Speaker
Ms
Ayanda Mnikathi
Description
The kinematic Sunyaev-Zel’dovich (kSZ) effect comes from the Doppler shift of Cosmic Microwave Background (CMB) photons scattered by moving galaxy clusters. It offers a strong way to study the large-scale velocity field and test cosmological models. In this thesis, we aim to detect the kSZ signal by using the pairwise momentum estimator on data from the Atacama Cosmology Telescope Polarimeter (ACTPol). This method improves the weak kSZ signal by measuring the average momentum between pairs of galaxy clusters. This allows us to extract information about their peculiar velocities. We combine high-resolution CMB temperature maps from ACTPol with external DES Legacy Survey cluster catalogs for extra kSZ signals.
| Apply for student award at which level: | MSc |
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| Consent on use of personal information: Abstract Submission | Yes, I ACCEPT |