Cosmoparticle Initiative


CASPEN Visits 2019

Name & InstituteDestinationHost ContactVisit DatesAimsOutput
Carolina Cuesta-Lazaro (Durham ICC)Flatiron Institute, New York CCAShirley Ho9 - 11 Nov 2019To collaborate with researchers at the CCA to develop Machine Learning models applied to cosmology, exploring 2 possible applications: 1) Understanding the galaxy-halo connection, train machine learning models on hydrodynamical simulations to help reduce their computational cost and improve our understanding of the relation between galaxies and their hosts dark matter halos. 2) Explore different approaches to cosmological emulators to improve constraints on cosmological parameters, using as training set the recently published set of simulations that has been developed at the CCA.  
Suk Sien Tie (Ohio CCAPP)UCLAndreu Font-Ribera30 Sep - 6 Oct 2019I expect to learn enough about the Lya forest mocks and related simulation and measurement tools to be able to use them independently for estimating the expected three-point correlation function noise (3PCF) in DESI Lya forest data. The expected long term goal of this visit will be to produce a paper that will forecast DESI sensitivity in measuring the 3PCF of the Lya forest, building upon the published work of Tie et al. (2019) and using the noise estimates based on the DESI mocks. This future paper will include as co-authors the proposed UCL host, James Farr, and others who have contributed to the DESI London mocks. 
Axel Widmark (Stockholm)Ohio State CCAAnnika H. Peter12 - 16 August 2019An exploratory visit to investigate future collaborative projects that overlap with my research interests of dark matter particle phenomenology, dynamical mass measurements, and stellar population statistics; for example, a natural follow-up to my local mass measurements of the Milky Way disk
Arka Banerjee (Stanford KIPAC)Flatiron Institute, New York CCAFrancisco Villaescusa-Navarro17 - 28 June 2019I plan to finish a paper on using halo environments to constrain neutrino mass with Francisco Villaescusa-Navarro,  and to have a concrete framework in place to build the void-galaxy emulators with Elena Massara possibly using the Quijote cosmological simulations run at the CCA.  I hope to start projects about Large Scale Structure, massive neutrinos or signatures of Self-Interacting Dark Matter.

Christian Setzer (Stockholm)Flatiron Institute, New York CCAStehen Feeney5 - 19 May 2019To formulate a Bayesian framework for using optical observations of gravitational-wave electromagnetic
counterparts to modify the priors used in searching gravitational-wave data for compact object merger signals
PDF iconcsetzer_report_2019.pdf
Chris Pedersen (UCL)Stockholm OKCKeir Rogers5 - 17 May 2019To work on constructing a Gaussian process emulator for the 1D flux power of the Lyman-alpha foresPDF iconchris_pedersen-report_2019.pdf
Joshua Borrow (Durham ICC)Flatiron Institute, New York CCADaniel Angles-Alcazar

7 - 20 April 2019

To look at the origin/physics behind inter-lagrangian transfer in the 100 mpc SIMBA box

Luisa Lucie-Smith (UCL)Stanford KIPACRisa Wechsler11 February - 1 March 2019

A machine learning framework to shed light on the physical origin of halo assembly bias

PDF iconllucie-smith-_report_2019.pdf
Andrew Robertson (Durham ICC)Ohio State CCAPPAnnika Peter10 - 15 February 2019To complete the Novel Probes of SIDM review paper and to explore future collaborations for testing a number of proposed probes of the nature of dark matter on cluster scalesPDF iconandrew_robertson-report_2019.pdf
Isabella Paola Carucci  (UCL)Flatiron Institute, New York CCAFrancisco Villaescusa-Navarro6 - 22 February 2019To  complete the project on the ‘linear point’ feature measured by intensity maps of the 21cm radiation, and to start a project on general cosmological information by looking at the large simulation suite at CCA


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