%0 Generic %1 Alexander2007 %A Alexander, Stephon %A Biswas, Tirthabir %A Notari, Alessio %A Vaid, Deepak %D 2007 %K Dark Energy Supernovae Void %T Local Void vs Dark Energy: Confrontation with WMAP and Type Ia Supernovae %U http://arxiv.org/abs/0712.0370 %X It is now a known fact that if we happen to be living in the middle of a large underdense region, then we will observe an "apparent acceleration", even when any form of dark energy is absent. In this paper, we present a "Minimal Void" scenario, i.e. a "void" with minimal underdensity contrast (of about -0.4) and radius (~ 200-250 Mpc/h) that can, not only explain the supernovae data, but also be consistent with the 3-yr WMAP data. We also discuss consistency of our model with various other measurements such as Big Bang Nucleosynthesis, Baryon Acoustic Oscillations and local measurements of the Hubble parameter, and also point out possible observable signatures.

@misc{Alexander2007, abstract = { It is now a known fact that if we happen to be living in the middle of a large underdense region, then we will observe an "apparent acceleration", even when any form of dark energy is absent. In this paper, we present a "Minimal Void" scenario, i.e. a "void" with minimal underdensity contrast (of about -0.4) and radius (~ 200-250 Mpc/h) that can, not only explain the supernovae data, but also be consistent with the 3-yr WMAP data. We also discuss consistency of our model with various other measurements such as Big Bang Nucleosynthesis, Baryon Acoustic Oscillations and local measurements of the Hubble parameter, and also point out possible observable signatures. }, added-at = {2010-12-10T13:24:54.000+0100}, author = {Alexander, Stephon and Biswas, Tirthabir and Notari, Alessio and Vaid, Deepak}, biburl = {https://www.bibsonomy.org/bibtex/2174ba0c379d1dbe2c15e6fbc35736a13/ad4}, description = {Local Void vs Dark Energy: Confrontation with WMAP and Type Ia Supernovae}, interhash = {39b724f274d2ba81438e152f73a88313}, intrahash = {174ba0c379d1dbe2c15e6fbc35736a13}, keywords = {Dark Energy Supernovae Void}, note = {cite arxiv:0712.0370 Comment: Minor numerical errors and typos corrected, references added}, timestamp = {2010-12-10T13:24:54.000+0100}, title = {Local Void vs Dark Energy: Confrontation with WMAP and Type Ia Supernovae}, url = {http://arxiv.org/abs/0712.0370}, year = 2007 }