| タイトル | Theoretical Studies of Dust in the Galactic Environment: Some Recent Advances |
| 本文（外部サイト） | http://hdl.handle.net/2060/19970026111 |
| 著者（英） | Leung, Chun Ming |
| 著者所属（英） | Rensselaer Polytechnic Inst. |
| 発行日 | 1995-01-01
1995 |
| 言語 | eng |
| 内容記述 | Dust grains, although a minor constituent, play a very important role in the thermodynamics and evolution of many astronomical objects, e.g., young and evolved stars, nebulae, interstellar clouds, and nuclei of some galaxies. Since the birth of infrared astronomy over two decades ago, significant progress has been made not only in the observations of galactic dust, but also in the theoretical studies of phenomena involving dust grains. Models with increasing degree of sophistication and physical realism (in terms of grain properties, dust formation, emission processes, and grain alignment mechanisms) have become available. Here I review recent progress made in the following areas: (1) Extinction and emission of fractal grains. (2) Dust formation in radiation-driven outflows of evolved stars. (3) Transient heating and emission of very small dust grains. Where appropriate, relevant modeling results are presented and observational implications emphasized. |
| NASA分類 | Astrophysics |
| レポートNO | 97N25459
NASA-CR-205124
NAS 1.26:205124 |
| 権利 | No Copyright |
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