Homepage of Ken Osato

I am JSPS Overseas Research Fellow at Institut d'Astrophysique de Paris.
My main research interests are in theoretical and observational astrophysics and cosmology.

Research Highlights

»Research Page

Delta_kappa
κTNG: Baryonic effects on WL statistics

Baryonic effect is the major systematic effect in weak lensing surveys. We have generated largest suite of mock weak lensing maps, which is composed of 10,000 realisations. The mock maps cover up to the source redshift 2.6. The sample data is available at Columbia Lensing.

HSC_Planck_xi
HSC WL and Planck tSZ cross-correlation

The cross-correlation of weak lensing and the thermal Sunyaev-Zel'dovich effect probes the large-scale structures and cluster astrophysics. We measured the cross-correlation with HSC and Planck data, and put constraints on cosmological parameters and mass bias parameter.


Contact

Institut d'Astrophysique de Paris
Sorbonne Université, CNRS
98bis boulevard Arago, 75014 Paris, France
E-mail: ken.osato@iap.fr
Phone: +33 1 44 32 80 00
Fax: +33 1 44 32 80 01