Search Results for author: Kris Sigurdson

Found 3 papers, 2 papers with code

Coaxing Cosmic 21cm Fluctuations from the Polarized Sky using m-mode Analysis

1 code implementation9 Jan 2014 J. Richard Shaw, Kris Sigurdson, Michael Sitwell, Albert Stebbins, Ue-Li Pen

In this paper we continue to develop the m-mode formalism, a technique for efficient and optimal analysis of wide-field transit radio telescopes, targeted at 21 cm cosmology.

Cosmology and Nongalactic Astrophysics Instrumentation and Methods for Astrophysics

All-Sky Interferometry with Spherical Harmonic Transit Telescopes

1 code implementation2 Feb 2013 J. Richard Shaw, Kris Sigurdson, Ue-Li Pen, Albert Stebbins, Michael Sitwell

In this paper we describe the spherical harmonic transit telescope, a novel formalism for the analysis of transit radio telescopes.

Cosmology and Nongalactic Astrophysics

Photons and Baryons before Atoms: Improving the Tight-Coupling Approximation

no code implementations2 Dec 2010 Francis-Yan Cyr-Racine, Kris Sigurdson

Prior to recombination photons, electrons, and atomic nuclei rapidly scattered and behaved, almost, like a single tightly-coupled photon-baryon plasma.

Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology

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