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Substructure in Dwarf Galaxies

Published online by Cambridge University Press:  05 March 2013

Matthew Coleman
Matthew Coleman*
Affiliation:
Research School of Astronomy & Astrophysics, Australian National University, Weston Creek ACT 2611, Australia. Email: coleman@mso.anu.edu.au
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Abstract

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Recent years have seen a series of large-scale photometric surveys with the aim of detecting substructure in nearby dwarf galaxies. Some of these objects display a varying distribution of each stellar population, reflecting their star formation histories. Also, dwarf galaxies are dominated by dark matter, therefore luminous substructure may represent a perturbation in the underlying dark material. Substructure can also be the effect of tidal interaction, such as the disruption of the Sagittarius dSph by the Milky Way. Therefore, substructure in dwarf galaxies manifests the stellar, structural, and kinematic evolution of these objects.

Keywords

galaxies: dwarfgalaxies: stellar contentgalaxies: interactionsGalaxy: haloLocal Group
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 21 , Special Issue 4: Structure and Dynamics in the Local Universe , 2004 , pp. 379 - 381
Copyright
Copyright © Astronomical Society of Australia 2004

References

Aaronson, M. 1983, ApJL, 266, L11 CrossRefGoogle Scholar
Armandroff, T. E., Olszewski, E. W., & Pryor, C. 1995, AJ, 110, 2131 Google Scholar
Coleman, M., Da Costa, G. S., Bland-Hawthorn, J., Martínez-Delgado, D., Freeman, K. C., & Malin, D. 2004, AJ, 127, 832 CrossRefGoogle Scholar
Da Costa, G. S., & Armandroff, T. E. 1995, AJ, 109, 2533 Google Scholar
Dinescu, D. I., Majewski, S. R., Girard, T. M., & Cudworth, K. M. 2000, AJ, 120, 1892 Google Scholar
Frinchaboy, P. M., Majewski, S. R., Crane, J. D., Reid, I. N., Rocha-Pinto, H. J., Phelps, R. L., Patterson, R. J., & Muñoz, R. R. 2004, ApJL, 602, L21 Google Scholar
Gómez-Flechoso, M. Á., & Martínez-Delgado, D. 2003, ApJL, 586, L123 Google Scholar
Hargreaves, J. C., Gilmore, G., Irwin, M. J., & Carter, D. 1994, MNRAS, 271, 693 Google Scholar
Helmi, A., & White, S. D. M. 2001, MNRAS, 323, 529 CrossRefGoogle Scholar
Hodge, P. W. 1961, AJ, 66, 83 CrossRefGoogle Scholar
Ibata, R. A., Gilmore, G., & Irwin, M. J. 1994, Natur, 370, 194 CrossRefGoogle Scholar
Irwin, M., & Hatzidimitriou, D. 1995, MNRAS, 277, 1354 Google Scholar
Kleyna, J. T., Geller, M. J., Kenyon, S. J., Kurtz, M. J., & Thorstensen, J. R. 1998, AJ, 115, 2359 Google Scholar
Kleyna, J. T., Wilkinson, M. I., Gilmore, G., & Evans, N. W. 2003, ApJ, 588, L21 CrossRefGoogle Scholar
Knebe, A., Gill, S. P. D., Kawata, D., & Gibson, B. K. 2004, MNRAS, submitted (astro-ph/0407418)Google Scholar
Majewski, S. R., Skrutskie, M. F., Weinberg, M. D., & Ostheimer, J. C. 2003, ApJ, 599, 1082 Google Scholar
Martin, N. F., Ibata, R. A., Bellazzini, M., Irwin, M. J., Lewis, G. F., & Dehnen, W. 2004, MNRAS, 348, 12 Google Scholar
Martínez-Delgado, D., Gallart, C., & Aparicio, A. 1999, AJ, 118, 862 Google Scholar
Martínez-Delgado, D., Alonso-García, J., Aparicio, A., & Gómez-Flechoso, M. A. 2001, ApJL, 549, L63 CrossRefGoogle Scholar
Mateo, M. 1998, ARA&A, 36, 435 Google Scholar
Mayer, L., Governato, F., Colpi, M., Moore, B., Quinn, T., Wadsley, J., Stadel, J., & Lake, G. 2001, ApJ, 559, 754 Google Scholar
Moore, B., Ghigna, S., Governato, F., Lake, G., Quinn, T., Stadel, J., & Tozzi, P. 1999, ApJ, 524, L19 Google Scholar
Mould, J., & Aaronson, M. 1983, ApJ, 273, 530 Google Scholar
Palma, C., Majewski, S. R., Siegel, M. H., Patterson, R. J., Ostheimer, J. C., & Link, R. 2003, AJ, 125, 1352 Google Scholar
Pont, F., Gallart, C., Zinn, R., & Hardy, E. 2004, MmSAI, 75, 134 Google Scholar
Saviane, I., Held, E. V., & Bertelli, G. 2000, A&A, 355, 56 Google Scholar
Stetson, P. B., Hesser, J. E., & Smecker-Hane, T. A. 1998, PASP, 110, 533 Google Scholar
Tosi, M. 2003, AP&SS, 284, 651 Google Scholar
Wilkinson, M. I., Kleyna, J. T., Evans, N. W., Gilmore, G. F., Irwin, M. J., & Grebel, E. K. 2004, ApJL, in press (astro-ph/0406520)Google Scholar