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Journal of Astrophysics and Astronomy

, Volume 18, Issue 4, pp 271–294 | Cite as

A case for the standard model

  • G. A. Tammann
Article
  • 22 Downloads

Abstract

The fundamental properties of Friedmann Universes, which are attractive because of their simplicity, are linear expansion (except for deceleration), cooling, and evolution. In addition it is assumed that the fundamental constants of physics are constant and that the known laws of physics apply (including GR). An increasing number of observational tests support these premises. In particular the expansion is as linear as can be tested. The present expansion rate (H 0 = 55 ± 10 km s-1 Mpc-1) implies an expansion age of 17.8 ± 3.2 Gyr (forq 0 = 0) to 11.9 ± 2.1 Gyr (for q0 = 1/2). This agrees perfectly within the errors, even for a critical Universe, with present age determinations of the oldest objects in the Galaxy which require 13.5 ± 2 Gyr.

Keywords

Spiral Galaxy Luminosity Function Cluster Distance Distance Modulus Large Magellanic Cloud 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Alcock, C.etal. 1996, preprint (astro-ph/9608036).Google Scholar
  2. Antonucci, R. 1993,A. R. A. A.,31, 473.ADSGoogle Scholar
  3. Bahcall, J. N., Kirhakos, S., Saxe, D. H. 1997,Astrophys. J.,479, 642.CrossRefADSGoogle Scholar
  4. Bahcall, N. A., Oh, S. P. 1996,Astrophys. J.,462, L49.CrossRefADSGoogle Scholar
  5. Baron, E.etal. 1995,Astrophys. J.,441, 170.CrossRefADSGoogle Scholar
  6. Bartel, N. 1991, in:Supernovae, (ed.) S. E. Woosley, (New York: Springer), p. 760.Google Scholar
  7. Baum, W. A. etal. 1995,Astr. J.,110, 2537.CrossRefADSGoogle Scholar
  8. Baum, W. A.etal. 1997,Astr. J., in press.Google Scholar
  9. Beaulien, J. P.etal. 1997,Astr. Astrophys., in press.Google Scholar
  10. Bergbush, P. A., VandenBerg, D. A. 1992,Astrophys. J. S.,81, 163.CrossRefADSGoogle Scholar
  11. Bershady, M. A. 1996, in:Dark and Visible Matter in Galaxies and Cosmological Implica-tions, (eds.) M. Persic& P. Salucci, (San Francisco: ASP Conference Series), in press.Google Scholar
  12. Binggeli, B., Popescu, C. C., Tammann, G. A. 1993,Astr. Astrophys. Suppl.,98, 275.ADSGoogle Scholar
  13. Binggeli, B., Sandage, A., Tammann, G. A. 1985,Astr. J.,90, 1681.CrossRefADSGoogle Scholar
  14. Birkinshaw, ML, Hughes, J. P. 1994,Astrophys. J.,420, 33.CrossRefADSGoogle Scholar
  15. Blandford, R. D., Narayan, R. 1992,A. R.A.A.,30, 311.ADSGoogle Scholar
  16. Böhringer, H. et al. 1994,Nature,368, 828.CrossRefADSGoogle Scholar
  17. Bottinelli, L., Gouguenheim, L., Paturel, G. H., Teerikorpi, P. 1986a,Astr. Astrophys.,156, 157.ADSGoogle Scholar
  18. Bottinelli, L., Gouguenheim, L., Paturel, G. H., Teerikorpi, P. 1986b,Astr. Astrophys.,166, 39.ADSGoogle Scholar
  19. Bottinelli, L., Gouguenheim, L., Paturel, G. H., Teerikorpi, P. 1991,Astr. Astrophys.,252, 550.ADSGoogle Scholar
  20. Branch, D., Fisher, A., Nugent, P., Baron, E. 1996, in:The Extragalactic Distance Scale, Poster papers from the STScI Symposium, (eds.) M. Livio, M. Donahue, N. Panagia, (Baltimore: STScI), p. 4.Google Scholar
  21. Branch, D., Nugent, P., Fisher, A. 1997, in:Thermonuclear Supernovae, (eds.) P. Ruiz-Lapuente, R. Canal, J. Isern, (Dordrecht: Kluwer), p. 715.Google Scholar
  22. Branch, D., Romanishin, W., Baron, E. 1996,Astrophys. J.,465, 73.CrossRefADSGoogle Scholar
  23. Capaccioli, M., Della Valle, M., D’Onofrio, M., Rosino, L. A. 1989,Astr. J.,97, 1622.CrossRefADSGoogle Scholar
  24. Chaboyer, B. 1995,Astrophys. J.,444, L9.CrossRefADSGoogle Scholar
  25. Chiosi, C, Wood, P. R., Capitanio, N. 1993,Astrophys. J. Suppl.,86, 541.CrossRefADSGoogle Scholar
  26. Cohen, J. G. 1985,Astrophys. J.,292, 90.CrossRefADSGoogle Scholar
  27. Corbett, E. A., Browne, I. W. A., Wilkinson, P. N., Patniak, A. R. 1995, preprint.Google Scholar
  28. Cowan, J. I, McWilliam, A., Sneden, C., Buris, D. L. 1997,Astrophys. J.,480, 246.CrossRefADSGoogle Scholar
  29. Cowan, J. J., Thielemann, F.K., Truran, J. W. 1990,Astrophys. J.,323, 543.CrossRefADSGoogle Scholar
  30. da Costa, L. N. 1997, Talk presented at the 8th Marcel Grossmann Symposium, Jerusalem D’Antona, F. Caloi, V., Mazzitelli, I. 1997,Astrophys. J.,477, 519.CrossRefGoogle Scholar
  31. Dekel, A. 1994,A. R. A. A.,32, 371.ADSGoogle Scholar
  32. Dekel, A. 1996, private communication.Google Scholar
  33. Demarque, P. 1996, Talk presented at the workshop on the distance scale, Baltimore, May 1996.Google Scholar
  34. Di Benedetto, G. P. 1997,Astrophys. J., in press.Google Scholar
  35. Dressler, A. 1987,Astrophys. J.,317, 1.CrossRefADSGoogle Scholar
  36. Eckart, A., Genzel, R. 1997,Mon. Not. R. astr. Soc.,284, 576.ADSGoogle Scholar
  37. Ellis, R. S. 1997, preprint (astro-ph/9704019).Google Scholar
  38. Elson, R. A. W., Santiago, B. X. 1996,Mon. Not. R. astr. Soc.,280, 971.ADSGoogle Scholar
  39. Falco, E. E., Lehar, J., Shapiro, I. I. 1997,Astr. J., in press.Google Scholar
  40. Feast, M. W., Walker, A. R. 1987,A. R. A. A.,25, 345.ADSGoogle Scholar
  41. Federspiel, M., Sandage, A., Tammann, G. A. 1994,Astrophys. J.,430, 29.CrossRefADSGoogle Scholar
  42. Federspiel, M., Sandage, A., Tammann, G. A. 1997,Astrophys. J., in press.Google Scholar
  43. Fixsen, D. J, Hinshaw, G., Bennett, C. L., Mather, J. C. 1997, preprint (astro-ph/9704176).Google Scholar
  44. Freedman, W. L. 1997, in:The Extragalactic Distance Scale, (eds.) M. Livio, M. Donahue, N. Panagia, (Cambridge: Cambridge University Press), p. 171.Google Scholar
  45. Freedman, W. L. et al. 1994,Nature,371, 757.CrossRefADSGoogle Scholar
  46. Fisher, K. B., Davis, M., Strauss, M. A., Yahil, A., Huchra, J. P. 1994,Mon. Not. R. astr. Soc.,267, 927.ADSGoogle Scholar
  47. Franx, M. Illingworth, G. D, Kelson, D. D., van Dokkum, P. G., Tran, K.-V. 1997, preprint (astro-ph/9704090).Google Scholar
  48. Fritze-von Alvensleben, U., Gerhard, O. E. 1994,Astr. Astrophys.,285, 775.ADSGoogle Scholar
  49. Gautschy, A., Saio, H. 1997, in press.Google Scholar
  50. Ge,J. et al. 1997,Astrophys. J.,474, 67.CrossRefADSGoogle Scholar
  51. Giovanelli, R. 1997, in:The Extragalactic Distance Scale, (eds.) M. Livio, M. Donahue, N. Panagia, (Cambridge: Cambridge University Press), p. 113.Google Scholar
  52. Goldhaber, G., et al. 1997, in:Thermonuclear Supernovae, (eds.) P. Ruiz-Lapuente, R. Canal, J. Isern, (Dordrecht: Kluwer), p. 777.Google Scholar
  53. Goodwin, S. P., Gribbin., Hendry, M. A. 1997, preprint (astro-ph/9704289).Google Scholar
  54. Gratton, R. G., Fusi Pecci, F., Carretta, E., Clementini, G., Corsi, C. E., Lattanzi, M. 1997, preprint.Google Scholar
  55. Hamuy, M., Phillips, M. M., Suntzeff, N. B., Schommer, R. A., Maza, J., Aviles, R. 1996,Astr. J.,112, 2398.CrossRefADSGoogle Scholar
  56. Hawkins, M. R. S., Veron, P. 1995,Mon. Not. R. astr. Soc.,275, 1102.ADSGoogle Scholar
  57. Hawkins, M. R. S., Veron, P. 1996,Mon. Not. R. astr. Soc.,281, 348.ADSGoogle Scholar
  58. Herbig, T., Lawrence, C. R., Readhead, A. C. S. 1995,Astrophys. J.,449, L5.CrossRefADSGoogle Scholar
  59. Hjorth, J., Tanvir, N. R. 1997,Astrophys. J., submitted (astro-ph/9701025).Google Scholar
  60. Höflich, P., Khokhlov, A. 1996,Astrophys. J.,457, 500.CrossRefADSGoogle Scholar
  61. Holzapfel, W. L. et al. 1997,Astrophys. J.,480, 449.CrossRefADSGoogle Scholar
  62. Hubble, E. 1929,Proc. Nat. Acad. Sci.,15, 168.CrossRefADSGoogle Scholar
  63. Hubble, E., Humason, M. L. 1931,Astrophys. J.,74, 43.CrossRefADSGoogle Scholar
  64. Hughes, S. M. G. 1996, private communication.Google Scholar
  65. Humason, M. L., Mayall, N. U., Sandage, A. R. 1956,Astr. J.,56, 97.CrossRefADSGoogle Scholar
  66. Jacoby, G. H., Ciardullo, R., Ford, H. C. 1990,Astrophys. J.,356, 332.CrossRefADSGoogle Scholar
  67. Jerjen, H. 1995, Ph. D. Thesis, Univ. Basel.Google Scholar
  68. Jerjen, H., Tammann, G. A. 1993,Astr. Astrophys.,276, 1.ADSGoogle Scholar
  69. Jones, M. 1994,Astrophys. Lett. Comm., in press.Google Scholar
  70. Keeton, C. R., Kochanek, C. S. 1997, preprint.Google Scholar
  71. Kennicutt, R. C, Freedman, W. L., Mould, J. R. 1995,Astr. J.,110, 1476.CrossRefADSGoogle Scholar
  72. Kochanek, C. S. 1997, preprint.Google Scholar
  73. Kowal, C. T,1968,Astr. J.,73, 1021.CrossRefADSGoogle Scholar
  74. Kundic, T., Cohen, J. G., Blanford, R. D., Lubin, L. M. 1997, preprint (astroph/9704109)Google Scholar
  75. Labini, F. S., Pietronero, L. 1996Astrophys. J.,469, 26.CrossRefADSGoogle Scholar
  76. Lasenby, A. N., Hancock, S. 1995, in:Current Topics in Astrofundamental Physics: The Early Universe, (eds.) N. Sanchez, A. Zichichi, (Dordrecht: Kluwer Academic Publishers), p. 327.Google Scholar
  77. Lasenby, A. N., Jones, M. E. 1997, in:The Extragalactic Distance Scale, (eds.) M. Livio, M. Donahue, N, Panagia, (Baltimore: STScI), p. 76.Google Scholar
  78. Lauer, T. R., Postman, M. 1992,Astrophys. J.,400, L47.CrossRefADSGoogle Scholar
  79. Leibundgut, B., et al. 1996,Astrophys. J.,466, L21.CrossRefADSGoogle Scholar
  80. Lilly, S. J., Longair, M. S. 1984,Mon. Not. R. astr. Soc.,211, 833.ADSGoogle Scholar
  81. Lilly, S. J., Longair, M. S., Allington-Smith, J. R. 1985,Mon. Not. R. astr. Soc.,215, 37.ADSGoogle Scholar
  82. Lineweaver, C. H. 1997, preprint (astro-ph/9702042).Google Scholar
  83. Livio, M. 1997, in:The Extragalactic Distance Scale, (eds.) M. Livio, M. Donahue, N. Panagia, (Cambridge: Cambridge University Press), p. 186.Google Scholar
  84. Longair, M. S. 1995, in:The Deep Universe, (eds.) B. Binggeli, R. Buser, (Berlin: Springer), p.350–360.Google Scholar
  85. Madore, B. F., Freedman, W. L. 1997,Mon. Not. R. astr. Soc., in press.Google Scholar
  86. Marcaide, J. M. et al. 1995,Nature,373, 74.CrossRefADSGoogle Scholar
  87. Marzke, R. O., Geller, M. J, da Costa, L. N., Huchra, J. P. 1995,Astr. J.,110, 477.CrossRefADSGoogle Scholar
  88. Mazzitelli, I, D’Antona, F., Caloi, V. 1995,Astr. Astrophys.,302, 382.ADSGoogle Scholar
  89. McHardy, I. M., Stewart, G. C, Edge, A. C., Cooke, B. A., Yamashita, K., Hatsukade, I. 1990,Mon. Not. R. astr. Soc.,242, 215.ADSGoogle Scholar
  90. Meisenheimer, K., et al. 1997, in:The Early Universe with VLT, ed. J. Bergeron, Garching: ESO, p. 165.Google Scholar
  91. Mendez, R. H., Kudritzki, R. P., Ciardullo, R., Jacoby, G. H. 1993,Astr. Astrophys.,275, 534.ADSGoogle Scholar
  92. Mirabel, I. F. 1997, Talk presented at the 8th Marcel Grossmann Symposium, Jerusalem.Google Scholar
  93. Miyoshi, M. et al. 1995,Nature,373, 127.CrossRefADSGoogle Scholar
  94. Mould, J. R. et al. 1995,Astrophys. J.,449, 413.CrossRefADSGoogle Scholar
  95. Myers, S. T. Baker, J. E., Readhead, A. C. S., Leitch, E. M. 1997, preprint (astroph/9703123)Google Scholar
  96. Nair, S. 1995, preprint.Google Scholar
  97. Narlikar, J. V., Arp, H. C. 1997,Astrophys. J.,482, L119.CrossRefADSGoogle Scholar
  98. Nugent, P., Phillips, M. M., Baron, E., Branch, D., Hauschildt, P. 1995,Astrophys. J.,455, L147.CrossRefADSGoogle Scholar
  99. Ohta K., Yamada, T., Nakanishi, K., Kohno, K., Akiyama, M., Kawabe, R. 1996,Nature,382, 426.CrossRefADSGoogle Scholar
  100. Omont, A., Petitjean, P, Guilloteau, S., McMakon, R. G., Solomon, P. M., Pecontal, E. 1997,Nature,382, 428.CrossRefADSGoogle Scholar
  101. Pahre, M. A., Djorgovski, de Carvalho, R. R. 1996,Astrophys. J.,456, L79.CrossRefADSGoogle Scholar
  102. Panagia, N. et al. 1996, in:The Extragalactic Distance Scale, (eds.) M. Livio, M. Donahue, N. Panagia, (Baltimore: STScI), p. 54.Google Scholar
  103. Peebles, P. J. E. 1993,Principles of Physical Cosmology, (Princeton: Princeton University Press).Google Scholar
  104. Perlmutter, S.et al. 1996, preprint.Google Scholar
  105. Pont, F., Mayor, M., Turon, C., VandenBerg, D. A. 1997,Astr. Astrophys., in press.Google Scholar
  106. Postman, M. 1997, in:The Extragalactic Distance Scale, (eds.) M. Livio, M. Donahue, N. Panagia, (Cambridge: Cambridge University Press), p. 49.Google Scholar
  107. Pozzetti, L., Bruzual, A., Zarnorani, G. 1996,Mon. Not. R. astr. Soc.,281, 953.ADSGoogle Scholar
  108. Prantzos, N., Tosi, M., von Steiger, R. (eds.) 1997, ISSI Workshop on Primordial Nuclei and their Galactic Evolution, Berne May 1997, in press.Google Scholar
  109. Pritchet, C. I, van den Bergh, S. 1987,Astrophys. J.,318, 507.CrossRefADSGoogle Scholar
  110. Reid, I. N. 1997, preprint.Google Scholar
  111. Rephaeli, Y. 1995,A. R. A.&A.,33, 541.ADSGoogle Scholar
  112. Rephaeli, Y., Yankovitch, D. 1997,Astrophys. J.,481, L55.CrossRefADSGoogle Scholar
  113. Richer, M. G. 1996,J. Roy. Astron. Soc. Can.,90, 246.ADSGoogle Scholar
  114. Riess, A. G., Press, W. H., Kirshner, R. P. 1996,Astrophys. J.,473, 88.CrossRefADSGoogle Scholar
  115. Rowan-Robinson, M. 1990,Mon. Not. R. astr. Soc.,247, 1.ADSGoogle Scholar
  116. Ruiz-Lapuente, P. 1996, preprint.Google Scholar
  117. Saha, A., Labhardt, L. 1997, in preparation.Google Scholar
  118. Saha, A., Sandage, A., Labhardt, L., Tammann, G. A., Macchetto, F. D., Panagia, N. 1996a,Astrophys. J.,466, 55.CrossRefADSGoogle Scholar
  119. Saha, A., Sandage, A., Labhardt, L., Tammann, G. A., Macchetto, F. D., Panagia, N. 1996b,Astrophys. J. Suppl.,107, 693.CrossRefADSGoogle Scholar
  120. Saha, A., Sandage, A., Labhardt, L., Tammann, G. A., Macchetto, F. D., Panagia, N. 1997, preprint.Google Scholar
  121. Salaris, M., Degl’Innocenti, S., Weiss, A. 1997,Astrophys. J.,479, 665.CrossRefADSGoogle Scholar
  122. Sandage, A. 1972,Astrophys. J.,178, 1.CrossRefADSGoogle Scholar
  123. Sandage, A. 1975,Astrophys. J.,202, 563.CrossRefADSGoogle Scholar
  124. Sandage, A. 1978,Astr. J.,83, 904.CrossRefADSGoogle Scholar
  125. Sandage, A. 1993a,Astr. J.,106, 703.CrossRefADSGoogle Scholar
  126. Sandage, A. 1993b,Astr. J.,106, 719.CrossRefADSGoogle Scholar
  127. Sandage, A. 1993c,Astrophys. J.,402, 3.CrossRefADSGoogle Scholar
  128. Sandage, A. 1993d,Astrophys. J.,404, 419.CrossRefADSGoogle Scholar
  129. Sandage, A. 1994a,Astrophys. J.,430, 1.CrossRefADSGoogle Scholar
  130. Sandage, A. 1994b,Astrophys. J.,430, 13.CrossRefADSGoogle Scholar
  131. Sandage, 1995, in:The Deep Universe, (eds.) B. Binggeli, R. Buser, (Berlin: Springer), p. 1.Google Scholar
  132. Sandage, A. 1996a,Astr. J.,111, 1.CrossRefADSGoogle Scholar
  133. Sandage, A. 1996b,Astr. J.,111, 18.CrossRefADSGoogle Scholar
  134. Sandage, A. 1996c,BAAS,28, 52.Google Scholar
  135. Sandage, A., Bedke, J. 1988,Atlas of Galaxies, Washington, D. C.: NASA.Google Scholar
  136. Sandage, A., Hardy, E. 1973,Astrophys. J.,183, 743.CrossRefADSGoogle Scholar
  137. Sandage, A., Kristian, J., Westphal, J. E. 1976,Astrophys. J.,205, 688.CrossRefADSGoogle Scholar
  138. Sandage, A., Perelmuter, J.-M. 1991,Astrophys. J.,370, 455.CrossRefADSGoogle Scholar
  139. Sandage, A., Saha, A., Tammann, G. A., Labhardt, L., Panagia, N., Macchetto, F. D. 1996,Astrophys. J.,460, L15.CrossRefADSGoogle Scholar
  140. Sandage, A., Tammann, G. A. 1990,Astrophys. J.,365, 1.CrossRefADSGoogle Scholar
  141. Sandage, A., Tammann, G. A. 1995,Astrophys. J.,446, 1.CrossRefADSGoogle Scholar
  142. Sandage, A., Tammann, G. A. 1996,Astrophys. J.,464, L51.CrossRefADSGoogle Scholar
  143. Sandage, A., Tammann, G. A. 1997a, in:Critical Dialogues in Cosmology, ed. N. Turok, in press.Google Scholar
  144. Sandage, A., Tammann, G. A. 1997b,Mon. Not. R. astr. Soc., in press.Google Scholar
  145. Sandage, A., Tammann, G. A., Federspiel, M. 1995,Astrophys. J.,452, 1.CrossRefADSGoogle Scholar
  146. Sandage, A., Tammann, G. A., Hardy, E. 1972,Astrophys. J.,172, 253.CrossRefADSGoogle Scholar
  147. Sargent, W. L. W. 1997, Talk presented at the ISSI Workshop on Primordial Nuclei and Galactic Evolution, Berne, May 1997.Google Scholar
  148. Sasselow, D. D.et al. 1997,Astr. Astrophys., in press.Google Scholar
  149. Schmidt, M. 1993,J. Roy. astr. Society Canada,87, 325.Google Scholar
  150. Schmidt, B. P. et al. 1994,Astrophys. J.,432, 42.CrossRefADSGoogle Scholar
  151. Segretain, L., Chabrier, G., Hernanz, M., Garcia-Berro, E., Isern, J., Mochkovitch, R. 1994,Astrophys. J.,434, 641.CrossRefADSGoogle Scholar
  152. Sekiguchi, M., Fukugita, M. 1997, preprint.Google Scholar
  153. Shi, X. 1995,Astrophys. J.,446, 637.CrossRefADSGoogle Scholar
  154. Smoot, G. F.et al. 1991,Astrophys. J.,371, LI.CrossRefGoogle Scholar
  155. Soffner, T. et al. 1996,Astr. Astrophys.,306, 9.ADSGoogle Scholar
  156. Sparks, W. B. 1994,Astrophys. J.,433, 19.CrossRefADSGoogle Scholar
  157. Stothers, R. B. 1988,Astrophys. J.,329, 712.CrossRefADSGoogle Scholar
  158. Tammann, G. A. 1979, in:Astronomical Uses of the Space Telescope, (eds.) F, Macchetto, F. Pacini, M. Tarenghi, (Geneva: ESA/ESO), p. 329.Google Scholar
  159. Tammann, G. A. 1982, in:Supernovae: A Survey of Current Research, (eds.) M. J. Rees, R. J. Stoneham, (Dordrecht: Reidel), p. 371.Google Scholar
  160. Tammann, G. A. 1988, inThe Extragalactic Distance Scale, eds. S. van den Bergh, C. J. Pritchet, (San Francisco: Soc. Pacific), 282.Google Scholar
  161. Tammann, G. A. 1993, in:Planetary Nebulae, IAU Symp. 155, (eds.) R. Weinberger, A. Acker, (Dordrecht: Kluwer), 515.Google Scholar
  162. Tammann, G. A., Federspiel, M. 1997, in:The Extragalactic Distance Scale, (eds.) M. Livio, M. Donahue, N. Panagia, (Cambridge: Cambridge University Press), p. 137.Google Scholar
  163. Tammann, G. A., Labhardt, L. 1997, in:Relativistic Astrophysics, (eds.) H. Riffertet al. (Braunschweig: Vieweg), in press.Google Scholar
  164. Tammann, G. A., Sandage, A. 1985,Astrophys. J.,294, 81.CrossRefADSGoogle Scholar
  165. Taylor, J. H. 1993, in:Proceedings 13th International Conference on General Relativity and Gravitation, (eds.) R. J. Gleiser et al. (Bristol: Institute of Physics), p. 287.Google Scholar
  166. Teerikorpi, P. 1987,Astr. Astrophys.,173, 39.ADSGoogle Scholar
  167. Teerikorpi, P. 1990,Astr. Astrophys.,234, 1.ADSGoogle Scholar
  168. Theureau, G.,et al. 1996,Astr. Astrophys., inpress.Google Scholar
  169. Thomsen, B., Baum, W. A., Hammergren, M., Worthey, G. 1997,Astrophys. J. L, in press.Google Scholar
  170. Tonry, J. L., Blakeslee, J. P., Ajhar, E. A., Dressler, A. 1997,Astrophys. J.,475, 399.CrossRefADSGoogle Scholar
  171. Truran, J. L. 1997, in:The Extragalactic Distance Scale, (eds.) M. Livio, M. Donahue, N. Panagia, (Cambridge: Cambridge University Press), p. 18.Google Scholar
  172. van den Bergh, S. 1960a,Astrophys. J.,131, 215.CrossRefADSGoogle Scholar
  173. van den Bergh, S. 1960b,Astrophys. J.,131, 558.CrossRefADSGoogle Scholar
  174. Whitmore, B. C. 1997, in:The Extragalactic Distance Scale, (eds.) M. Livio, M. Donahue, N. Panagia, (Cambridge: Cambridge University Press), p. 254.Google Scholar
  175. Whitmore, B. C., et al. 1995,Astrophys. J.,454, L73.CrossRefADSGoogle Scholar
  176. Wood, M. A. 1992,Astrophys. J.,386, 539.CrossRefADSGoogle Scholar
  177. Yahil, A., Tammann, G. A., Sandage, A. 1977,Astrophys. J.,217, 903.CrossRefADSGoogle Scholar

Copyright information

© Indian Academy of Sciences 1997

Authors and Affiliations

  • G. A. Tammann
    • 1
  1. 1.Astronomisches Institut der Universität BaselBinningenSwitzerland

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