The gravitation group is inviting you to the following seminar:

Development in multi-messenger astronomy over the last few years has

opened new facets to the hadronic matter at densities beyond our terrestrial

reach. It provides new constraints to the theories of nuclear physics, where an

absolute energy density functional is desired from ab-initio mechanisms. Under

the realm of general relativity, there is a one-to-one correspondence between

static observables of a neutron star and the equation of state

(beta-equilibrated). However, high density behaviour of the equation of state is

almost unconstrained in the present scenario. A possible way to explore the

reach of the current theories with nucleonic degrees of freedom was proposed

recently through a meta-modelling, where nuclear matter properties are the

parameters of the density functional. This can be benchmarked as the baseline

to introduce other degrees of freedom (hyperons, deconfined phase) to

**A flexible model for neutron star equation of state from nuclear physics**Development in multi-messenger astronomy over the last few years has

opened new facets to the hadronic matter at densities beyond our terrestrial

reach. It provides new constraints to the theories of nuclear physics, where an

absolute energy density functional is desired from ab-initio mechanisms. Under

the realm of general relativity, there is a one-to-one correspondence between

static observables of a neutron star and the equation of state

(beta-equilibrated). However, high density behaviour of the equation of state is

almost unconstrained in the present scenario. A possible way to explore the

reach of the current theories with nucleonic degrees of freedom was proposed

recently through a meta-modelling, where nuclear matter properties are the

parameters of the density functional. This can be benchmarked as the baseline

to introduce other degrees of freedom (hyperons, deconfined phase) to

investigate the neutron star matter.

## Dates:

Monday, 15 March, 2021 - 11:00 to 12:00

## Localisation / Location:

APC

## Salle / Local:

https://u-paris.zoom.us/j/87990108926?pwd=R2w5SDJOcGduaTNYUFgyY1dsSHhWUT09

- Séminaire

## Nom/Prénom // Last name/First name:

Chiranjib Mondal

## Affiliation:

LPC Caen

## Equipe(s) organisatrice(s) / Organizing team(s):

- Gravitation

## Pays / Country:

France