[OKC-CosmologyGravity] Reminder: C&G meeting - Oct 24 @ 13:15 in A5:1041 - talk by Steffen Hagstotz

[Raghunath Ghara]

Dear all,

This is a gentle reminder for our C&G group meeting later today at 13:15 in A5:1041.

See you soon!
Jens and Raghu



________________________________
From: Okc-wp1-at-fysik.su.se <okc-wp1-at-fysik.su.se-bounces at lists.su.se> on behalf of Raghunath Ghara <raghunath.ghara at astro.su.se>
Sent: Tuesday, October 23, 2018 1:41 PM
To: okc-wp1-at-fysik.su.se at lists.su.se
Subject: [OKC-CosmologyGravity] C&G meeting - Oct 24 @ 13:15 in A5:1041 - talk by Steffen Hagstotz


Dear All,


We will meet again for our next C&G seminar on 24th October, tomorrow at 13:15 in room number A5:1041.

Steffen Hagstotz from the Department of Physics, SU will give a seminar on the following topic:


Title: Hunting Modified Gravity and Neutrinos with Clusters of Galaxies


Abstract:

Considerable effort in cosmology is focused on understanding the statistical nature of the cosmological density field that underlies the observable large-scale structure. Clusters of galaxies trace the highest, non-Gaussian peaks of the matter density, and their abundance is a sensitive probe of both underlying cosmological parameters as well as of the physics governing structure formation. In my talk I will explain how cluster abundance can be used to search for modifications of gravity via the impact on spherical collapse and why neutrinos are a crucial component in these searches. In addition, astrophysical signatures within the cluster can be a key signal themselves and I will demonstrate how to incorporate them consistently in searches to constrain deviations from general relativity.



Date:        October 24, Wednesday

Time:        13:15

Place:       A5:1041


Cheers,

Jens & Raghu


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