Fabian Hervas Peters

Research Interests

I am a PhD student in the CosmoStat lab working in the field of observational cosmology under the supervision of Martin Kilbinger and Valeria Pettorino. 

In my work, I address the challenges facing cosmic shear in the coming decade as we enter the high-precision era in cosmology. 

I am particularly interested in constraining intrinsic alignment and precisely calibrating shear measurements. 

I explore the possible ways in which spectroscopic data can be combined with shape measurements to mitigate systematic effects and improve cosmological measurements.  

My main motivation is to investigate the mysteries that surround dark matter and dark energy, and to explore any path which allows to grasp their fundamental properties. 

I am a member of the UNIONS and Euclid collaborations. 

Publications:

Constraining Hot Dark Matter Sub-Species with Weak Lensing and the Cosmic Microwave Background Radiation,  FHP, Aurel Schneider, Jozef Bucko, Sambit K. Giri, Gabriele Parimbelli, 2023, arXiv:2309.03865

Probing the two-body decaying dark matter scenario with weak lensing and the cosmic microwave background, Jozef Bucko, Sambit K. Giri, FHP, Aurel Schneider, 2023, arXiv:2307.03222

Black-Hole-to-Halo Mass Relation From UNIONS Weak Lensing, Qinxun Li, Martin Kilbinger, ..., FHP, ..., 2024, arXiv:2402.10740

Euclid preparation. Sensitivity to neutrino parameters, M. Archidiacono, ..., FHP, ...,2024, arXiv:2405.06047

Euclid preparation. Sensitivity to non-standard particle dark matter model, J. Lesgourgues, ..., FHP, ...,2024, arXiv:2406.18274

Point-Spread Function errors for weak lensing - density cross-correlations. Application to UNIONS, Ziwen Zhang, Martin Kilbinger, FHP,...,2024, arXiv:2405.03434

 Selected Talks :

Action Dark Energy 2024, UNIONS/CFIS , October 2024 (invited)

SF2A Marseille: UNIONS-3500: 3500 square degrees of lensing in the northern sky, June 2024 (invited)

Euclid France/Euclid WLSWG: “Measuring Intrinsic Alignment in the UNIONS and BOSS/eBOSS surveys”,  January/February 2024

NORDITA Astrophysics seminar: “Using Cosmic Shear to Constrain a Hot Dark Matter Sub-Species”,  September 20 2023 (invited)

Euclid France: “Mixed Dark Matter constraints from KiDS-1000 and effects on the S8 tension”,  30 November 2023

 

Prior to my PhD I completed a master at the University of Zürich with a thesis in the group of Prof. Aurel Schneider titled “Probing the effects of a Mixed Dark Matter scenario using Weak Gravitational Lensing and Cosmic Microwave Background observations