John E. Carlstrom

Subramanyan Chandrasekhar Distinguished Service Professor, Dept. of Astronomy & Astrophysics, Dept. of Physics, Enrico Fermi Institute, and the College; Director, Center for Astrophysical Research in Antarctica (CARA)
Deputy Director of the PFC and the KICP

Ph.D., California/Berkeley, 1988
Contact Information
Phone: (773) 834-0269
Location: LASR 109
WWW: Web Site
The South Pole Telescope, SPT.
Observational cosmology using new instruments to measure the primary anisotropy in the Cosmic Microwave Background (CMB) radiation and the Sunyaev-Zeldovich Effect. Leader of the Degree Angular Scale Interferometer (DASI) project. DASI, a unique 13 element compact interferometric array located at the NSF Amundsen-Scott South Pole station, recently reported detection of the harmonic peaks in the CMB angular power spectrum. The new DASI data was used to set tight constraints on cosmological parameters, such as the curvature of the universe (1.04 - 0.06) and the fractional amounts of baryonic and cold dark matter. The results provide further support for Inflationary models for the origin of the universe. Current DASI observations are directed toward measuring the polarization of the CMB anisotropy.
Interferometric techniques are also used for detailed imaging of the CMB which has been scattered by hot gas associated with clusters of galaxies, the Sunyaev Zeldovich effect (SZE). The intensity of the SZE for a cluster is independent of its distance making the SZE an ideal cosmological probe. Combining SZE measurements with x-ray observations allows an independent determination of the expansion history of the universe, as well as detailed information about these extremely large structures. A major expansion of this project, which includes building a dedicated six element array of telescopes, has recently been funded. The factor of 100 increase in imaging speed provided by the new array will enable a SZE survey of the high redshift universe over a region of roughly 12 square degrees.

Ongoing Scientific Projects:

Past Scientific Projects: Degree Angular Scale Interferometer (DASI) | QUaD
KICP Highlights & News

Talks, Lectures, & Workshops

Currently in Committees
  • Budget and Policy committee
  • Wednesday Colloquium committee
  • Appointments committee (Chair)
  • PFC Executive committee
  • LASR Space committee

KICP Publications
2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001

Latest Journal Publications
  1. "Neutrino physics from the cosmic microwave background and large scale structure", Astroparticle Physics, Volume 63, p. 66-80 (Mar 2015)
  2. "Inflation physics from the cosmic microwave background and large scale structure", Astroparticle Physics, Volume 63, p. 55-65 (Mar 2015)
  3. "Measurement of Galaxy Cluster Integrated Comptonization and Mass Scaling Relations with the South Pole Telescope", The Astrophysical Journal, Volume 799, Issue 2, article id. 137, 14 pp. (2015) (Feb 2015)
  4. "The nature of the [CII] emission in dusty star-forming galaxies from the SPT-survey", arXiv:1501.06909 (Jan 2015)
  5. "A Measurement of the Cosmic Microwave Background Gravitational Lensing Potential from 100 Square Degrees of SPTpol Data", arXiv:1412.4760 (Dec 2014)
  6. "A Measurement of Gravitational Lensing of the Cosmic Microwave Background by Galaxy Clusters Using Data from the South Pole Telescope", arXiv:1412.7521 (Dec 2014)
  7. "Spitzer Imaging of Massive z>1 SZ-Selected Galaxy Clusters", Spitzer Proposal ID #11096 (Dec 2014)
  8. "The CARMA Paired Antenna Calibration System: Atmospheric Phase Correction for Millimeter Wave Interferometry and its Application to Mapping the Ultraluminous Galaxy Arp 193", arXiv:1410.5560 (Oct 2014)
  9. "SPT-CL J2040-4451: An SZ-selected Galaxy Cluster at z = 1.478 with Significant Ongoing Star Formation", The Astrophysical Journal, Volume 794, Issue 1, article id. 12, 14 pp. (2014) (Oct 2014)
  10. "The Redshift Evolution of the Mean Temperature, Pressure, and Entropy Profiles in 80 SPT-Selected Galaxy Clusters", The Astrophysical Journal, Volume 794, Issue 1, article id. 67, 16 pp. (2014) (Oct 2014)
  11. "The Massive and Distant Clusters of WISE Survey I: Sunyaev-Zel'dovich Masses of Galaxy Clusters at $z sim 1$", arXiv:1410.2355 (Oct 2014)
  12. "The XXL Survey. V. Detection of the Sunyaev-Zel'dovich Effect of the Redshift 1.9 Galaxy Cluster XLSSU J021744.1-034536 with CARMA", The Astrophysical Journal, Volume 794, Issue 2, article id. 157, 8 pp. (2014) (Oct 2014)
  13. "Optical Spectroscopy and Velocity Dispersions of Galaxy Clusters from the SPT-SZ Survey", The Astrophysical Journal, Volume 792, Issue 1, article id. 45, 17 pp. (2014) (Sep 2014)
  14. "Galaxy Clusters Discovered via the Sunyaev-Zel'dovich Effect in the 2500-square-degree SPT-SZ survey", arXiv:1409.0850 (Sep 2014)
  15. "A measurement of secondary cosmic microwave background anisotropies from the 2500-square-degree SPT-SZ survey", arXiv:1408.3161 (Aug 2014)
  16. "Slaying Systematics: Maximizing Cosmological Power from HST-Measured Weak Lensing Masses of High-Redshift Clusters", NOAO Proposal ID #2014B-0338 (Aug 2014)
  17. "Mass Calibration and Cosmological Analysis of the SPT-SZ Galaxy Cluster Sample Using Velocity Dispersion $sigma_v$ and X-ray $Y_ extrm{X}$ Measurements", arXiv:1407.2942 (Jul 2014)
  18. "Analysis of Sunyaev-Zel'dovich Effect Mass-Observable Relations using South Pole Telescope Observations of an X-ray Selected Sample of Low Mass Galaxy Clusters and Groups", arXiv:1407.7520 (Jul 2014)
  19. "Constraints on the CMB temperature evolution using multiband measurements of the Sunyaev-Zel'dovich effect with the South Pole Telescope", Monthly Notices of the Royal Astronomical Society, Volume 440, Issue 3, p.2610-2615 (May 2014)
  20. "The Rest-frame Submillimeter Spectrum of High-redshift, Dusty, Star-forming Galaxies", The Astrophysical Journal, Volume 785, Issue 2, article id. 149, 16 pp. (2014) (Apr 2014)

Latest Conference Proceedings
  1. "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)
  2. "Measurement of the cosmological distance scale using X-ray and Sunyaev-Zel'dovich effect observations of galaxy clusters", Advancing the Physics of Cosmic Distances, Proceedings of the International Astronomical Union, IAU Symposium, Volume 289, pp. 339-343 (Feb 2013)
  3. "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)
  4. "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)
  5. "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)
  6. "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)
  7. "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)
  8. "Calculating Cluster Masses via the Sunyaev-Zel'dovich Effect", American Astronomical Society, AAS Meeting #220, #507.03 (May 2012)
  9. "Discovery of a Galaxy Cluster Merger in Unexplored Merger Phase-space", American Astronomical Society, AAS Meeting #219, #223.07 (Jan 2012)
  10. "Polarization Calibration of the QUaD Experiment", Astronomical Polarimetry 2008: Science from Small to Large Telescopes. Proceedings of a Workshop held at Fairmont Le Manoir Richelieu, La Malbaie, Quebec, Canada 6-11 July 2008. Edited by Pierre Bastien, Nadine Manset, Dan P. Clemens, and Nicole St-Louis.

Past Visitors:
  1. Nipanjana Patra, Raman Research Institute (2014)
  2. Rashid Sunyaev, Max-Planck Institute for Astrophysics (2014)
  3. Megan Eckart, NASA/GSFC (2013)
  4. Eduardo Rozo, SLAC (2013)
  5. Christopher Sheehy, University of Minnesota (2013)
  6. Yashar Hezaveh, McGill University (2012)
  7. Gilbert Holder, McGill University (2012)
  8. Douglas Applegate, KIPAC/Stanford/SLAC (2011)
  9. James Bock, Jet Propulsion Laboratory (2011)
  10. Liu Jiayi, Ludwig-Maximilians University, Munich (2011)
  11. Steven Allen, KIPAC, Stanford University (2009)
  12. Gil Holder, McGill University (2009)
  13. James Bartlett, Astroparticule et Cosmologie, Universite Paris Diderot (2008)
  14. James Bock, California Institute of Technology (2008)
  15. Wick Haxton, University of Washington (2008)
  16. Gilbert Holder, McGill University (2008)
  17. Leslie Rosenberg, University of Washington (2008)
  18. Laurie Shaw, McGill University (2008)
  19. Massimiliano Bonamente, University of Alabama, Huntsville (2007)
  20. Keith Grainge, Cambridge University (2007)
  21. Marshall Joy, NASA, Marshall Space Flight Center (2007)
  22. Fred Lo, National Radio Astronomy Observatory (2007)
  23. Graham Smith, University of Birmingham (2007)
  24. William Holzapfel, University of California, Berkeley (2005)
  25. Lev Kofman, Canadian Institute for Theoretical Astrophysics (2005)
  26. Sunil Golwala, California Institute of Technology (2004)
  27. Gil Holder, McGill University (2004)
  28. Avi Loeb, Harvard University (2004)
  29. Ian McCarthy, University of Victoria (2004)
  30. Max Tegmark, University of Pennsylvania (2004)
  31. Jonas Zmuidzinas, California Institute of Technology (2004)
  32. Mike Gladders, Carnegie Institution (2003)
  33. Pengjie Zhang, Fermi National Accelerator Laboratory (2003)
  34. Philip Farese, University of California, Santa Barbara (2002)
  35. Paul Steinhardt, Princeton University (2002)
  36. Tony Tyson, Bell Labs Lucent Technologies (2002)
  37. Paul Vanden Bout, National Radio Astronomy Observatory (2002)
  38. David Woody, California Institute of Technology (2002)
  39. Jose Diego, University (2001)
  40. Joe Mohr, University of Illinois (2001)