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New Challenges in Cosmology Posed by the Sloan Digital Sky Survey Quasar Data

  • Adrija Banerjee (a1) and Arnab Kumar Pal (a1)


For SDSS quasar data (2005) we have truncated data structure whereas for the survey of 2007 the data is no longer truncated. This calls for development or use of completely different statistical methodology to study the data for the evolution of the same objects like quasars. These different methodologies suggest different interpretation for a particular phenomenon in nature. This leads to the issue of validation of the data. More intriguing and challenging issue crops up as, given all of the data, what can be said about the laws of physics that have been operating over the universe? Over here we have used the concept of Neural Network to model the relationship between redshift and apparent magnitude.



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Abell, G. O. (1958) Astrophys. J.Suppl. 3, 211288
Coles, P. & Lucchin, F., (2002) Cosmology : The Origin and Evolution of Cosmic Structure. 2nd Edition, John Wiley & Sons, Ltd. p.77
Datta, S., Roy, S., Roy, M., & Moles, M. (1998), Phys. Rev. A, 58, 720
Efron, B. & Petrosian, V. (1992) Astrophys. J. 399 345352
Hoessel, J. G., Gunn, J. E. & Thuan, T.X. (1980) Astrophys., 241, 486492
Korany, D. M. & Strauss, M. A. (1996) Testing the Hubble Law with the IRAS 1.2 Jy redshift Survey.
McLaren, C., Wagstaff, M., Brittegram, G., & Jacobs, A. (1991) Biometrics 47, 607708
Roy, S., Datta, S., Roy, M., & Kafatos, M. (2006) Statistical Analysis of Quasar Data and Hubble Law, arXiv:astro-ph/0605356v1
Roy, S., Kafatos, M., & Datta, S. (1999), Phys. Rev. A, 60, 273
Segal, I. E. & Nicoll, J. F. (1992) Proc. Nat. Acad. Sci. (USA) 89, 1166911672
Veron-Cetty, M. P. & Veron, P. (2001) A&A, 374, 92
Wolf, E. & James, D. F. V. (1996), Rep. Prog. Phys., 59, 771
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Proceedings of the International Astronomical Union
  • ISSN: 1743-9213
  • EISSN: 1743-9221
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
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