'Pop i' diaporamas de présentation

Main Sequence Lifetimes

Main Sequence Lifetimes. Time on Main Sequence How much fuel it has (Core H) How fast it consumes the fuel (Luminosity). Main Sequence Lifetimes. Main Sequence Lifetimes. Our Sun M = 1 M ( ?) and L = 1 L ( ?) t MS-lifetime = 10 10 years = 10 billion years

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Galactic Stellar Population Structure and kinematics

Galactic Stellar Population Structure and kinematics. Alessandro Spagna Osservatorio Astronomico di Torino 26 Febbraio 2002. Galactic Structure. Flat disk : 10 11 stars (Pop.I) ISM (gas, dust) 5% of the Galaxy mass, 90% of the visible light Active star formation since 10 Gyr.

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El universo :

422 views • 22 slides

Felix Awantang Matar CAMARA Vincent Joret

307 views • 20 slides