Tag: general 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

• The howling Universe

  

  Before I moved from IFT to IPhT, I filmed a video all about what standard sirens are and why they’re useful for cosmology. The video is now on Youtube, in English with Spanish subtitles. Take a look!

  Natalie Hogg

  February 24, 2022

  Academia, Postdoc, Science

  astronomy, astrophysics, cosmology, einstein, general relativity, gravitational waves, gravity, madrid, neutron stars, outreach, physics, spain, standard sirens, youtube

• Thesis off-cuts: the ancient history of general relativity

  

  I have recently been thinking a lot about what introductory and background material I want to include in my PhD thesis, as my self-imposed December deadline continues to hurtle towards me at an alarming speed. Concurrent with this thinking, I’ve also recently been enjoying a fantastic book called The Poincaré Conjecture by Donal O’Shea, all…

  Natalie Hogg

  June 27, 2020

  PhD, Science

  cosmology, general relativity, gravity, perelman, PhD, physics, poincare, thesis, thesis off-cuts, topology