H2020Индивидуална стипендия2020–2022

SANDS · Stars, plANets, and Discs in multiple Systems

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2020-04-01 → 2022-03-31
Финансиране от ЕС: 184 708 €
Участници: 1
Схема: MSCA-IF

Линиите свързват координатора с партньорите.

Накратко на български

Динамиката на газовите дискове и формирането на планети в системи с две или повече звезди се анализират чрез компютърни модели и наблюдения. Това помага да се разбере как се раждат планетите в нашата галактика и вселената.

Този кратък обзор е генериран от изкуствен интелект

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

Резултати накратко

Stars, plANets, and Discs in multiple Systems

The main objective of the SANDS project was to study disc dynamics and planet formation in multiple stellar systems. Three main goals were foreseen in the context of multiple stellar systems: i) develop hydrodynamical tools to model these discs (WP1); ii) model recently imaged discs in such systems and create synthetic observations at different wavelengths (WP2); iii) study the secular behaviour of perturbed discs (WP3). The detailed study of stellar binaries, triples and flybys – both theoretically and observationally – shed light on the way protoplanetary discs evolve and the resulting impact on planet formation. As a matter of fact, the three WPs of the SANDS project led to 24 articles scientific articles in total, published in peer-reviewed journals (NB: 5 currently under review). Understanding the way discs form planets around young stars is key to reveal how planets (as the ones in our own Solar System) form in our Galaxy and in the Universe in general. Moreover, since most stars are born in systems composed of more than one star, it is of crucial importance to extend our current protoplanetary disc models to multiple stellar systems. This was at the very core of the SANDS projects. The results obtained constitute the foundation of the more ambitious ERC Starting Grant Stellar-MADE project that will start in October 2022 (PI: N. Cuello).

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

Цел на проекта

Protoplanetary discs behave as astronomical wizards that turn small sand into planets. Although no magic is involved, the process of planet formation remains utterly mysterious. On the one hand, it is known that the process of star formation leads to a very high fraction of binarity. On the other hand, thousands of exoplanets have been detected around single, binary and even multiple stellar systems. Therefore, we have to face it: the process of planet formation is very resilient! Understanding how planets form in multiple systems largely relies in our capacity to comprehend gas and dust dynamics in circumstellar, circumbinary, or even more exotic protoplanetary discs. This is the scientific goal of SANDS. During this fellowship, I plan to study disc dynamics using the state-of-the-art hydrodynamical code PHANTOM coupled to the highly optimised radiative transfer code MCFOST. This combination constitutes the most powerful numerical tool available to model disc dynamics in multiple systems. The work will be done within a large collaborative network of leading experts in both disc observations and theory. This will guarantee the high impact of the deliverables and the worldwide dissemination of the results obtained. The main scope of the SANDS project is to answer the following question: how are the initial conditions for planet formation affected by stellar multiplicity? By doing so, I expect to provide a comprehensive picture of disc dynamics in multiple systems. This will shed light on the fundamental process of planet formation around young stars and inform about the resulting planetary architectures.

Оригинален текст от CORDIS (на английски).

Участници

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS · ParisКоординаторФранция