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CMB anisotropy induced by cosmic strings on angular scales > approximately 15-minutes

Bruce Allen
(
- Wisconsin U., Milwaukee
)
,
R.R. Caldwell
(
- Pennsylvania U.
)
,
Scott Dodelson
(
- Fermilab
)
,
L. Knox
(
- Canadian Inst. Theor. Astrophys.
)
,
E.P.S. Shellard
(
- Cambridge U.
)

Apr, 1997

4 pages

Published in:

Phys.Rev.Lett. 79 (1997) 2624-2627

e-Print:

astro-ph/9704160 [astro-ph]

DOI:

10.1103/PhysRevLett.79.2624

Report number:

FERMILAB-PUB-97-334-A

View in:

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Abstract: (arXiv)

We have computed an estimate of the angular power spectrum of the Cosmic Microwave Background (CMB) induced by cosmic strings on angular scales

> 15'

, using a numerical simulation of a cosmic string network; and decomposed this pattern into scalar, vector, and tensor parts. We find no evidence for strong acoustic oscillations in the scalar anisotropy but rather a broad peak. The anisotropies from vector modes dominate except on very small angular scales while the tensor anisotropies are sub-dominant on all angular scales. The anisotropies generated after recombination are even more important than in adiabatic models. We expect that these qualitative features are robust to the varying of cosmological parameters, a study which has not yet been done.

astrophysics: string
cosmic background radiation: anisotropy
cosmic radiation: spectrum
numerical calculations

References(20)

Figures(0)

Anisotropies in the cosmic microwave background: Theory

Scott Dodelson
(
- Fermilab
)

- ,
- In *Chicago 1996, Relativistic astrophysics and cosmology* 68-77
•
e-Print:
- astro-ph/9702134

Toward understanding CMB anisotropies and their implications

Wayne Hu
(
)
,
Naoshi Sugiyama
(
- UC, Berkeley, Astron. Dept. and
- UC, Berkeley and
- UC, Berkeley, CfPA and
- Tokyo U.
)

- Phys.Rev.D 51 (1995) 2599-2630
•
e-Print:
- astro-ph/9411008
•
DOI:
- 10.1103/PhysRevD.51.2599

The Doppler peaks from cosmic texture

R.G. Crittenden
(
- Princeton U.
)
,
Neil Turok
(
- Princeton U.
)

- Phys.Rev.Lett. 75 (1995) 2642-2645
•
e-Print:
- astro-ph/9505120
•
DOI:
- 10.1103/PhysRevLett.75.2642

Causality and the microwave background

Andreas Albrecht
(
- Imperial Coll., London
)
,
David Coulson
(
- Pennsylvania U.
)
,
Pedro Ferreira
(
- Imperial Coll., London
)
,
Joao Magueijo
(
- Cambridge U.
)

- Phys.Rev.Lett. 76 (1996) 1413-1416
•
e-Print:
- astro-ph/9505030
•
DOI:
- 10.1103/PhysRevLett.76.1413

Causality and the Doppler peaks

Neil Turok
(
- Cambridge U.
)

- Phys.Rev.D 54 (1996) R3686-R3689
•
e-Print:
- astro-ph/9604172
•
DOI:
- 10.1103/PhysRevD.54.R3686

Distinguishing causal seeds from inflation

Wayne Hu
(
- Princeton, Inst. Advanced Study
)
,
David N. Spergel
(
- Princeton U. Observ. and
- Maryland U.
)
,
Martin J. White
(
- Chicago U., EFI
)

- Phys.Rev.D 55 (1997) 3288-3302
•
e-Print:
- astro-ph/9605193
•
DOI:
- 10.1103/PhysRevD.55.3288

Cosmic Strings and Domain Walls

Alexander Vilenkin
(
- Tufts U.
)

- Phys.Rept. 121 (1985) 263-315
•
DOI:
- 10.1016/0370-1573(85)90033-X

- Rept.Prog.Phys. 58 47

Doppler peaks from active perturbations

Joao Magueijo
(
- Cambridge U.
)
,
Andreas Albrecht
(
- Imperial Coll., London
)
,
David Coulson
(
- Pennsylvania U.
)
,
Pedro Ferreira
(
- UC, Berkeley, CfPA
)

- Phys.Rev.Lett. 76 (1996) 2617-2620
•
e-Print:
- astro-ph/9511042
•
DOI:
- 10.1103/PhysRevLett.76.2617

The Structure of Doppler peaks induced by active perturbations

Joao Magueijo
(
- Cambridge U.
)
,
Andreas Albrecht
(
- Imperial Coll., London
)
,
Pedro Ferreira
(
- UC, Berkeley, CfPA
)
,
David Coulson
(
- Pennsylvania U.
)

- Phys.Rev.D 54 (1996) 3727-3744
•
e-Print:
- astro-ph/9605047
•
DOI:
- 10.1103/PhysRevD.54.3727

Large angular scale CMB anisotropy induced by cosmic strings

Bruce Allen
(
- Wisconsin U., Milwaukee
)
,
R.R. Caldwell
(
- Cambridge U.
)
,
E.P.S. Shellard
(
- Cambridge U.
)
,
A. Stebbins
(
- Fermilab
)
,
S. Veeraraghavan
(
- NASA, Goddard
)

- Phys.Rev.Lett. 77 (1996) 3061-3065
•
e-Print:
- astro-ph/9609038
•
DOI:
- 10.1103/PhysRevLett.77.3061

A General, Gauge Invariant Analysis of the Cosmic Microwave Anisotropy

L.F. Abbott
(
- Brandeis U.
)
,
Robert K. Schaefer
(
- NASA, Goddard
)

- Astrophys.J. 308 (1986) 546
•
DOI:
- 10.1086/164525

Microwave anisotropies in the light of COBE

Scott Dodelson
(
- Fermilab
)
,
Jay M. Jubas
(
- MIT, LNS
)

- Phys.Rev.Lett. 70 (1993) 2224-2227
•
e-Print:
- astro-ph/9301002
•
DOI:
- 10.1103/PhysRevLett.70.2224

Testing inflation with the cosmic microwave background

Scott Dodelson
(
- Fermilab
)
,
Lloyd Knox
(
- Chicago U., EFI
)
,
Edward W. Kolb
(
- Fermilab and
- Chicago U., Astron. Astrophys. Ctr. and
- Chicago U., EFI and
- Chicago U.
)

- Phys.Rev.Lett. 72 (1994) 3444-3447
•
e-Print:
- astro-ph/9403004
•
DOI:
- 10.1103/PhysRevLett.72.3444

Cosmic string evolution: a numerical simulation

Bruce Allen
(
- Wisconsin U., Milwaukee
)
,
E.P.S. Shellard
(
- MIT, LNS
)

- Phys.Rev.Lett. 64 (1990) 119-122
•
DOI:
- 10.1103/PhysRevLett.64.119

Large scale microwave anisotropy from gravitating seeds

- Astrophys.J.Lett. 395 (1992) L55-L58
•
DOI:
- 10.1086/186487

Structure in the COBE differential microwave radiometer first year maps

COBE

Collaboration

•

George F. Smoot

et al.

- Astrophys.J.Lett. 396 (1992) L1-L5
•
DOI:
- 10.1086/186504

The Implications of the COBE DMR results for cosmic strings

David P. Bennett
(
- LLNL, Livermore
)
,
Albert Stebbins
(
- Fermilab
)
,
Francois R. Bouchet
(
- Paris, Inst. Astrophys.
)

- Astrophys.J.Lett. 399 (1992) L5-L8
•
e-Print:
- hep-ph/9206233
•
DOI:
- 10.1086/186592

COBE versus cosmic strings: An Analytical model

Leandros Perivolaropoulos
(
- Harvard-Smithsonian Ctr. Astrophys.
)

- Phys.Lett.B 298 (1993) 305-311
•
e-Print:
- hep-ph/9208247
•
DOI:
- 10.1016/0370-2693(93)91825-8

Pi in the sky? Microwave anisotropies from cosmic defects

David Coulson
(
- Princeton U. and
- Imperial Coll., London
)
,
Pedro Ferreira
(
- Imperial Coll., London
)
,
Paul Graham
(
- Princeton U.
)
,
Neil Turok
(
- Princeton U.
)

- Nature 368 (1994) 27
•
e-Print:
- hep-ph/9310322
•
DOI:
- 10.1038/368027a0