528

Check yourself Answers

1The nuclei have to overcome the Coulomb repulsion of their positive electric charges. High temperatures imply high nuclei speeds so they can crash into each other.

2No, being close to each other on the HR diagram says nothing about the actual distances between stars.

3By Wienâ€™s law, the bluish star is hotter since blue has a shorter wavelength than red.

41.6 solar masses in order to satisfy the Chandrasekhar limit.

5The surface area increases massively.