QUESTION 1 Which event would you expect to be most closely associated with regio

Question

QUESTION 1 Which event would you expect to be most closely associated with regions of active star formation? a. novae b. Type la supernovae O c. Type II supernovae d. Type Ib supernovae O e. planetary nebulae QUESTION 2 Fusion processes in stellar cores involving heavy elements a. generate more energy per atom than fusion of lighter elements O b. occur in shells further and further from the center of the core O c. generate energy for longer periods of time for heavier elements d. occur in larger and larger volumes of the core e. generate less total energy because less atoms are available QUESTION 3 The evolution of a "high mass star" is different from the evolution of smaller stars because these stars a. do not generate strong stellar winds b. can ignite carbon fusion c. rotate faster d. have stronger magnetic fields e. are never in binary systems 10 points 10 points 10 points

Explanation / Answer

1) a. Novae ,It is the starting stage of a star and the life of a star ends with super nova explosion

2)b. Occur in shells further and further from the center of the core. Also the fusion occurs in multiple shells at a time, hence the luminosity is higher for high mass stars and have a short life

3)b. can ignite carbon fusion. In low mass stars the fusio stops with the formation of helium and sometimes with the formation of carbon from fusion of 3 helium, but this is not the case in high mass stars.

5)Stellar wind

6)Protostar, Main Sequence, Red gaint , White dwarf, Black Dwarf

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