Abstract
We present results from a large scale R-band survey of the nearby Leo I group to measure the luminosity function down to dwarf spheroidal luminosities and surface brightnesses. This program has utilized > 7 square degrees of imaging with the Mosaic camera at the KPNO 0.9m and extensive, on-going spectroscopic follow-up. We estimate our completeness from simulations to be 90% at µ R (0)≃24.5, M R ≃–11. Leo I is a nearby, low-density group for which a steep faint-end slope has been suggested (Ferguson and Sandage, 1991). We find the luminosity function to be more similar to that of the Local Group at the faint-end (flat). We also find an unusual gap in the luminosity function at intermediate luminosities, –19.5 < M R < –16. This gap cannot be explained by pure Poisson fluctuations around a typical Schechter function, nor is it likely to result from photometric incompleteness.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
Bullock, J.S., Kravtsov, A.V and Weinberg, D.H.: 2000, ApJ 539, 517.
Chiu, W.A., Gnedin, N.Y. and Ostriker, J.P.: 2001, ApJ 563, 21.
Durret, F., Adami, C. and Lobo, C.: 2002, A&A 393, 439.
Ferguson, H.C. and Sandage, A.: 1991, AJ 101, 765.
Flint, K., Bolte, M. and Mendes de Oliveira, C.: 2001a, in: K.S. de Boer, R.J. Dettmar and U. Klein (eds.), Dwarf Galaxies and their Environment, Shaker Verlag, Germany, p. 209.
Flint, K., Metevier, A.J., Bolte, M. and Mendes de Oliveira, C.: 2001b, ApJS 134, 53.
Johnston, K.V, Sigurdsson, S. and Hernquist, L.: 1999, MNRAS 302, 771.
Klypin, A., Kravtsov, A.V, Valenzuela, O. and Prada, F.: 1999, ApJ 522, 82.
Moore, B., Ghigna, S., Govemato, F., Lake, G., Quinn, T., Stadel, J. and Tozzi, P.: 1999, ApJL 524, Ll9.
Moore, B., Quilis, V. and Bower, R.: 2000, in: F. Combes, G.A. Mamon and V. Charmandaris (eds.),ASP Conf. Ser. 197: Dynamics of Galaxies: from the Early Universe to the Present, p. 363.
Pritchet, C.I. and van den Bergh, S.: 1999, AJ 118, 883.
Schechter, P.: 1976, ApJ 203, 297.
Trentham, N. and Tully, R.B.: 2002, MNRAS 335, 712.
Tully, R.B.: 1987, ApJ 321, 280.
Tully, R.B., Somerville, R.S., Trentham, N. and Verheijen, M.A.W.: 2002, ApJ 569, 573.
Yagi, M., Kashikawa, N., Sekiguchi, M., Doi, M., Yasuda, N., Shimasaku, K. and Okamura, S.: 2002, AJ 123, 87.
Zabludoff, A.I. and Mulchaey, J.S.: 2000, ApJ 539, 136.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2003 Springer Science+Business Media Dordrecht
About this chapter
Cite this chapter
Flint, K., Bolte, M., De Oliveira, C.M. (2003). The Missing Intermediate Luminosity Galaxies in the Leo I Group. In: Lobo, C., Serote Roos, M., Biviano, A. (eds) Galaxy Evolution in Groups and Clusters. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0107-6_25
Download citation
DOI: https://doi.org/10.1007/978-94-010-0107-6_25
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-3975-8
Online ISBN: 978-94-010-0107-6
eBook Packages: Springer Book Archive