Letters of Intent received in 2021
LoI 2023-2145
Stellar magnetic fields from protostars to supernovae
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Date:
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2 July 2023 to 8 July 2023 |
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Category:
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Non-GA Symposium
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Location:
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Montreal, Canada
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Contact:
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Gregg Wade (wade.gregg@queensu.ca) |
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Coordinating division:
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Division G Stars and Stellar Physics |
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Other divisions:
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Co-Chairs of SOC:
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Gregg Wade (RMC) |
| Stefano Bagnulo (Armagh Obs) |
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Chair of LOC:
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None (None) |
Topics
Stellar dynamos and fossil fields across the HR diagram
Impact of magnetic fields on stellar structure and evolution: observation and theory
Transformation of magnetic fields throughout stellar evolution
Stellar magnetism as a 4D phenomenon
Magnetized accretion and outflows in young stellar objects
Magnetic braking of PMS stars
Solar and stellar activity in photospheres, chromospheres and coronae, and stellar cycles
Magnetism in very low-mass stars and brown dwarfs
Star-planet interaction
Magnetic field origin and stability in radiative zones
Magnetically-confined winds of hot, massive stars
Magnetospheres across the HR diagram
Dynamos, fossil fields and mass-loss in giant and supergiant stars
Final phases of stellar evolution : influence of magnetic history on final phases of evolution including supernovae, magnetism in compact objects
Rationale
Magnetic fields are a natural consequence of the dynamic plasmas that comprise a star, and a basic physical ingredient in the recipe of stellar structure and evolution. Theory and observation have combined to unequivocally demonstrate the fundamental impacts – both direct and indirect – of magnetic fields on stellar lives: modification of convective and circulatory interior flows, redistribution of angular momentum and nucleosynthetic chemicals, channeling and modification of mass loss, and shedding of rotational angular momentum through magnetic braking. Ultimately, these effects lead to important modification of stellar evolutionary pathways and stellar feedback effects, including mechanical energy deposition in the ISM and supernova explosions, and hence the properties of stellar remnants and the structure and chemistry of the local Galactic environment.
Since the last major international conference examining the interconnections of stellar magnetic fields across the HR diagram and throughout stellar evolution (IAUS 302, Magnetic fields throughout stellar evolution, Biarritz, France, 2013) the field has evolved tremendously. The time is ripe for a major meeting to review the current state of the field, to discuss and debate key problems, and to identify the critical questions that will be addressed during the coming decade.