Measurement of high-temperature optical constants of solar-nebula minerals

太阳星云矿物高温光学常数的测量

• 批准号: 146168690
• 负责人: Dr. Harald Mutschke
• 金额: --
• 依托单位: Astrophysikalisches Institut und Universitätssternwarte
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/146168690?language=en
• 关键词: Measurement; temperature; optical; constants; solar

Models of the solar nebula and of other protoplanetary disks, which aim at linking our knowledge about the early solar system to astronomical observations of nowadays young stellar systems, require among other basic data the optical constants of the solid constituents of such systems. So far, such data exist mainly for room temperature, sometimes also for low temperatures. In this project, we intend to measure the temperature dependence of optical constants and mid-infrared spectra for solar-nebula minerals up to temperatures of 1100 K. In the 3rd funding period we will focus on materials being similar to the original interstellar dust (amorphous magnesium-iron silicates) and having experienced irreversible structural changes by exposure to heat. Based on our experience with the production of such silicates we will investigate the structural changes depending on their iron content and other parameters and will measure the mid-infrared optical properties of the products. The resulting data will extend our internet database of optical constants of astrophysical relevant minerals and solids, by which they will be available for mineralogists and astrophysicists.

太阳星云和其他原行星盘的模型旨在将我们对早期太阳系的了解与当今年轻恒星系统的天文观测联系起来，除了其他基本数据外，还需要这些系统的固体成分的光学常数。到目前为止，此类数据主要针对室温，有时也针对低温。在这个项目中，我们打算测量温度高达 1100 K 的太阳星云矿物的光学常数和中红外光谱的温度依赖性。在第三个资助期内，我们将重点研究与原始星际尘埃（无定形镁铁硅酸盐）相似的材料，并在受热时经历了不可逆的结构变化。根据我们生产此类硅酸盐的经验，我们将研究其铁含量和其他参数的结构变化，并测量产品的中红外光学性能。由此产生的数据将扩展我们的天体物理学相关矿物和固体光学常数的互联网数据库，矿物学家和天体物理学家将可以使用它们。

项目成果

TEMPERATURE-DEPENDENT INFRARED OPTICAL CONSTANTS OF OLIVINE AND ENSTATITE

• DOI: 10.1088/0004-637x/798/2/125
• 发表时间: 2015-01
• 期刊: The Astrophysical Journal
• 作者: S. Zeidler;H. Mutschke;Th. Posch

Far-infrared continuum absorption of olivine at low temperatures

• DOI: 10.5047/eps.2013.07.003
• 发表时间: 2013-10
• 期刊: Earth, Planets and Space
• 作者: H. Mutschke;S. Zeidler;H. Chihara

Optical Properties of Interstellar Dust from Cosmic Dust Analogs Studied in the Lab

实验室研究的宇宙尘埃类似物的星际尘埃的光学特性

• DOI: 10.22323/1.207.0042
• 发表时间: 2013
• 作者: H. Mutschke

Absorption of crystalline water ice in the far infrared at different temperatures

不同温度下结晶水冰对远红外的吸收

• DOI: 10.1051/0004-6361/201424276
• 发表时间: 2015
• 期刊: arXiv: Earth and Planetary Astrophysics
• 作者: C. Reinert;H. Mutschke;A. Krivov;T. Löhne;P. Mohr
• 通讯作者: P. Mohr