[1] C. Croft, H. Weinberg, N. Katz, and L. Hernquist; “Recovery of the Power Spectrum of Mass Fluctuations from Observations of the Ly alpha Forest”; Astrophysical Journal 495 (1998) 44.
[2] C. Pichon, L. Vergely, E. Rollinde, S. Colombi, and P. Petitjean; “Inversion of the Lyman α forest: three-dimensional investigation of the intergalactic medium”; Monthly Notices of the Royal Astronomical Society 326 (2001) 597-620.
[3] P. McDonald, U. Seljak, R. Cen, D. H. Weinberg, S. Burles, D. P. Schneider, D. J. Schlegel, N. A. Bahcall, J. Brinkmann, Z. Ivezic, S. Kent, and D. E. Vanden Berk; “the Linear Theory Power Spectrum from the Lyα Forest in the Sloan Digital Sky Survey”; The Astrophysical Journal 635 (2005) 761-783.
[4] P. Petitjean and C. Ledoux; “Damped Lyman α Systems”; Astrophysics and Space Science 265 (1999) 483-486.
[5] T. Theuns; “Numerical simulations of quasar absorbers, Probing Galaxies through Quasar Absorption Lines”, IAU Colloquium Proceedings of the International Astronomical Union 199, held March 14-18 2005, Shanghai, People's Republic of China, edited by Peter R. Williams, Cheng- Gang Shu and Brice Menard. Cambridge: Cambridge University Press (2005) 185-204.
[6] A. Aghaee, P. Petitjean, R. Srianand, S. Stalin, and R. Guimarães; “Determination of the Mean HI Absorption of the Intergalactic Medium”; Journal of Astrophysics and Astronomy 31 (2010) 59-79.
[7] P. Schneider, M. Schmidt, and E. Gunn; “PC 1247 + 3406 - an optically selected quasar with a redshift of 4.897”; Astronomical Journal 102 (1991) 837-840.
[8] H. Press and B. Rybicki; “Properties of High-Redshift Lyman-Alpha Clouds. II. Statistical Properties of the Clouds”; Astrophysical Journal 418 (1993) 585
[9] S. Kim, J. Bolton, M. Viel, G. Haehnelt, and R. Carswell; “An improved measurement of the flux distribution of the Lyα forest in QSO absorption spectra: the effect of continuum fitting, metal contamination and noise properties”; Monthly Notices of the Royal Astronomical Society 382 (2007) 1657-1674.
[10] M. Bernardi, R. K. Sheth, M. SubbaRao, G.T. Richards, S. Burles, A.J Connolly, J. Frieman, R. Nichol, J. Schaye, D.P. Schneider, et al; “A Feature at z~3.2 in the Evolution of the Lyα Forest Optical Depth”, The Astronomical Journal 125 (2003) 32-52.
[11] U. Seljak and R. Cen; “Precision cosmology from the Lyman α forest: power spectrum and bispectrum”; Monthly Notices of the Royal Astronomical Society 344 (2003) 776-788.
[12] B. Aracil, P. Petitjean, C. Pichon, and J. Bergeron; “Metals in the intergalactic medium”; Astronomy and Astrophysics 419 (2004) 811-819.
[13] A. Songaila; “the Evolution of the Intergalactic Medium Transmission to Redshift 6”; The Astronomical Journal 127 (2004) 2598-2603.
[14] D. Tytler, D. Kirkman, M. O'Meara, N. Suzuki, A. Orin, and D. Lubin; “Mean amount of Absorption from the Intergalactic Medium”; American Astronomical Society Meeting 205, #129.06; Bulletin of the American Astronomical Society 36 (2004) 1557.
[15] D. Kirkman et al; “The HI opacity of the intergalactic medium at redshifts 1.6 Monthly Notices of the Royal Astronomical Society 360 (2005) 1373-1380.
[16] A. Dall’Aglio, L. Wisotzki, and G. Worseck; “the UV background photoionization rate at 2.31484 (2009) 1-14.
[17] N. Suzuki, D. Tytler, M. John, and D. Lubin; “Predicting QSO Continua in the lyα Forest”; Astrophysical Journal 618 (2005) 592-600.
[18] J. Francis, C. Hewett, B. Foltz, and H. Chaffee; “an objective classification scheme for QSO spectra”; Astrophysical Journal 398 (1992) 476-490.
[19] G. Lee, N. Suzuki, and N. Spergel; “Mean-flux-regulated Principal Component Analysis Continuum Fitting of Sloan Digital Sky Survey Lyα Forest Spectra”; The Astronomical Journal 143 (2011) 51.
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