Extensive studies of Interstellar Matter and Star Formation Process from Multi-wavelength surveys of the Large Magellanic Cloud

通过大麦哲伦星云的多波长巡天对星际物质和恒星形成过程进行广泛研究

• 批准号: 22540250
• 负责人: KAWAMURA Akiko
• 金额: $ 2.83万
• 依托单位: National Astronomical Observatory of Japan (2011-2012)Nagoya University (2010)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22540250/
• 关键词: 電波天文学; 星間分子雲; 星形成; 大マゼラン雲; 大マゼラン

The Magellanic system is one of the nearest galaxies to us and this proximity enables us to observe Interstellar Medium, young stellar objects and so on with highest resolution. It is indeed one of the most crucial targets since molecular clouds are resolved to molecular cloud cores - this is not possible for the other external galaxies yet - with the ground base radio telescopes. In this program, we conducted mm and submm high sensitivity observations to survey the molecular clouds and cloud cores, and derived their structure and physical properties. We also obtained the structure and properties of the interstellar dust from the most recent infrared satellite observations. These new infrared datasets are of important to obtain a new database of the young stellar objects. Careful comparisons of these datasets lead us to obtaine deeper knowledge of the interstellar medium, such as influence of active star formation and/or supergiant shells to the surrounding materials, as well as some existence of CO dark molecular gas.

麦哲伦星系是离我们最近的星系之一，这种接近使我们能够以最高的分辨率观察星际介质，年轻的恒星物体等。它确实是最关键的目标之一，因为分子云被解析为分子云核心-这对于其他外部星系来说是不可能的-用地面射电望远镜。在这个计划中，我们进行了毫米级和亚毫米级的高灵敏度观测，对分子云和云核进行了观测，并得到了它们的结构和物理性质。我们还从最近的红外卫星观测中获得了星际尘埃的结构和性质。这些新的红外数据对于建立新的年轻天体数据库具有重要意义。通过对这些数据集的仔细比较，我们获得了关于星际介质的更深层次的知识，例如活动星星形成和/或超巨星壳层对周围物质的影响，以及CO暗分子气体的存在。

项目成果

MOLECULAR CLOUDS IN THE TRIFID NEBULA M20: POSSIBLE EVIDENCE FOR A CLOUD–CLOUD COLLISION IN TRIGGERING THE FORMATION OF THE FIRST GENERATION STARS

• DOI: 10.1088/0004-637x/738/1/46
• 发表时间: 2011-06
• 期刊: The Astrophysical Journal
• 作者: K. Torii;R. Enokiya;H. Sano;S. Yoshiike;N. Hanaoka;A. Ohama;N. Furukawa;J. Dawson;N. Moribe;K. Oishi;Y. Nakashima;T. Okuda;H. Yamamoto;A. Kawamura;N. Mizuno;H. Maezawa;T. Onishi;A. Mizuno;Y. Fukui

THE MAGELLANIC MOPRA ASSESSMENT (MAGMA). I. THE MOLECULAR CLOUD POPULATION OF THE LARGE MAGELLANIC CLOUD

• DOI: 10.1088/0067-0049/197/2/16
• 发表时间: 2011-08
• 期刊: The Astrophysical Journal Supplement Series
• 作者: T. Wong;A. Hughes;J. Ott;E. Muller;J. Pineda;J. Bernard;Y. Chu;Y. Fukui;R. Gruendl;C. Henkel;A. Kawamura;U. Klein;L. Looney;S. Maddison;Y. Mizuno;D. Paradis;J. Seale;Daniel E. Welty U. of Illinois;Usa;U. Swinburne;Australia.;Cass;Mpia;Heidelberg;H Germany;Nrao;U. Nagoya;Japan.;Naoj;Jpl;Irap;Toulouse;France.;Mpifr;Bonn;U. KingAbdulaziz;S. Arabia;AIfA;Stsci

Planck early results. XVII.Origin of the submillimetre excess dust emission in the Magellanic Clouds

普朗克的早期成果。

• DOI: 10.1051/0004-6361/201116473
• 发表时间: 2011
• 期刊: Astronomy & Astrophysics
• 影响因子: 6.5
• 作者: Planck Collaboration ; Ade;P.A.R.;et al
• 通讯作者: et al

Effect of Metallicity on the Chemical Properties of Ices around embedded Young Stellar Objects

金属丰度对嵌入年轻恒星周围冰化学性质的影响

• 发表时间: 2011
• 期刊: IAU Symp.280
• 作者: Shimonishi;T.;et al.
• 通讯作者: et al.

Physical Properties of Molecular Clouds in the Magellanic Clouds Revealed by Observations in Multi-Transition CO Molecular Lines, New Trends in Radio Astronomy in the ALMA Era

多跃迁CO分子谱线观测揭示麦哲伦云分子云物理性质，ALMA时代射电天文学新趋势

• 发表时间: 2012
• 作者: 河村晶子