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Bradford A. Benson
Wilson Fellow and Associate Scientist at Fermi National Accelerator Laboratory; KICP Senior member
Ph.D., Physics, Stanford University, 2004
Contact Information Phone: (773) 702-6452 Location: ERC 435 Email: bbenson astro.uchicago.edu WWW: Web Site Research I am an experimental cosmologist and mm-wavelength astronomer whose research focuses on studies of structure formation, and measurements of fine-scale cosmic microwave background (CMB) temperature and polarization anisotropy. I am interested in the following questions: What is the nature of dark energy? What is the energy scale of Inflation? What is the mass of the neutrino? What was the nature of the first stars, galaxies, and active galactic nuclei in the universe? How did they affect the growth of cosmic structures? In his free time, Brad loves to travel, hike, and see live music. His favorite place to visit for hiking and adventure is New Zealand (on his way to the South Pole), and loves seeing music at classic Chicago venues like Thalia Hall and the Empty Bottle. Ongoing Scientific Projects: Past Scientific Projects: Interferometric Sunyaev-Zel'dovich Effect Imaging Experiment (SZE) KICP Highlights & News - Next-gen camera for South Pole Telescope takes data on early universe, UChicago News
- Congratulations to Brad Benson, KICP News
- Cosmologists Can't Agree on the Hubble Constant, American Physical Society
- The Event Horizon Telescope's historic quest, KICP News
- SPT-3G Camera Has Shipped to the South Pole, KICP News
- South Pole's next generation of discovery, The University of Chicago News Office
- Chicago blues and the science in sound, The University of Chicago News Office
- Detection of B-mode Polarization in the Cosmic Microwave Background with Data from the South Pole Telescope, KICP News
- 'Nuisance' data lead to surprising star-birth discovery, The University of Chicago News Office
- Pizza with Professors, KICP News
- The Cosmic Microwave Background: A New View from the South Pole, AMNH Science Bulletin
- Phoenix Rising: A Galaxy Cluster That's Breaking Cosmic Records, Kavli Foundation News
- Phoenix Cluster Sets Record Pace at Forming Stars, NASA
- Giant galaxy cluster sets record pace for creating stars, The University of Chicago News Office
- The South Pole Telescope Measures Small-scale Structure of the Cosmic Microwave Background to Unprecedented Precision, KICP Highlight
- South Pole Telescope homes in on dark energy, neutrinos, The University of Chicago News Office
- Secondary anisotropy of the Cosmic Microwave Background detected with the South Pole Telescope, KICP Highlight
- New Population of High-Redshift Star-Forming Galaxies Discovered with the South Pole Telescope, KICP Highlight
- Galaxy clusters discovered with the South Pole Telescope, KICP Highlight
- First light for the South Pole Telescope!, SPT website
Talks, Lectures, & Workshops - KICP Workshop, Workshop: The Future of H0: Crisis or Concordance? (organizer)
- KICP Workshop, Workshop: Joint SPT-DES Analysis (organizer)
- KICP Summer School, Summer School: CMB Detectors and Instrumentation (instructor)
- PhD Thesis Defense, Laura M Mocanu, "Measuring the cosmic microwave background gravitational lensing potential and its power spectrum with SPTpol"
- PhD Thesis Defense, Tyler Natoli, "A Search for Transient Sources in the First 100 deg2 of SPTpol Data"
- KICP Postdocs Symposium, Winter 2015 Postdocs Symposium (organizer)
- KICP Postdocs Symposium, Fall 2014 Postdocs Symposium (organizer)
- KICP Talk, Adler After Dark: Bradford Benson, "Unveiling the Dark Universe with the South Pole Telescope"
- KICP Talk, KICP at GLPA Conference: Bradford Benson, Lindsey Bleem, Randall H. Landsberg, & Mark SubbaRao, "Unmasking the Universe with the CMB, Nature's Ultimate Backlight"
- KICP Seminar, Thermal Detectors: Recent Applications, Lessons Learned, and Future Directions
- KICP Event, SWIP/KICP Pizza with Professors
- KICP Talk, Bradford Benson: "The Ends of the Earth & the Beginning of the Universe: The Big Bang, Dark Energy & the South Pole"
- KICP Event, NASA Teleconference About Record-Breaking Galaxy Cluster
- KICP Postdocs Symposium, Spring 2012 Postdocs Symposium
- KICP Workshop, The 4th Neutrino (organizer)
- KICP Talk, Cafe Scientifique: Brad Benson, "The Ends of the Earth & the Beginning of the Universe: The Big Bang, Dark Energy & the South Pole"
- KICP Seminar, Observing the Evolution of the Universe through the CMB
- KICP Postdocs Symposium, Fall 2010 Postdocs Symposium
- KICP Postdocs Symposium, Winter 2010 Postdocs Symposium
- KICP Yerkes Institute, The Physics of Sound, Yerkes Summer Institute (instructor)
Currently in Committees - Fellowship committee
- Conferences, Workshops and Visitors committee
KICP Publications 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008Latest Journal Publications - "The SPTpol Extended Cluster Survey", arXiv:1910.04121 (Oct 2019)
- "Measurements of B-mode Polarization of the Cosmic Microwave Background from 500 Square Degrees of SPTpol Data", arXiv:1910.05748 (Oct 2019)
- "An X-ray Detection of Star Formation In a Highly Magnified Giant Arc", arXiv:1910.05343 (Oct 2019)
- "Constraints on Cosmological Parameters from the 500 deg$^2$ SPTpol Lensing Power Spectrum", arXiv:1910.07157 (Oct 2019)
- "CMB-S4", Astro2020: Decadal Survey on Astronomy and Astrophysics, APC white papers, no. 209; Bulletin of the American Astronomical Society, Vol. 51, Issue 7, id. 209 (2019) (Sep 2019)
- "Measurement of the splashback feature around SZ-selected Galaxy clusters with DES, SPT, and ACT", Monthly Notices of the Royal Astronomical Society, Volume 487, Issue 2, p.2900-2918 (Aug 2019)
- "Dark Energy Survey Year 1 Results: Cross-correlation between Dark Energy Survey Y1 galaxy weak lensing and South Pole Telescope+P l a n c k CMB weak lensing", Physical Review D, Volume 100, Issue 4, id.043517 (Aug 2019)
- "Compact millimeter-wavelength Fourier-transform spectrometer", Applied Optics, vol. 58, issue 23, p. 6257 (Aug 2019)
- "Measurements of the Cross-spectra of the Cosmic Infrared and Microwave Backgrounds from 95 to 1200 GHz", The Astrophysical Journal, Volume 881, Issue 2, article id. 96, 12 pp. (2019) (Aug 2019)
- "Dark Energy Survey Year 1 Results: Tomographic cross-correlations between Dark Energy Survey galaxies and CMB lensing from South Pole Telescope +Planck", Physical Review D, Volume 100, Issue 4, id.043501 (Aug 2019)
- "Dark Energy Survey year 1 results: Joint analysis of galaxy clustering, galaxy lensing, and CMB lensing two-point functions", Physical Review D, Volume 100, Issue 2, id.023541 (Jul 2019)
- "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)
- "Consistency of cosmic microwave background temperature measurements in three frequency bands in the 2500-square-degree SPT-SZ survey", Journal of Cosmology and Astroparticle Physics, Issue 07, article id. 038 (2019) (Jul 2019)
- "Fractional Polarisation of Extragalactic Sources in the 500-square-degree SPTpol Survey", arXiv:1907.02156 (Jul 2019)
- "CMB-S4 Science Case, Reference Design, and Project Plan", arXiv:1907.04473 (Jul 2019)
- "A Detection of CMB-Cluster Lensing using Polarization Data from SPTpol", arXiv:1907.08605 (Jul 2019)
- "Galaxy Clusters Selected via the Sunyaev-Zel'dovich Effect in the SPTpol 100-Square-Degree Survey", arXiv:1907.09621 (Jul 2019)
- "On-sky performance of the SPT-3G frequency-domain multiplexed readout", arXiv:1907.10947 (Jul 2019)
- "Performance of Al-Mn Transition-Edge Sensor Bolometers in SPT-3G", arXiv:1907.11976 (Jul 2019)
- "CMB-S4 Decadal Survey APC White Paper", arXiv:1908.01062 (Jul 2019)
Latest Conference Proceedings - "Broadband anti-reflective coatings for cosmic microwave background experiments", Proceedings of the SPIE, Volume 10708, id. 1070843 13 pp. (2018) (Jul 2018)
- "Characterization and performance of the second-year SPT-3G focal plane", Proceedings of the SPIE, Volume 10708, id. 107081Z 13 pp. (2018) (Jul 2018)
- "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)
- "Design and characterization of the SPT-3G receiver", Proceedings of the SPIE, Volume 10708, id. 107081H 11 pp. (2018) (Jul 2018)
- "X-ray Scaling Relations of SPT Selected Galaxy Clusters Observed with XMM-Newton", American Astronomical Society, AAS Meeting #229, id.404.09 (Jan 2017)
- "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)
- "Large arrays of dual-polarized multichroic TES detectors for CMB measurements with the SPT-3G receiver", Proceedings of the SPIE, Volume 9914, id. 991417 11 pp. (2016) (Jul 2016)
- "Still Red and Dead? Measuring feedback and star-formation in clusters at z > 1", American Astronomical Society, AAS Meeting #228, id.118.07 (Jun 2016)
- "Sunyaev Zel'dovich Cluster Surveys", American Astronomical Society, HEAD meeting #14, id.102.01 (Aug 2014)
- "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)
Visitors Past Visitors: - Sebastian Bocquet, LMU Munich (2015)
- Fabian Koehlinger, Leiden Observatory (2015)
- Alexander van Engelen, Canadian Institute for Theoretical Astrophysics (2015)
- Rahlin Alexandra, Princeton University (2014)
- Neelima Sehgal, KIPAC, Stanford University (2011)
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