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The Morphological Evolution of Field Galaxies

Published online by Cambridge University Press:  07 August 2017

Richard S. Ellis
Richard S. Ellis*
Affiliation:
Institute of Astronomy, Madingley Road, Cambridge CB3 0HA, UK ([email protected])

Abstract

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I review two observational programs which, together, promise to unravel the detailed astrophysical evolution of normal field galaxies over the last 5-7 Gyr. Systematic ground-based spectroscopy of faint galaxies have revealed an increasing faint end slope for the luminosity function with redshift. The trend is strongest for galaxies undergoing intense star-formation. Deep images taken with the repaired HST can be used to count galaxies as a function of morphological type. Regular “Hubble sequence” galaxies follow the no-evolution prediction, but irregular/peculiar sources have a steeper count slope and provide the excess population. Although the overlap between the spectral and HST samples is currently small, plans to merge similar datasets should reveal the physical explanation for the demise of star formation in faint blue galaxies since z ≃0.5-l.

Type
Session 7: Galaxies at Large Redshift
Information
Symposium - International Astronomical Union , Volume 164: Stellar Populations , 1995 , pp. 291 - 300
Copyright
Copyright © Kluwer 1995 

References

Babul, A. and Rees, M.J., 1992, M. N. R. A. S. 255, 346 Google Scholar
Binggeli, B., Sandage, A. and Tammann, G., 1988, Ann. Rev. Astron. Astroph. 26, 509 CrossRefGoogle Scholar
Broadhurst, T.J., Ellis, R.S. and Shanks, T., 1988, M. N. R. A. S. 235, 827 Google Scholar
Broadhurst, T.J., Ellis, R.S. and Glazebrook, K., 1992, Nature 355, 55 Google Scholar
Colless, M., Ellis, R.S., Taylor, K. and Hook, R., 1990, M. N. R. A. S. 244, 408 Google Scholar
Colless, M., Ellis, R.S., Broadhurst, T.J., Taylor, K. and Peterson, B.A., 1993 M. N. R. A. S. 261, 19 Google Scholar
Colless, M., Schade, D., Broadhurst, T.J. and Ellis, R.S., 1994, M. N. R. A. S. 267, 1108 Google Scholar
Colless, M. Wide Field Spectroscopy, eds. Maddox, S.J. and Aragón-Salamanca, A., World Scientific, in press Google Scholar
Cowie, L., Songaila, A. and Hu, E.M., 1991, Nature 354, 460 Google Scholar
Efstathiou, G., Ellis, R.S. and Peterson, B.A., 1988, M. N. R. A. S. 232, 431 Google Scholar
Ellis, R.S., Broadhurst, T.J., Colless, M.M., Heyl, J.S. and Glazebrook, K., 1994, M. N. R. A. S., submitted Google Scholar
Giraud, E., 1992, A. & A. 257, 501 Google Scholar
Glazebrook, K., Ellis, R.S., Colless, M., Broadhurst, T. J., Allington-Smith, J. and Tanvir, N., 1994, M. N. R. A. S., in press Google Scholar
Glazebrook, K., Ellis, R.S., Santiago, B. and Griffiths, R., 1995, Nature, submitted Google Scholar
Griffiths, R.E. et al., 1994) Ap. J. 435, L19 Google Scholar
Heyl, J., 1994 , University of Cambridge, UK Google Scholar
Kennicutt, R. C., 1992, Ap. J. 388, 310 Google Scholar
King, C.R. and Ellis, R.S., 1985, Ap. J. 288, 456 Google Scholar
Kron, R., 1982, Vistas Astron. 26, 37 Google Scholar
Loveday, J., Peterson, B.A., Efstathiou, G., Maddox, S.J. and Sutherland, W.J., 1992, Ap. J. 390, 338 Google Scholar
Maddox, S.J., Sutherland, W.J., Efstathiou, G., Loveday, J. and Peterson, B.A., 1990, M. N. R. A. S. 247, 1P Google Scholar
McGaugh, S., 1994, Nature 367, 538 Google Scholar
Parry, I.R. and Sharples, R.M., 1988, Fiber Optics in Astronomy, ed. Barden, S.M., PASP series Vol. 3, p93 Google Scholar
Steidel, C., 1994, Wide Field Spectroscopy, eds. Maddox, S.J. and Aragón-Salamanca, A., World Scientific, in press Google Scholar