Zobrazeno 1 - 10
of 197
pro vyhledávání: '"Coulson, David"'
Publikováno v:
Phys.Rev.D54:3727-3744,1996
We investigate how the qualitative structure of Doppler peaks in the angular power spectrum of the cosmic microwave anisotropy is affected by basic assumptions going into theories of structure formation. We define the concepts of ``coherent'' and ``i
Externí odkaz:
http://arxiv.org/abs/astro-ph/9605047
Publikováno v:
Phys.Rev.Lett.76:2617-2620,1996
We examine how the qualitative structure of the Doppler peaks in the angular power spectrum of the cosmic microwave anisotropy depends on the fundamental nature of the perturbations which produced them. The formalism of Hu and Sugiyama is extended to
Externí odkaz:
http://arxiv.org/abs/astro-ph/9511042
Publikováno v:
Phys.Rev.Lett.76:1413-1416,1996
Fluctuations in the cosmic microwave background (CMB) temperature are being studied with ever increasing precision. Two competing types of theories might describe the origins of these fluctuations: ``inflation'' and ``defects''. Here we show how the
Externí odkaz:
http://arxiv.org/abs/astro-ph/9505030
Autor:
Coulson, David
We present a technique of calculating microwave anisotropies from global defects in a reionised universe. We concentrate on angular scales down to one degree where we expect the nongaussianity of the temperature anisotropy in these models to become a
Externí odkaz:
http://arxiv.org/abs/astro-ph/9407051
Publikováno v:
Phys.Rev.Lett. 73 (1994) 2390-2393
We study the polarization-polarization and polarization-temperature correlations in standard adiabatic scenarios for structure formation. Temperature anisotropies due to gravitational potential wells and oscillations in the photon-baryon-electron flu
Externí odkaz:
http://arxiv.org/abs/astro-ph/9406046
High resolution maps of the anisotropy of the microwave sky will yield invaluable clues as to the mechanisms involved in cosmic structure formation. One fundamental question they should answer is whether the fluctuations were Gaussian random noise, a
Externí odkaz:
http://arxiv.org/abs/hep-ph/9310322
The COBE satellite's maps of the cosmic microwave background (CMB) anisotropy do not have the resolution to discriminate between theories of cosmic structure formation based on inflation, and those based on field ordering following a symmetry breakin
Externí odkaz:
http://arxiv.org/abs/hep-ph/9305261
Autor:
Tamara, Alice1,2 (AUTHOR), Coulson, David J.1 (AUTHOR), Latief, Jevi Septyani1,2 (AUTHOR), Bakhashab, Sherin3 (AUTHOR), Weaver, Jolanta U.1,4,5 (AUTHOR) jolanta.weaver@newcastle.ac.uk
Publikováno v:
Stem Cell Research & Therapy. 5/13/2021, Vol. 12 Issue 1, p1-14. 14p.
Autor:
Coulson, David J.1 (AUTHOR), Bakhashab, Sherin2 (AUTHOR), Latief, Jevi Septyani1 (AUTHOR), Weaver, Jolanta U.1,3,4 (AUTHOR) jolanta.weaver@newcastle.ac.uk
Publikováno v:
Journal of Translational Medicine. 4/15/2021, Vol. 19 Issue 1, p1-12. 12p.