Age as the second parameter in NGC 288/NGC 362? I. Turnoff ages: A purely differential comparison

Astronomical Journal

Volumn 122, Issue 5, 2001, Pages 2569-2586

  Bellazzini, Michele ^a   Pecci, Flavio Fusi ^a,d   Ferraro, Francesco R ^a   Galleti, Silvia ^a   Catelan, Márcio ^b   Landsman, Wayne B ^c  

^a INAF OSSERVATORIO ASTRONOMICO DI BOLOGNA   (Italy)

^b UNIVERSITY OF VIRGINIA   (United States)

^c NASA GODDARD SPACE FLIGHT CENTER   (United States)

^d Stazione Astronomica di Cagliari   (Italy)

Author keywords

Color magnitude diagrams; Globular clusters: general; Globular clusters: individual (NGC 288, NGC 362, NGC 1851); Stars: horizontal branch; Stars: Population II

Indexed keywords

EID: 0000708654     PISSN: 00046256     EISSN: None     Source Type: Journal    
DOI: 10.1086/323711     Document Type: Article

References (102)

1. Alcaino, G., Liller, W., Alvarado, F., & Wenderoth, E. 1990, AJ, 99, 817
2. Bailyn, C. D. 1995, ARA&A, 33, 133
3. Behr, B. B., Djorgovski, S. G., Cohen, J. G., McCarthy, J. K., Coté, P., Piotto, G., & Zoccali, M. 2000, ApJ, 528, 849
4. Bellazzini, M., & Messineo, M. 1999, in The Chemical Evolution of the Milky Way: Stars versus Clusters, ed. F. Matteucci & F. Giovannelli (Dordrecht: Kluwer), 213
5. Bergbusch, P. A. 1993, AJ, 106, 1024
6. Bergbusch, P. A., & VandenBerg, D. A. 2001, ApJ, 556, 322
7. Bolte, M. 1987, ApJ, 315, 469
8. _. 1989, AJ, 97, 1688
9. _. 1992, ApJS, 82, 145
10. Bono, G., Cassisi, S., Zoccali, M., & Piotto, G. 2001, ApJ, 546, L109
11. Borissova, J., Catelan, M., & Valchev, T. 2001, MNRAS, 324, 77
12. Buonanno, R., Corsi, C. E., Bellazzini, M., Ferraro, F. R., & Fusi Pecci, F. 1997, AJ, 113, 706
13. Buonanno, R., Corsi, C. E., Pulone, L., Fusi Pecci, F., & Bellazzini, M. 1998a, A&A, 333, 505
14. Buonanno, R., Corsi, C. E., Zinn, R., Fusi Pecci, F., Hardy, E., & Suntzeff, N. B. 1998b, ApJ, 501, L33
15. Buzzoni, A., Fusi Pecci, F., Buonanno, R., & Corsi, C. E. 1983, A&A, 128, 94
16. Carney, B. W. 1996, PASP, 108, 900
17. Carretta, E., & Gratton, R. 1997, A&AS, 121, 95
18. Cassisi, S., Castellani, V., Degl'Innocenti, S., & Weiss, A. 1998, A&AS, 129, 267 (CCDW98)
19. Catelan, M. 1997, ApJ, 478, L99
20. _. 1998, ApJ, 495, L81
21. _. 2000, ApJ, 531, 826
22. Catelan, M., Bellazzini, M., Landsman, W.B., Ferraro, F. R., Fusi Pecci, F., & Galleti, S. 2001, AJ, submitted (Paper II)
23. Catelan, M., & de Freitas Pacheco, J. A. 1993, AJ, 106, 1858
24. Catelan, M., de Freitas Pacheco, J. A., & Horvath, J. E. 1996, ApJ, 461, 231
25. Catelan, M., Ferraro, F. R., & Rood, R. T. 2001, ApJ, in press (astro-ph/0106554)
26. Catelan, M., et al. 2001, in preparation
27. Catelan, M., Sweigart, A. V., & Borissova, J. 1998, in ASP Conf. Ser. 135, A Half-Century of Stellar Pulsation Interpretations, ed. P. A. Bradley & J. A. Guzik (San Francisco: ASP), 41
28. Cavallo, R. M., & Nagar, N. M. 2000, AJ, 120, 1364
29. Clement, C. 1997, AAS Newsl., 84, 15
30. Croke, B. F. W. 1993, Ph.D. thesis, Univ. New South Wales
31. Da Costa, G. S., & Armandroff, T. E. 1990, AJ, 100, 162
32. D'Antona, F. 2000, in The Galactic Halo: From Globular Clusters to Field Stars, ed. A. Noels, P. Magain, D. Caro, E. Jehin, G. Parmentier, & A. Thoul (Liège: Univ. Liège), 433
33. Dickens, R. J., Croke, B. F. W., Cannon, R. D., & Bell, R. A. 1991, Nature, 351, 212
34. Dickens, R. J., & Woolley, R. v. d. R. 1967, R. Obs. Bull., 128, 255
35. Ferraro, F. R., Messineo, M., Fusi Pecci, F., De Palo, A., Straniero, O., Chieffi, A., & Limongi, M. 1999, AJ, 118, 1738
36. Fusi Pecci, F., & Bellazzini, M. 1997, in The Third Conference on Faint Blue Stars, ed. A. G. D. Philip, J. Liebert, R. Saffer, & D. S. Hayes (Schenectady: L. Davis), 255
37. Fusi Pecci, F., Ferraro, F. R., Bellazzini, M., Djorgovski, S. G., Piotto, G., & Buonanno, R. 1993, AJ, 105, 1145
38. Fusi Pecci, F., & Renzini, A. 1978, in IAU Symp. 80, The HR Diagram: The 100th anniversary of Henry Norris Russell, ed. A. G. Davis Philip & D. S. Hayes (Boston: Reidel), 225
39. Gratton, R. 1987, A&A, 179, 181
40. Gratton, R., Sneden, C., Carretta, E., & Bragaglia, A. 2000, A&A, 354, 169
41. Gratton, R. G., et al. 2001, A&A, 369, 87
42. Green, E. M., Liebert, J., & Saffer, R. A. 2001, in Twelfth European Workshop on White Dwarfs (San Francisco: ASP), in press (astro-ph/ 0012246)
43. Green, E. M., & Norris, J. E. 1990, ApJ, 353, L17
44. Grundahl, F. 1999, in ASP Conf. Ser. 192, Spectrophotometric Dating of Stars and Galaxies, ed. I. Hubeny, S. Heap, & R. Cornett (San Francisco: ASP), 223
45. Grundahl, F., Catelan, M., Landsman, W. B., Stetson, P. B., & Andersen, M. I.1999, ApJ, 524, 242
46. Guo, X. 1995, Ph.D. thesis, Yale Univ.
47. Harris, W. E. 1982, ApJS, 50, 573
48. Harris, W. E., Bell, R. A., VandenBerg, D. A., Bolte, M., Stetson, P. B., Hesser, J. E., van den Bergh, S., Bond, H. E., Fahlman, G. G., & Richer, H. D. 1997, AJ, 114, 1030
49. Iben, I. 1968, Nature, 220, 143
50. Jurcsik, J. 1995, Acta Astron., 45, 653
51. Kaluzny, J. 1996, A&AS, 120, 83
52. Kaluzny, J., Krzemiński, W., & Nalezyty, M. 1997, A&AS, 125, 337
53. Landolt, A. U. 1992, AJ, 104, 340
54. Layden, A. C., Ritter, L. A., Welch, D. L., & Webb, T. M. A. 1999, AJ, 117, 1313
55. Lee, Y.-W., Demarque, P., & Zinn, R. 1988, in Calibration of Stellar Ages, ed. A. G. D. Philip (Schenectady: L. Davis), 149
56. _. 1994, ApJ, 423, 248
57. Lee, Y.-W., Joo, J.-M., Sohn, Y.-J., Rey, S.-C., Lee, H.-C., & Walker, A. R. 1999b, Nature, 402, 55
58. Lee, K.-W., Lee, S.-W., & Sung, H. 1998, J. Korean Astron. Soc., 31, 19
59. Lee, Y.-W., Yoon, S.-J., Lee, H.-C., & Woo, J.-H. 1999a, in ASP Conf. Ser. 192, Spectrophotometric Dating of Stars and Galaxies, ed. I. Hubeny, S. Heap, & R. Cornett (San Francisco: ASP), 185
60. Maxted, P. F. L., Heber, U., Marsh, T. R., & North, R. C. 2001, MNRAS, 326, 1391
61. McWilliam, A. 1997, ARA&A, 35, 503
62. Messineo, M. 1996, Thesis degree, Bologna Univ.
63. Moehler, S., Landsman, W. B., & Donnan, B. 2000, A&A, 361, 937
64. Pancino, E., Ferraro, F. R., Bellazzini, M., Piotto, G., & Zoccali, M. 2000, ApJ, 534, L83
65. Parise, R.A., et al. 1994, ApJ, 423, 305
66. Peterson, R. C. 1985, ApJ, 294, L35
67. Pilachowski, C. A., & Sneden, C. 1983, PASP, 95, 229
68. Pound, M. W., Janes, K. A., & Heasley, J. N. 1987, AJ, 94, 1185
69. Pritzl, B., Smith, H. A., Catelan, M., & Sweigart, A. V. 2000, ApJ, 530, L41
70. Renzini, A., & Fusi Pecci, F. 1988, ARA&A, 26, 199
71. Rodgers, A. W., & Harding, P. 1987, PASP, 99, 961
72. Rosenberg, A., Piotto, G., Saviane, I., & Aparicio, A. 2000, A&AS, 144, 5
73. Rosenberg, A., Saviane, I., Piotto, G., & Aparicio, A. 1999, AJ, 118, 2306
74. Rutledge, G. A., Hesser, J. E., & Stetson, P. B. 1997, PASP, 109, 907
75. Saffer, R. A., Green, E. M., & Bowers, T. P. 2001, in Twelfth European Workshop on White Dwarfs (San Francisco: ASP), in press (astro-ph/ 0012244)
76. Salaris, M., Chieffi, A., & Straniero, O. 1993, ApJ, 414, 580
77. Sandage, A. 1990, ApJ, 350, 631
78. Sandquist, E. L. 2000, MNRAS, 313, 571
79. Sarajedini, A., & Demarque, P. 1990, ApJ, 365, 219
80. Saviane, I., Piotto, G., Fagotto, F., Zaggia, S., Capaccioli, M., & Aparicio, A. 1998, A&A, 333, 479
81. Sawyer-Hogg, H. 1973, Publ. David Dunlap. Obs., 3, No. 6
82. Schechter, P., Mateo, M., & Saba, A. 1993, PASP, 105, 1342
83. Schlegel, D. J., Finkbeiner, D. P., & Davis, M. 1998, ApJ, 500, 525
84. Searle, L., & Zinn, R. 1978, ApJ, 225, 357
85. Shetrone, M. D., & Keane, M. J. 2000, AJ, 119, 840
86. Stetson, P., VandenBerg, D. A., & Bolte, M. 1996, PASP, 108, 560 (SVB96)
87. Straniero, O., Chieffi, A., & Limongi, M. 1997, ApJ, 490, 425 (SCL97)
88. Sweigart, A. V. 1997, ApJ, 474, L23
89. Tucholke, H.-J. 1992, A&AS, 93, 311
90. van den Bergh, S. 1996, ApJ, 471, L31
91. VandenBerg, D. A. 2000, ApJS, 129, 315 (V2000)
92. VandenBerg, D. A., Bolte, M., & Stetson, P. 1990, AJ, 100, 445
93. _. 1996, ARA&A, 34, 461
94. VandenBerg, D. A., Swenson, F. J., Rogers, F. J., Iglesias, C. A., & Alexander, D. R. 2000, ApJ, 532, 430
95. Walker, A. R. 1992, PASP, 104, 1063
96. _. 1998, AJ, 116, 220
97. Weiss, A., Denissenkov, P. A., & Charbonnel, C. 2000, A&A, 356, 181
98. Yoon, S.-J., Lee, C.-H., & Lee, Y.-W. 2000, BAAS, 196, No. 41.02
99. Zinn, R. 1980, ApJS, 42, 19
100. _. 1985, ApJ, 293, 424
101. Zinn, R., & West, M. J. 1984, ApJS, 55, 45
102. Zoccali, M., Cassisi, S., Bono, G., Piotto, G., Rich, R. M., & Djorgovski, S. G. 2000, ApJ, 538, 289