Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-28T22:50:38.634Z Has data issue: false hasContentIssue false
  • English
  • Français

The Globular Cluster Specific Frequency in NGC 1399 and 4486: A Comparative Study

Published online by Cambridge University Press:  03 August 2017

Juan C. Forte ,
Doug Geisler ,
E. Kim ,
Myung Gyoon Lee  and
Pablo Ostrov
Juan C. Forte
Affiliation:
Fac. Cs. Astronómicas y Geofísicas, Univ. Nac. de La Plata, Paseo del Bosque, La Plata 1900, and CONICET, Argentina
Doug Geisler
Affiliation:
Grupo de Astronomía, Dpto. de Física, Univ. de Concepción, Casilla 160-C, Concepción, Chile
E. Kim
Affiliation:
Astronomy Program, Seoul National Unversity, Shinlim-dong, Gwanag-gu, Seoul 151-542, South Korea
Myung Gyoon Lee
Affiliation:
Astronomy Program, Seoul National Unversity, Shinlim-dong, Gwanag-gu, Seoul 151-542, South Korea
Pablo Ostrov
Affiliation:
Fac. Cs. Astronómicas y Geofísicas, Univ. Nac. de La Plata, Paseo del Bosque, La Plata 1900, Argentina

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

A two color CCD survey for globular clusters in the galactocentric range from 2 to 7 arcmin from the galaxy centers is presented for NGC 1399 and NGC 4486 (M87), two systems that, for a long time, have been considered as class archetypes of the so called “high specific frequency phenomenon”. The new results, combined with previously published HST data for the inner 2 arcmin, and with a re-discussion of the surface brightness profiles, allow a new estimate of the globular cluster specific frequencies. The resulting SN values cannot be considered as anomalously large and, rather, they are consistent with values obtained for other galaxies with similar morphologies.

Type
Part 2. Globular Cluster Systems of Distant Galaxies
Information
Symposium - International Astronomical Union , Volume 207: Extragalactic Star Clusters , 2002 , pp. 251 - 255
Copyright
Copyright © Astronomical Society of the Pacific 2002 

References

Boroson, T.A., Thompson, I.B., Schectman, S.A. 1983, AJ, 88, 1707 Google Scholar
Burstein, D. et al. 1987, ApJS, 64, 601 Google Scholar
Carter, D., & Dixon, K. L., 1978, AJ, 83, 6 Google Scholar
de Vaucouleurs, G., & Nieto, J.-L. 1978, ApJ, 220, 449 Google Scholar
Forbes, D.A., Grillmair, C.J., Williger, G.M., Elson, R.A.W., Brodie, J.P. 1998, MNRAS, 293, 325 Google Scholar
Forbes, D., & Forte, J.C. 2001, MNRAS, 322, 25 Google Scholar
Forte, J.C., Geisler, D., Ostrov, P., Piatti, A., & Gieren, 2001, AJ, 121, 1992 Google Scholar
Graham, J. et al. 1999, ApJ, 516, 626 Google Scholar
Grillmair, C. J., Forbes, D.A., Brodie, J.P., Elson, R.A.W. AJ, 117, 167 Google Scholar
Harris, W.E., Harris, G.L.H., McLaughlin, D.E 1998 ApJ, 115, 180 Google Scholar
Harris, W.E., & van den Bergh, S. 1981, AJ 86, 1627 Google Scholar
Kundu, A., Whitmore, B.C., Saprks, W.B., Macchetto, F.D., Zepf, S.E., Ashman, K.M. 1999, ApJ, 513, 733 Google Scholar
McLaughlin, D.E., Harris, W.E., & Hanes, D.A. 1994, ApJ, 422, 486 Google Scholar
Ostrov, P., Forte, J.C., & Geisler, D. 1998, AJ, 116, 2854 Google Scholar
Prosser, Ch et al. 1999, ApJ, 525, 80 Google Scholar
Schombert, J.M. 1986, ApJS 60, 603 Google Scholar
Stetson, P. 1987, PASP, 99, 191 Google Scholar