Nature of the E-B decomposition of CMB polarization - art. no. 103001

Authors
Citation
M. Zaldarriaga, Nature of the E-B decomposition of CMB polarization - art. no. 103001, PHYS REV D, 6410(10), 2001, pp. 3001
Citations number
18
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
0556-2821 → ACNP
Volume
6410
Issue
10
Year of publication
2001
Database
ISI
SICI code
0556-2821(20011115)6410:10<3001:NOTEDO>2.0.ZU;2-P
Abstract
We present a derivation of the transformation between the Q and U Stokes pa rameters and the E and B scalar and pseudoscalar fields. We emphasize the g eometrical properties that such transformation must satisfy. We present the E and B decompositions of some simple maps and of a model for a supernova remnant. We discuss the relative amplitudes of the E and B components, and argue that for generic random maps E and B should have roughly the same amp litudes.