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Akademický článek

Evolution of the Local Spiral Structure Revealed by OB-type Stars in Gaia DR3

Autor: Q. A. Ge, J. J. Li, C. J. Hao, Z. H. Lin, L. G. Hou, D. J. Liu, Y. J. Li, S. B. Bian

Publikováno v: The Astronomical Journal, Vol 168, Iss 1, p 25 (2024)

The structure and evolution of the spiral arms of the Milky Way have long been an important yet controversial issue. The wide age range of OB-type stars, coupled with the large amount of high-precision astrometric data provided by Gaia DR3, presents

Externí odkaz: https://doaj.org/article/64963f7d58714dbd8cb1e78849026b12

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Akademický článek

Probing the Nature of Rotation in the Pleiades, Alpha Persei, and Hyades Clusters

Autor: C. J. Hao, Y. Xu, L. G. Hou, S. B. Bian, Z. H. Lin, Y. J. Li, Y. W. Dong, D. J. Liu

Publikováno v: The Astrophysical Journal, Vol 963, Iss 2, p 153 (2024)

Unraveling the internal kinematics of open clusters is crucial for understanding their formation and evolution. However, there is a dearth of research on this topic, primarily due to the lack of high-quality kinematic data. Using the exquisite-precis

Externí odkaz: https://doaj.org/article/d7f66c70b8394e4ba34fb5daa83f28dc

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Akademický článek

What Does the Milky Way Look Like?

Autor: Y. Xu, C. J. Hao, D. J. Liu, Z. H. Lin, S. B. Bian, L. G. Hou, J. J. Li, Y. J. Li

Publikováno v: The Astrophysical Journal, Vol 947, Iss 2, p 54 (2023)

In spite of much work, the overall spiral structure morphology of the Milky Way remains somewhat uncertain. In the last two decades, accurate distance measurements have provided us with an opportunity to solve this issue. Using the precise locations

Externí odkaz: https://doaj.org/article/82efcea9f7cd4954aa06620eb6fc615d

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Akademický článek

The Spiral Structure in the Solar Neighborhood

Autor: L. G. Hou

Publikováno v: Frontiers in Astronomy and Space Sciences, Vol 8 (2021)

The spiral structure in the solar neighborhood is an important issue in astronomy. In the past few years, there has been significant progress in observation. The distances for a large number of good spiral tracers, i.e., giant molecular clouds, high-

Externí odkaz: https://doaj.org/article/c1cbc4557b074e008fe4a5ccc704ee01

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On the Nature of Rotation in the Praesepe Cluster

Autor: C. J. Hao, Y. Xu, S. B. Bian, L. G. Hou, Z. H. Lin, Y. J. Li, D. J. Liu

Publikováno v: The Astrophysical Journal. 938:100

Although a large number of Galactic open clusters (OCs) have been identified, the internal kinematic properties (e.g., rotation) of almost all the known OCs are still far from clear. With the high-precision astrometric data of Gaia EDR3, we have deve

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4ee1053d8d55dbaa6cf7bbc7f19f13a
https://doi.org/10.3847/1538-4357/ac92fc

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Radio recombination line observations towards Spitzer infrared bubbles with the TianMa radio telescope

Autor: X. Y. Gao, L. G. Hou

Publikováno v: Monthly Notices of the Royal Astronomical Society. 489:4862-4874

Many of the Spitzer infrared bubbles identified by the Milky Way Project (MWP) are suggested to be $\rm{H \small {II}} $ regions in nature. More than 70 per cent of the ∼5000 known bubbles do not have radio recombination line (RRL) observations, he

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6ee749add4aa43e42e3e3d841aed7dde
https://doi.org/10.1093/mnras/stz2466

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The distances to molecular clouds in the fourth Galactic quadrant

Autor: Yihong Yang, Shu Wang, Biwei Jiang, L. G. Hou, Zhiwen Li, Bingqiu Chen, He Zhao

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 Survey an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76b897f73080bf34f0ae886991f973bd
http://arxiv.org/abs/2006.11966

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The nearby spiral density-wave structure of the Galaxy: line-of-sight velocities of the Gaia DR2 main-sequence A, F, G, and K stars

Autor: Evgeny Griv, L. G. Hou, Ing-Guey Jiang, Michael Gedalin, I-Chun Shih

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 493 (2), pp.2111-2126. ⟨10.1093/mnras/staa357⟩

Distances and velocities of $\approx \!2400\, 000$ main-sequence A, F, G, and K stars are collected from the second data release of ESA's Gaia astrometric mission. This material is analysed to find evidence of radial and azimuthal systematic non-circ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09419a57f6d9c1a0698bc496c65621d2
https://hal.archives-ouvertes.fr/hal-03240597

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