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Mergers and the Formation of Massive Ellipticals

Published online by Cambridge University Press:  25 May 2016

Ralf Bender
Ralf Bender*
Affiliation:
Universitäts-Sternwarte, Scheinerstr. 1, D-81679 München, Germany email: [email protected]

Abstract

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Many nearby luminous elliptical galaxies exhibit counter-rotating cores, minor axis rotation or peculiar velocity fields. These phenomena require that merging and accretion events played a major role in the formation of ellipticals and, equally important, that stars dominated significantly over gas in the merger progenitors. Low redshift analogues to the last stages in the formation of massive ellipticals can be observed in ultraluminous IRAS mergers. However, this does not imply that ellipticals generally formed in spiral-spiral mergers. Mergers can also occur as a consequence of inhomogenous collapse or hierarchical bottom-up structure formation and it is actually more likely that the progenitors of present-day ellipticals did not resemble present-day spirals.

Although some ellipticals most certainly were and still are formed at low redshift, the general formation epoch of massive ellipticals is likely to be found at redshifts > 1. The evidence for this is threefold: (a) the homogenous stellar populations of ellipticals, most notably the tight correlation between colors/absorption linestrengths and velocity dispersion, (b) the high overabundance of light elements relative to iron and (c) the very weak evolution of colors and linestrengths of ellipticals with redshift.

Type
Mergers in the Local Universe
Information
Symposium - International Astronomical Union , Volume 171: New Light on Galaxy Evolution , 1996 , pp. 181 - 190
Copyright
Copyright © Kluwer 1996 

References

Aragon-Salamanca, A., Ellis, R.S., Couch, W.J., Carter, D.: 1993, Mon. Not. R. astr. Soc. 262, 764 CrossRefGoogle Scholar
Balcells, M., Quinn, P.: 1990, Astrophys. J. 361, 381 Google Scholar
Barnes, J., Hernquist, L.: 1996, Astrophys. J., in press Google Scholar
Bender, R.: 1988, Astr. Astrophys. 202, L5 Google Scholar
Bender, R.: 1990, in Dynamics and Interactions of Galaxies, ed. Wielen, R., Springer Verlag Heidelberg, p.232 Google Scholar
Bender, R., Surma, P.: 1992, Astr. Astrophys. 258, 250 Google Scholar
Bender, R., Burstein, D., Faber, S.M.: 1992, Astrophys. J. 399, 462, BBF1 CrossRefGoogle Scholar
Bender, R., Burstein, D., Faber, S.M.: 1993a, Astrophys. J. 411, 153, BBF2 CrossRefGoogle Scholar
Bender, R., et al.: 1993b, in Structure, Dynamics and Chemical Evolution of Elliptical Galaxies, ESO/EIPC workshop, eds. Danziger, J. et al., European Southern Observatory, München Google Scholar
Bender, R., Burstein, D., Faber, S.M.: 1994, in Panchromatic View of Galaxies, eds. Hensler, G et al., Editions Frontieres, Gif-sur-Yvette, p.99 Google Scholar
Bender, R., Ziegler, B., Bruzual, G.: 1996, Astrophys. J., in press Google Scholar
Bernlöhr, K.: 1993, Astr. Astrophys. 270, 20 Google Scholar
Binney, J.: 1985, Mon. Not. R. astr. Soc. 212, 767 CrossRefGoogle Scholar
Bruzual, G, Chariot, S.: 1993, Astrophys. J. 405, 538 Google Scholar
Burstein, D., Davies, R.L., Dressier, A., Faber, S.M., Stone, R.P.S., Lynden-Bell, D., Terlevich, R., Wegner, G.: 1988, in Towards Understanding Galaxies at Large Redshift, eds. Kron, R.G. & Renzini, A., Kluwer Dordrecht, p. 17 Google Scholar
Davies, R.L., Sadler, E., Peletier, R.: 1993, Mon. Not. R. astr. Soc. 262, 650 CrossRefGoogle Scholar
Dressier, A., Lynden-Bell, D., Burstein, D., Davies, R.L., Faber, S.M. D., Terlevich, R., Wegner, G.: 1987, Astrophys. J. 313, 42 Google Scholar
Ellis, R.: 1992, in The Stellar Populations of Galaxies, IAU Symp. 149, eds. Barbuy, B. & Renzini, A., Kluwer Dordrecht Google Scholar
Faber, S.M., Worthey, G., Gonzalez, J.: 1992, in The Stellar Populations in Galaxies, IAU Symp. 149, eds. Barbuy, B. & Renzini, A., Kluwer Dordrecht Google Scholar
Faber, S.M., Trager, S., Gonzalez, J., Worthey, G.: 1995, in Stellar Populations, IAU Symp. 164, eds. van der Kruit, P.C. & Gilmore, G., Kluwer Dordrecht Google Scholar
Fisher, D., Franx, M., Illingworth, G.: 1995, Astrophys. J., in press Google Scholar
Franx, M., Illingworth, G.: 1988, Astrophys. J. 327, L55 Google Scholar
Franx, M., Illingworth, G., Heckman, T.: 1989, Astrophys. J. 344, 613 CrossRefGoogle Scholar
Franx, M., Illingworth, G., de Zeeuw, T.: 1991, Astrophys. J. 383, 112 Google Scholar
Fritze-von Alvensleben, U., Gerhard, O.: 1994, Astr. Astrophys. 285, 775 Google Scholar
Fuhrmann, K., Axer, , Gehren, T.: 1995, Astr. Astrophys., in press Google Scholar
Gilmore, G., Wyse, R.F.G.: 1991, Astrophys. J. 367, L55 Google Scholar
Gonzalez, J.: 1993, , Google Scholar
Hernquist, L., Barnes, J.E.: 1991, Nature 354, 210 Google Scholar
Jedrzejewski, R., Schechter, P.: 1988, Astrophys. J. 330, L87 Google Scholar
Kauffmann, G., White, S.D.M., Guiderdoni, B.: 1993, Mon. Not. R. astr. Soc. 264, 201 Google Scholar
Kauffmann, G.: 1995, Mon. Not. R. astr. Soc., in press Google Scholar
Kormendy, J.: 1984, Astrophys. J. 287, 577 Google Scholar
Kormendy, J., Sanders, D.B.: 1992, Astrophys. J. 390, L53 CrossRefGoogle Scholar
Matteucci, F., Greggio, L.: 1986, Astr. Astrophys. 154, 279 Google Scholar
O'Connell, R.: 1986 in Stellar Populations, eds. Norman, C. et al. Cambridge University Press Google Scholar
Paquet, A.: 1994, , Google Scholar
Peletier, R.: 1989, , Google Scholar
Quinn, P.J., Hernquist, L., Fullagar, D.P.: 1993, Astrophys. J. 403, 74 Google Scholar
Renzini, A., Ciotti, L.: 1993, Astrophys. J. 416, L49 Google Scholar
Rix, H.-W., White, S.D.M.: 1992, Mon. Not. R. astr. Soc. 254, 389 CrossRefGoogle Scholar
Sandage, A., Visvanathan, N.: 1978, Astrophys. J. 223, 707 CrossRefGoogle Scholar
Sanders, D.B., Scoville, N.Z., Sargent, A.I., Soifer, B.T.: 1988, Astrophys. J. 324, L55 Google Scholar
Sanders, D.B., Scoville, N.Z., Soifer, B.T.: 1991, Astrophys. J. 370, 158 CrossRefGoogle Scholar
Schweizer, F.: 1990, in Dynamics and Interactions of Galaxies, ed. Wielen, R., Springer Verlag Heidelberg, p.232 Google Scholar
Schweizer, F., Seitzer, P.: 1992, Astron. J. 104, 1039 Google Scholar
Statler, T.S.: 1994, Astrophys. J. 425, 500 Google Scholar
Steinmetz, M.: 1995, in ‘Galaxies in the Young Universe’, ed. Hippelein, H., Springer Verlag, Heidelberg Google Scholar
Surma, P., Bender, R.: 1995, Astr. Astrophys. 298, 405 Google Scholar
Truran, J., Thielemann, F.: 1986 in Stellar Populations, eds. Norman, C. et al. Cambridge University Press Google Scholar
Truran, J., Burkert, A.: 1995, in it Panchromatic View of Galaxies, eds. Hensler, G et al., Editions Frontieres, Gif-sur-Yvette, p.389 Google Scholar
Worthey, G.: 1994, Astrophys. J.-Suppl. Ser. 95, 107 Google Scholar
Wright, G.S., Joseph, R.D., Robertson, N.A., James, P.A., Meikle, W.P.S.: 1988, Mon. Not. R. astr. Soc. 233, 1 Google Scholar