博碩士論文 101229002 詳細資訊




以作者查詢圖書館館藏 以作者查詢臺灣博碩士 以作者查詢全國書目 勘誤回報 、線上人數:12 、訪客IP:3.238.184.78
姓名 沈沛旻(Pei-Min Shen)  查詢紙本館藏   畢業系所 天文研究所
論文名稱
(Measuring the Rotational Speeds of Classical Be Stars with IR Excess)
相關論文
★ 金牛座分子雲外圍之年輕恆星★ 濃密分子雲核中的紅外源
★ 球狀星團NGC288的運動狀態★ 利用2微米巡天觀測(2MASS)資料庫分析疏散星團之空間結構
★ 中美掩星計畫的光度資料分析★ 薔薇星雲中的X射線源
★ 銀河系球狀星團 M13 之中頻寬 CCD 光度測量及其恆星組成★ 毫米與次毫米波段的大質量恆星形成
★ 中美掩星計劃的掩星偵測和星場選擇★ 晚期恆星之環星物質的結構研究
★ 豺狼三分子雲中的年輕星球★ 塵粒成長對原行星盤能譜分佈演化之作用
★ Identification of Herbig Ae/Be Starsin Open Clusters★ OB星協裡的中低質量星球的形成
★ 船底座星雲之多波段研究★ 從中美掩星計畫資料裡計算古伯帶遮掩背景星的機率以及尋找變星
檔案 [Endnote RIS 格式]    [Bibtex 格式]    [相關文章]   [文章引用]   [完整記錄]   [館藏目錄]   [檢視]  [下載]
  1. 本電子論文使用權限為同意立即開放。
  2. 已達開放權限電子全文僅授權使用者為學術研究之目的,進行個人非營利性質之檢索、閱讀、列印。
  3. 請遵守中華民國著作權法之相關規定,切勿任意重製、散佈、改作、轉貼、播送,以免觸法。

摘要(中) Classical Be stars為B型恆星且擁有紅外超量和光譜上存在著發射線的特性。這些恆星與主序前Herbig Ae/Be stars 不同,他們為轉速相當快的恆星且可能有些恆星轉速接近break-up。在星球附近有氣態環星盤,而這個環星盤可以解釋許多觀測的特性,包含了在被拋出物質所形成的envelope中的塵埃凝聚。我們利用NARIT所屬的泰國望遠鏡(TNT)取得echelle spectra,來算HD50138 (90.9±5.0 km/s),HD 45677 (84.3±5.6 km/s) ,和HD 62532 (293.6±9.5 km/s)三顆Classical Be stars的轉速(vsini)。我們也估計了儀器所造成的譜寬,但是這些星球旋轉相當的快,所以我們預期儀器所造成的譜寬效應相對很小。 在本篇論文我們討論星球轉速與Be phenomena之間有無任何關係。
摘要(英) Classical Be stars are B-type stars with the characteristic emission spectra and infrared excess. These stars are distinct from the pre-main sequence Herbig Ae/Be stars and are known to be rapid rotators, some perhaps close to break-up. They are surrounded by gaseous disks, which are responsible for many of the observed properties, including plausibly the dust condensation in the ejected cooling envelopes. We present the echelle spectra taken by Tai National Telescope(TNT) of NARIT to derive the projected rotational speed (vsini) of three classical Be stars, HD50138 (90.9±5.0 km/s), HD 45677 (84.3±5.6 km/s), and HD 62532 (293.6±9.5 km/s). We are in the process of estimating the instrumental broadening, but these stars rotate very fast, so we expect the effect to be relatively small. We discuss how fast rotation may have played a role in the Be phenomena.
關鍵字(中) ★ 星球
★ 星球轉速
★ 恆星演化
★ 光譜
★ 紅外超量
關鍵字(英) ★ rotational velocity
★ classical Be star
★ echelle spectra
★ IR excess
★ stellar evolution
論文目次 Contents
1. Introduction 1
1.1 Classification of Be Stars 2
1.2 Stellar Rotation 3
1.3 IR Excess v.s. Stellar Rotation 4

2. Observations and Data Reduction 5
2.2 Echelle Spectrograph & Observations 5
2.2 Data Reduction 6
2.3 Estimating the Stellar Rotation & Results 6
3. Discussion 12

3.1 Previous Studies of our Targets 12
3.1.1 HD 50138 12
3.1.2 HD 45677 13
3.1.3 HD 62532 14
3.2 Stellar Rotation & Color Excess 14
4. Conclusion 19
Bibliography 20
Appendix A 22
Appendix B 42


參考文獻 Bibliography

Abney, W. D. W. 1877, MNRAS, 37, 278
Allen, D. A., & Swings, J. P. 1976, A&A, 47, 293
Baines, D., Oudmaijer, R. D., Porter, J. M., & Pozzo, M. 2006, MNRAS, 367, 737
Borges Fernandes, M., Kraus, M., Chesneau, O., et al. 2009, A&A, 508, 309
Borges Fernandes, M., Kraus, M., Nickeler, D. H., et al. 2012, A&A, 548, A13
Borges Fernandes, M., Meilland, A., Bendjoya, P., et al. 2011, A&A, 528, A20
Carroll, J. A. 1933, MNRAS, 93, 478, 508, 680
Chen, H., Ringuelet, A., Sahade, J., & Kondo, Y. 1989, ApJ, 347, 1082
Cidale, L., Zorec, J., & Tringaniello, L. 2001, A&A, 368, 160
Corporon, P., & Lagrange, A.-M. 1999, A&AS, 136, 429
de Winter, D., & van den Ancker, M. E. 1997, A&AS, 121, 275
Fremat, Y., Neiner, C., Hubert, A.-M., et al. 2006, A&A, 451, 1053
Gehrz, R.D., Hackwell, J. A., & Jones, T. W. 1974, ApJ, 191, 675
Gray, D. F. 1973, ApJ, 184, 461
Herbig, G. H. 1960, ApJS, 4, 337
Houziaux, L. 1960, Publications of the Observatoire Haute-Provence, 5, 28
Huang, S.-S. 1965, ApJ, 141, 985
Huang, S.-S., & Struve, O. 1953, ApJ, 118, 463
Humason, M. L., & Merrill, P. W. 1921, PASP, 33, 112
Hutchings, J. B. 1970, IAU Colloq. 4: Stellar Rotation, 283
Israelian, G., Friedjung, M., Graham, J., et al. 1996, A&A, 311, 643
Jaschek, M., & Egret, D. 1982, Be Stars, 98, 261
Jaschek, M., Jaschek, C., & Andrillat, Y. 1993, A&AS, 97, 781
Lamers, H. J. G. L. M., Zickgraf, F.-J., de Winter, D., Houziaux, L., & Zorec, J. 1998, A&A, 340, 117
Kogure, T., & Hirata, R. 1982, Bulletin of the Astronomical Society of India, 10, 281
Kraft, R. P. 1967, ApJ, 150, 551
____.1970, in Spectroscopic Astrophysics, ed. G. H. Herbig (Berkeley: University of California Press), p.385
Lee, C. D., & Chen, W. P. 2009, The Eighth Pacific Rim Conference on Stellar Astrophysics: A Tribute to Kam-Ching Leung, 404, 302
Low, F. J., Johnson, H. L., Kleinmann, D. E., Latham, A. S., & Geisel, S. L. 1970, ApJ, 160, 531
Miroshnichenko, A. S. 2007, ApJ, 667, 497
Pogodin, M. A. 1997, A&A, 317, 185
Porter, J. M., & Rivinius, T. 2003, PASP, 115, 1153
Rieke, G. H., & Lebofsky, M. J. 1985, ApJ, 288, 618
Schatzman, E. 1962, Annales d′Astrophysique, 25, 18
Shajn, G., & Struve, O. 1929, MNRAS, 89, 222
Sheikina, T. A., Miroshnichenko, A. S., & Corporon, P. 2000, IAU Colloq. 175: The Be Phenomenon in Early-Type Stars, 214, 494
Slettebak, A. 1976, Be and Shell Stars, IAU sym. 70, 123
Slettebak, A. 1988, PASP, 100, 770
Stauffer, J. B., & Hartmann, L. W. 1986, PASP, 98, 1233
Strom, S. E., Strom, K. M., Yost, J., Carrasco, L., & Grasdalen, G. 1972, ApJ, 173, 353
Struve, O. 1931, ApJ, 73, 94
Swings, J. P. 1973, A&A, 26, 443
Swings, J. P. 1976, Be and Shell Stars, IAU symp. 70, 219
Swings, J.P., & Allen, D. A. 1971, ApJ, 167, L41
Townsend, R. H. D., Owocki, S. P., & Howarth, I. D. 2004, MNRAS, 350, 189
Yudin, R. V. 2001, A&A, 368, 912
Zhang, P., Chen, P. S., & Yang, H. T. 2005, NA, 10, 325
指導教授 陳文屏(Wen-Ping Chen) 審核日期 2014-7-25
推文 facebook   plurk   twitter   funp   google   live   udn   HD   myshare   reddit   netvibes   friend   youpush   delicious   baidu   
網路書籤 Google bookmarks   del.icio.us   hemidemi   myshare   

若有論文相關問題,請聯絡國立中央大學圖書館推廣服務組 TEL:(03)422-7151轉57407,或E-mail聯絡  - 隱私權政策聲明