Donghui Jeong

Assistant Professor in Astronomy & Astrophysics

518 Davey Lab
University Park, PA 16802

Phone: +1 814-865-1117
Fax: +1 814-863-2842
Email: djeong@psu.edu

Personal webpage
Donghui Jeong

I am a theoretical astrophysicist and cosmologist who specializes in extracting cosmological information from the large-scale structure observations such as distribution of high redshift galaxies and anisotropies of cosmic microwave background radiation. From the large-scale observations, I am pursuing the answers to following questions:

I have been developing tools to overcome theoretical and observational challenges in obtaining correct cosmological information from the surveys: (i) the effect of surveying conditions (window function) and (ii) the effect of non-linearities, both of which alter the observed statistics from the simplest linear theory predictions, and (iii) the covariance matrix that quantifies the uncertainties in the observation. I have also been proposing new statistical observables (clustering fossils and cosmic rulers) that will open up the window to the exotica (new vector or tensor fields) which are unobservable otherwise.

Currently, I am a member of the Hobby Eberly Telescope Dark Energy Experiment (HETDEX), a spectroscopic survey aiming to measure the properties of dark energy at high redshift. For the HETDEX survey, I have developed the data analysis pipeline as well as the theoretical modeling for the statistical observables such as power spectrum and bispectrum. I will play a leading role in extracting cosmological information from the dataset when the survey starts in Fall 2014.