Tag: gravitational lensing

• Cosmology’s first century

  

  A guided tour of the Universe from Einstein to JWST It was a great pleasure to be invited to the Charlbury Beer Festival in June 2023 to give a talk in the culture tent. The topic I chose to discuss was gravity, and more specifically how our best theory of gravity, Einstein’s theory of general…

  Natalie Hogg

  June 23, 2023

  Academia, Postdoc

  astronomy, astrophysics, cosmology, dark energy, dark matter, einstein, euclid, general relativity, gravitational lensing, gravitational waves, gravity, james webb space telescope, jwst, newton, outreach, physics, public talk, special relativity

• Measuring line-of-sight shear with Einstein rings

  

  Today I released a paper written in collaboration with Pierre Fleury, Julien Larena and Matteo Martinelli on how we can measure line-of-sight shear from Einstein rings. But what is line-of-sight shear, and why are we interested in measuring it in the first place? To answer these questions, let’s review the phenomenon of strong gravitational lensing.…

  Natalie Hogg

  October 14, 2022

  Academia, Postdoc, Science

  astronomy, astrophysics, coding, cosmology, einstein rings, foss, general relativity, github, gravitational lensing, hubble space telescope, lensing, open source, physics, programming, pull request, software, strong gravitational lensing, strong lensing