Sci-Bytes> Hot Paper in Physics
Week of October 23, 2011
"Seven-year Wilkinson Microwave Anisotropy Probe (WMAP) observations: Cosmological interpretation," by E. Komatsu and 20 others, Astrophysical Journal Supplement Series, 192(2): No. 18, February 2011.
[Author affiliations: 14 U.S. and Canadian institutions]
From the abstract: "The combination of seven-year data from WMAP and improved astrophysical data rigorously tests the standard cosmological model and places new constraints on its basic parameters and extensions. By combining the WMAP data with the latest distance measurements from the baryon acoustic oscillations (BAO) in the distribution of galaxies and the Hubble constant (H(0)) measurement, we determine the parameters of the simplest six-parameter Lambda CDM model….The seven-year polarization data have significantly improved: we now detect the temperature-E-mode polarization cross power spectrum at 21 sigma, compared with 13 sigma from the five-year data. With the seven-year temperature-B-mode cross power spectrum, the limit on a rotation of the polarization plane due to potential parity-violating effects has improved by 38% to Delta a = -1 degrees.1 +/- 1 degrees.4(statistical) +/- 1 degrees.5(systematic) (68% CL). We report significant detections of the Sunyaev-Zel'dovich (SZ) effect at the locations of known clusters of galaxies. The measured SZ signal agrees well with the expected signal from the X-ray data on a cluster-by-cluster basis. However, it is a factor of 0.5-0.7 times the predictions from "universal profile" of Arnaud et al., analytical models, and hydrodynamical simulations. We find, for the first time in the SZ effect, a significant difference between the cooling-flow and non-cooling-flow clusters (or relaxed and non-relaxed clusters), which can explain some of the discrepancy. This lower amplitude is consistent with the lower-than-theoretically expected SZ power spectrum recently measured by the South Pole Telescope Collaboration."
This 2011 report from Astrophysical Journal Supplement Series was cited 137 times in current journal articles indexed by Clarivate during May-June 2011. With this latest two-month tally, the paper ascends from its #2 placement following the previous count for March-April 201 and hereby becomes the most-cited physics paper published in the last two years, excluding reviews. Prior to the most recent bimonthly count, citations to the paper have accrued as follows:
March-April 2011: 89 citations
January-February 2011: 11
Total citations to date: 237
SOURCE: Hot Papers Database (Included with a subscription to Science Watch®, available from the Research Services Group of Thomson Reuters. The Hot Papers Database contains data on hundreds of highly cited papers published during the last two years. User interface permits searching by author, organization, journal, field, and more. Total citations, as well as citations accrued during successive bimonthly periods, can be assessed and graphed. New Hot Papers updates are produced every two months.
Spotlighted Feature
Special Country Features:
Top 20 Countries:
Citations in Five-Year Increments, and the 10th annual list of the
Top 20 Countries in ALL
FIELDS, 2001-August 31, 2011.