She studies the origin and evolution of the universe


My research focuses on the large scale structures of our universe –– dark matter, halos, filaments, and voids. I aim to elucidate fundamental physics, such as the nature of dark energy and neutrino mass, using cosmological observations of the cosmic microwave background and galaxies together with state-of-the-art numerical simulations. I am a member of the Rubin Observatory Legacy Survey of Space and Time (LSST) Dark Energy Science Collaboration (DESC), Simons Observatory, and CMB-S4. I welcome students and postdocs to work with me on cosmology related projects. Please reach out if you are interested!


2011-2016: PhD in Astronomy, Department of Astronomy, Columbia University
2006-2008: MA in Human Resources & Industrial Relations, Carlson School of Management, University of Minnesota
2002-2006: BA in Business Management, Guangdong University Of Finance and Economics


2021-Present: Associate Professor, Kavli Institute for the Physics and Mathematics of the Universe, University of Tokyo
2019-2021: BCCP Postdoctoral Fellow, Berkeley Center For Cosmological Physics, UC Berkeley
2016-2019: NSF Postdoctoral Fellow, Department of Astrophysical Sciences, Princeton University
2012 summer: NSF EAPSI/JSPS Summer Program Fellow, Japan Aerospace Exploration Agency
2009-2011: Research Assistant, Astronomy, Columbia University


Google Scholar, Arxiv, ADS

Students Mentored

Daniela Grandón (2021-present, University of Chile), on baryonic effects (LSST DESC project)
Adrian Bayer (2020-present, Berkeley), on cosmic neutrinos (multiple projects)
Zack Li (2017-2019, Princeton), on weak lensing peak counts
Will Coulton (2017-2018, Princeton), on weak lensing bispectrum
Gabriela Marques (2017-2019, Observatório Nacional-Rio de Janeiro), on weak lensing Minknowski Functionals
Christina Kreisch (2017-2018, Princeton), on Cosmic voids

James Sunseri (2020-present, Berkeley), on baryonic effects
Geoffrey Zheng (2019 summer, Princeton), on fast neutrino code kspace neutrino
Gemma Zhang (2019-2020, Princeton), on void halos
Ayanna Mathews (2018-present, Princeton), on halo assembly bias
Ryan Golant (2017 summer, Princeton), on Gaussianizing lensing convergence maps
Alvaro Ortiz-Vazquez (2015-2016, Columbia), on cosmic shear multiplicative bias

Public Data

I put great effort into releasing my simulations. Here you can download cosmological simulation data, including snapshots, halo catalogues, merger trees, galaxy and CMB lensing maps:

I thank New Mexico State University (USA) and Instituto de Astrofisica de Andalucia CSIC (Spain) for hosting the Skies & Universes site, which made the public access to some of my data possible.


2021/07 Contributed: virtual talk at Cosmology from Home
2021/06 Invited: Seminar (remote), University Observatory Munich at the Ludwig Maximilians University, Munich, Germany
2021/04 Invited: Colloquium (remote), Caltech Astronomy, Pasadena, CA
2021/04 Invited: Colloquium (remote), University of Florida Physics, Gainesville, FL
2021/04 Invited: Colloquium (remote), Texas A&M, College Station, TX
2021/03 Invited: Colloquium (remote), Kavli IPMU, Kashiwa, Japan
2021/03 Invited: Colloquium (remote), University of Southern California, Los Angeles, CA
2021/01 Invited: Colloquium (remote), Aarhus University, Aarhus, Denmark
2020/10 Invited: Colloquium (remote), Florida Tech, Melbourne, FL
2020/10 Invited: Colloquium (remote), Leiden University, Leiden, Netherlands
2020/04 Invited: Seminar (remote) at McGill University, Montreal, Canada
2020/03 Invited: Seminar at UC San Diego, CA
2020/02 Invited: Colloquium at Purdue University, West Lafayette, IN
More (before 2020)
2019/10 Invited: Seminar at Perimeter Institute, Waterloo, Canada
2019/07 Invited: Precision Investigations of the Neutrino Sector (PINS 2019), SLAC, CA
2019/04 Invited: Seminar at University of Victoria, BC, Canada
2019/04 Invited: Rising Stars in Physics Workshop, Stanford, CA
2019/03 Invited: Dark Universe Seminar at Brandeis University, Boston, MA
2019/03 Invited: Seminar at Columbia University, New York, NY
2019/03 Invited: Princeton Thunch, Princeton, NJ
2019/02 Invited: Seminar at LBNL Institute for Nuclear and Particle Astrophysics, Berkeley, CA
2019/02 Invited: Seminar at New York University, New York, NY
2019/01 Invited: Accurate lensing in the era of precision Cosmology, UC Berkeley, CA
2018/12 Invited: Colloquium at Harvard ITC, Cambridge, MA
2018/11 Invited: Seminar at UBC, Vancouver, Canada
2018/11 Invited: Seminar at Simon Fraser University, Vancouver, Canada
2018/11 Invited: Seminar at TRIUMF, Vancouver, Canada
2018/11 Invited: Colloquium at University of Edinburgh, UK
2018/11 Invited: DAMTP Journal Club at University of Cambridge, UK
2018/11 Invited: Seminar at CEA Saclay, France
2018/10 Invited: Seminar at Institut Henri Poincaré, Paris, France
2018/09 Invited: Colloquium at University of Arizona Theoretical Astrophysics Program, Tucson, AZ
2018/07 Invited: Seminar at Caltech TAPIR, Pasadena, CA
2018/07 Invited: 8th Forum for New Leaders in Space Science, CAS-NAS, Pasadena, CA
2018/07 Invited: Unsolved Problems in Astrophysics and Cosmology, Budapest, Hungary
2018/06 Invited: PASCOS2018, Cleveland, OH
2018/05 Invited: Princeton Astronomy Advisory Council, Princeton, NJ
2018/01 Invited: Seminar at University of Science and Technology of China, Hefei, China
2018/01 Invited: Seminar at Purple Mountain Observatory, Nanjing, China
2018/01 Invited: 7th Forum for New Leaders in Space Science, CAS-NAS, Guangzhou, China
2018/01 Invited: Seminar at University of New South Wales, Sydney, Australia
2018/01 Invited: NSF Astronomy and Astrophysics Postdoctoral Fellows Symposium, Washington D.C.
2018/01 Invited: Modeling the Extragalactic Sky, UC Berkeley, CA
2017/09 Invited: Seminar at Observatório Nacional, Rio de Janeiro, Brasil
2017/09 Invited: Kavli CMB Lensing Workshop, Stanford University, Stanford, CA
2017/05 Invited: Princeton Thunch, Princeton, NJ
2017/03 Invited: Seminar at University of Chicago Kavli Institute for Cosmological Physics, Chicago, IL
2017/03 Invited: Black Hole Network: Supermassive Black Hole Binary Workshop at the Center for Computational Astrophysics, New York, NY
2017/02 Invited: Astrophysics Seminar at Rutgers University, New Brunswick, NJ
2016/10 Invited: Informal Seminar at IAS, Princeton, NJ
2016/10 Invited: HSC Science Discussion at Princeton University, Princeton, NJ
2016/10 Invited: Seminar at University of Pennsylvania, ‎Philadelphia, PA
2016/09 Invited: Seminar at Tsinghua University, Beijing, China
2016/09 Invited: Lunch talk at Peking University, Beijing, China
2016/09 Invited: Seminar at National Astronomical Observatories of China, Beijing, China
2016/07 Contributed: Celebrating a century of gravitational lensing, Leiden, Netherland
2016/05 Contributed: Cross-correlation Spectacular with LSST, Long Island, NY
2016/05 Invited: Columbia University Astronomy Colloquium, New York, NY
2016/03 Contributed: Rencontres de Moriond Cosmology, La Thuile, Italy
2016/01 Contributed: Essential Cosmology for the Next Generation, Cancun, Mexico
2016/01 Contributed: 227th AAS Dissertation Talk, Kissimmee, FL
2015/11 Invited: Astronomy Seminar at University of Hawaii, Honolulu, HI
2015/11 Contributed: JSPS 6th Multidisciplinary Science Forum at UC Davis, Sacramento, CA
2015/11 Invited: Joint Princeton/IAS Cosmology Lunch, Princeton, NJ
2015/07 Contributed: Theoretical and Observational Progress on the LSS, Garching, Germany
2015/05 Invited: Joint Stony Brook/Brookhaven National Lab Cosmology Seminar, Stony Brook, NY
2014/11 Invited: Seminar at Jiaotong University, Shanghai, China
2014/10 Invited: Seminar at National Astronomical Observatories of China, Beijing, China
2014/03 Contributed: Rencontres de Moriond Cosmology, La Thuile, Italy
2014/01 Contributed: Essential Cosmology for the Next Generation, Cabo San Lucas, Mexico

Observing Runs

(Once a while, I observe active galactic nuclei using optical telescopes, hoping to find supermassive black hole binaries!)
2018/08/14 Palomar 200" (Co-I)
2018/06/17 Palomar 200" (Co-I)
2016/03/03 - 03/07 MDM 2.4m Modspec + Echelle (Co-I)
2013/05/01 - 05/05 MDM 2.4m ModSpec + Templeton 1k (PI)
2011/06/26 - 07/04 MDM 2.4m CCDS
2010/12/28 - 2011/01/02 MDM 2.4m OSMOS
2010/06/07 - 06/08 MDM 2.4m CCDS (PI)
2010/03/12 - 03/16 MDM 2.4m CCDS
2009/12/14 - 12/20 MDM 2.4m CCDS & 1.3m Templeton
2009/08/19 - 08/25 MDM 2.4m CCDS & 1.3m Templeton
2009/05/25 - 05/28 MDM 2.4m CCDS with Retrocam
2009/03/17 - 03/18 MDM 2.4m CCDS (Part of an observing class)


DMSS: A Dark Matter Summer School at University at Albany

2018/07: One lecture on Large Scale Structure

Winter School at Observatório Nacional in Rio de Janeiro, Brasil

2017/09: Three lectures on Large Scale Structure Cross-Correlations

NJ Correctional Facilities

(Volunteer Math leader and instructor for the Prison Teaching Initiative)
2019 Spring (Garden State): Instructor MATH113 - Precalculus II
2018 Fall (Garden State): Instructor MATH112 - Precalculus I
2018 Spring (Garden State): Instructor MATH020 - Elementary Algebra
2017 Fall (Ft. Dix): Instructor PHY121 - Intro to Astronomy
2017 Spring (Garden State): Instructor MATH020 - Elementary Algebra
2016 Fall (Garden State): Instructor MATH015 - Pre-Algebra

Columbia University Undergraduate Courses

2014 Spring: TA C3602 Physical Cosmology (DETF slides)
2013 Fall: TA C1610 Theories of the Universe: From Babylon to the Big Bang
2013 Spring & Fall: Instructor for Observing labs
2012 Fall: TA C1903 Astronomy Lab I - Earth, Moon, and Planets
2012 Spring: TA BC1753 Life in the Universe

Barnard College Undergraduate Courses

2011 Fall: TA BC2001 Physics Lab I - Mechanics
2011 Spring: TA BC2002 Physics Lab II - Electromagnetism
2010 Fall: TA BC2001 Physics Lab I - Mechanics

Outreach Talks

2016/09 Amateur Astronomer's Association of Princeton (slides), Princeton, NJ
2014/02 Columbia Astronomy Public Outreach, New York, NY
2014/01 Public outreach: St. Marcellinius Secondary School, Mississauga, Ontario, Canada
2012/04 Gesamtkunstwerk 1020 (slides), New York, NY

Background image: Tom Abel & Ralf Kaehler (KIPAC, SLAC)