Abstract
Because of the wide range of Balmer line strengths observed, elliptical galaxies are usually interpreted to exhibit an appreciable scatter in age. Here we show that Composite Stellar Population models containing an old metal-poor subcomponent simultaneously produce strong Balmer lines and strong metallic lines without invoking a young population. The key to this result is that our SSP models better match the steep increase of Hβ in metal-poor globular clusters than models in the literature. Hence, the scatter of Hβ observed in cluster and luminous field elliptical galaxies can be explained by a spread in the metallicity of old stellar populations. The proposed model is checked against other observational constraints like colors and the flux in the mid-UV.
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References
Burstein, D., Bertola, F., Buson, L.M., Faber, S.M. and Lauer, T.R.: 1988, ApJ 328, 440.
Burstein, D., Faber, S.M., Gaskell, C.M. and Krumm, N.: 1984, ApJ 287, 586.
Covino, S., Galletti, S. and Pasinetti, L.E.: 1995, AandA 303, 79.
Faber, S.M.: 1972, AandA 20, 361.
Faber, S.M., Trager, S.C., Gonzalez, J.J. and Worthey, G.: 1995, in: P.C. Van der Kruit and G. Gilmore (eds.), Stellar Populations, IAU Symposium 164, Dordrecht: Kluwer Academic Publishers, p. 249.
Gonzalez, J.: 1993, Phd thesis, University of California, Santa Cruz.
Harris, W.E.: 1996, AJ 112, 1487.
Kuntschner, H. and Davies, R.L.: 1998, MNRAS 295, L29.
Maraston, C.: 1998, MNRAS 300, 872.
Maraston, C. and Thomas, D., 2000, ApJ 541, 126.
Mehlert, D., Saglia, R.P., Bender, R. and Wegner, G.: 2000, AandAS 141, 449.
Pahre, M.A.: 1998, PhD thesis, California Institute of Technology.
Trager, S.C.: 1998, PhD thesis, University of California, Santa Cruz.
Worthey, G.: 1994, ApJS 95, 107.
Ziegler, B.L. and Bender, R.: 1997, MNRAS 291, 527.
Zinn, R. and West, M.J.: 1984, ApJS 55, 45.
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Maraston, C., Thomas, D. (2001). Strong Balmer Lines in Old Ellipticals. In: Vílchez, J.M., Stasińska, G., Pérez, E. (eds) The Evolution of Galaxies. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-3313-7_65
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DOI: https://doi.org/10.1007/978-94-017-3313-7_65
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