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The Distribution of Faint Galaxies

Published online by Cambridge University Press:  19 July 2016

Richard Ellis
Richard Ellis*
Affiliation:
Physics Department, Durham University, England DH1 3LE

Abstract

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Faint galaxy data are reviewed in the context of standard evolutionary models and our understanding of the statistical properties of galaxy populations. The differences in number magnitude counts from group to group can largely be understood via fluctuations induced by large scale clustering. However count slopes still present convincing arguments for an extra component of faint blue galaxies beyond B ∼21. Colours provide an useful tool in estimating redshift distributions but the uncertainties are large for the bluest galaxies of interest. However, new faint object redshift surveys are now underway and promise to determine definitively the nature of this extra component. We discuss preliminary results from one of these surveys. Neither distant luminous galaxies nor intrinsically faint nearby galaxies appear to be very numerous to B = 21.5. Many of the galaxies with 0.2 < z < 0.4 show spectral signatures of prominent star-formation. If such objects are somehow related to the excess counts, the traditional redshift-dependent evolutionary theory may require revision.

Type
CHAPTER IV: The Large Scale Distribution of Galaxies
Information
Symposium - International Astronomical Union , Volume 124: Observational Cosmology , 1987 , pp. 367 - 381
Copyright
Copyright © Reidel 1987 

References

Aaronson, M 1978 Ap. J. 221, L103.CrossRefGoogle Scholar
Bean, AJ 1983, , University of Durham.Google Scholar
Bruzual, GB 1983 Ap. J., 273, 105.Google Scholar
Couch, WJ, Ellis, RS, Carter, D and Godwin, J 1983, MNRAS 205, 1287.CrossRefGoogle Scholar
Ciardullo, R 1986, , Yale University.Google Scholar
Davis, M and Geller, MJ, 1976, Ap. J. 208, 13.CrossRefGoogle Scholar
Dressler, A and Gunn, J 1982 Ap. J. 263, 533.CrossRefGoogle Scholar
Dressler, A, Gunn, J and Schneider, DP 1985 Ap. J. 294, 70.Google Scholar
Dube, RR, Wilkinson, DT and Wickes, WC 1979 Ap. J. 232, L51.Google Scholar
Ellis, RS 1980 Phil Trans R Soc London, 296, 355.Google Scholar
Ellis, RS 1982 in Origin and Evolution of Galaxies, ed. Jones, BJT and Jones, JE, (Dordrecht: Reidel), p255 Google Scholar
Ellis, RS 1982 in Early evolution of the Universe and its Present Structure, eds. Abell, GO and Chincarini, G, P87 Google Scholar
Ellis, RS, and Koo, DC 1986, in preparation.Google Scholar
Ellis, RS and Taylor, K 1986, AAT Newsletter 38.Google Scholar
Ellis, RS, Gray, PM, Carter, D and Godwin, J 1984, MNRAS 206, 285.Google Scholar
Ellis, RS, Couch, WJ, MacLaren, I and Koo, DC 1985 MNRAS 217, 239.CrossRefGoogle Scholar
Fong, R, Jones, LR, Shanks, T, Stevenson, PRF, Strong, AW, Dawe, JA, Murray, JD 1986, MNRAS in press.Google Scholar
Infante, L, Pritchet, C and Quintana, H. 1986, A. J. 91, 217.Google Scholar
King, C and Ellis, RS 1985 Ap. J. 288, 456.Google Scholar
Kirschner, RP, Oemler, A and Schechter, PL 1978 A. J. 83, 1549.Google Scholar
Kirschner, RP, Oemler, A and Schechter, PL 1979 A. J. 84, 951.CrossRefGoogle Scholar
Kirschner, RP, Oemler, A, Schechter, PL and Schectman, S 1981 Ap. J. 248, L57.CrossRefGoogle Scholar
Koo, DC 1981 , University of California at Berkeley.Google Scholar
Koo, DC 1982 in Early Evolution of the Universe and its Present Structure, eds. Abell, GO and Chincarini, G, P105 Google Scholar
Koo, DC 1984 in Astronomy from measuring Machines, ed Reid, IN and Hewitt, PC. RGO publications, P112.Google Scholar
Koo, DC 1985 A J 90, 418 CrossRefGoogle Scholar
Koo, DC 1986 STScI Preprint 116 CrossRefGoogle Scholar
Koo, DC and Szalay, AS 1984 Ap. J. 282, 390.CrossRefGoogle Scholar
Kron, R 1978 , University of California at Berkeley Google Scholar
Kron, R 1980 Ap. J. Suppl., 43, 305.Google Scholar
Kron, R 1982 Vistas in Astronomy, 26, 37.Google Scholar
Loh, E D and Spillar, E J 1986 Ap. J. 303, 154.CrossRefGoogle Scholar
MacLaren, I 1987 , University of Durham Google Scholar
Mobasher, B, Ellis, RS and Sharples, RM 1986 MNRAS 223, 11.Google Scholar
Pence, WD 1976 Ap. J. 203, 39 CrossRefGoogle Scholar
Peterson, BA, Ellis, RS, Kibblewhite, EJ, Bridgeland, M, Hooley, A, and Horne, D. 1979 Ap. J. 233, L109.Google Scholar
Peterson, BA, Ellis, RS, Efstathiou, G, Bean, AJ, Shanks, T. Fong, R and Zhen-Long, Z. 1986 MNRAS 221, 233.Google Scholar
Pritchet, C and Infante, L 1986 A. J. 91, 1 Google Scholar
Schechter, PL 1976 Ap. J. 203, 297.CrossRefGoogle Scholar
Shanks, T, Stevenson, PRF, Fong, R and MacGillivray, HT 1984 MNRAS 206, 767 CrossRefGoogle Scholar
Stevenson, PRF, Shanks, T, Fong, R and MacGillivray, HT 1985 MNRAS 213, 953.Google Scholar
Tinsley, BM 1978 Ap. J. 220, 816.Google Scholar
Tinsley, BM 1980 Ap. J. 241, 41.Google Scholar
Tritton, KP and Morton, DC 1984 MNRAS 209, 429.Google Scholar
Tyson, JA and Jarvis, JF 1979 Ap. J. 230, L153.CrossRefGoogle Scholar