A Probe of primordial gravity waves and vorticity

Kamionkowski, Marc; Kosowsky, Arthur; Stebbins, Albert

doi:10.1103/PhysRevLett.78.2058

A Probe of primordial gravity waves and vorticity

Marc Kamionkowski
(
- Columbia U.
)
,
Arthur Kosowsky
(
- Harvard-Smithsonian Ctr. Astrophys. and
- Harvard U.
)
,
Albert Stebbins
(
- Fermilab
)

Sep, 1996

8 pages

Published in:

Phys.Rev.Lett. 78 (1997) 2058-2061

Published: Mar 17, 1997

e-Print:

astro-ph/9609132 [astro-ph]

DOI:

10.1103/PhysRevLett.78.2058

Report number:

CU-TP-767,
CAL-615,
FERMILAB-PUB-96-327-A

View in:

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Abstract: (arXiv)

A formalism for describing an all-sky map of the polarization of the cosmic microwave background is presented. The polarization pattern on the sky can be decomposed into two geometrically distinct components. One of these components is not coupled to density inhomogeneities. A non-zero amplitude for this component of polarization can only be caused by tensor or vector metric perturbations. This allows unambiguous identification of long-wavelength gravity waves or large-scale vortical flows at the time of last scattering.

cosmic radiation: anisotropy
cosmic background radiation
cosmic radiation: polarization
gravitational radiation
perturbation: tensor
perturbation: vector

References(27)

Figures(0)

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