MAC IN2P3 master project in-person meeting

30 mai 2024, 09:00 → 31 mai 2024, 17:00 Europe/Paris

A201 (IJCLab, Bât. 100A)

First in-person meeting of the MAC (Modélisation des astres compacts / Compact Stars Modeling) project, a master project (MP) of IN2P3.

This theoretical collaboration builds on the MP MAC (2017–2019) and NewMAC (2020–2022). The goal is to improve theoretical models derived from nuclear physics, allowing for a more precise understanding of compact stars and multi-messenger signals detected on Earth. The objects of study are neutron stars, hybrid stars, and quarks, as well as high-energy phenomena such as massive star core collapse and compact star coalescence. The emphasis is on how improved and microphysics-informed modelling of nuclear matter properties can be used to connect experimental nuclear and hadron physics with multi-messenger observations of neutron stars.

There are no registration fees for this meeting. Participants should book themselves a hotel if necessary. Two hotels are in walking distance: Hôtel d'Orsay and Residhome Bures la Guyonnerie.

A dinner on May 30th will be offered to those who registered for it. Lunches are not included

jeu. 30 mai

10:30 → 11:00 Accueil

11:00 → 12:30 Morning session

11:00 Superfluid fraction in the inner crust of neutron stars

Orateur: Giorgio Almirante (IJCLab, Orsay)

Mac-Almirante.pdf

11:30 Marco Antonelli

Antonelli_mac-meeting-orly_2024.pdf

12:00 Mohamad Chamseddine

12:30 → 14:00 Lunch break

14:00 → 15:00 Observation of gravitational waves from the coalescence of a 2.5-4.5 solar mass compact object and a Neutron Star

After a general introduction to gravitational waves astronomy, the seminar will discuss the recent results of the LIGO-Virgo-KAGRA fourth observing run, with focus on the observation, on May 29 2023, of the gravitational wave signal GW230529_181500. This signal is generated from the coalescence of a neutron star with a compact object with mass between the most massive neutron stars and the least massive black holes observed in the Galaxy. From gravitational waves data alone, we are not able to determine if the compact object is a neutron star or a black hole. To conclude, the seminar will report on the present LIGO-Virgo-KAGRA observing capabilities and the status of the ongoing observation run.

Orateur: Viola Sordini (IP2I Lyon)

Seminar_IJCLab_230529_VSordini.pdf

15:00 → 15:30 Coffee break

15:30 → 17:30 Afternoon session

15:30 Assuring Quality Software for Reproducible Research

Orateur: Philip Davis (Laboratoire de Physique Corpusculaire - Caen)

MAC-Davis.pdf

16:00 Mingya Duan

16:30 Neutron-star crust modelling and unified equations of state (ongoing projects)

Orateur: Anthea FANTINA ({CNRS}UPR3266)

Fantina_2024_05_30_MAC-meeting_web.pdf

17:00 Calibrating the in-medium modifications the clusters energy

Orateur: Francesca Gulminelli (LPC/Ensicaen)

Gulminelli_MAC_meeting.pdf

19:00 → 22:00 Dinner

ven. 31 mai

09:30 → 11:00 Morning session

09:30 Constraining the EoS and compact stars structure with multi-messenger data

Orateur: Elias KHAN (IJCLab, Orsay)

presentEK.pdf

10:00 Nuclear equation of state for the study of neutron stars

Orateur: Pietro Klausner (Université de Normandie - Caen / LPC / Università degli studi di Milano)

orsay24_pietro_klausner.pdf

10:30 Beyond meta-modeling

Orateur: Dr Jerome MARGUERON (IRL NPA, USA)

2024-05-MAC.pdf

11:00 → 11:30 Break

11:30 → 12:30 Morning session

11:30 Gabriele Montefusco

12:00 Fermi gases and dilute neutron matter with low-momentum interactions

Orateur: Michael URBAN (IJCLab, Orsay)

talk.pdf

12:30 → 14:00 Lunch break

14:00 → 15:00 Afternoon session

14:00 Round table

round-table.pdf