## People

# Jeff Jewell

# Jeff Jewell

## Biographical Sketch

Jeff Jewell received his Ph.D. in Astrophysics from the University of Chicago in 2000. He was an NRC Post-Doc at JPL from 2000-2001, and in 2001 became a member of the Senior Level Staff in Information Systems and Computer Science. His research interests are in Bayesian inference for large data sets, inverse problems, dynamical systems, and spatial random fields.## Projects

## Selected Publications

Pietrobon, Davide, Gorski, Krzysztof M, Bartlett, James, Banday, A J, Dobler, Gregory, Colombo, Loris P L, Hildebrandt, Sergi R, Jewell, Jeffrey B, Pagano, Luca, Rocha, Graca, Eriksen, Hans Kristian, Saha, Rajib, and Lawrence, Charles R (2012). “Analysis of WMAP 7 Year Temperature Data: Astrophysics of the Galactic Haze,” *The Astrophysical Journal*, **755**(1), p. 69.

Zacchei, A., et al. (2011). “Planck early results. V. The Low Frequency Instrument data processing,” *Astronomy and Astrophysics*, **536**, pp. A5.

Mennella, A, et al. (2011). “Planck early results. III. First assessment of the Low Frequency Instrument in-flight performance,” *Astronomy and Astrophysics*, **536**, pp. A3.

Tauber, J. A,. et al. (2010). “Planck pre-launch status: The Planck mission,” *Astronomy and Astrophysics*, **520**, pp. A1.

Dickinson, C, Eriksen, H K, Banday, A J, Jewell, J B, Górski, K M, Huey, G, Lawrence, C R, O'Dwyer, I J, and Wandelt, B D (2009). “Bayesian Component Separation and Cosmic Microwave Background Estimation for the Five-Year WMAP Temperature Data,” *The Astrophysical Journal*, **705**(2), pp. 1607–1623.

Jewell, J B, Eriksen, H K, Wandelt, B D, O'Dwyer, I J, Huey, Greg, and Górski, K M (2009). “A Markov Chain Monte Carlo Algorithm for Analysis of Low Signal-To-Noise Cosmic Microwave Background Data,” *The Astrophysical Journal*, **697**(1), pp. 258–268.

Rudjord, \O, Groeneboom, N E, Eriksen, H K, Huey, Greg, Górski, K M, and Jewell, J B (2009). “Cosmic Microwave Background Likelihood Approximation by a Gaussianized Blackwell-Rao Estimator,” *The Astrophysical Journal*, **692**(2), pp. 1669–1677.

Groeneboom, N E, Eriksen, H K, Gorski, K, Huey, G, Jewell, Jeffrey, and Wandelt, B (2009). “Bayesian Analysis of White Noise Levels in the Five-Year WMAP Data,” *The Astrophysical Journal Letters*, **702**(1), pp. L87–L90.

Eriksen, H K, Jewell, J B, Dickinson, C, Banday, A J, Górski, K M, and Lawrence, C R (2008). “Joint Bayesian component separation and CMB power spectrum estimation,” *The Astrophysical Journal*, **676**(1), p. 10.

Eriksen, H K, Dickinson, C, Jewell, J B, Banday, A J, Górski, K M, and Lawrence, C R (2008). “The Joint Large-Scale Foreground-CMB Posteriors of the 3 Year WMAP Data,” *The Astrophysical Journal*, **672**(2), pp. L87–L90.

Eriksen, H K, Huey, Greg, Saha, R, Hansen, F K, Dick, J, Banday, A J, Górski, K M, Jain, P, Jewell, J B, Knox, L, Larson, D L, O'Dwyer, I J, Souradeep, T, and Wandelt, B D (2007). “A Reanalysis of the 3 Year Wilkinson Microwave Anisotropy Probe Temperature Power Spectrum and Likelihood,” *The Astrophysical Journal*, **656**(2), pp. 641–652.

Larson, D L, Eriksen, H K, Wandelt, B D, Górski, K M, Huey, G, Jewell, J B, and O'Dwyer, I J (2007). “Estimation of polarized power spectra by Gibbs sampling,” *The Astrophysical Journal*, **656**(2), p. 653.

Eriksen, H K, Huey, Greg, Banday, A J, Górski, K M, Jewell, J B, O'Dwyer, I J, and Wandelt, B D (2007). “Bayesian Analysis of the Low-Resolution Polarized 3 Year WMAP Sky Maps,” *The Astrophysical Journal*, **665**(1), pp. L1–L4.

Chin, T M, Turmon, M J, Jewell, J B, and Ghil, M (2007). “An Ensemble-Based Smoother with Retrospectively Updated Weights for Highly Nonlinear Systems,” *Monthly Weather Review*, **135**(1), pp. 186–202.

Chu, M, Eriksen, H, Knox, L, Gorski, K, Jewell, Jeffrey, Larson, D, O'Dwyer, I, and Wandelt, B (2005). “Cosmological parameter constraints as derived from the Wilkinson Microwave Anisotropy Probe data via Gibbs sampling and the Blackwell-Rao estimator,” *Physical Review D*, **71**(10), p. 103002.

O'Dwyer, I J, Eriksen, H K, Wandelt, B D, Jewell, J B, Larson, D L, Górski, K M, Banday, A J, Levin, S, and Lilje, P B (2004). “Bayesian Power Spectrum Analysis of the First-Year Wilkinson Microwave Anisotropy Probe Data,” *The Astrophysical Journal*, **617**(2), pp. L99–L102.

Jewell, Jeffrey, Levin, S, and Anderson, C H (2004). “Application of Monte Carlo Algorithms to the Bayesian Analysis of the Cosmic Microwave Background,” *The Astrophysical Journal*, **609**(1), pp. 1–14.

Eriksen, H K, O'Dwyer, I J, Jewell, J B, Wandelt, B D, Larson, D L, Górski, K M, Levin, S, Banday, A J, and Lilje, P B (2004). “Power Spectrum Estimation from High-Resolution Maps by Gibbs Sampling,” *The Astrophysical Journal Supplement Series*, **155**(2), pp. 227–241.

Jewell, Jeffrey (2001). “A Statistical Characterization of Galactic Dust Emission as a Non-Gaussian Foreground of the Cosmic Microwave Background,” *The Astrophysical Journal*, **557**(2), pp. 700–713.

Jewell, Jeffrey, Lawrence, C R, and Levin, S (1999). “Bayesian Approach to Foreground Removal,” *Microwave Foregrounds*, vol. 181, p. 357.