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Constraining Dark Energy from SNIa CMB BAO Observations

Constraining Dark Energy from SNIa CMB BAO Observations. Chien-Wen Chen. Distance Measures. Comoving distance Luminosity distance Angular diameter distance Comoving volume. http://www.astro.ufl.edu/~guzman/ast7939/projects/project01.html.

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Constraining Dark Energy from SNIa CMB BAO Observations

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  1. Constraining Dark Energy from SNIa CMB BAO Observations Chien-Wen Chen

  2. Distance Measures • Comoving distance • Luminosity distance • Angular diameter distance • Comoving volume http://www.astro.ufl.edu/~guzman/ast7939/projects/project01.html http://www.mpifr-bonn.mpg.de/staff/hvoss/DiplWeb/DiplWebap1.html

  3. Distance Modulus SNIa http://braeburn.pha.jhu.edu/~ariess/R06/Davis07_R07_WV07.dat

  4. CMB E. Komatsu et al. 08 WMAP-Five-Year

  5. DA = rs / θ = rs lfirst / π E. Komatsu et al. 08 WMAP-Five-Year Ned Wright, UCLA

  6. BAO r2 Eisenstein, D. J., et al. 2005, ApJ, 633, 560 SDSS

  7. Wmh2 = 0.12 Wmh2 = 0.13 Wmh2 = 0.14 Eisenstein, D. J., et al. 2005, ApJ, 633, 560 SDSS

  8. SNIa (192)+ CMB (WMAP-5year, R) + BAO (SDSS-05, A) wa 95.4 % 68.3 % w0 w = w0 + wa (1-a) w0 = -1.11 (+0.13 -0.11) wa = 0.67 (+0.43 -0.66) Ωm = 0.27 (+0.02 -0.02)

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