Thomas M. Crawford

KICP Senior researcher

Ph.D., The University of Chicago, 2003
 
Contact Information
Phone: (773) 702-1564
Location: ERC 331
Email: tcrawforkicp.uchicago.edu
WWW: Web Site
CV: Curriculum Vitae
 
Research
The South Pole Telescope.
I'm a Senior Research Associate in the Department of Astronomy & Astrophysics and the Kavli Institute for Cosmological Physics. at the University of Chicago For the past six years, I have worked on a single project: The 10-meter South Pole Telescope (SPT). The SPT is a millimeter-wave telescope designed to make sensitive measurements of diffuse, low-contrast emission, such as anisotropy in the cosmic microwave background (CMB). Equipped with a highly sensitive ~1000-element bolometer array operating at 95, 150, and 220 GHz, the SPT is capable of mapping the arcminute-scale anisotropy of the CMB to exquisite precision. The first goal of the SPT is to use the CMB as a backlight to discover distant, massive clusters of galaxies through their interaction with the CMB, known as the Sunyaev-Zel'dovich (SZ) effect.

In 2008, the SPT team reported the first successful use of SZ observations to find previously unknown clusters. More recently, the team has published the first cosmological constraints from an SZ-selected sample of clusters, the first detection of the SZ power spectrum, the first millimeter-wave detection of fluctuations in the cosmic infrared background, and the discovery of a new family of high-redshift star-forming galaxies.

In the seven years I have worked on this project, I have particpated in the design of the telescope, optics, and receiver; I have designed and built a protoype SPT receiver (which was used to qualify the secondary mirror and cold optics box); and now I am one of the leaders of the data analysis effort.

Ongoing Scientific Projects:

Past Scientific Projects: Interferometric Sunyaev-Zel'dovich Effect Imaging Experiment (SZE)
 
KICP Publications
2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2006 | 2005 | 2004 | 2003


Latest Journal Publications
  1. "Cosmological lensing ratios with DES Y1, SPT, and Planck", Monthly Notices of the Royal Astronomical Society, Volume 487, Issue 1, p.1363-1379 (Jul 2019)
  2. "A Measurement of the Cosmic Microwave Background Lensing Potential and Power Spectrum from 500 deg$^2$ of SPTpol Temperature and Polarization Data", arXiv:1905.05777 (May 2019)
  3. "Cosmological lensing ratios with DES Y1, SPT and Planck", Monthly Notices of the Royal Astronomical Society, Advance Access (May 2019)
  4. "Messengers from the Early Universe: Cosmic Neutrinos and Other Light Relics", Astro2020: Decadal Survey on Astronomy and Astrophysics, science white papers, no. 159; Bulletin of the American Astronomical Society, Vol. 51, Issue 3, id. 159 (2019) (May 2019)
  5. "Tracking the time-variable Millimeter-wave sky with CMB experiments", Astro2020: Decadal Survey on Astronomy and Astrophysics, science white papers, no. 331; Bulletin of the American Astronomical Society, Vol. 51, Issue 3, id. 331 (2019) (May 2019)
  6. "Measurement of the Splashback Feature around SZ-selected Galaxy Clusters with DES, SPT and ACT", Monthly Notices of the Royal Astronomical Society, Advance Access (May 2019)
  7. "First M87 Event Horizon Telescope Results. II. Array and Instrumentation", The Astrophysical Journal Letters, Volume 875, Issue 1, article id. L2, 28 pp. (2019) (Apr 2019)
  8. "First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole", The Astrophysical Journal Letters, Volume 875, Issue 1, article id. L1, 17 pp. (2019) (Apr 2019)
  9. "Consistency of cosmic microwave background temperature measurements in three frequency bands in the 2500-square-degree SPT-SZ survey", arXiv:1904.12995 (Apr 2019)
  10. "Sunyaev-Zel'dovich effect and X-ray scaling relations from weak lensing mass calibration of 32 South Pole Telescope selected galaxy clusters", Monthly Notices of the Royal Astronomical Society, Volume 483, Issue 3, p.2871-2906 (Mar 2019)
  11. "Primordial Non-Gaussianity", arXiv:1903.04409 (Mar 2019)
  12. "Messengers from the Early Universe: Cosmic Neutrinos and Other Light Relics", arXiv:1903.04763 (Mar 2019)
  13. "Mass Calibration of Optically Selected DES Clusters Using a Measurement of CMB-cluster Lensing with SPTpol Data", The Astrophysical Journal, Volume 872, Issue 2, article id. 170, 14 pp. (2019) (Feb 2019)
  14. "Dark Energy Survey Year 1 results: Methodology and projections for joint analysis of galaxy clustering, galaxy lensing, and CMB lensing two-point functions", Physical Review D, Volume 99, Issue 2, id.023508 (Jan 2019)
  15. "Spectroscopic Confirmation of Five Galaxy Clusters at z > 1.25 in the 2500 deg2 SPT-SZ Survey", The Astrophysical Journal, Volume 870, Issue 1, article id. 7, 16 pp. (2019) (Jan 2019)
  16. "Cluster Cosmology Constraints from the 2500 deg$^2$ SPT-SZ Survey: Inclusion of Weak Gravitational Lensing Data from Magellan and the Hubble Space Telescope", arXiv:1812.01679 (Dec 2018)
  17. "Dark Energy Survey Year 1 Results: A Precise H0 Estimate from DES Y1, BAO, and D/H Data", Monthly Notices of the Royal Astronomical Society, Volume 480, Issue 3, p.3879-3888 (Nov 2018)
  18. "Maps of the Southern Millimeter-wave Sky from Combined 2500 deg2 SPT-SZ and Planck Temperature Data", The Astrophysical Journal Supplement Series, Volume 239, Issue 1, article id. 10, 14 pp. (2018) (Nov 2018)
  19. "Measurement of the Splashback Feature around SZ-selected Galaxy Clusters with DES, SPT and ACT", arXiv:1811.06081 (Nov 2018)
  20. "Measuring Cross-Spectra of the Cosmic Infrared Background from 95 to 1200 GHz", arXiv:1810.10643 (Oct 2018)

Latest Conference Proceedings
  1. "Year two instrument status of the SPT-3G cosmic microwave background receiver", Proceedings of the SPIE, Volume 10708, id. 1070803 21 pp. (2018) (Jul 2018)
  2. "Integrated performance of a frequency domain multiplexing readout in the SPT-3G receiver", Proceedings of the SPIE, Volume 9914, id. 99141D 11 pp. (2016) (Jul 2016)
  3. "SPT-3G: a next-generation cosmic microwave background polarization experiment on the South Pole telescope", Proceedings of the SPIE, Volume 9153, id. 91531P 21 pp. (2014) (Jul 2014)
  4. "Performance and on-sky optical characterization of the SPTpol instrument", Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI. Proceedings of the SPIE, Volume 8452, article id. 84521F, 15 pp. (2012) (Sep 2012)
  5. "SPTpol: an instrument for CMB polarization measurements with the South Pole Telescope", Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI. Proceedings of the SPIE, Volume 8452, article id. 84521E, 18 pp. (2012) (Sep 2012)
  6. "Feedhorn-coupled TES polarimeter camera modules at 150 GHz for CMB polarization measurements with SPTpol", Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI. Proceedings of the SPIE, Volume 8452, article id. 84523A, 15 pp. (2012) (Sep 2012)
  7. "Design and characterization of 90 GHz feedhorn-coupled TES polarimeter pixels in the SPTPol camera", Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI. Proceedings of the SPIE, Volume 8452, article id. 845239, 12 pp. (2012) (Sep 2012)
  8. "South Pole Telescope software systems: control, monitoring, and data acquisition", Software and Cyberinfrastructure for Astronomy II. Proceedings of the SPIE, Volume 8451, article id. 84510T, 11 pp. (2012) (Sep 2012)
  9. "SPTpol: an instrument for CMB polarization", THE THIRTEENTH INTERNATIONAL WORKSHOP ON LOW TEMPERATURE DETECTORS-LTD13. AIP Conference Proceedings, Volume 1185, pp. 511-514 (2009) (Dec 2009)
  10. "SPT-SZ: a Sunyaev-ZePdovich survey for galaxy clusters", THE THIRTEENTH INTERNATIONAL WORKSHOP ON LOW TEMPERATURE DETECTORS-LTD13. AIP Conference Proceedings, Volume 1185, pp. 475-477 (2009) (Dec 2009)

 
Visitors
Past Visitors:
  1. Graeme Addison, University of Oxford (2011)
  2. Kenneth Nollett, Argonne National Laboratory (2009)
  3. Jonathan Sievers, Canadian Institute for Theoretical Astrophysics (2009)
  4. Matthew McQuinn, Harvard University (2008)
  5. Laurie Shaw, McGill University (2008)