Dust around Herbig Ae/Be stars: modelling of observational data

• Krivova Natalia A.

  Nicholaus Copernicus Astronomical Center Astronomical Institute, St. Petersburg University MPI für Aeronomie, Katlenburg-Lindau

• Il'in Vladimir B.

  Astronomical Institute, St. Petersburg University

• Kimura Hiroshi

  MPI für Aeronomie, Katlenburg-Lindau

書誌事項

タイトル別名

• Dust around Herbig Ae Be stars modellin

抄録

Herbig Ae/Be (HAeBe) stars, young stars surrounded by dust shells, are believed to be precursors of β Pic-like stars, and the dust around them is thought to be a possible source material for the formation of planets. A group of the HAeBe stars (UX Ori, WW Vul, etc.) shows large brightness variations. The dust in the vicinity of these stars is responsible not only for their excess emission in the infrared, anomalous extinction in the ultraviolet and visual, and specific spatial distributions of the intensity and polarization, but also for the “blueing” effect in the colour-magnitude diagrams and the intrinsic polarization increase observed in deep minima.<BR>In contrast to the previous studies, we take advantage of a simultaneous modelling of all the observational data mentioned. Monte-Carlo simulations of polarized radiation transfer in the shells with a spheroidal density distribution have been performed for different dust grain models. The results are compared with observations of a typical HAeBe star WW Vul. Some effects related to a possible porosity of the circumstellar grains are considered.

収録刊行物

• Ｅａｒｔｈ，　Ｐｌａｎｅｔｓ　ａｎｄ　Ｓｐａｃｅ

  Ｅａｒｔｈ，　Ｐｌａｎｅｔｓ　ａｎｄ　Ｓｐａｃｅ 50 (6-7), 603-606, 1998

  地球電磁気・地球惑星圏学会 、公益社団法人 日本地震学会、特定非営利活動法人 日本火山学会、日本測地学会、日本惑星科学会

キーワード

• Space and Planetary Science
• Geology

詳細情報

• CRID: 1390282681485628672
• NII論文ID: 10002207338
• NII論文ID: 130003955920
• NII書誌ID: AA11211921
• DOI: 10.1186/bf03352154
• COI: 1:CAS:528:DyaK1cXntlSis7Y%3D
• ISSN: 18805981
• ISSN: 13438832
• NDL書誌ID: 4552215
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4552215
• Web Site: https://link.springer.com/content/pdf/10.1186/BF03352154.pdf
• Web Site: https://link.springer.com/article/10.1186/BF03352154/fulltext.html
• Web Site: http://link.springer.com/content/pdf/10.1186/BF03352154
• 本文言語コード: en
• データソース種別:
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