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A. Kogut
Researcher at Goddard Space Flight Center
Publications - 125
Citations - 44876
A. Kogut is an academic researcher from Goddard Space Flight Center. The author has contributed to research in topics: Cosmic microwave background & Cosmic background radiation. The author has an hindex of 51, co-authored 125 publications receiving 43454 citations.
Papers
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Journal ArticleDOI
Seven-year wilkinson microwave anisotropy probe (wmap *) observations: cosmological interpretation
Eiichiro Komatsu,Kristine M. Smith,Jo Dunkley,Charles L. Bennett,B. Gold,Gary Hinshaw,Norman Jarosik,Davin Larson,M. R. Nolta,Lyman A. Page,David N. Spergel,Mark Halpern,Robert S. Hill,A. Kogut,Michele Limon,S. S. Meyer,N. Odegard,Gregory S. Tucker,Janet Weiland,Edward J. Wollack,Edward L. Wright +20 more
TL;DR: In this article, a 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.
Journal ArticleDOI
Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
David N. Spergel,R. Bean,O. Doré,M. R. Nolta,Charles L. Bennett,Jo Dunkley,Gary Hinshaw,Norman Jarosik,Eiichiro Komatsu,L. A. Page,Hiranya V. Peiris,Licia Verde,Mark Halpern,Robert S. Hill,A. Kogut,Michele Limon,S. S. Meyer,N. Odegard,G. S. Tucker,Janet Weiland,Edward J. Wollack,Edward L. Wright +21 more
TL;DR: In this article, a simple cosmological model with only six parameters (matter density, Omega_m h^2, baryon density, BH 2, Hubble Constant, H_0, amplitude of fluctuations, sigma_8, optical depth, tau, and a slope for the scalar perturbation spectrum, n_s) was proposed to fit the three-year WMAP temperature and polarization data.
Journal ArticleDOI
Wilkinson Microwave Anisotropy Probe (WMAP) three year results: implications for cosmology
David N. Spergel,Rachel Bean,Rachel Bean,Olivier Doré,Olivier Doré,M. R. Nolta,M. R. Nolta,Charles L. Bennett,Charles L. Bennett,Gary Hinshaw,Norman Jarosik,Eiichiro Komatsu,Eiichiro Komatsu,Lyman A. Page,Hiranya V. Peiris,Hiranya V. Peiris,Licia Verde,Licia Verde,M. Halpern,R. S. Hill,A. Kogut,Michele Limon,S. S. Meyer,N. Odegard,Gregory S. Tucker,Jan Weiland,Edward J. Wollack,E. L. Wright +27 more
TL;DR: In this article, a simple cosmological model with only six parameters (matter density, Omega_m h^2, baryon density, BH density, Hubble Constant, H_0, amplitude of fluctuations, sigma_8, optical depth, tau, and a slope for the scalar perturbation spectrum, n_s) was proposed to fit the three-year WMAP temperature and polarization data.
Journal ArticleDOI
Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
Eiichiro Komatsu,Jo Dunkley,M. R. Nolta,Charles L. Bennett,B. Gold,Gary Hinshaw,Norman Jarosik,David L. Larson,Michele Limon,L. Page,David N. Spergel,Mark Halpern,Robert S. Hill,A. Kogut,S. S. Meyer,G. S. Tucker,Janet Weiland,Edward J. Wollack,Edward L. Wright +18 more
TL;DR: In this paper, the authors show that the tensor-to-scalar ratio r 1 is disfavored regardless of r. They provide a set of "WMAP distance priors, to test a variety of dark energy models.
Journal ArticleDOI
Structure in the COBE differential microwave radiometer first year maps
George F. Smoot,Charles L. Bennett,A. Kogut,Edward L. Wright,J. Aymon,N. W. Boggess,E. S. Cheng,G. De Amici,Samuel Gulkis,Michael G. Hauser,Gary Hinshaw,P. D. Jackson,Michael A. Janssen,E. Kaita,T. Kelsall,P. Keegstra,Charles H. Lineweaver,K. Loewenstein,Philip Lubin,John C. Mather,S. S. Meyer,S. H. Moseley,T. L. Murdock,L. Rokke,Robert F. Silverberg,L. Tenorio,Rainer Weiss,David T. Wilkinson +27 more
TL;DR: In this paper, the first year of data from the differential microwave radiometers on the Cosmic Background Explorer was presented, and the angular autocorrelation of the signal in each radiometer channel and cross-correlation between channels were consistent and gave a primordial fluctuation power-law spectrum with index of 1.1 +/- 0.5, and an rms-quadrupole-normalized amplitude of 16 +/- 4 micro-K.