Search Results for author: Brandon C. Kelly

Found 2 papers, 2 papers with code

Flexible and Scalable Methods for Quantifying Stochastic Variability in the Era of Massive Time-Domain Astronomical Data Sets

2 code implementations • 24 Feb 2014 • Brandon C. Kelly, Andrew C. Becker, Malgosia Sobolewska, Aneta Siemiginowska, Phil Uttley

We present the use of continuous-time autoregressive moving average (CARMA) models as a method for estimating the variability features of a light curve, and in particular its power spectral density (PSD).

Instrumentation and Methods for Astrophysics

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Some Aspects of Measurement Error in Linear Regression of Astronomical Data

2 code implementations • 18 May 2007 • Brandon C. Kelly

The simulations illustrate that the Gaussian mixture model outperforms other common estimators and can effectively give constraints on the regression parameters, even when the measurement errors dominate the observed scatter, source detection fraction is low, or the intrinsic distribution of the independent variables is not a mixture of Gaussians.

astro-ph

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