3D radiative transfer studies of HII/PDR complexes in star-forming galaxies

恒星形成星系中 HII/PDR 复合体的 3D 辐射传输研究

基本信息

批准号：
ST/H001794/1
负责人：
Serena Viti
金额：
$ 48.66万
依托单位：
University College London
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2010
资助国家：
英国
起止时间：
2010 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=ST%2FH001794%2F1
关键词：
3D radiative transfer studies HII

项目摘要

Each new generation of stars in our own and other galaxies contributes to the enrichment of the interstellar medium (ISM) in heavy elements. Over time, these heavy elements, which may be injected as gas or dust particles, and the outflows that carry them, progressively modify the way that new stars and planets form, as well as the overall properties of the galaxies themselves. Gaining a greater understanding of star formation and the ISM evolution of galaxies, and their interplay, has provided the motivation for the construction of a large number of international facilities, including the VLT, ALMA, the Spitzer Space Telescope, the Herschel Space Observatory and the James Webb Space Telescope. These missions will give us access to observations of unprecedented spatial and spectral resolution. Due to these dramatic observational advances, there is a distinct need for theoretical tools that will allow us to correctly interpret the wealth of observational data that we will receive: the research outlined in this proposal aims to provide the community with a state-of-the-art self-consistent 3-dimensional radiative transfer and chemical modelling tool which will be able to simulate and fit multi-wavelength photometric and spectroscopic high resolution data from star forming regions in our own and other galaxies. The products of this plan of research will form an essential part of the preparatory science for upcoming missions, such as Herschel, ALMA and the JWST.

我们星系和其他星系中的每一代新一代恒星都有助于星际介质（ISM）中重元素的富集。随着时间的推移，这些可能以气体或尘埃颗粒形式注入的重元素，以及携带它们的流出物，逐渐改变新恒星和行星的形成方式，以及星系本身的整体特性。对恒星形成和星系的ISM演化及其相互作用有了更深入的了解，为建造大量国际设施提供了动力，包括VLT、ALMA、斯皮策太空望远镜、赫歇尔太空天文台和詹姆斯·韦伯太空望远镜。这些任务将使我们能够获得前所未有的空间和光谱分辨率的观测结果。由于这些巨大的观测进展，我们迫切需要理论工具来正确解释我们将收到的大量观测数据：本提案中概述的研究旨在为社区提供最新的研究成果。 -艺术自洽3维辐射传输和化学建模工具，将能够模拟和拟合来自我们自己和其他星系的恒星形成区域的多波长光度和光谱高分辨率数据。该研究计划的产品将成为赫歇尔、ALMA 和 JWST 等即将到来的任务的准备科学的重要组成部分。