Books > Science & Mathematics > Physics > Relativity physics
|
Buy Now
Gauge Theory and the Early Universe (Paperback, Softcover reprint of the original 1st ed. 1988)
Loot Price: R1,588
Discovery Miles 15 880
|
|
Gauge Theory and the Early Universe (Paperback, Softcover reprint of the original 1st ed. 1988)
Series: NATO Science Series C, 248
Expected to ship within 10 - 15 working days
|
P. de Bernardis, S. Masi , G. Moreno Dipartimento di Fisica,
Universita' "La Sapienza" 00184 Roma Italy ABSTRACT. Anisotropy
measurement techniques and results are reviewed, with special
attention given to experimental problems. The cosmological
relevance of the dipole anisotropy, the only anisotropy truly
detected in the Cosmic Background Radiation, is discussed. 1.
INTRODUCTION Anisotropy of the Cosmic Background Radiation at 2.7 K
(CBR hereafter) is a cosmological topic with a wide range of
applications. In order to define anisotropy let us consider fig. 1
a, where the celestial sphere is shown with two beams A and B, with
beamwidth 0 and angular separation e. We define the anisotropy of
CBR at angular scale e in terms of the difference i'2,1 between the
CBR flux I(ex,u) measured in the two beams. At small angular scales
(e ) a "stochastic" approach is preferred, and the anisotropy is
defined as .cJ I = GBP (1) I e where the brackets indicate averages
over the whole celestial sphere. At large angular scales e>l a
deterministic approach is preferred, and the CBR flux I(ex, S) is
expressed as a sum of spherical harmonics (2) I (ex, S) = I ~ aIm Y
(ex, S) lm I,m The alm coefficients give the dipole, quadrupole and
higher order components of the anisotropy. 257 P. Galeotti and D.
N. Schramm (eds.), Gauge Theory and the Early Universe, 257-282.
General
Is the information for this product incomplete, wrong or inappropriate?
Let us know about it.
Does this product have an incorrect or missing image?
Send us a new image.
Is this product missing categories?
Add more categories.
Review This Product
No reviews yet - be the first to create one!
|
You might also like..
|
Email address subscribed successfully.
A activation email has been sent to you.
Please click the link in that email to activate your subscription.