Search Results for author: Tristan L. Smith

Found 3 papers, 2 papers with code

On the halo-mass and radial scale dependence of the lensing is low effect

no code implementations4 Nov 2020 Johannes U. Lange, Alexie Leauthaud, Sukhdeep Singh, Hong Guo, Rongpu Zhou, Tristan L. Smith, Francis-Yan Cyr-Racine

It has been shown that the lensing amplitude of galaxies in the Baryon Oscillation Spectroscopic Survey (BOSS) is lower than expected given their clustering properties.

Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies

Realistic sensitivity curves for pulsar timing arrays

1 code implementation9 Jul 2019 Jeffrey S. Hazboun, Joseph D. Romano, Tristan L. Smith

We construct realistic sensitivity curves for pulsar timing array searches for gravitational waves, incorporating both red and white noise contributions to individual pulsar noise spectra, as well as the effect of fitting to a pulsar timing model.

General Relativity and Quantum Cosmology Instrumentation and Methods for Astrophysics

Cosmological implications of ultra-light axion-like fields

1 code implementation27 Jun 2018 Vivian Poulin, Tristan L. Smith, Daniel Grin, Tanvi Karwal, Marc Kamionkowski

Cosmological observations are used to test for imprints of an ultra-light axion-like field (ULA), with a range of potentials $V(\phi)\propto[1-\cos(\phi/f)]^n$ set by the axion-field value $\phi$ and decay constant $f$.

Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology

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