Mário G Santos

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We study contributions from inhomogeneous (patchy) reionization to arcminute scale (1000 < ℓ < 10, 000) cosmic microwave background (CMB) anisotropies. We show that inhomo-geneities in the ionization fraction, rather than in the mean density, dominate both the temperature and the polarization power spectra. Depending on the ionization history and the(More)
In this paper we explore the impact of including redshift information on cosmological applications with the forthcoming generation of large-scale, deep radio continuum surveys. By cross-matching these radio surveys with shallow optical to near-infrared surveys we can essentially separate the source distribution into a low redshift sample and the high-z tail(More)
We consider decay chains of the type P → M + · · · → f + · · ·, where M is a neutral meson that may mix with its antiparticle M , before decaying into the final state f. P may be either a heavier neutral meson or a charged meson. We perform a rephasing-invariant analysis of the quantities that show up in such cascade decays. If the decay P → M + · · · (or(More)
The large-scale structure of the Universe supplies crucial information about the physical processes at play at early times. Unresolved maps of the intensity of 21 cm emission from neutral hydrogen HI at redshifts z=/~1-5 are the best hope of accessing the ultralarge-scale information, directly related to the early Universe. A purpose-built HI intensity(More)
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