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AWESoMeStars SIGNED

Accretion, Winds, and Evolution of Spins and Magnetism of Stars

Total Cost €

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EC-Contrib. €

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Partnership

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Project "AWESoMeStars" data sheet

The following table provides information about the project.

Coordinator
THE UNIVERSITY OF EXETER 

Organization address
address: THE QUEEN'S DRIVE NORTHCOTE HOUSE
city: EXETER
postcode: EX4 4QJ
website: www.ex.ac.uk

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country United Kingdom [UK]
 Project website http://empslocal.ex.ac.uk/AWESoMeStars/
 Total cost 2˙206˙205 €
 EC max contribution 2˙206˙205 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2015-CoG
 Funding Scheme ERC-COG
 Starting year 2016
 Duration (year-month-day) from 2016-07-01   to  2021-06-30

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    THE UNIVERSITY OF EXETER UK (EXETER) coordinator 2˙206˙205.00

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 Project objective

This project focuses on Sun-like stars, which possess convective envelopes and universally exhibit magnetic activity (in the mass range 0.1 to 1.3 MSun). The rotation of these stars influences their internal structure, energy and chemical transport, and magnetic field generation, as well as their external magnetic activity and environmental interactions. Due to the huge range of timescales, spatial scales, and physics involved, understanding how each of these processes relate to each other and to the long-term evolution remains an enormous challenge in astrophysics. To face this challenge, the AWESoMeStars project will develop a comprehensive, physical picture of the evolution of stellar rotation, magnetic activity, mass loss, and accretion. In doing so, we will (1) Discover how stars lose the vast majority of their angular momentum, which happens in the accretion phase (2) Explain the observed rotation-activity relationship and saturation in terms of the evolution of magnetic properties & coronal physics (3) Characterize coronal heating and mass loss across the full range of mass & age (4) Explain the Skumanich (1972) relationship and distributions of spin rates observed in young clusters & old field stars (5) Develop physics-based gyrochronology as a tool for using rotation rates to constrain stellar ages. We will accomplish these goals using a fundamentally new and multi-faceted approach, which combines the power of multi-dimensional MHD simulations with long-timescale rotational-evolution models. Specifically, we will develop a next generation of MHD simulations of both star-disk interactions and stellar winds, to model stars over the full range of mass & age, and to characterize how magnetically active stars impact their environments. Simultaneously, we will create a new class of rotational-evolution models that include external torques derived from our simulations, compute the evolution of spin rates of entire star clusters, & compare with observations.

 Publications

year authors and title journal last update
List of publications.
2019 C. Georgy, C. Charbonnel, L. Amard, N. Bastian, S. Ekström, C. Lardo, A. Palacios, P. Eggenberger, I. Cabrera-Ziri, F. Gallet, N. Lagarde
Disappearance of the extended main sequence turn-off in intermediate age clusters as a consequence of magnetic braking
published pages: A66, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201834505
Astronomy & Astrophysics 622 2019-08-29
2019 Adam J. Finley, Siddhant Deshmukh, Sean P. Matt, Mathew Owens, Chi-Ju Wu
Solar Angular Momentum Loss Over the Past Several Millennia
published pages: , ISSN: 0004-637X, DOI:
The Astrophysical Journal 2019-08-29
2019 Louis Amard, A Palacios, C Charbonnel, F Gallet, C Georgy, N Lagarde, L Siess
First grids of low-mass stellar models and isochrones with self-consistent treatment of rotationFrom 0.2 to 1.5 Msun at 7 metallicities from PMS to TAMS
published pages: , ISSN: 0004-6361, DOI:
Astronomy and Astrophysics 2019-08-29
2017 Carolina Villarreal D\'Angelo, Moira Jardine, Victor See
Prominence formation and ejection in cool stars
published pages: L25-L29, ISSN: 1745-3933, DOI: 10.1093/mnrasl/slx206
Monthly Notices of the Royal Astronomical Society: Letters 475/1 2019-05-25
2017 C P Folsom, J Bouvier, P Petit, A Lèbre, L Amard, A Palacios, J Morin, J-F Donati, A A Vidotto
The evolution of surface magnetic fields in young solar-type stars II: the early main sequence (250–650 Myr)★
published pages: 4956-4987, ISSN: 0035-8711, DOI: 10.1093/mnras/stx3021
Monthly Notices of the Royal Astronomical Society 474/4 2019-05-25
2018 Q. André, S. Mathis, L. Amard
The effects of rotation on wave-induced transport in stars: from weakly to strongly stratified radiative zones
published pages: , ISSN: , DOI:
Conf Proc: SF2A-2018 2019-05-25
2018 S V Jeffers, M Mengel, C Moutou, S C Marsden, J R Barnes, M M Jardine, P Petit, J H M M Schmitt, V See, A A Vidotto, BCool collaboration
The relation between stellar magnetic field geometry and chromospheric activity cycles – II The rapid 120-day magnetic cycle of τ Bootis
published pages: 5266-5271, ISSN: 0035-8711, DOI: 10.1093/mnras/sty1717
Monthly Notices of the Royal Astronomical Society 479/4 2019-05-25
2018 S. Boro Saikia, T. Lueftinger, S. V. Jeffers, C. P. Folsom, V. See, P. Petit, S. C. Marsden, A. A. Vidotto, J. Morin, A. Reiners, M. Guedel
Direct evidence of a full dipole flip during the magnetic cycle of a sun-like star
published pages: L11, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201834347
Astronomy & Astrophysics 620 2019-05-25
2019 Quentin André, Stéphane Mathis, Louis Amard
The effects of rotation on wave-induced transport in stars: the case of an intermediate-mass star
published pages: , ISSN: , DOI:
Conf Proc: Physics of Oscillating Stars 2019-05-25
2018 Adam J. Finley, Sean P. Matt, Victor See
The Effect of Magnetic Variability on Stellar Angular Momentum Loss. I. The Solar Wind Torque during Sunspot Cycles 23 and 24
published pages: 125, ISSN: 1538-4357, DOI: 10.3847/1538-4357/aad7b6
The Astrophysical Journal 864/2 2019-05-25
2018 V. See, M. Jardine, A. A. Vidotto, J.-F. Donati, S. Boro Saikia, R. Fares, C. P. Folsom, S. V. Jeffers, S. C. Marsden, J. Morin, P. Petit, the BCool Collaboration
The open flux evolution of a solar-mass star on the main sequence
published pages: , ISSN: 0000-0000, DOI:
Monthly Notices of the Royal Astronomical Society 2019-05-25
2019 Carolina Villarreal D\'Angelo, Moira Jardine, Colin P Johnstone, Victor See
Slingshot prominence evolution for a solar-like star
published pages: , ISSN: 0035-8711, DOI: 10.1093/mnras/stz477
Monthly Notices of the Royal Astronomical Society 2019-05-25

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