Search Results

emcee: The MCMC Hammer

dfm/emcee 16 Feb 2012

The algorithm behind emcee has several advantages over traditional MCMC sampling methods and it has excellent performance as measured by the autocorrelation time (or function calls per independent sample).

Instrumentation and Methods for Astrophysics Computational Physics Computation

Prospects for precision cosmology with the 21 cm signal from the dark ages

dfm/emcee 15 May 2023

A measurement of the global (sky-averaged) 21 cm signal to the precision of thermal noise from a 1, 000 h integration would yield a measurement within 10% of a combination of cosmological parameters.

Cosmology and Nongalactic Astrophysics

$B$-mode forecast of CMB-Bh$\overline{a}$rat

dfm/emcee 24 Oct 2021

For a simplistic foreground model (only polarized dust and synchrotron), both component separation pipelines can achieve the desired sensitivity of ECHO, i. e. $\sigma (r =0) \sim (0. 4 - 0. 7)\times 10^{-3}$.

Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies

Atmospheric Reconnaissance of TRAPPIST-1 b with JWST/NIRISS: Evidence for Strong Stellar Contamination in the Transmission Spectra

dfm/emcee 13 Sep 2023

The two transmission spectra show moderate to strong evidence of contamination from unocculted stellar heterogeneities, which dominates the signal in both visits.

Earth and Planetary Astrophysics Solar and Stellar Astrophysics

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