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Baryonic Properties of the Darkest Galaxies

Published online by Cambridge University Press:  01 June 2007

Eva K. Grebel
Eva K. Grebel*
Affiliation:
Astronomisches Rechen-Institut, Center for Astronomy of the University of Heidelberg, Mönchhofstr. 12–14, D-69120 Heidelberg, Germany email: grebel@ari.uni-heidelberg.de
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Abstract

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The faintest and darkest galaxies that we know of today are the dwarf spheroidal (dSph) galaxies. They appear to be plausible counterparts of cosmologically predicted small subhalos though their numbers do not (yet?) suffice to resolve the substructure crisis. Their mass-to-light ratios may go up to 1000 for the faintest objects, and their total masses are of the order of a few 106 to 107 M⊙. Though most dSphs are dominated by old populations, they all show extended and presumably slow star formation histories with considerable enrichment. While environment has certainly affected their evolution, as evidenced by the morphology-gas-distance relations, intrinsic properties such as their (initial) baryon content may also have played a major role. The complexity and diversity of their star formation histories is surprising, and there are no obvious evolutionary connections to dwarf irregulars.

Keywords

Local Groupgalaxies: dwarfgalaxies: abundancesgalaxies: evolutiongalaxies: stellar contentgalaxies: structurestars: Population IIstars: kinematics
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S244: Dark Galaxies and Lost Baryons , June 2007 , pp. 300 - 310
Copyright
Copyright © International Astronomical Union 2008

References

Armandroff, T. E., Davies, J. E., & Jacoby, G. H. 1998, AJ, 116, 2287CrossRefGoogle Scholar
Armandroff, T. E., Jacoby, G. H., & Davies, J. E. 1999, AJ, 118, 1220CrossRefGoogle Scholar
Bell, E. F., et al. 2007, ApJ, submitted (arXiv:0706.0004)Google Scholar
Belokurov, V., et al. 2006a, ApJ, 647, L111CrossRefGoogle Scholar
Belokurov, V., Evans, N.W., Irwin, M.J., Hewett, P.C., & Wilkinson, M.I. 2006b, ApJ, 637, L29CrossRefGoogle Scholar
Belokurov, V., et al. 2007, ApJ, 654, 897CrossRefGoogle Scholar
Binggeli, B., & Cameron, L. M. 1991, A&A, 252, 27Google Scholar
Blitz, L., Spergel, D. N., Teuben, P. J., Hartmann, D., & Burton, W. B. 1999, ApJ, 514, 818CrossRefGoogle Scholar
Braun, R., & Burton, W. B. 1999, A&A, 341, 437Google Scholar
Brown, W. R., Allende Prieto, C., Beers, T. C., Wilhelm, R., Geller, M. J., Kenyon, S. J., & Kurtz, M. J. 2003, AJ, 126, 1362CrossRefGoogle Scholar
Brown, W. R., Geller, M. J., Kenyon, S. J., Beers, T. C., Kurtz, M. J., & Roll, J. B. 2004, AJ, 127, 1555CrossRefGoogle Scholar
Bullock, J. S., Kravtsov, A. V., & Weinberg, D. H. 2001, ApJ, 548, 33CrossRefGoogle Scholar
Carollo, D., et al. 2007, arXiv:0706.3005Google Scholar
Coleman, M. G., Da Costa, G. S., Bland-Hawthorn, J., & Freeman, K. C. 2005, AJ, 129, 1443CrossRefGoogle Scholar
Coleman, M. G., Jordi, K., Rix, H.-W., Grebel, E. K., & Koch, A. 2007, AJ, in press (arXiv:0708.1853)Google Scholar
Conn, B. C., Lewis, G. F., Irwin, M. J., Ibata, R. A., Ferguson, A. M. N., Tanvir, N., & Irwin, J. M. 2005, MNRAS, 362, 475CrossRefGoogle Scholar
Dinescu, D. I., Keeney, B. A., Majewski, S. R., & Girard, T. M. 2004, AJ, 128, 687CrossRefGoogle Scholar
Duffau, S., Zinn, R., Vivas, A. K., Carraro, G., Méndez, R. A., Winnick, R., & Gallart, C. 2006, ApJ, 636, L97CrossRefGoogle Scholar
Einasto, J., Saar, E., Kaasik, A., & Chernin, A. D. 1974, 252, 111CrossRefGoogle Scholar
Famaey, B., Pont, F., Luri, X., Udry, S., Mayor, M., & Jorissen, A. 2007, A&A, 461, 957Google Scholar
Feltzing, S., Gilmore, G., & Wyse, R. F. G. 1999, ApJ, 516, L17CrossRefGoogle Scholar
Ferguson, A. M. N., Irwin, M. J., Ibata, R. A., Lewis, G. F., & Tanvir, N. R. 2002, AJ, 124, 1452CrossRefGoogle Scholar
Fulbright, J. P. 2002, AJ, 123, 404CrossRefGoogle Scholar
Fusi Pecci, F., Bellazzini, M., Cacciari, C., & Ferraro, F. R. 1995, AJ, 110, 1664CrossRefGoogle Scholar
Gallagher, J. S., Madsen, G. J., Reynolds, R. J., Grebel, E. K., & Smecker-Hane, T. A. 2003, ApJ, 588, 326CrossRefGoogle Scholar
Geisler, D., Smith, V. V., Wallerstein, G., Gonzalez, G., & Charbonnel, C. 2005, AJ, 129, 1428CrossRefGoogle Scholar
Gilmore, G., Wilkinson, M. I., Wyse, R. F. G., Kleyna, J. T., Koch, A., Evans, N. W., & Grebel, E. K. 2007, ApJ, 663, 948CrossRefGoogle Scholar
Goerdt, T., Moore, B., Read, J. I., Stadel, J., & Zemp, M. 2006, MNRAS, 368, 1073CrossRefGoogle Scholar
Grebel, E. K. 1997, Reviews in Modern Astronomy, 10, 29Google Scholar
Grebel, E. K. 1999, The Stellar Content of the Local Group, IAU Symp. 192, eds. Whitelock, P. & Cannon, R. (San Francisco: ASP), 17Google Scholar
Grebel, E. K. 2000, in Star Formation from the Small to the Large Scale, 33rd ESLAB Symp., SP-445, eds. Favata, F., Kaas, A. A., & Wilson, A. (Noordwijk: ESA), 87Google Scholar
Grebel, E. K. 2001, Ap& SSS, 277, 231Google Scholar
Grebel, E. K. 2005, in Stellar Astrophysics with the World Largest Telescopes, AIP Conf. Proc. # 752, eds. Mikołaewska, J. & Olech, A. (Melville: AIP), 161Google Scholar
Grebel, E. K., & Guhathakurta, P. 1999, ApJ, 511, L101CrossRefGoogle Scholar
Grebel, E. K., & Stetson, P. B. 1999, The Stellar Content of the Local Group, IAU Symp. 192, eds. Whitelock, P. & Cannon, R. (San Francisco: ASP), 165Google Scholar
Grebel, E. K., & Gallagher, J. S. III, 2004, ApJ, 610, L89CrossRefGoogle Scholar
Grebel, E. K., Gallagher, J. S. III, & Harbeck, D. 2003, AJ, 125, 1926CrossRefGoogle Scholar
Grillmair, C. J., et al. 1998, AJ, 115, 144CrossRefGoogle Scholar
Grillmair, C. J. 2006, ApJ, 645, L37CrossRefGoogle Scholar
Grillmair, C. J., & Johnson, R. 2006, ApJ, 639, L17CrossRefGoogle Scholar
Harbeck, D., et al. , 2001, AJ, 122, 3092CrossRefGoogle Scholar
Helmi, A., White, S. D. M., & Springel, V. 2003, MNRAS, 339, 834CrossRefGoogle Scholar
Helmi, A., et al. , 2006, ApJ, 651, L121CrossRefGoogle Scholar
Hilker, M., Mieske, S., & Infante, L. 2003, A&A, 397, L9Google Scholar
Hurley-Keller, D., Mateo, M., & Grebel, E. K. 1999, ApJ, 523, L25CrossRefGoogle Scholar
Ibata, R. A., Gilmore, G., & Irwin, M. J. 1994, Nature, 370, 194CrossRefGoogle Scholar
Ibata, R., Irwin, M., Lewis, G., Ferguson, A. M. N., & Tanvir, N. 2001, Nature, 412, 49CrossRefGoogle Scholar
Ibata, R., Martin, N. F., Irwin, M., Chapman, S., Ferguson, A. M. N., Lewis, G. F., & McConnachie, A. W. 2007, arXiv:0704.1318Google Scholar
Ikuta, C., & Arimoto, N. 2002, A&A, 391, 55Google Scholar
Juric, M., et al. 2005, arXiv:astro-ph/0510520Google Scholar
Kaiser, N., et al. , 2002, SPIE, 4836, 154Google Scholar
Karachentsev, I. D., & Karachentseva, V. E. 1999, A&A, 341, 355Google Scholar
Karachentsev, I. D., et al. , 2002a, A&A, 389, 812Google Scholar
Karachentsev, I. D., et al. , 2002b, A&A, 385, 21Google Scholar
Karachentsev, I. D., et al. , 2002c, A&A, 383, 125Google Scholar
Klessen, R. S., & Kroupa, P. 1998, ApJ, 498, 143CrossRefGoogle Scholar
Klessen, R. S., Grebel, E. K., & Harbeck, D. 2003, ApJ, 589, 798CrossRefGoogle Scholar
Knapp, G. R., Kerr, F. J., & Bowers, P. F. 1978, AJ, 83, 360CrossRefGoogle Scholar
Koch, A., & Grebel, E. K. 2006, AJ, 131, 1405CrossRefGoogle Scholar
Koch, A., Grebel, E. K., Wyse, R. F. G., Kleyna, J. T., Wilkinson, M. I., Harbeck, D. R., Gilmore, G. F., & Evans, N. W. 2006a, AJ, 131, 895CrossRefGoogle Scholar
Koch, A., Grebel, E. K., Wyse, R. F. G., Kleyna, J. T., Wilkinson, M. I., Harbeck, D. R., Gilmore, G. F., & Evans, N. W. 2006b, The Messenger, 123, 38Google Scholar
Koch, A., Grebel, E. K., Kleyna, J. T., Wilkinson, M. I., Harbeck, D. R., Gilmore, G. F., Wyse, R. F. G., & Evans, N. W. 2007a, AJ, 133, 270CrossRefGoogle Scholar
Koch, A., Wilkinson, M. I., Kleyna, J. T., Gilmore, G. F., Grebel, E. K., Mackey, A. D., Evans, N. W., & Wyse, R. F. G. 2007b, ApJ, 657, 241CrossRefGoogle Scholar
Koch, A., Kleyna, J. T., Wilkinson, M. I., Grebel, E. K., Gilmore, G. F., Evans, N. W., Wyse, R. F. G., & Harbeck, D. R. 2007c, AJ, 134, 566CrossRefGoogle Scholar
Koch, A., Grebel, E. K., Gilmore, G. F., Wyse, R. F. G., Kleyna, J. T., Harbeck, D. R., Wilkinson, M. I., & Evans, N. W. 2007d, AJ, submittedGoogle Scholar
Komiyama, Y., et al. , 2007, AJ, 134, 835CrossRefGoogle Scholar
Kroupa, P., Theis, C., & Boily, C. M. 2005, A&A, 431, 517Google Scholar
Kunkel, W. E. 1979, ApJ, 228, 718CrossRefGoogle Scholar
Lanfranchi, G. A., & Matteucci, F. 2004, MNRAS, 351, 1338CrossRefGoogle Scholar
Lisker, T., Grebel, E. K., & Binggeli, B. 2006a, AJ, 132, 497CrossRefGoogle Scholar
Lisker, T., Glatt, K., Westera, P., & Grebel, E. K. 2006b, AJ, 132, 2432CrossRefGoogle Scholar
Lisker, T., Grebel, E. K., Binggeli, B., & Glatt, K. 2007, ApJ, 660, 1186CrossRefGoogle Scholar
Liu, C., Hu, J., & Zhao, Y. 2006, arXiv:astro-ph/0612173Google Scholar
Lynden-Bell, D. 1982, The Observatory, 102, 202Google Scholar
Majewski, S. R. 1994, ApJ, 431, L17CrossRefGoogle Scholar
Majewski, S. R., Skrutskie, M. F., Weinberg, M. D., & Ostheimer, J. C. 2003, ApJ, 599, 1082CrossRefGoogle Scholar
Majewski, S. R., et al. 2007, arXiv:astro-ph/0702635Google Scholar
Martin, N. F., Ibata, R. A., Conn, B. C., Lewis, G. F., Bellazzini, M., & Irwin, M. J. 2005, MNRAS, 362, 906CrossRefGoogle Scholar
Martin, N. F., Ibata, R. A., Irwin, M. J., Chapman, S., Lewis, G. F., Ferguson, A. M. N., Tanvir, N., & McConnachie, A. W. 2006, MNRAS, 371, 1983CrossRefGoogle Scholar
Mateo, M. 1997, in The Nature of Elliptical Galaxies; 2nd Stromlo Symposium, ASP Conf. Ser. 116, eds. Arnaboldi, M., Costa, G.S. Da, and Saha, P. (San Francisco: ASP), 259Google Scholar
Mayer, L., Governato, F., Colpi, M., Moore, B., Quinn, T., Wadsley, J., Stadel, J., & Lake, G. 2001, ApJ, 547, L123CrossRefGoogle Scholar
Mayer, L., Mastropietro, C., Wadsley, J., Stadel, J., & Moore, B. 2006, MNRAS, 369, 1021CrossRefGoogle Scholar
Momany, Y., Zaggia, S., Gilmore, G., Piotto, G., Carraro, G., Bedin, L. R., & de Angeli, F. 2006, A&A, 451, 515Google Scholar
Monaco, L., Bellazzini, M., Bonifacio, P., Ferraro, F. R., Marconi, G., Pancino, E., Sbordone, L., & Zaggia, S. 2005, A&A, 441, 141Google Scholar
Monelli, M., et al. , 2003, AJ, 126, 218CrossRefGoogle Scholar
Moore, B., Diemand, J., Madau, P., Zemp, M., & Stadel, J. 2006, MNRAS, 368, 563CrossRefGoogle Scholar
Muñoz, R. R., et al. 2005, ApJ, 631, L137CrossRefGoogle Scholar
Newberg, H. J., et al. , 2002, ApJ, 569, 245CrossRefGoogle Scholar
Newberg, H. J., et al. , 2003, ApJ, 596, L191CrossRefGoogle Scholar
Nordström, B., et al. , 2004, A&A, 418, 989Google Scholar
Odenkirchen, M., et al. 2001a, ApJ, 548, L165CrossRefGoogle Scholar
Odenkirchen, M., et al. 2001b, AJ, 122, 2538CrossRefGoogle Scholar
Odenkirchen, M., et al. 2003, AJ, 126, 2385CrossRefGoogle Scholar
Oh, K. S., Lin, D. N. C., & Richer, H. B. 2000, ApJ, 531, 727CrossRefGoogle Scholar
Palma, C., Majewski, S. R., Siegel, M. H., Patterson, R. J., Ostheimer, J. C., & Link, R. 2003, AJ, 125, 1352CrossRefGoogle Scholar
Peñarrubia, J., et al. , 2005, ApJ, 626, 128CrossRefGoogle Scholar
Roberts, S., Davies, J., Sabatini, S., Auld, R., & Smith, R. 2007, MNRAS, 567Google Scholar
Rockosi, C. M., et al. , 2002, AJ, 124, 349CrossRefGoogle Scholar
Sadakane, K., Arimoto, N., Ikuta, C., Aoki, W., Jablonka, P., & Tajitsu, A. 2004, PASJ, 56, 1041CrossRefGoogle Scholar
Sakamoto, T., & Hasegawa, T. 2006, ApJ, 653, L29CrossRefGoogle Scholar
Sarajedini, A., et al. 2002, ApJ, 567, 915CrossRefGoogle Scholar
Sbordone, L., Bonifacio, P., Buonanno, R., Marconi, G., Monaco, L., & Zaggia, S. 2007, A&A, 465, 815Google Scholar
Ségall, M., Ibata, R. A., Irwin, M. J., Martin, N. F., & Chapman, S. 2007, MNRAS, 375, 831CrossRefGoogle Scholar
Shetrone, M. D., Côté, P., & Sargent, W. L. W. 2001, ApJ, 548, 592CrossRefGoogle Scholar
Simon, J. D., & Geha, M. 2007, arXiv:0706.0516Google Scholar
Skrutskie, M. F., et al. 2006, AJ, 131, 1163CrossRefGoogle Scholar
Smecker-Hane, T. A., Stetson, P. B., Hesser, J. E., & Lehnert, M. D. 1994, AJ, 108, 507CrossRefGoogle Scholar
Smith, M. C., et al. , 2007, MNRAS, 379, 755CrossRefGoogle Scholar
Sohn, S. T., et al. 2007, ApJ, 663, 960CrossRefGoogle Scholar
Steinmetz, M., et al. 2006, AJ, 132, 1645CrossRefGoogle Scholar
Stetson, P. B., Hesser, J. E., & Smecker-Hane, T. A. 1998, PASP, 110, 533CrossRefGoogle Scholar
Stoughton, C., et al. 2002, AJ, 123, 485CrossRefGoogle Scholar
Strigari, L. E., Bullock, J. S., Kaplinghat, M., Kravtsov, A. V., Gnedin, O. Y., Abazajian, K., & Klypin, A. A. 2006, ApJ, 652, 306CrossRefGoogle Scholar
Tolstoy, E., Venn, K. A., Shetrone, M., Primas, F., Hill, V., Kaufer, A., & Szeifert, T. 2003, AJ, 125, 707CrossRefGoogle Scholar
Tolstoy, E., et al. , 2004, ApJ, 617, L119CrossRefGoogle Scholar
Vivas, A. K., & Zinn, R. 2006, AJ, 132, 714CrossRefGoogle Scholar
Vivas, A. K., et al. , 2001, ApJ, 554, L33CrossRefGoogle Scholar
Walker, M. G., Mateo, M., Olszewski, E. W., Bernstein, R., Wang, X., & Woodroofe, M. 2006, AJ, 131, 2114CrossRefGoogle Scholar
Walker, M. G., Mateo, M., Olszewski, E. W., Gnedin, O. Y., Wang, X., Sen, B., & Woodroofe, M. 2007, arXiv:0708.0010Google Scholar
Walsh, S. M., Jerjen, H., & Willman, B. 2007, ApJ, 662, L83CrossRefGoogle Scholar
Whiting, A. B., Hau, G. K. T., & Irwin, M. 1999, AJ, 118, 2767CrossRefGoogle Scholar
Wilkinson, M. I., Kleyna, J. T., Evans, N. W., Gilmore, G. F., Irwin, M. J., & Grebel, E. K. 2004, ApJ, 611, L21CrossRefGoogle Scholar
Wilkinson, M. I., Kleyna, J. T., Gilmore, G. F., Evans, N. W., Koch, A., Grebel, E. K., Wyse, R. F. G., & Harbeck, D. R. 2006, The Messenger, 124, 25Google Scholar
Willman, B., et al. , 2005, ApJ, 626, L85CrossRefGoogle Scholar
Wyse, R. F. G., Gilmore, G., Norris, J. E., Wilkinson, M. I., Kleyna, J. T., Koch, A., Evans, N. W., & Grebel, E. K. 2006, ApJ, 639, L13CrossRefGoogle Scholar
Yanny, B., et al. , 2003, ApJ, 588, 824CrossRefGoogle Scholar
Young, L. M. 1999, AJ, 117, 1758CrossRefGoogle Scholar
Zucker, D. B., et al. , 2004a, ApJ, 612, L117CrossRefGoogle Scholar
Zucker, D. B., et al. , 2004b, ApJ, 612, L121CrossRefGoogle Scholar
Zucker, D. B., et al. , 2006a, ApJ, 643, L103CrossRefGoogle Scholar
Zucker, D. B., et al. , 2006b, ApJ, 650, L41CrossRefGoogle Scholar
Zucker, D. B., et al. , 2007, ApJ, 659, L21CrossRefGoogle Scholar