Cullan Howlett
Papers
3
Total Citations
55
H-Index
3
About
Cullan Howlett is a leading cosmologist whose work focuses on extracting precise measurements of the large-scale structure of the universe from massive spectroscopic surveys. His key research areas include galaxy clustering, redshift-space distortions, and the mitigation of systematic observational effects in cosmological data. Howlett’s major contributions center on solving the critical problem of fiber assignment incompleteness in the Dark Energy Spectroscopic Instrument (DESI). He has developed and produced alternate realizations of DESI’s fiber assignment to correct for the angular constraints imposed by robotic positioners, enabling unbiased clustering measurements. His work is foundational to DESI’s Data Release 1 analysis, with his most-cited papers (accumulating over 55 citations) providing both the methodology and the production of corrected datasets. By characterizing how fiber assignment incompleteness affects two-point clustering statistics, Howlett has delivered essential mitigation techniques that ensure the fidelity of DESI’s cosmological constraints. His research is vital for advancing our understanding of dark energy and the growth of cosmic structure, making him a key figure in the next generation of spectroscopic surveys.
Research Focus
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Top Papers
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