Current group members (ca. April 2023)

I am fortunate to work with a group of talented and enthusiastic cosmologists at JPL and at Caltech. We meet at Cahill every Tuesday at 2:00 pm in the Cahill 312. Some papers of interest to be discussed are collected here.
  • Yun-Ting Cheng: Yun-Ting, a JPL post-doc, joined us after completing her PhD at Caltech in the Observational Cosmology group under the supervision of Jamie Bock. She works on intensity mapping, both developing the scientific cases for on-going and future experiments and the associated required analysis techniques. She is also currently developing novel and optimal means to interpret large-scale structure surveys to build large-scale galactic dust extinction maps. [Web]
  • Henry Gebhardt: Henry, now a Caltech post-doc, joined us from Penn State University where he studied under the supervision of Prof. Donghui Jeong. Throughout his PhD, he studied multiple aspects of black holes and line emission surveys, with a particular focus on the HETDEX survey in which he has played an important role in the analysis planning. Henry is now working on getting us ready for the soon coming SPHEREx all-sky survey. [Web]
  • Chen Heinrich: Chen, now a Caltech research scientist, joined us from the University of Chicago where she studied under the supervision of Prof. Wayne Hu in 2017. During her PhD, she did important quantifying the effect of lensing when measuring compensated isocurvature perturbations,  as well as novel and influential studies of reionization and inflation after Planck. Chen now focuses on preparing for both the SPHEREX cosmology investigation and the Nancy Grace Roman Space Telescope HLS survey. [Web]
  • Wang Yijun (Ali): Ali is a graduate student at Caltech and we are exploring possible signature of gravitational waves measurable by the coming Nancy Grace Roman Space Telescope NASA flagship. Ali is jointly supervised with Yanbei Chen and Tzu-Ching Chang.
  • Richard Feder-Staehle: Richard is a graduate student at Caltech, under the supervision of Jamie Bock, and we are jointly exploring the measurement of redshift problem with SPHEREx. [richardfeder.github.io]
  • Robin Wen: Robin is a graduate student at Caltech, under joint supervision of Prof. Jamie Bock and myself. He joined us from the University of Waterloo. He is studying the accurate modeling of galaxy clustering on the largest scales to be measured by future surveys such as SPHEREx or Euclid. [Web]
  • Joshua Benabou: Joshua, a graduate from Ecole Polytechnique was a SURF summer student in 2020 and is visiting us again for a long stay. He started graduate school at UC Berkeley in the fall 2021. He is working on wide-angle effects in galaxy surveys and higher-order statistics.

Former group members:

  • Postdocs:
    • Ashmeet Singh: Now a faculty at Whitman College.  [Web]
    • Kris Pardo: Now a faculty at USC.  [Web]
    • Daniel Lenz: Now a data scientist in Bonn, Germany.  [Web]
    • Jérôme Gleyzes: Now a data scientist in Bordeaux, France.
    • Elisabeth Krause: Now faculty at the University of Arizona. [Web]
    • Roland de Putter: Now a data scientist in New York.
    • Phil Bull: Now a Reader in Cosmology at the University of Manchester. [Web]
    • Hao-Yi (Heidi) Wu: Now a Professor at Boise State University. [Web]
    • Paolo Serra: Now a data scientist in New York.
    • Anthony Pullen: Now faculty in Physics at NYU.  [Web]
    • Alvise Raccanelli:  Now a Professor at the Universita deli Studi di Padova. [Web]
    • Duncan Hanson: Now at Google.

  • Graduate Students:
    • Abhilash Mishra: Abhilash was a graduate student of Chris Hirata. Now at the University of Chicago. Director of the Kevin Xu Global Initiative on Science, Technology, and Inequality. [Web]
    • Tejaswi Venumadhav: Teja was a graduate student of Chris Hirata. Now a faculty at UC Santa Barbara. [Web]
    • Dan Grin: Dan was a student of Marc Kamionkowski. Now a Professor of Physics & Astronomy at the Haverford College. [Web]​
    • Shi Yanlong: Yanlong was a graduate student at Caltech, under the supervision of Phil Hopkins, and we jointly explored new signatures of neutrino masses in the spatial distribution of galaxies. Yanlong is now at CITA, University of Toronto. 

  • Undergraduate Students:
    • Sujay Champati
    • Kailai Wang
    • Carlos Pareja
    • Rajib Chowdhury: Now senior at University Central Florida.
    • Joshua Benabou: Now a graduate student at UC Berkeley
    • Isabel Sands: Now a graduate student at Caltech
    • Zucheng Gao: Now a graduate student at the University of Cambridge (UK).
    • Brandon Khek: Now a senior at Rice University.
    • Leah Vazsonyi: Now a senior at Caltech.
    • George (Trey) Driskell: Now a graduate student in cosmology at USC.
    • Yash Kankanampatil: Yash, a graduate from the  Indian Institute of Technology, Dhanbad.
    • Roohi Dalal: Now a graduate student in astronomy at Princeton University.
    • Gabriela Satie Sato Polito: Now a graduate student in astronomy at John Hopkins University.
    • Daniel DeFillipis: Now a graduate student at Columbia University.
    • Christina Kreisch: Now a graduate student at Princeton University. [Web]
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