Category Archives: Journal Club

Is the Cosmological Coincidence a Problem? – Seminar by Navin Sivanandam

Last week, we enjoyed a seminar by Dr. Navin Sivanandam, a postdoc at AIMS, about his latest paper. Navin’s surprising answer to the above question is no, the cosmological coincidence is not something we should concern ourselves with. He uses … Continue reading

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Detection of Galaxy Cluster Motions with the Kinematic Sunyaev-Zel’dovich Effect – Kavilan Moodley

Our bonanza week of talks was finished up of Friday afternoon with Kavilan Moodley giving us a brief overview of the recent measurement of the kinematic Sunyaev-Zel’dovch effect using a combination of ACT and BOSS data, described in 1203.4219. Kavilan … Continue reading

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Casting Light on Antimatter: Fundamental Physics with Bottled Antihydrogen Atoms with Project ALPHA at CERN – Makoto Fujiwara

Our second talk this week was from Makoto Fujiwara, who was visiting from TRIUMF in Canada. Prof. Fujiwara talked to us about the work he and his collaborators have been doing to create and trap atoms of anti-hydrogen at CERN. … Continue reading

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Another propagation of ‘light’ in the heart

A few weeks ago (back on February 27th) the cosmology group seminar took an unusual turn from outer to Inner Space. Sehun Chun, who’s a researcher at AIMS, gave us a fascinating talk on his work on electrical propagation in … Continue reading

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Testing the equivalence principle with fundamental constants – seminar by Jean-Phillipe Uzan

This March seminar was about the strange concept of “varying constants” or more specifically, how these constants can help us test the equivalence principle. Jean-Phillipe started by explaining what a fundamental constant is and how, in order to allow them … Continue reading

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Exact non-linear homogeneities in ΛCDM cosmology – seminar by Niko Meures

Last Monday, at another of our popular seminars, Niko Meures (ICG, Portsmouth) gave us an intriguing talk on the topic of non-linear inhomogeneities in LCDM cosmology. His work involves looking at exact solutions to the Einstein Field Equations which allow … Continue reading

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The Problem of Averaging in Cosmology – seminar by Tim Clifton

This week our speaker, Tim Clifton of CERN and Oxford, took us through the difficult problem of averaging in cosmology. Tim presented the various current methods of averaging, pointing out some problems with them such as the dependence of averaged … Continue reading

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Monday group hack

Today we had Gopolang Mohlabeng (NASSP) give a talk on his research project under Marco Regis entitled “Dark Matter Detection using the MeerKAT Telescope”. In the journal club we discussed a variety of recent cosmological papers including arxiv:1010.6068, arxiv:1010.6128, arxiv:1010.4915, … Continue reading

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Papers mentioned this week

This is a list of the papers discussed this week. Feel free to add them to your Mendeley library, or you can subscribe directly to the public Journal Club collection in Mendeley. Horava-Lifshitz Cosmology: A Review, Shinji Mukohyama. If space … Continue reading

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