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Homogeneous Photometry. V. The Globular Cluster NGC 4147

Peter B. Stetson, M. Catelan and Horace A. Smith
Publications of the Astronomical Society of the Pacific
Vol. 117, No. 838 (December 2005), pp. 1325-1361
DOI: 10.1086/497302
Stable URL: http://www.jstor.org/stable/10.1086/497302
Page Count: 37
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Homogeneous Photometry. V. The Globular Cluster NGC 4147
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Abstract

ABSTRACT New BVRI broadband photometry and astrometry are presented for the globular cluster NGC 4147, based upon measurements derived from 524 ground‐based CCD images mostly either donated by colleagues or retrieved from public archives. We have also reanalyzed five exposures of the cluster obtained with WFPC2 on the Hubble Space Telescope in the F439W and F555W (B and V) filters. We present calibrated color‐magnitude and color‐color diagrams. Analysis of the color‐magnitude diagram reveals morphological properties generally consistent with published metal‐abundance estimates for the cluster, and an age typical of other Galactic globular clusters of similar metallicity. We have also redetermined the periods and mean magnitudes for the RR Lyrae variables, including a new c‐type variable reported here for the first time. Our data do not show clear evidence for photometric variability in candidate V18, recently reported by Arellano Ferro et al. (2004, Rev. Mex. A&A, 40, 209). These observations also support the nonvariable status of candidates V5, V9, and V15. The union of our light‐curve data with those of Newburn (1957, AJ, 62, 197), Mannino (1957, Mem. Soc. Astron. Italiana, 28, 285), and Arellano Ferro et al. (op. cit.) permits the derivation of significantly improved periods. The mean periods and the Bailey period‐amplitude diagrams support the classification of the cluster as Oosterhoff I, despite its predominantly blue horizontal branch. The number ratio of c‐ to ab‐type RR Lyrae stars, on the other hand, is unusually high for an Oosterhoff I cluster. The calibrated results have been made available through the first author’s Web site.

Notes and References

This item contains 90 references.

REFERENCES
  • ['Alcaino, G. 1975, A&AS, 22, 193']
  • ['Alcock, C., et al. 1996, AJ, 111, 1146']
  • ['Arellano Ferro, A., Arévalo, M. J., Lázaro, C., Rey, M., Bramich, D. M., & Giridhar, S. 2004, Rev. Mex. A&A, 40, 209 (AF04)']
  • ['Aurière, M., & Lauzeral, C. 1991, A&A, 244, 303']
  • ['Baade, W. 1930, Astron Nachr., 239, 353']
  • ['Bedin, L. R., et al. 2000, A&A, 363, 159']
  • ['Bell, R. A., & Gustafsson, B. 1983, MNRAS, 204, 249']
  • ['Bellazzini, M., Ferraro, F. R., & Ibata, R. 2003a, AJ, 125, 188']
  • ['Bellazzini, M., Ibata, R., Ferraro, F. R., & Testa, V. 2003b, A&A, 405, 577']
  • ['Bolte, M., Hesser, J. E., & Stetson, P. B. 1993, ApJ, 408, L89']
  • ['Buonanno, R. 1993, in ASP Conf. Ser. 48, The Globular Cluster‐Galaxy Connection, ed. G. H. Smith & J. P. Brodie (San Francisco: ASP), 131']
  • ['Buonanno, R., Corsi, C. E., Bellazzini, M., Ferraro, F. R., & Fusi Pecci, F. 1997, AJ, 113, 706']
  • ['Buonanno, R., Corsi, C. E., & Fusi Pecci, F. 1989, A&A, 216, 80']
  • ['Cacciari, C., Bellazzini, M., & Colucci, S. 2002, in IAU Symp. 207, Extragalactic Star Clusters, ed. D. Geisler, E. K. Grebel, & D. Minniti (San Francisco: ASP), 168']
  • ['Cacciari, C., Corwin, T. M., & Carney, B. W. 2005, AJ, 129, 267']
  • ['Carney, B., Fullton, L., & Trammell, S. 1991, AJ, 101, 1699']
  • ['Carney, B., Latham, D. W., & Laird, J. B. 1990, AJ, 99, 572']
  • ['Carretta, E., & Gratton, R. G. 1997, A&AS, 121, 95 (CG97)']
  • ['Cassisi, S., & Salaris, M. 1997, MNRAS, 285, 593']
  • ['Castellani, M., Castellani, V., & Cassisi, S. 2005, A&A, 437, 1017']
  • ['Castellani, V., & Quarta, M. L. 1987, A&AS, 71, 1']
  • ['Catelan, M. 1992, A&A, 261, 443']
  • ['———. 2004a, ApJ, 600, 419']
  • ['———. 2004b, in ASP Conf. Ser. 310, Variable Stars in the Local Group, ed. D. W. Kurtz & K. Pollard (San Francisco: ASP), 113']
  • ['———. 2005, in ASP Conf. Ser., Resolved Stellar Populations, ed. D. Valls‐Gabaud & M. Chávez (San Francisco: ASP), in press (astro‐ph/0507464)']
  • ['Catelan, M., Bellazzini, M., Landsman, W. B., Ferraro, F. R., Fusi Pecci, F., & Galleti, S. 2001, AJ, 122, 3171']
  • ['Catelan, M., Pritzl, B. J., & Smith, H. A. 2004, ApJS, 154, 633']
  • ['Chaboyer, B., Demarque, P., & Sarajedini, A. 1996, ApJ, 459, 558']
  • ['Christian, C. A., et al. 1985, PASP, 97, 363']
  • ['Clement, C. 2000, in ASP Conf. Ser. 220, Amateur–Professional Partnerships in Astronomy, ed. J. R. Percy & J. B. Wilson (San Francisco: ASP), 93']
  • ['Clement, C. M., & Rowe, J. 2000, AJ, 120, 2579']
  • ['Clement, C. M., & Shelton, I. 1999, ApJ, 515, L85']
  • ['Clement, C. M., et al. 2001, AJ, 122, 2587']
  • ['Contreras, R., Catelan, M., Smith, H. A., Pritzl, B. J., & Borissova, J. 2005, ApJ, 623, L117']
  • ['Corwin, T. M., Catelan, M., Smith, H. A., Borissova, J., Ferraro, F. R., & Raburn, W. S. 2003, AJ, 125, 2543']
  • ['Da Costa, G. S., & Armandroff, T. E. 1995, AJ, 109, 2533']
  • ['Davis, H. 1917, PASP, 29, 260']
  • ['Dinescu, D. I., Majewski, S. R., Girard, T. M., & Cudworth, K. M. 2000, AJ, 120, 1892']
  • ['Djorgovski, S., & King, I. R. 1986, ApJ, 305, L61']
  • ['Ferraro, F. R., et al. 1999, AJ, 118, 1738']
  • ['Gratton, R. G., & Ortolani, S. 1988, A&AS, 73, 137']
  • ['Harris, W. E. 1996, AJ, 112, 1487']
  • ['Holtzman, J. A., et al. 1995, PASP, 107, 1065']
  • ['Jurcsik, J. 1995, Acta Astron., 45, 653']
  • ['Jurcsik, J., & Kovács, G. 1996, A&A, 312, 111']
  • ['Kovács, G. 1998, in ASP Conf. Ser. 135, A Half Century of Stellar Pulsation Interpretations: A Tribute to Arthur N. Cox, ed. P. A. Bradley & J. A. Guzik (San Francisco: ASP), 52']
  • ['Landolt, A. U. 1992, AJ, 104, 340']
  • ['Lee, S.‐W. 1977, A&AS, 29, 1']
  • ['Lee, Y.‐W., Demarque, P., & Zinn, R. 1990, ApJ, 350, 155']
  • ['Mackey, A. D., & van den Bergh, S. 2005, MNRAS, 360, 361']
  • ['Mandushev, G. I., Fahlman, G. G., Richer, H. B., & Thompson, I. B. 1996, AJ, 112, 1536']
  • ['Mannino, G. 1957, Mem. Soc. Astron. Italiana, 28, 285']
  • ['Monet, D. G., et al. 1998, CD‐ROM, USNO‐A2.0 (Flagstaff: US Naval Obs.)']
  • ['Nemec, J. M. 2004, AJ, 127, 2185']
  • ['Newburn, R. L. 1957, AJ, 62, 197']
  • ['Oosterhoff, P. Th. 1939, Observatory, 62, 104']
  • ['Peterson, C. J. 1986, PASP, 98, 1258']
  • ['Piotto, G., et al. 2002, A&A, 391, 945']
  • ['———. 2004, ApJ, 604, L109']
  • ['Pritzl, B. J., Smith, H. A., Catelan, M., & Sweigart, A. V. 2002, AJ, 124, 949']
  • ['Pryor, C., & Meylan, G. 1993, in ASP Conf. Ser. 50, Structure and Dynamics of Globular Clusters, ed. S. G. Djorgovski & G. Meylan (San Francisco: ASP), 357']
  • ['Rathbun, P., & Smith, H. 1997, PASP, 109, 1128']
  • ['Rood, R. T., & Crocker, D. A. 1989, in IAU Colloq. 111, The Use of Pulsating Stars in Fundamental Problems of Astronomy, ed. E. G. Schmidt (Cambridge: Cambridge Univ. Press), 218']
  • ['Rosenberg, A., Saviane, I., Piotto, G., & Aparicio, A. 1999, AJ, 118, 2306']
  • ['Sabbi, E., Ferraro, F. R., Sills, A., & Rood, R. T. 2004, ApJ, 617, 1296']
  • ['Salaris, M., Chieffi, A., & Straniero, O. 1993, ApJ, 414, 580']
  • ['Salinas, R., Catelan, M., Smith, H. A., Pritzl, B. J., & Borissova, J. 2005, Inf. Bull. Var. Stars, 5640, 1']
  • ['Salaris, M., & Weiss, A. 2002, A&A, 388, 492']
  • ['Sandage, A. R., & Walker, M. F. 1955, AJ, 60, 230']
  • ['Schlegel, D. J., Finkbeiner, D. P., & Davis, M. 1998, ApJ, 500, 525']
  • ['Simon, N. R., & Clement, C. M, 1993, ApJ, 410, 526']
  • ['Stetson, P. B. 1979, AJ, 84, 1056']
  • ['———. 1987, PASP, 99, 191']
  • ['———. 1990, PASP, 102, 932']
  • ['———. 1993, in IAU Coll. 136, Stellar Photometry: Current Techniques and Future Developments, ed. C. J. Butler & I. Elliot (Cambridge: Cambridge Univ. Press), 291']
  • ['———. 1994, PASP, 106, 250']
  • ['———. 1998, PASP, 110, 1448']
  • ['———. 2000, PASP, 112, 925']
  • ['———. 2005, PASP, 117, 563']
  • ['Stetson, P. B., Bruntt, H., & Grundahl, F. 2003, PASP, 115, 413']
  • ['Stetson, P. B., McClure, R. D., & VandenBerg, D. A. 2004, PASP, 116, 1012']
  • ['Stetson, P. B., VandenBerg, D. A., Bolte, M., Hesser, J. E., & Smith, G. H. 1989, AJ, 97, 1360']
  • ['Stetson, P. B., et al. 1998, ApJ, 508, 491']
  • ['———. 1999, AJ, 117, 247']
  • ['Suntzeff, N. B., Kraft, R. P., & Kinman, T. D. 1988, AJ, 95, 91']
  • ['Trager, S. C., Djorgovski, S., & King, I. R. 1993, in ASP Conf. Ser. 50, Structure and Dynamics of Globular Clusters, ed. S. G. Djorgovski & G. Meylan (San Francisco: ASP), 347']
  • ['VandenBerg, D. A. 2000, ApJS, 129, 315']
  • ['van den Bergh, S., & Mackey, A. D. 2004, MNRAS, 354, 713']
  • ['Wang, J. J., Chen, L., Wu, Z. Y., Gupta, A. C., & Geffert, M. 2000, A&AS, 142, 373']
  • ['Zinn, R., & West, M. J. 1984, ApJS, 55, 45']