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研究生: 謝翔宇
Hsiang-Yu Hsieh
論文名稱: 由恆星自行運動辨別疏散星團NGC 7142及M45之成員星
The Membership Determination of Open Clusters NGC 7142 and M45 from Proper Motion Data
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: 2013
畢業學年度: 101
語文別: 英文
論文頁數: 168
中文關鍵詞: 疏散星團成員星恆星自行星等星色圖雙色圖NGC 7142M45
英文關鍵詞: open cluster, membership probability, proper motion, Color-Magnitude Diagram, Two-Color Diagram, NGC 7142, M45
論文種類: 學術論文
相關次數: 點閱:169下載:8
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  • 使用Johnson UBV光度資訊推算疏散星團的距離和年齡,首要工作是能夠分辦出星團的成員星。 本研究使用雙變數常態分布之數學模式分析恆星自行運動,計算出每顆恆星為星團成員的或然率。
    本研究使用2003年8月7日和2012年7月8日在中央大學鹿林前山天文台的一米望遠鏡觀測之疏散星團NGC 7142之影像,得出其中1697顆恆星的UBV光度及自行運動資訊。而本研究同時也選擇擇了M45(昴宿星團)作為距離、星際紅化消光已知之對照星團,採用Tycho-2星表記載之亮度及自行資訊。
    在分析恆星自行運動後得到每顆恆星為成員星之或然率,將或然率較高之恆星挑選出來繪製星等-星色圖和雙色圖。 由星團之雙色圖擬合,以及文獻之UBV紅化斜率0.72,得到NGC 7142的金屬豐度[Fe/H] = -0.37以及紅化係數E(B-V) = 0.36。而星等-星色圖由主序帶擬合之結果可得出距離模數(m-M)0 = 11.02,等同於1600pc。而年齡由星等-星色圖之等時線擬合而得出,約為79億年。
    在M45之星等-星色圖代入文獻值E(B-V) = 0.04、[Fe/H] = 0.022以及(m-M)0 = 5.66後,由等時線擬合得到年齡1.26億年。 本研究比較M45和NGC 7142之主序帶星等,代入M45之文獻值136pc,得到NGC 7142之距離為1920pc。

    For accurately estimating the distance and age of an open cluster with Johnson UBV photometry, the membership of the cluster should be determine first. The probability of membership for each star in the two open clusters: NGC 7142 and M45 are determined in terms of the normal bivariate frequency function with proper motion data. The database of proper motion and UBV photometry calculated from the images for NGC 7142 observed in this work, and proper motion database of M45 taken from the Tycho-2 catalog.
    The observations of NGC 7142 carried out with the Lulin-One meter Telescope of National Central University on August 7, 2003 and July 8, 2012, respectively. A catalog contained 1697 stars with UBV photometry, proper motion and membership probability data is set up. From the main-sequence fitting on the Two-Color Diagram with the UBV reddening slope 0.72, the estimate value of the metallicity Z is 0.008, represents [Fe/H] = -0.37, and the E(B – V) = 0.36. The distance modulus is (m-M)0 = 11.02, represents distance is about 1600pc. From the isochrones fitting, the age of NGC 7142 is 7.9 Gyr.
    The M45 been chosen for comparison with almost no extinction and distance well known. With the E(B-V) = 0.04, (m-M)0 = 5.66 and [Fe/H] = 0.022, the isochrones fitting of age is 126 Myr. From the main-sequence comparison with the distance of M45 (136 pc), the distance of NGC 7142 is 1920 pc.

    1 Introduction ------ 01 1-1 Membership of open cluster ------ 01 1-2 NGC 7142 properties ------ 02 1-3 M45 properties ------ 06 2 Observation and Data ------ 09 2-1 LOT observations for NGC 7142 ------ 09 2-2 Tycho-2 catalog for M45 ------ 17 3 Data Reduction for NGC 7142 ------ 20 3-1 Magnitude calibration ------ 20 3-2 Coordinate calibration and proper motion determine ------ 35 4 Membership determination ------ 40 4-1 Data selection ------ 40 4-2 Data process ------ 43 4-3 Membership probability ------ 45 5 Results and Discussion ------ 54 5-1 Color-Magnitude Diagram ------ 54 5-2 Two-Color Diagram ------ 57 5-3 Reddening and extinction ------ 59 5-4 Age and distance ------ 63 6 Conclusions ------ 69 Acknowledgement ------ 70 References ------ 71 Appendixes A M45 membership with PPMXL catalog I B IRAF magnitude measure information XI C IDL source code Program 1: Proper motion determine XIV Program 2: Membership determine XVIII D NGC 7142 catalog with membership Images XXVIII Text XXXVIII E M45 images and catalog with membership Images LXVIII Text LXXIII F DVD disk (with images, programs and data) LXXX

    Adams, J. D., Stauffer, J. R., Monet, D. G., Skrutskie, M. F., & Beichman, C. A. 2001, AJ, 121,2053
    An, D., Terndrup, D. M., Pinsonneault, M. H., Paulson, D. B., Hanson, R. B., & Stauffer J. R. 2007, ApJ, 655, 233
    Balaguer-Nunez, L., Tian, K. P., & Zhao, J. L. 1998, A&AS, 133, 387
    Becker, W., & Fenkart, R. 1971, A&AS, 4, 241
    Bellini, A., Piotto, G., Bedin, L. R., Anderson, J., Platais, I., Momany, Y., Moretti, A., Milone, A. P., & Ortolani, S. 2009, A&A, 493, 959
    Boesgaard, A, M., & Friel, E. D. 1990, ApJ, 351, 467
    Briceno, C., Luhman, K. L., Hartmann, L., Stauffer, J. R., & Kirkpatrich, J. D. 2002, AJ, 580, 317
    Bruzual, G., & Charlot, S. 2003, MNRAS, 344,1000
    Canterna, R., Geisler, D., Harris, H. C., Olszewski, E., & Schommer, R. 1986, AJ. 92, 79
    Casewell, S. L., Jameson, R. F., & Dobbie, P. D. 2006, MNRAS, 365, 447
    Castellani, V., Chieffi, A., & Straniero, O. 1992, ApJS, 78,517
    Crawford, D. L., & Mandwewala, N. 1976, PASP, 88, 917
    Dias, W. S., Alessi, B. S., Moitinho, A., & Lepine, J. R. D. 2002, A&A, 389, 871
    Deutschman, W. A., Davis, R. J., & Schild, R. E. 1976, ApJS, 30, 97
    Dzyurkevich, N., Roeser, S., Demleitner, M., & Schilbach, E. 2010, AJ, 139, 2440
    Friel, E. D., Liu, T. X., & Janes, K. A. 1989, PASP, 101, 11
    Friel, E. D., & Janes, K. A. 1993, A&A, 267, 75
    Friel, E. D., Janes, K. A., Tavarez, M., Scott, J., Katsanis, R., Lotz, J., Hong, L., & Miller, N. 2002, AJ, 124, 2693
    Gatewood, G., de Jonge, J. K., and Han, I. 2000, ApJ, 533, 938
    Groenewegen, M. A. T., Decin, L., Salaris, M., & De Cat, P. 2007, A&A, 463, 559
    Gebran, M., & Monier, R. 2008, A&A, 479, 189
    Henning, T. 2010, ApJL, 716, L90
    Jacobson, H. R., Friel, E. D., & Pilachowski, C. A. 2007, AJ, 134, 1216
    Jacobson, H. R., Friel, E. D., & Pilachowski, C. A. 2008, AJ, 135, 2341
    Janes, K. A., & Hoq, S. 2011, AJ, 141, 92
    Jennens, P. A., & Helfer, H. L. 1975, MNRAS, 172, 681
    Johns-Krull, C. M., & Anderson, J. 2005, ESASP, 560, 683
    Johnson, H. L., Hoag, A. A., Iriarte, B., Mitchell, R. I., & Hallam, K. L. 1961, LowOB, 5, 133
    Johnson, H. L., & Mitchell, R. I. 1958, ApJ, 128, 31
    Johnson, H.L., & Morgan, W. W. 1953, ApJ, 117, 313
    Jones, B. F., 1981, AJ, 86, 290
    Jones, B. F., & Walker, M. F. 1988, AJ, 95, 1755
    Kharchenko, N. V., Piskunov, A. E., Roser S., Schilbach, E., & Scholz, R. D. 2005, A&A, 438, 1163
    Kharchenko, N. V., Piskunov, A. E., Roser, S., Schilbach, E., & Scholz, D.D. 2005, A&A, 440, 403
    King, J. R., Krishnamurthi, A., & Pinsonneault, M. R. 2000, AJ, 119, 859
    Lada, C. J., Margulis, M., & Dearbon, D. 1984, AJ, 285, 141
    Makarov, V. V. 2002, AJ, 124, 3299
    Marschall, L. A., & van Altena, W.F. 1987, AJ, 94, 71
    Mazzei, P., & Pigatto, L. 1989, A&A, 213, L1
    McNamara, B.J., Hack, W.J., Olson, R.W., & Mathieu, R.D. 1989, AJ, 97, 1427
    Mermilliod, J. C. 1981, A&A, 97, 235
    Meynet, G., Mermilliod, J. C., & Maeder, A. 1993, A&AS, 98, 477
    Mitchell, R. I., & Johnson, H. L. 1957, ApJ, 125, 414
    Montgomery, K. A., Marschall, L. A., & Janes, K. A. 1993, AJ, 106,181
    Munari, U., Dallaporta, S., Siviero, A., Soubiran, C., Fiorucci, M., & Girard, P. 2004, A&A, 418, 31
    Narayanan, V. K., & Gould, A. 1999, ApJ, 523, 328
    Pan, X., Shao, M., & Kulkarni, S. R. 2004, Nature, 427, 326
    Paunzen, E., & Netopil, M. 2006, MNRAS, 371, 164
    Percival, S. M., Salaris, M., & Groenewegen, M. A. T. 2005, A&A, 429, 887
    Pinsonneault, M. H., Stauffer, J., Soderblom, D. R., King, J. R., & Hanson, R. B. 1998, AJ, 504,170
    Punanova, A. F., Loktin, A. V., Krushinsky, V. V., & Popov, A. A. 2012, AASP, 2, 11
    Racine, R. 1973, AJ, 78, 180
    Risley, A. M. 1943, ApJ, 97, 277
    Roser, S., & Schilbach, E. 2012, IAUS, 289, 66
    Sagar, R. 1987, BASI, 15,193
    Salaris, M., Weiss, A., & Percival, S. M. 2004, A&A, 414, 163
    Sandage, A. 1970, ApJ, 162, 841
    Sanders, W. L. 1971, A&A, 14, 226
    Sandquist, E. L., Serio, A. W., & Shetrone, M. 2011, AJ, 142, 194
    Sariya, D. P., Yadav, R. K. S., & Bellini, A. 2012, A&A, 543
    Shapley, H. 1920, ApJ, 51, 49
    Sharov, A. S. 1965, SvA, 8, 680
    Sharov, A. S. 1968, SvA, 12, 550
    Soderblom, D. R., Jones, B. F., Ralachandran, S., Stauffer, J. R., Duncan, D. K., Fedele, S. B., & Hudon, J. D. 1993, AJ, 106, 1059
    Soderblom, D. R., Nelan, E., Benedict, G. F., McArthur, B., Ramirez, I., & Spiesman, W. 2005, AJ, 129, 1616
    Soderblom, D. R., Laskar, T., Valenti, J. A., Stauffer, J. R., & Rebull, L. M. 2009, AJ, 138, 5
    Southworth, J., Maxted, P. F. L., & Smalley, B. 2005, A&A, 429, 645
    Stauffer, J. R., Caillault, J. P., Gagne, M., Prosser, C. F., & Hartmann, L. W. 1994, AJS, 91,625
    Stauffer, J. R., Schultz, G., & Kirkpatrich J. D. 1998, ApJ, 499, 199
    Stetson, P. B. 1980, AJ, 85, 387
    Straizys, V., Sudzius, J., & Kuriliene, G. 1976, A&A, 50,413
    Talbert, F. D., & Crinklaw, G. 1991, PASP, 103, 536
    Terrell, D. 2005, SASS, 24,21
    Tian, K. P., Zhao, J. L., Sho, ZH. Y., & Stetson, P. B. 1998,A&AS, 131, 89
    Vasilevskis, S., Klemola,A., & Preston,G. 1958, AJ, 63, 387
    Vasilevskis, S., & Rach, Robert, A. 1957, AJ, 62, 175
    Vasilevskis, S., Sanders,W.L., & van Altena, W.F. 1965, A J, 70, 806
    van den Bergh, S. 1962, JRASC, 56, 41
    van den Bergh, S., & Heeringa, R. 1970, A&A, 9, 209
    van Leeuwen, F. 2009, A&A, 497, 209
    van Leeuwen, F., & Ruiz, C. S. H. 1997, ESASP, 402, 689
    Ventura, P., Zeppieri, A., Mazzitelli, I., & D’Antona, F. 1998, A&A, 334, 953
    Zhao, J. L., & Chen, L. 1994, A&A, 287, 68
    Zhao, J. L., & He, Y. P. 1990, A&A, 237, 54
    Zwahlen, N., North, P., Debernardi, Y., Eyer, L., Galland, F., Groenewegen, M. A. T., & Hummel, C. A. 2004, A&A, L45

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