Sun is located close to the Galactic mid-plane, meaning that we observe the Galaxy through significant quantities of dust. Moreover, the vast majority of the Galaxy's stars also lie in the disc, meaning that dust has an enormous impact…

星系天体物理 · 物理学 2024-01-24 Amery Gration , John Magorrian

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 leverage the 1 pc spatial resolution of the Leike et al. 2020 3D dust map to characterize the three-dimensional structure of nearby molecular clouds ($d \lesssim 400$ pc). We start by "skeletonizing" the clouds in 3D volume density space…

We examine the three-dimensional structure and dust extinction properties in a ~ 200 pc $\times$ 100 pc region in the southwest bar of the Small Magellanic Cloud (SMC). We model a deep Hubble Space Telescope optical color-magnitude diagram…

Distance measurements to molecular clouds are important, but are often made separately for each cloud of interest, employing very different different data and techniques. We present a large, homogeneous catalog of distances to molecular…

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
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