Institute of Astronomy

- Cameron Lemon

Research

Current tension between local distance measurements of the Hubble constant, and those from the CMB, might point towards new physics beyond our current best cosmological models. Gravitationally lensed quasars offer an independent measure of the Hubble constant through time delay cosmography, however these systems are incredibly rare. My PhD focusses on developing techniques to identify lensed quasars in new imaging surveys, including the Dark Energy Survey, Pan-STARRS, and Gaia.

Find our lens database here: https://www.ast.cam.ac.uk/ioa/research/lensedquasars/

Selected papers

Gravitationally Lensed Quasars in Gaia: III. 22 new lensed quasars from Gaia Data Release 2, Lemon, C.; Auger, M.; McMahon, R., MNRAS accepted

Gravitationally Lensed Quasars in Gaia: II. Discovery of 24 lensed quasars, Lemon, C.; Auger, M.; McMahon, R.; Ostrovski, F., 2018, MNRAS, 479, 5060

Gravitationally Lensed Quasars in Gaia: I. Resolving Small-Separation Lenses, Lemon, C.; Auger, M.; McMahon, R.; Koposov, S., 2017, MNRAS, 472, 5023

Career

2015-Present:

PhD, Institute of Astronomy, University of Cambridge

---Supervisors: Professor Richard McMahon, Dr Matt Auger

 

2014-2015:

Master's degree in Physics, University of Cambridge

 

2011-2014:

Bachelor's degree in Physical Natural Sciences, University of Cambridge

Awards and Prizes

Part III Cavendish Laboratory Prize (2015)

Corpus Christi Foundation Scholarship (2014)

Corpus Christi Foundation Scholarship (2013)

Corpus Christi Carter Scholarship (2012)

Page last updated: 11 December 2018 at 18:49