Ongoing Research


The Greenland Neutrino Observatory is a next-generation radio detector for ultra-high energy neutrinos. We tested a prototype detector at Summit Station Greenland in June 2015, and are leading the development effort.

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BICEP3 is an experiment that observes the microwave sky on degree angular scales to make precision measurements of the polarization of the Cosmic Microwave Background. BICEP3 follows up on the detection of B-mode polarization by BICEP2, looking for the pattern imprinted on the CMB by gravitational waves created during Inflation. After a successful integration and installation at South Pole, BICEP3’s first light was on January 18, 2015, and it has been observing ever since.

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The Keck Array

The Keck Array is an array of five polarimeters of similar design to BICEP2. It has the same science goals as the BICEP series of instruments, but with a factor of five increase in the number of detectors compared to BICEP2, leading to increased sensitivity. The Keck Array has been observing since 2012, and since 2015 has been observing at three frequencies (95, 150, and 220 GHz).

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The ANITA experiment is a NASA long-duration balloon experiment that detects the radio signals generated via the Askaryan effect from ultra-high energy neutrinos interacting in the Antarctic ice sheet. The third flight of ANITA flew in December 2014 for 22 days in Antarctica, with world-leading sensitivity to the highest energy neutrinos. The fourth flight of ANITA is scheduled for December 2016.

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Recent Publications and News


"Accelerator Measurements of Magnetically-induced Radio Emission from Particle Cascades with Applications to Cosmic-ray Air Showers", arXiv:1507.07296 (Jul 2015)

"Energy and Flux Measurements of Ultra-High Energy Cosmic Rays Observed During the First ANITA Flight", arXiv:1506.05396 (Jun 2015)

"A New Technique for Detection of PeV Neutrinos Using a Phased Radio Array", arXiv:1504.08006 (Apr 2015)

"BICEP2 / Keck Array V: Measurements of B-mode Polarization at Degree Angular Scales and 150 GHz by the Keck Array", arXiv:1502.00643 (Feb 2015)

"Antenna-coupled TES bolometers used in BICEP2, Keck array, and SPIDER", arXiv:1502.00619 (Feb 2015)

"A Joint Analysis of BICEP2/Keck Array and Planck Data", Phys. Rev. Lett. 114, 101301 (2015)

"BICEP2 III: Instrumental Systematics", arXiv:1502.00608 (Feb 2015)

"BICEP2/KECK Array IV. Optical Characterization and Performance of the BICEP2 and Keck Array Experiments" , ApJ Vol. 806, Issue 206 (June 2015)

"An in situ measurement of the radio-frequency attenuation in ice at Summit Station, Greenland", arXiv:1409.5413 (Sep 2014)

"BICEP3: a 95 GHz Refracting Telescope for Degree-Scale CMB Polarization", SPIE Volume 9153

"BICEP2 2014 I: Detection of B-mode Polarization at Degree Angular Scales by BICEP2 ", Phys. Rev. Lett. 112, 241101, 2014

"BICEP2. II. Experiment and Three-Year Data Set", ApJ Vol. 792, Issue 1 (Sep 2014)

"Neutrino Physics from the Cosmic Microwave Background and Large Scale Structure", Snowmass 2013 Issue of Astroparticle Physics

"Inflation Physics from the Cosmic Microwave Background and Large Scale Structure", Snowmass 2013 Issue of Astroparticle Physics

"An interferometric analysis method for radio impulses from ultra-high energy particle showers", Astroparticle Physics, Volume 60, p. 72-85 (Jan 2015)

Our Team

Abigail Vieregg

Assistant Professor, Physics, Enrico Fermi Institute, KICP. Ph.D., UCLA, 2010.

CV . Publications . Polar Blog

Cosmin Deaconu

Postdoctoral Scholar. Ph.D. MIT 2015.

Christopher Sheehy

KICP Fellow. Ph.D. in Astronomy & Astrophysics, University of Chicago, 2013.

Andrew Ludwig

Physics Graduate Student.

Nora Shipp

Physics Graduate Student.

Sophia Kim

Physics AB, UChicago '17.

Jonathan Kyl

Physics AB, UChicago '16.

Isaac Malsky

Physics AB, UChicago '18.

John Bowen

Physics AB, UChicago '18.


Keith Bechtol

Now a John Bahcall Fellow at WIPAC at Wisconsin-Madison.

Zoheyr Doctor

Jessica Avva

Now a Graduate Student at UC Berkeley.

Christopher Hughes


Abby volunteers for Astronomy Conversations at the Adler Planetarium, an opportunity for museum guests to ask science questions to working scientists.

Chris Sheehy recently put on "Evolving Universe", a short course for Museum and Planetarium Staff.

Abby is involved in WorldWide Telescope and the WWT Ambassador's program.

In The News

Our lab's work has been featured....


On The Kavli Foundation's webpage.

In Symmetry Magazine.

In Scientific American.

Again in Symmetry Magazine.


In a podcast from McGill.

Contact Us

Our lab is part of the Kavli Insitute of Cosmological Physics in the Laboratory for Space Research at the University of Chicago.

We can be reached at 773-834-2988 or things can be shipped to Abigail Vieregg, LASR 230, University of Chicago,933 E 56th St Chicago, IL 60637.

We are always looking for new group members. Contact Professor Vieregg ( if you're interested in working with us.