Chihway Chang

KICP Fellow

Ph.D., Stanford University, 2013
 
Contact Information
Location: ERC 427
Email: chihwaykicp.uchicago.edu
WWW: Web Site
 
Research
I work on weak gravitational lensing data in the Dark Energy Survey and different techniques in combining these measurements with other data sets such as the galaxy position and CMB lensing. I like to explore the weak lensing data in non-conventional ways to learn about cosmology as well as galaxy evolution. With a background in (LSST and DES) image simulations, I rely on various kinds of simulations in my work. On the side, I am interested in the prospects of HI intensity mapping in the future large radio projects.

Ongoing Scientific Projects:
 
Talks, Lectures, & Workshops
 
Currently in Committees
  • Friday Seminar committee

 
KICP Publications
2018 | 2017 | 2016


Latest Journal Publications
  1. "Dark Energy Survey Year 1 Results: redshift distributions of the weak-lensing source galaxies", Monthly Notices of the Royal Astronomical Society, Volume 478, Issue 1, p.592-610 (Jul 2018)
  2. "Dark Energy Survey Year 1 results: cross-correlation redshifts - methods and systematics characterization", Monthly Notices of the Royal Astronomical Society, Volume 477, Issue 2, p.1664-1682 (Jun 2018)
  3. "A measurement of CMB cluster lensing with SPT and DES year 1 data", Monthly Notices of the Royal Astronomical Society, Volume 476, Issue 2, p.2674-2688 (May 2018)
  4. "Improving Weak Lensing Mass Map Reconstructions using Gaussian and Sparsity Priors: Application to DES SV", Monthly Notices of the Royal Astronomical Society, Advance Access (May 2018)
  5. "2015 BP519", Minor Planet Electronic Circ., No. 2018-J36 (2018) (May 2018)
  6. "Optical Characterization of the SPT-3G Camera", Journal of Low Temperature Physics, Online First (May 2018)
  7. "Dark Energy Survey Year 1 results: curved-sky weak lensing mass map", Monthly Notices of the Royal Astronomical Society, Volume 475, Issue 3, p.3165-3190 (Apr 2018)
  8. "Dark Energy Survey Year 1 Results: Redshift distributions of the weak lensing source galaxies", Monthly Notices of the Royal Astronomical Society, Advance Access (Apr 2018)
  9. "Survey geometry and the internal consistency of recent cosmic shear measurements", arXiv:1804.10663 (Apr 2018)
  10. "Maps of the Southern Millimeter-wave Sky from Combined 2500 deg$^2$ SPT-SZ and Planck Temperature Data", arXiv:1803.10682 (Mar 2018)
  11. "Dark Energy Survey Year 1 Results: Methodology and Projections for Joint Analysis of Galaxy Clustering, Galaxy Lensing, and CMB Lensing Two-point Functions", arXiv:1802.05257 (Feb 2018)
  12. "A Comparison of Maps and Power Spectra Determined from South Pole Telescope and Planck Data", The Astrophysical Journal, Volume 853, Issue 1, article id. 3, 14 pp. (2018) (Jan 2018)
  13. "Measurements of the Temperature and E-mode Polarization of the CMB from 500 Square Degrees of SPTpol Data", The Astrophysical Journal, Volume 852, Issue 2, article id. 97, 31 pp. (2018) (Jan 2018)
  14. "The Dark Energy Survey Data Release 1", arXiv:1801.03181 (Jan 2018)
  15. "Constraints on Cosmological Parameters from the Angular Power Spectrum of a Combined 2500 deg$^2$ SPT-SZ and Planck Gravitational Lensing Map", arXiv:1712.07541 (Dec 2017)
  16. "Dark Energy Survey Year 1 Results: Calibration of redMaGiC Redshift Distributions in DES and SDSS from Cross-Correlations", arXiv:1712.07298 (Dec 2017)
  17. "A Comparison of Cosmological Parameters Determined from CMB Temperature Power Spectra from the South Pole Telescope and the Planck Satellite", The Astrophysical Journal, Volume 850, Issue 1, article id. 101, 14 pp. (2017) (Nov 2017)
  18. "A 2500 deg2 CMB Lensing Map from Combined South Pole Telescope and Planck Data", The Astrophysical Journal, Volume 849, Issue 2, article id. 124, 16 pp. (2017) (Nov 2017)
  19. "Dark Energy Survey Year 1 Results: A Precise H0 Measurement from DES Y1, BAO, and D/H Data", arXiv:1711.00403 (Nov 2017)
  20. "Density split statistics: Cosmological constraints from counts and lensing in cells in DES Y1 and SDSS", arXiv:1710.05045 (Oct 2017)

 
Visitors
Current & Future Visitors:
  1. Marco Gatti, IFAE Barcelona
Past Visitors:
  1. Deborah Bard, NERSc, LBNL (2018)
  2. Eric Baxter, University of Pennsylvania (2018)
  3. Chi-Ting Chiang, C.N. Yang Institute for Theoretical Physics/Stony Brook University (2018)
  4. Pier Fiedorowicz, University of Arizona (2018)
  5. Andrew Hearin, Argonne National Lab (2018)
  6. Daniel Jacobs, Arizona State University (2018)
  7. Yao-Yuan Mao, University of Pittsburgh (2018)
  8. John Mates, University of Colorado, Boulder (2018)
  9. Jessica Turner, Fermi National Accelerator Laboratory (2018)
  10. Yuanyuan Zhang, Fermilab (2018)
  11. Ami Choi, The Ohio State University (2017)
  12. Stephen Feeney, Flatiron Institute (2017)
  13. Francois Lanusse, Carnegie Mellon University (2017)