Talks, Seminars, and Colloquia
Below you'll find slides from talks I've given about my research and from more general public talks. Though they are not designed to serve as comprehensive pedagogical material without the accompanying talk, I hope that they will serve as a useful reference to people who have heard me give these talks.
All talks are licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Fellow astrophysicists should feel free to use these slides with attribution. Most of the presentations rely on multimedia content and animations, so they are only available in the original Keynote or Powerpoint formats. Email me if you'd like something else.
Public Talks
Making the Largest-Ever 3D Maps of our Universe. Berkeley Astronomy Department’s Astro Night. Public talk. Berkeley, CA, August 1, 2019
Making the Largest-Ever 3D Maps of our Universe. Mount Tam Astronomy Program, part of Wonderfest: The Bay Area Beacon of Science. Invited public talk. Mill Valley, CA, May 11, 2019
Making the Largest-Ever 3D Maps of our Universe. San Francisco Amateur Astronomers. Invited public talk. Randall Museum, San Francisco, CA, October 18, 2018
Making the Largest-Ever 3D Maps of our Universe. Adler After Dark. Invited public talk. Adler Planetarium, Chicago, IL, March 15, 2018
Making the Largest-Ever 3D Maps of our Universe. Science@Cal Lecture Series. Invited public talk. Berkeley, CA, December 16, 2017.
It's Always Darkest Before the Cosmic Dawn. Invited public talk. MIT Kavli Institute Frontiers of Astronomy, Astrophysics, and Space Science lecture series, Cambridge, MA, January 16, 2014.
Professional Talks and Presentations
Recent Progress in 21 cm Cosmology with HERA. Line Intensity Mapping 2024, University of Illinois, Urbana-Champaign, Urbana, IL. June 13, 2024
Recent Progress in 21 cm Cosmology with the Hydrogen Epoch of Reionization Array. KICP Seminar, University of Chicago. Invited Talk. Chicago, IL. February 22, 2024.
21 cm Cosmology with HERA. Shedding New Light on the First Billion Years of the Universe. Invited Talk. 16th Edition of the GECO Team Conference Cycle, Marseille, France (delivered remotely). July 3, 2023
Opening the 21 cm Window on our Cosmic Dawn. University of Waterloo Special Physics and Astronomy Seminar. Invited Talk. April 19, 2023.
Recent Progress in 21 cm Cosmology with HERA. Raman Research Institute, Bengaluru, Karnataka, India. Invited talk (delivered remotely). February 21, 2023.
Opening the 21 cm Window on our Cosmic Dawn. York University Special Astrophysics Seminar. Invited Talk. Toronto, ON, Canada. February 17, 2023.
Improved Constraints on the 21 cm EoR Power Spectrum with HERA. 241st Meeting of the American Astronomical Society. Seattle, WA. January 12, 2023.
Recent Progress in High-Redshift 21 cm Cosmology with HERA. PUMA Collaboration Meeting. Invited talk. Held online. December 13, 2022.
Recent Progress in 21 cm Cosmology with HERA. McWillians Center for Cosmology Astrolunch. Invited talk. Carnegie Mellon University. Pittsburgh, PA. December 2, 2022.
Improved Constraints on the 21 cm EoR Power Spectrum and the X-Ray Heating of the IGM with HERA. 5th Global 21-cm Workshop. Berkeley, CA. October 17, 2022.
High-Redshift 21 cm Cosmology. Cosmology from Home. Invited plenary talk. Held online (video link). July 6, 2022.
21 cm Cosmology. Reionization and Cosmic Dawn: Looking Forward To the Past. Berkeley Center for Cosmological Physics Workshop. Invited overview talk. Berkeley, CA. March 22, 2022.
What’s next for HERA? SAZERAC 21cm 2022, Held online. March 14, 2022.
HERA Calibration and Analysis. First Results from the Hydrogen Epoch of Reionization Array, Specialist Discussion Meeting at the Royal Astronomical Society. Invited talk. Held online. December 10, 2021.
What’s next for the Hydrogen Epoch of Reionization Array? Science at Low Frequencies VIII. Held Online. December 7, 2021.
First Upper Limits from HERA on the 21 cm Power Spectrum. CMB-S4 Summer Workshop. Invited talk. Held online. August 12, 2021.
First Upper Limits from HERA on the 21 cm Power Spectrum. SAZERAC 2.0. Held online. June 17, 2021.
Precision Analysis for 21 cm Cosmology with HERA and Beyond. Washington University in St. Louis, Department of Physics Special Research Seminar. Invited talk. Held online. April 22, 2021.
Opening the 21 cm Window on Our Cosmic Dawn. Washington University in St. Louis, Department of Physics Colloquium. Invited talk. Held online. April 21, 2021
Calibration and Foreground Mitigation for HERA. SAZERAC: The 21-cm Signal from Cosmic Dawn and the Epoch of Reionisation. Held online. January 29, 2021.
Precision Calibration for 21 cm Cosmology with HERA. URSI National Radio Sciences Meeting. Held online. January 8, 2021.
Precision Calibration for 21 cm Cosmology with the Hydrogen Epoch of Reionization Array. Harvard-Smithsonian CfA Galaxies & Cosmology Seminar. Invited talk. Held online.
October 5, 2020.
Precision Calibration for 21cm Cosmology with HERA. Cosmology from Home. Held online (video link). September 3, 2020.
Redundant-Baseline Calibration: Lessons from HERA for 21 cm Cosmology. PUMA Collaboration Meeting. Invited talk. Held online. August 13, 2020.
Redundant-Baseline Calibration: Lessons from HERA for 21 cm Cosmology. KIPAC Tea Talk. Menlo Park, CA. January 17, 2020.
Opening the 21 cm Window on our Cosmic Dawn. Stanford Astrophysics Colloquium. Invited talk. Stanford, CA. January 16, 2020.
Redundant-Baseline Calibration of the Hydrogen Epoch of Reionization Array. 235th Meeting of the American Astronomical Society. Honolulu, HI, January 5, 2020.
Redundant-Baseline Calibration of the Hydrogen Epoch of Reionization Array. 18th Annual Symposium of the NSF Astronomy & Astrophysics Postdoctoral Fellows. Invited talk. Honolulu, HI, January 3, 2020.
Precision Calibration for 21 cm Cosmology with HERA. Science at Low Frequencies VI, Arizona State University, Tempe, AZ. December 11, 2019.
Opening the 21 cm Window on Our Cosmic Dawn with HERA. ObsCos Seminar. Caltech, Pasadena, CA. November 14, 2019.
Realizing the Promise of 21 cm Cosmology with HERA. Lines in the Large-Scale Structure. Marseille, France. July 10, 2019.
Opening the 21 cm Window on Our Cosmic Dawn. Special Astrophysics Seminar. Columbia University, New York, NY. February 7, 2019.
Mitigating the Effects of Antenna-to-Antenna Variation on Redundant-Baseline Calibration for 21 cm Cosmology. 233rd Meeting of the American Astronomical Society. Seattle, WA, January 10, 2019.
Fast Fourier Transform Telescopes. 17th Annual Symposium of the NSF Astronomy & Astrophysics Postdoctoral Fellows. Invited talk. Seattle, WA, January 5, 2019.
Opening the 21 cm Window on Our Cosmic Dawn with HERA. Nuclear, Particle, and Astrophysics Seminar. Invited talk. Yale University, New Haven, CT. December 13, 2018.
Opening the 21 cm Window on Our Cosmic Dawn. Future by the Future: Workshop on the Vision for the Next Decades in Astrophysics with Gravitational Waves and Other Cosmic Messengers. Invited talk. Columbia University, New York City, NY. November 30, 2018.
Realizing the Promise of 21 cm Cosmology with HERA. Thirteenth Conference on the Intersections of Particle and Nuclear Physics. Invited Talk. Indian Wells, CA. May 30, 2018.
Precision Calibration for HERA and 21 cm Cosmology. Cosmological Signals from Cosmic Dawn to the Present. Aspen Center for Physics, Aspen, CO. February 8, 2018.
Realizing the Promise of 21 cm Cosmology with HERA. NSF AAPF Symposium. Invited talk. National Harbor, MD, January 8, 2018.
Precision Calibration for HERA and 21 cm Cosmology. IAU Symposium 333: Peering towards Cosmic Dawn. Dubrovnik, Croatia, October 3, 2017.
The Hydrogen Epoch of Reionization Array. Cosmology on Safari. KwaZulu-Natal, South Africa, February 13, 2017.
The Hydrogen Epoch of Reionization Array. Cosmology with Neutral Hydrogen. Berkeley Center for Cosmological Physics, University of California, Berkeley, January 11, 2017.
Precision Calibration for 21 cm Cosmology. URSI National Radio Sciences Meeting. Boulder, CO, January 4, 2017.
Modeling Error Bias and How Not to Calibrate a 21 cm Interferometer. Berkeley Astronomy Department Colloquium Lunch. University of California, Berkeley. October 20, 2016.
The Advantages of Massive, Redundant Arrays. U.S. Radio/Millimeter/Submillimeter Science Futures II. Invited Talk. Baltimore, MD. August 4, 2016.
Power Spectrum Estimation from 3-D Maps. HI 21 cm Cosmology Workshop. Invited talk. SOC member. Kavli Institute for Cosmology, Cambridge, UK. June 29, 2016.
It's Always Darkest Before the Cosmic Dawn: First Generation 21 cm Results and Lessons for Next-Generation Arrays. University of California, Santa Cruz CosmoClub. Invited talk. Santa Cruz, CA. April 25, 2016.
It's Always Darkest Before the Cosmic Dawn: First Generation 21 cm Results and Lessons for Next-Generation Arrays. Institute for Nuclear and Particle Astrophysics Seminar. Invited talk. Lawrence Berkeley National Laboratory, Berkeley, CA. April 1, 2016.
21cm Power Spectrum Estimation in Theory and in Practice: Statistical Techniques and Results from PAPER and the MWA. Cosmology and First Light. Institut d'astrophysique de Paris. Paris, France. December 9, 2015.
21cm Power Spectrum Estimation in Theory and in Practice: Statistical Techniques and Early Results from the MWA. The Olympian Symposium 2015: Cosmology and the Epoch of Reionization. Mount Olympus, Greece. May 22, 2015.
It's Always Darkest Before the Cosmic Dawn: Early Results from Novel Tools and Telescopes for 21 cm Cosmology. MIT Thesis Defense. Cambridge, MA. April 17, 2015.
It's Always Darkest Before the Cosmic Dawn. Invited talk. CCAPP Seminar, The Ohio State University. Columbus, OH. March 17, 2015.
Chasing the Cosmic Dawn: 21 cm Cosmology Analysis Tools and Early Results. Dissertation Talk. 225th Meeting of the American Astronomical Society. Seattle, WA, January 8, 2015.
Power Spectrum Estimation in Theory and in Practice. Tempe 2014: Early Science from Low Frequency Radio Telescopes. Tempe, AZ, December 10, 2014.
Chasing the Cosmic Dawn with 21 cm Tomography. Invited talk. CfA ITC Luncheon, Cambridge, MA, October 30, 2014.
Chasing the Cosmic Dawn with 21 cm Tomography. KIPAC Tea Talk, Menlo Park, CA, October 24, 2014.
Chasing the Cosmic Dawn with 21 cm Tomography. Invited talk. Berkeley Center for Cosmological Physics Seminar, Berkeley, CA, October 21, 2014.
Chasing the Cosmic Dawn with 21 cm Tomography. Invited talk. UW Dark Universe Science Center Seminar, Seattle, WA, August 27, 2014.
Chasing the Cosmic Dawn with 21 cm Tomography. Invited talk. Brown Astrophysics Seminar Series, Providence, RI, February 26, 2014.
Chasing the Cosmic Dawn with 21 cm Tomography. Invited talk. UChicago Kavli Institute Friday noon seminar, Chicago, IL, February 21, 2014.
It's Always Darkest Before the Cosmic Dawn. Invited talk. MIT Physics Graduate Student Council ``Kaleidoscope" lunch series, Cambridge, MA, February 12, 2014.
MITEoR: A Prototype Highly Scalable Interferometer for 21 cm Cosmology. Invited talk on behalf of H. Zheng. At the URSI National Radio Sciences Meeting, Boulder, CO, January 10, 2014.
Applications of Fast 21 cm Power Spectrum Estimation. Invited talk. At the URSI National Radio Sciences Meeting, Boulder, CO, January 9, 2014.
Big Data from Big Telescopes: Scaling up to Precision 21 cm Cosmology. CAASTRO's Reionization in the Red Centre: New windows on the high redshift Universe, Ayers Rock Resort, Australia, July 17, 2013.
Fast Power Spectrum Estimation from Real 21 cm Data. Invited talk. At Innovative Techniques in 21 cm Analysis, The Ohio State University, April 18, 2013.
It's Always Darkest Before the Cosmic Dawn. 62nd Lindau Nobel Laureate Meeting, Lindau, Germany, July 5, 2012.
Fast Power Spectrum Analysis and Foreground Subtraction for 21 cm Cosmology. American Astronomical Society Meeting, Boston, MA, May 24, 2011.