Altas Energías

Proposal of local bias estimation for forward modeling Reconstruction in the BAO Peak analysis

by Dr. Sebastien Fromenteau (Instituto de Ciencias Físicas, UNAM)

Wednesday, 2 March 2022 from to (Mexico/General)
at ICN-UNAM ( Seminario virtual vía Zoom )
Para detalles de conexión contactar a
Cosmology infers the Universe's properties from astrophysical tracers
statistics. However, theory allows us to model the compressed statistics
(particularly the 2-pt correlation function and Power Spectrum) of the Cold
Dark Matter while we observe ‘normal matter’ tracers like the galaxies. Due
to the complexity of astrophysical processes, galaxies (and other objects)
are biased and incomplete tracers of the Cold Dark Matter field. I will
introduce the usual way this bias is treated before attempting to propose an
alternative using a more astrophysical approach, allowing us to take into
account a local information. Finally, I will give an example of a concrete
application with the forward modeling of galaxy reconstruction in the
Baryonic Acoustic Oscillations Peak measurement.

Liga Zoom:
Support Email: