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High‐Resolution Observations of the Cosmic Microwave Background Power Spectrum with ACBAR
Open accessAbstract
We report the first measurements of anisotropy in the cosmic microwave background (CMB) radiation with the Arcminute Cosmology Bolometer Array Receiver (ACBAR). The instrument was installed on the 2.1 m Viper telescope at the South Pole in 2001 January; the data presented here are the product of observations up to and including 2002 July. We present two deep differential maps produced by subtracting leading and trailing observations from the main field. The differential maps cover approximately 24 deg 2 of sky selected for low dust contrast. These results represent the highest signal-to-noise ratio observations of CMB anisotropy to date; in the deepest 150 GHz band map, we reached an rms of ~8.0 μK per 5' beam. The 3° extent of the maps and small beam size of the experiment allow the measurement of the CMB anisotropy power spectrum over the range l = 150-3000 with resolution of Δ l = 150. The contributions of galactic dust and radio sources to the observed anisotropy are negligible and are removed in the analysis. The resulting power spectrum is found to be consistent with the primary anisotropy expected in a concordance ΛCDM universe.
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Schlegel, D. J., Finkbeiner, D. P., & Davis, M. (1998) · The Astrophysical Journal · doi:10.1086/305772 · Cited by 15,126
Primeval Adiabatic Perturbation in an Expanding Universe
Peebles, P. J. E., & Yu, J. T. (1970) · The Astrophysical Journal · doi:10.1086/150713 · Cited by 1,230
Cited by
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FIVE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE OBSERVATIONS: COSMOLOGICAL INTERPRETATION
Komatsu, E., Dunkley, J., Nolta, M. R., Bennett, C. L., Gold, B., Hinshaw, G., Jarosik, N., Larson, D., Limon, M., Page, L., et al. (2009) · The Astrophysical Journal Supplement Series · doi:10.1088/0067-0049/180/2/330 · Cited by 5,786
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Imprints of a primordial preferred direction on the microwave background
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Metadata
- Authors
- Kuo, C. L., Ade, P. A. R., Bock, J. J., Cantalupo, C., Daub, M. D., Goldstein, J., Holzapfel, W. L., Lange, A. E., Lueker, M., Newcomb, M., Peterson, J. B., Ruhl, J., Runyan, M. C., & Torbet, E.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2004-01
- Volume
- 600
- Issue
- 1
- Pages
- 32-51
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2169354822
- Cited by
- 366
- References
- 2
- FWCI
- 46.28
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Kuo, C. L., Ade, P. A. R., Bock, J. J., Cantalupo, C., Daub, M. D., Goldstein, J., Holzapfel, W. L., Lange, A. E., Lueker, M., Newcomb, M., Peterson, J. B., Ruhl, J., Runyan, M. C., & Torbet, E. (2004). High‐Resolution Observations of the Cosmic Microwave Background Power Spectrum with ACBAR. The Astrophysical Journal. https://doi.org/10.1086/379783
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