Elbereth conference 2022

Subject : The Diffuse Galactic Light : Euclid looking through the interstellar veil.

23 mars 2022, 14:40

10m

Amphithéâtre & Salle des séminaires (Observatoire de Meudon)

Oral presentation Astrophysics Talk

Orateur

Axel RYMAR (Université Paris-Saclay)

Description

This subject is about the astrophysics of the interstellar medium. In this presentation I will outline the Euclid mission and the relevance of the study of the Diffuse Galactic Light (DGL) in its context.
The following questions will be answered :
What is Euclic ? How does an interstellar medium study could have an impact on cosmological studies ? What is the Diffuse Galactic Light and its link with all of it ?
The project : 2 sided : analyzing and characterizing the DGL in order to get rid of it for the Euclid mission and learn more about interstellar dust properties.
Data : Deep field images from Megacam mounted on the Canada France Hawaii Telescope (CFHT).
Method : Confronting the DGL to thermal emission of dust and building a model considering the model THEMIS as a starting point. The numerical tools are : SOC, a radiative transfer code that computes the scattering of dust, and DustEM, a numerical that computes dust thermal emission, extinction and absorption of dust.

Day constaints

I'm not here on Thursday the 24th. So either the 23rd or the 25th. See you there.