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Probing the evolution of stellar systems

Probing the evolution of stellar systems. Andreas Zezas Harvard-Smithsonian Center for Astrophysics. The lives of stars : fighting against gravity. Defining parameter : Mass To avoid implosion stars must generate energy from fusion reactions

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388 views • 28 slides

Comparison with Theoretical CM diagram

Comparison with Theoretical CM diagram. Galactic Astronomy #6.1.3 Jae Gyu Byeon. Isochrone. The Morphology of G.C. CMD : All star formed single epoch Choose initial abundances for the chemical element For heavy element, initial helium abundance Evolve the population forward in time

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267 views • 14 slides

An unusually solar-like twin, and the virtue of differential spectroscopy in Galactic studies

An unusually solar-like twin, and the virtue of differential spectroscopy in Galactic studies. Bengt Gustafsson Dept of Astronomy and Astrophysics Uppsala University. Solar Twins. M67. VandenBerg et al. Weiss. M67-1194. Pasquini et al. (2008) Solar-twin candidates in M67. M67-1194.

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234 views • 13 slides

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