Category: Academia
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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.…
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Why I have a website (and why you should too)
Academics can often be rather squeamish about self-promotion. I myself am not a fan of writing endless cover letters and research statements where I have to act as the sole and assiduously devoted marketer and salesperson for the brand that is Natalie B. Hogg: CosmologistTM. But the squeamishness, and the attendant procrastination that can turn…
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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!
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From Madrid to the Cotswolds by train
I can’t pretend to enjoy flying. It’s noisy, stressful and horrendously bad for the environment. On my last journey to Madrid, I took the ferry from Portsmouth to Santander and the train on from there. The ferry crossing itself took about thirty hours spread over two nights (with an evening departure and an early morning…
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Implicit none
The first programming language I ever learned was Fortran. And before you ask, no, I’m not seventy years old. It just so happened that during my undergraduate degree, I took two courses on numerical methods for physics which were taught in Fortran, and for good reason: Fortran is still one of the best languages to…
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The road (back) to Madrid
On Friday last week I signed my contract and started my job as a postdoctoral researcher at the IFT in Madrid. It feels extremely good to type that. I have also been waiting a very long time to write this post. I was offered this job on the 12th of April 2020 — when the…
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My PhD viva
In this post, I’ll discuss how I prepared for my PhD viva exam in cosmology, what the viva itself was like and what happened next. I submitted my PhD thesis on the 4th of January 2021 (which also happened to be my birthday) and had my viva exam on the 3rd of February. This is…
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The end (and the beginning)
Last week I passed my viva and consequently I have finished my PhD! I have to make some very minor corrections to my thesis, but my three year and three month journey in PhD-land has come to an end. I thought I was going to be fairly melancholy after finishing, for a number of reasons.…
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Writing my PhD thesis
How do you write a PhD thesis? This question sounds like the start of the old joke: “How do you eat an elephant? One piece at a time”. A PhD thesis is a document which must explain, summarise and defend three or more years of research in your chosen field, often running to 40,000 words…
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Thesis off-cuts: the reproducibility crisis in cosmology
As we frequently hear1, we’re now in the precision era of cosmology. What this really means is that we’re in the era of measuring things really well, and we’re getting really good at measuring things because we keep building ever more enormous and powerful telescopes. I remember attending the STFC Introductory Summer School on Astronomy…
Natalie B. Hogg 