She studies the origin and evolution of the universe





From September 2021, I will be an associate professor at the Kavli Institute for the Physics and Mathematics of the Universe (IPMU) at the University of Tokyo in Japan. I welcome students and postdocs to work with me on cosmology related projects. Please reach out if you are interested!

RESEARCH


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.

Education

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

Appointments

2021 (expected)-: 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

Publications

Google Scholar, Arxiv, ADS

Students Mentored

Graduate:
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

Undergraduate:
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: ColumbiaLensing.org

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.

Talks

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)

TEACHING


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)