HEИндивидуална стипендия2025–2027

CosmicBells · Cosmic Bells: Unveiling the composition of neutron stars with tidal oscillations

„Хоризонт Европа“ — Действия „Мария Склодовска-Кюри“

Период: 2025-04-01 → 2027-03-31
Финансиране от ЕС: 263 393 €
Участници: 1
Схема: HORIZON-TMA-MSCA-PF-EF

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Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Cosmic Bells: Unveiling the composition of neutron stars with tidal oscillations

Neutron stars (NSs) are among the densest objects in our Universe, yet what constitutes their interior remains unanswered. Recent studies suggest the existence of quark matter inside the heaviest NSs, while there is growing speculation about the presence of dark matter inside them. In addition to state-of-the-art electromagnetic experiments like NICER, we are now, for the first time, able to observe the evolution of binary NSs using gravitational waves (GWs) as well. With the advancement of GW observatories like LIGO, and the upcoming third-generation detectors on the horizon, there is now a unique opportunity to explore NS composition through their dynamical imprint on GW signals from compact object (CO) binary mergers. Yet, most theoretical efforts are still focused on static properties of NSs, which are unable to provide detailed information on their composition. The CosmicBells project seeks to address this gap by answering the critical question: what can we learn about exotic matter inside NSs by observing the impact of tidal oscillations on the GW signals of CO binaries? The objectives of the project are twofold. Firstly, developing numerical and analytic models for the impact of g-mode tides on compact binary evolution, focusing on the effect of orbital eccentricities and CO spins, both characteristic for dynamically formed binaries. Secondly, quantifying the effect of quark matter on the properties of NS g-mode oscillations using state-of-the-art effective field theoretical methods based on QCD phenomenology. Additionally, the project also aims to characterize the impact of dark matter (DM) captured by NSs on g-mode properties, and thus on compact binary evolution.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Neutron stars (NSs) are among the densest objects in our Universe, yet what constitutes their interior remains unanswered. Recent studies suggest the existence of quark matter inside the heaviest NSs, while there is growing speculation about the presence of dark matter inside them. In addition to state-of-the-art electromagnetic experiments like NICER, we are now, for the first time, able to observe the evolution of binary NSs using gravitational waves (GWs) as well. With the advancement of GW observatories like LIGO, and the upcoming third-generation detectors on the horizon, there is now a unique opportunity to explore NS composition through their dynamical imprint on GW signals from compact object (CO) binary mergers. Yet, most theoretical efforts are still focused on static properties of NSs, which are unable to provide detailed information on their composition. The CosmicBells project seeks to address this gap by answering the critical question: what can we learn about exotic matter inside NSs by observing the impact of tidal oscillations on the GW signals of CO binaries? As a Marie Curie Fellow I will achieve this goal by providing theoretical predictions on the properties of gravitational-mode (g-mode) oscillations in exotic matter admixed NSs using state-of-the-art field theoretical methods. I will also develop a few-body model to simulate the evolution of dynamically formed CO systems, focusing on the effect of g-mode tides. Working alongside Prof. Johan Samsing at the Niels Bohr Institute, I will be provided with the ideal research environment to carry out this project. The proposed research will present a novel method to study the impact of g-mode tides in CO systems, which might serve as beacons to pinpoint the existence of exotic matter in NSs.

Оригинален текст от CORDIS (на английски).

Участници

KOBENHAVNS UNIVERSITET · KOBENHAVNКоординаторДания