Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2010-04-19
Prog. Theor. Phys. 124 (2010), 163-180
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
18 pages in the PTPTeX style, no figure, to be published in PTP
Scientific paper
10.1143/PTP.124.163
The local void model has recently attracted considerable attention because it can explain the apparent accelerated expansion of the present universe without introducing dark energy. However, in order to justify this model as an alternative to the standard $\Lambda$CDM cosmology, the model should be tested by various observations, such as the CMB temperature anisotropy, besides the distance-redshift relation of SNIa. For this purpose, we derive analytic formulae for the dipole and quadrupole moments of the CMB temperature anisotropy that hold for any spherically symmetric universe model and can be used to compare consequences of such a model with observations of the CMB temperature anisotropy rigorously. We check that our formulae are consistent with the numerical studies previously made for the CMB temperature anisotropy in the void model. We also update the constraints concerning the location of the observers in the void model by applying our analytic dipole formula with the latest WMAP data.
Ishibashi Akihiro
Kodama Hideo
Saito Keiki
No associations
LandOfFree
Analytic formulae for the off-center CMB anisotropy in a general spherically symmetric universe does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Analytic formulae for the off-center CMB anisotropy in a general spherically symmetric universe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analytic formulae for the off-center CMB anisotropy in a general spherically symmetric universe will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-59198