Tag: cosmology
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An update from lockdown
At first I refrained from writing about “the situation we currently find ourselves in”, as it has come to be so coyly referred to. I am lucky in that, while I was driven to leave Madrid and return to the UK, the pandemic has not affected my life in any great measure. Only one person…
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Paper day! Madrid week seven
Today my first paper as first author came out on the arXiv! You can check it out here: https://arxiv.org/abs/2002.10449. In this work, we reconstruct a coupling function between dark matter and vacuum energy. Such models are generally motivated as solution to problems such as the Hubble tension, so we were keen to update our previous…
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Standard sirens, Cobaya and Beethoven’s 9th: Madrid week two
As of tomorrow, I’ll have been in Madrid for two weeks! Time really does fly. The weather is still freezing and there’s fresh snow on the hills behind campus (as you can hopefully see in the header image, which I took on my commute this morning). This week I made a proper start on the…
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COSMO19 in Aachen
This week I travelled to Aachen on the western border of Germany for the COSMO19 conference hosted by TTK, the theoretical physics department of RWTH. The conference, which occurs yearly in different locations around the world, has a very broad scope ranging from particle astrophysics to theoretical cosmology. Conferences are an important and fun part…
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Constraints on the interacting vacuum — geodesic CDM scenario
At the very end of February, I published my first paper. In this post, I want to provide a brief, non-technical overview of what we* were doing in this work and the results we found. The manuscript is currently under review at MNRAS but you can view the preprint here: http://www.arxiv.org/abs/1902.10694. The aim of this…
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Applying for a PhD in physics
Almost exactly one year ago, I sent my final two applications off for PhD places in cosmology. One year on, as my department prepares to interview the candidates for October 2018 entry, I wanted to reflect on the application process. In total, I sent off nine applications and had three interviews. I was fortunate in…
Natalie B. Hogg 