The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Extragalactic Radio Sources and the WMAP Cold Spot
Open accessAbstract
We detect a dip of 20%-45% in the surface brightness and number counts of NRAO VLA Sky Survey (NVSS) sources smoothed to a few degrees at the location of the WMAP cold spot. The dip has structure on scales of ~1° to 10°. Together with independent all-sky wavelet analyses, our results suggest that the dip in extragalactic brightness and number counts and the WMAP cold spot are physically related, i.e., that the coincidence is neither a statistical anomaly nor a WMAP foreground-correction problem. If the cold spot does originate from structures at modest redshifts, as we suggest, then there is no remaining need for non-Gaussian processes at the last scattering surface of the cosmic microwave background (CMB) to explain the cold spot. The late integrated Sachs-Wolfe effect, already seen statistically for NVSS source counts, can now be seen to operate on a single region. To create the magnitude and angular size of the WMAP cold spot requires a ~140 Mpc radius completely empty void at z ≤ 1 along this line of sight. This is far outside the current expectations of the concordance cosmology, and adds to the anomalies seen in the CMB.
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Cites
Bennett, C. L., Halpern, M., Hinshaw, G., Jarosik, N., Kogut, A., Limon, M., Meyer, S. S., Page, L., Spergel, D. N., Tucker, G. S., et al. (2003) · The Astrophysical Journal Supplement Series · doi:10.1086/377253 · Cited by 4,860
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Schwarz, D. J., Copi, C. J., Huterer, D., & Starkman, G. D. (2016) · Classical and Quantum Gravity · doi:10.1088/0264-9381/33/18/184001 · Cited by 342
An Imprint of Superstructures on the Microwave Background due to the Integrated Sachs-Wolfe Effect
Granett, B. R., Neyrinck, M. C., & Szapudi, I. (2008) · The Astrophysical Journal · doi:10.1086/591670 · Cited by 295
Abdalla, E., Abellán, G. F., Aboubrahim, A., Agnello, A., Akarsu, Ö., Akrami, Y., Alestas, G., Aloni, D., Amendola, L., Anchordoqui, L. A., et al. (2022) · Journal of High Energy Astrophysics · doi:10.1016/j.jheap.2022.04.002 · Cited by 37
INTEGRATED SACHS-WOLFE IMPRINT OF SUPERSTRUCTURES ON LINEAR SCALES
Pápai, P., Szapudi, I., & Granett, B. R. (2011) · The Astrophysical Journal · doi:10.1088/0004-637x/732/1/27 · Cited by 35
Metadata
- Authors
- Rudnick, L., Brown, S., & Williams, L. R.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2007-12-10
- Volume
- 671
- Issue
- 1
- Pages
- 40-44
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2090960271
- Cited by
- 173
- References
- 1
- FWCI
- 12.28
- Type
- journal article
- Language
- en
- Open access
- bronze
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