Weighing the universe with the cosmic microwave background - INSPIRE

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Weighing the universe with the cosmic microwave background

Gerard Jungman
(
- Syracuse U.
)
,
Marc Kamionkowski
(
- Columbia U.
)
,
Arthur Kosowsky
(
- Harvard-Smithsonian Ctr. Astrophys. and
- Harvard U.
)
,
David N. Spergel
(
- Princeton U.
)

Jul, 1995

8 pages

Published in:

Phys.Rev.Lett. 76 (1996) 1007-1010

e-Print:

astro-ph/9507080 [astro-ph]

DOI:

10.1103/PhysRevLett.76.1007

Report number:

CU-TP-703,
SU-4240-614,
POP-629,
CFA-4136

View in:

ADS Abstract Service

reference search190 citations

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Abstract: (arXiv)

Variations in

\Omega

, the total density of the Universe, leave a clear and distinctive imprint on the power spectrum of temperature fluctuations in the cosmic microwave background (CMB). This signature is virtually independent of other cosmological parameters or details of particular cosmological models. We evaluate the precision with which

\Omega

can be determined by a CMB map as a function of sky coverage, pixel noise, and beam size. For example, assuming only that the primordial density perturbations were adiabatic and with no prior information on the values of any other cosmological parameters, a full-sky CMB map at

0.5~\circ

angular resolution and a noise level of

15\,\mu{\rm K}

per pixel can determine

\Omega

with a variance of 5\%. If all other cosmological parameters are fixed,

\Omega

can be measured to better than 1\%.

References(13)

Figures(0)

Small scale cosmic microwave background anisotropies as a probe of the geometry of the universe

Marc Kamionkowski
(
- Princeton, Inst. Advanced Study
)
,
David N. Spergel
(
- Princeton U. Observ.
)
,
Naoshi Sugiyama
(
- UC, Berkeley, CfPA and
- Tokyo U.
)

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•
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•
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Francois R. Bouchet
(
- Paris, Inst. Astrophys.
)
,
Richard Gispert
(
- Orsay, IAS
)
,
Jean-Lou Puget
(
- Orsay, IAS
)

•
e-Print:
- astro-ph/9507032

The Doppler peaks from cosmic texture

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

- Phys.Rev.Lett. 75 (1995) 2642-2645
•
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- astro-ph/9505120
•
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LLoyd Knox
(
- Chicago U. and
- Fermilab
)

- Phys.Rev.D 52 (1995) 4307-4318
•
e-Print:
- astro-ph/9504054
•
DOI:
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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:
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•
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•
e-Print:
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•
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Effect of the cosmological constant on large scale anisotropies in the microwave backbround

L. Kofman
(
- Tartu Observ.
)
,
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(
- Landau Inst.
)

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K.M. Gorski
(
- NASA, Goddard
)
,
G. Hinshaw
(
- Hughes STX, Greenbelt
)
,
a.J. Banday
(
- NASA, Goddard
)
,
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(
- NASA, Goddard
)
,
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(
- UCLA
)

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Robert Crittenden
(
- Pennsylvania U.
)
,
J.Richard Bond
(
- Canadian Inst. Theor. Astrophys.
)
,
Richard L. Davis
(
- Pennsylvania U.
)
,
George Efstathiou
(
- Oxford U.
)
,
Paul J. Steinhardt
(
- Pennsylvania U.
)

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•
e-Print:
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•
DOI:
- 10.1103/PhysRevLett.71.324