Category Archives: Group Meetings

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

Posted on April 4, 2012 by

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

Posted on March 23, 2012 by

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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Optimization of Multi-Object Spectroscopy in Astronomy – Brent Miszalski

Posted on March 22, 2012 by

Yesterday at AIMS we were fortunate enough to have two seminars to start off the week. The first was from Brent Miszalski who is a SALT Research Fellow at the SAAO. He came to tell us about an optimization problem … Continue reading →

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SN Ia Rate in Intermediate-Redshift Galaxy Clusters – Seminar by Eli Kasai

Posted on December 7, 2011 by

This week, Eli Kasai gave us a short talk about the work he is doing for his masters project with NASSP. He is using image subtraction to find type 1a supernovae to learn more about supernovae rates in galaxy clusters. … Continue reading →

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String Theory and Nonplanar AdS/CFT – Public Talk and Seminar by Robert de Mello Koch

Posted on December 7, 2011 by

On Tuesday the 15th, Robert de Mello Koch graced the AIMS/Science Out Loud scene with his public talk entitled “From Spacetime and Quantum Mechanics to String Theory”. In his brilliant overview of string theory, in which important props such as … Continue reading →

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Non-gaussianities in Multifield Inflation: The approach to adiabaticity and the Fate of fnl – Seminar by Navin Sivanandam

Posted on December 7, 2011 by

This week, we had the pleasure of receiving a seminar by Navin Sivanandam, the new post-doc at AIMS. Navin presented his recent work with Joel Meyers, found  in the papers  1011.4934 and 1104.5238. Navin first overviewed the basics of inflation. … Continue reading →

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Recent results from the Herschel-ATLAS – Seminar by Matt Jarvis

Posted on October 19, 2011 by

This week, Matt Jarvis (from the University of the Western Cape and the University of Hertfordshire) brought us up to speed on the latest results from Herschel, the infrared space telescope launched by ESA in 2009. Matt reminded us of … Continue reading →

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Falsifying Paradigms for Cosmic Acceleration – Seminar by Dragan Huterer

Posted on May 20, 2011 by

Dragan Huterer, from the University of Michigan, gave us a very entertaining talk that stimulated much discussion about how to falsify entire paradigms of dark energy rather than just specific models of dark energy. In their recent paper Mortonson, Hu … Continue reading →

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Attempts at Solving the Coincidence Problem – seminar by Marina Cortês

Posted on May 13, 2011 by

In this excellent seminar, Marina told us about her group’s attempt to solve the coincidence problem of dark energy by allowing for multiple phases of acceleration. The coincidence problem is that it seems we live in a special time where … Continue reading →

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

Posted on March 11, 2011 by

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

Posted on February 24, 2011 by

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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Real-Time Cosmology seminar by Claudia Quercellini

Posted on February 14, 2011 by

Our Monday seminar this week was a fascinating look at real-time cosmology, which is about observing the cosmos change on human timescales, typically around a decade.  Although the work is still theoretical at this point, awaiting bigger, better and more … Continue reading →

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