Astronomy and Astrophysics – Astrophysics
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21810406c&link_type=abstract
American Astronomical Society, AAS Meeting #218, #104.06; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astrophysics
Scientific paper
The science frontier for stars and stellar evolution is as close as the Sun and as distant as exploding stars at redshift 8.3. The field includes the Sun as a star, stellar astrophysics, the structure and evolution of single and multiple stars, compact objects, supernovae, gamma-ray bursts, solar neutrinos, and extreme physics on stellar scales. The following 4 questions appear promising for advances: (1) How do rotation and magnetic fields affect stars? (2) What are the progenitors of Type Ia supernovae and how do they explode? (3) How do massive stars end their lives? (4) What controls the mass, radii, and spins of compact stellar remnants?
Stellar astronomy will benefit from a wide range of multiwavelength observations, but observations in the time domain are especially well-suited to stellar problems. With regard to theory, computer resources are developing to the point where 3-dimensional simulations with realistic physics are becoming feasible and should play a crucial role in solving a number of outstanding problems.
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