Hi, I’m Lukas Wenzl
Ph.D. student in Astronomy, working on Observational Cosmology
at Cornell University started 2019
Cornell University Graduate Student Fellowship for one year. Research Assistant Summer 2020 – Now
I am a PhD student in the Astronomy Department at Cornell University. Currently, I am working on observational cosmology under the supervision of Prof. Rachel Bean.
B.S in Physics
at Heidelberg University from 2015-2019
Bachelor Thesis and Research Assistant at Max Planck Institute for Astronomy from 2018-2019
Teaching Assistant for Theoretical Physics I during WS 2018/2019
I hold a B.S. in Physics from Heidelberg University. My bachelor’s thesis was on high redshift quasar searches under the supervision of Dr. Jan-Torge Schindler, Prof. Xiaohui Fan, and Dr. Fabian Walter. The project was a collaboration between the MPIA in Heidelberg and the University of Arizona.
Below you can find recent publications of mine.
For a complete, up-to-date list see ADS
Cosmology with the Roman Space Telescope — Synergies with CMB lensing
Presenting a forecast for the combined analysis of weak lensing and galaxy clustering data from the Roman Space Telescope and CMB lensing data from the Simons Observatory.
Random Forests as a viable method to select and discover high redshift quasars
Presenting a method to select quasars up to redshift of about 6 using a supervised machine learning algorithm. We report 20 new quasars between redshifts of 4.6 and 5.7.
3x2pt Forecasts for the Roman Space Telescope
credits for pictures above: Cosmos field: NASA, ESA, and R. Massey; Planck Polarization: ESA and the Planck Collaboration; Roman image: Roman collab; SO image: Galitzkia et al. 2018; Google Earth; Pan-STARRS image: R. White and the PS1 Science Consortium; Quasar illustration: ESO/M. Kornmesser; Roman Space Telescope render: NASA
I am committed to making any code that might be useful to others in the field publically available as soon as I can.
A simple python3 tool to correct the astrometry, i.e. the sky position metadata, of FITS images. I wrote the tool from scratch as part of my work as a Research Assistant at the MPIA. The tool has been used for various photometric follow-up observations of quasar candidates.
Notes on Statistical Mechanics (grad level, mostly a cheat sheet of essential concepts)