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Tim  Eifler's Picture
Jet Propulsion Laboratory
M/S 169-237
4800 Oak Grove Drive
Pasadena, CA 91109
Email Contact:
Curriculum Vitae:

Tim Eifler

  • "Diplom"in Physics, University of Bonn, (March 2005)
  • Member of the International Max Planck Research, School of Astronomy and Astrophysics (MPIfR Bonn), (2006 - 2009)
  • PhD in Astronomy, Argelander Institute for Astronomy, University of Bonn (Feb 2009)

Research Interests
Structure Formation, Weak Lensing, Combining Cosmological Probes, Statistical Tools/Data Analysis techniques, Numerical Simulations


Dark Energy Survey (DES) Icon Dark Energy Survey (DES)
DES is a optical survey that covers 5000 square degree of the sky and aims at constraining dark energy through weak lensing, SN1A, galaxy clusters, and baryonic acoustic oscillations.

WFIRST (Wide Field Infrared Survey Telescope) Icon WFIRST (Wide Field Infrared Survey Telescope)
The Wide-Field Infrared Survey Telescope (WFIRST) is a NASA observatory designed to perform wide-field imaging and surveys of the near infrared (NIR) sky.

Large Synoptic Survey Telescope (LSST) – Dark Energy Science Collaboration (DESC) Icon Large Synoptic Survey Telescope (LSST) – Dark Energy Science Collaboration (DESC)
The LSST is a ground-based telescope in Chile that has been designed to study Dark Matter and Dark Energy. The LSST is due to begin observing in 2020.

SuperBIT Icon SuperBIT
SuperBIT is a mid-latitude (launch from Wanaka, NZ) ultra-long duration balloon (ULDB), which will provide 100 days of near space-quality imaging of selected galaxy clusters to study properties of dark energy and dark matter.

Professional Experience
  • Research Scientist at NASA JPL/Caltech, (March 2014 - Present)
  • Postdoctoral Fellow at the University of Pennsylvania's Center for Particle Cosmology, (March 2012 - March 2014)
  • Postdoctoral Fellow at the Ohio State University's Center for Cosmology and Astro-Particle Physics, (Sept 2009 - March 2012)

Selected Publications
  1. Eifler, T., Krause, E., Dodelson, S., Zentner, A., Hearin, A., Gnedin, N., 2015, "Accounting for baryonic effects in cosmic shear tomography: Determining a minimal set of nuisance parameters using PCA", MNRAS, 454, 3, 2451-2471
  2. Eifler T., Krause E., Schneider P., Honscheid K., 2014, “Combining Probes of Large-Scale Structure with CosmoLike”, MNRAS, 440, 1379
  3. Huff E. M., Eifler T., Hirata C. M., Mandelbaum R., Schlegel D., Seljak U., 2014, Seeing in the dark II. Cosmic shear in the Sloan Digital Sky Survey", MNRAS, 440, 1322
  4. Zentner A. R., Semboloni E., Dodelson S., Eifler T., Krause E., Hearin A. P., 2013,“Accounting for Baryons in Cosmological Constraints from Cosmic Shear”, PhysRevD, 87, 043509
  5. Huff E., Krause E., Eifler T., George M., Schlegel D., 2013,“Cosmic shear without shape noise”, arXiv:1311.1489H
  6. Krause E., Schneider P., Eifler T., 2012, “A new third-order cosmic shear statistic: separating E-/B-mode correlations on a finite interval”, MNRAS, 423, 3011
  7. Vanderveld A., Mortonson M., Hu W., Eifler T., 2012 “Testing dark energy paradigms with weak gravitational lensing”, Physical Review D, 85, 10
  8. Kitching T. D. , Balan, S. T., Bridle, S., Cantale, N., Courbin, F., Eifler, T., and 22 co-authors 2012,“Image analysis for cosmology: results from the GREAT10 Galaxy Challenge”, MNRAS, 423, 3163
  9. Eifler T., 2011, “Weak-lensing statistics from the Coyote Universe”, MNRAS, 416, 536
  10. Schneider P., Eifler T., Krause E., 2010, “COSEBIs: Extracting the full E-/B-mode information from cosmic shear correlation functions”, A&A, 520, A116+
  11. Eifler T., Schneider P., Krause E., 2010, “Measuring cosmic shear with the ring statistics”A&A, 510, A7+
  12. Schrabback T., Hartlap J., Joachimi B., Kilbinger M., Simon P., Benabed K., Bradac M., Eifler, T., and 14 other co-authors, 2010, “Evidence of the accelerated expansion of the Universe from weak lensing tomography with COSMOS”, A&A, 516, 26
  13. Eifler T., Schneider P., Hartlap J., 2009, “Dependence of cosmic shear covariances on cosmology. Impact on parameter estimation”, A&A, 502, 721
  14. Eifler T., Kilbinger M., Schneider P., 2008, “Comparing cosmic shear measures. Optimizing the information content of cosmic shear data vectors”, A&A, 482, 9

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