研究生: |
溫杰勳 |
---|---|
論文名稱: |
古德帶是否為環狀構造 |
指導教授: |
傅學海
Fu, Hsieh-Hai |
學位類別: |
碩士 Master |
系所名稱: |
地球科學系 Department of Earth Sciences |
論文出版年: | 2001 |
畢業學年度: | 89 |
語文別: | 中文 |
中文關鍵詞: | 古德帶 、恆星運動 |
論文種類: | 學術論文 |
相關次數: | 點閱:127 下載:0 |
分享至: |
查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報 |
本研究是採用Hipparcos星表,以500 pc內的O、B星做為對象,分析其位置的空間分布和速度的分布,並且和Guillout et al.(1998)所提出古德帶模式相互比較,來探討古德帶(Gould Belt)可能呈現的結構。
首先,把條件不適合的O、B星刪除,並且對各種不同情況做討論,並且對每一顆符合條件的O、B星畫出以太陽為中心的二維空間分布圖,並以100 pc為間距,再畫出每個區間的空間分布圖。再利用300 pc的空間分布圖和前面所提及的模式做比較,發現古德帶的環狀結構可能比模式所推測的還要近似盤狀。
下一步把符合條件的徑向速度資料換算成空間速度分布,並且和前面的模式相比較之下,換算出古德帶相較於銀河盤面的傾角和其長軸的銀經方向,發現其值分別為18度及33.9度。相比較之下,此結果和前人所得到的結果相近,表示古德帶的環狀(ring)結構相近於前人所推測之構造。
1、王浩全,(1998),依據Hipparcos星表探討銀河系之運動模式, 國立台灣師範大學地球科學系大學畢業論文.
2、Barbier-Brossat, M. & Figon, P.,(2000), Catalogue général de vitesses radiales moyennes pour les étoiles galactiques. Mean radial velocities catalog of galactic stars, Astronomy & Astrophysics Journal Supplement, vol. 142, 217-223.
3、Colomb, F. R., Poppel, W. G. L.& Heiles, C.,(1980), Galactic HI at |b| >= 10 deg. II. photographic presentation of the combined southern and northern data, Astronomy & Astrophysics Journal Supplement, vol. 40, 47-55.
4、Comeron, F. & Torra, J.,(1994), The origin of the Gould Belt by the impact of a high velocity cloud on the galactic disk, Astronomy & Astrophysics Journal, vol. 281, 35-45.
5、Fricke, W. & Tsioumis, A., (1975), Galactic rotation and local irregularities from fundamental proper motions and radial velocities, Astronomy & Astrophysics Journal , vol. 42, 449-455.
6、Frogel, J. A., & Stothers, R.,(1977), The local complex of O and B stars. II – kinematics, Astronomical Journal, vol. 82, 890-901.
7、Guillout, P., Sterzik, M. F., Schmitt, J. H. M. M., Motch, C. & Neuhaeuser, R.,(1998), Discovery of a late-type stellar population associated with the Gould Belt, Astronomy & Astrophysics Journal , vol. 337, 113-124.
8、Lesh, J. R.,(1968), The kinematics of the Gould Belt: an expanding group? Astrophysical Journal Supplement, vol.17, 371-442.
9、Lesh, J. R.,(1972), New kinematical data for bright southern OB-stars, Astronomy & Astrophysics Journal Supplement, vol. 5, 129-165.
10、Lindblad, P. O., Grape, K., Sandqvist, Aa., & Schober, J.,(1973), On the kinematics of a local component of the interstellar hydrogen gas possibly related to Gould’s Belt, Astronomy & Astrophysics Journal , vol. 24, 309-312.
11、Mihalas, D. & Binney, J., 1981, Galactic Astronomy-Structure and Kinematics 2nd ed., Freeman, San Francisco.
12、Moreno, E., Emilio, J.A. & Jose, F.,(1999), The kinematics of stars emerging from expanding shells: an analysis of the Gould Belt, The Astrophysical Journal, vol. 522, 276-284.
13、Olano, C. A.,(1982), On a model of local gas related to Gould's Belt, Astronomy & Astrophysics Journal, vol. 112, 195-208.
14、Poeppel, W. G., Olano, C. A.& Cappa de Nicolau, C. E.,(1981), Neutral hydrogen related to Gould's Belt, Revista Mexicana de Astronomia y Astrofisica, vol. 6, 259-266.
15、Poppel, W. G. L.& Vieira, E. R.,(1985), A southern atlas of galactic hydrogen, Revista Mexicana de Astronomia y Astrofisica, vol. 11, 3-5.
16、Stothers, R & Frogel, J. A. ,(1974), The local complex of O and B stars. I . Distribution of stars and interstellar dust, Astronomical Journal, vol. 79, 456-471.
17、Tsioumis, A.& Fricke, W., (1979), A contribution to the kinematics of the Gould Belt, Astronomy & Astrophysics Journal, vol. 75, 1-6.
18、Taylor,K., Dickman, R. L. & Scoville, N. Z.,(1987), Molecular clouds and the Gould belt, The Astrophysical Journal, vol.315, 104-121.
19、Westin,T.N.G.,(1985), The local system of early type stars - spatial extent and kinematics, Astronomy & Astrophysics Journal Supplement, vol. 60, 99-134.
20、de Zeeuw, P. T., Hoogerwerf, R., de Bruijne, J. H. J., Brown, A. G. A.& Blaauw, A.,(1999), A Hipparcos census of the nearby OB associations, Astronomical Journal, Vol. 117, 354-399.