Termination shock thermal processes as a possible source for the CMB low-order multipole anomalies: updated with observations

Autor:	Sharpe, H. N.
Rok vydání:	2009
Předmět:	Astrophysics - Cosmology and Nongalactic Astrophysics Astrophysics - Solar and Stellar Astrophysics
Druh dokumentu:	Working Paper
Popis:	We discuss the possibility that the observed low-order multipole features of the cosmic microwave background radiation (CMB) all originate in the termination shock (TS) region of the heliosheath that surrounds the solar system. If the intrinsic CMB spectrum is assumed to be a pure monopole (2.73K) then thermodynamic processes occurring within the plasma region of the TS could imprint the observed power spectrum of the low-order multipoles and their alignment (the so-called "axis of evil") onto this background isotropic CMB. Conditions are outlined for the geometric shape of the TS region. A key requirement of this model is that the TS plasma be characterized as an optically thin graybody with non-LTE perturbations. Data from the ongoing Voyager missions is critical to this study. We present four significant recent observations in support of this ansatz. Comment: 4 pages. Comments Welcomed!
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0906.1752 Zobrazit plný text záznamu View this record from Arxiv