Author Question: Absorption lines in the spectra of supergiant stars are broader than the same spectral lines in ... (Read 157 times)

sammy · **on:** Jul 27, 2018

Absorption lines in the spectra of supergiant stars are broader than the same spectral lines in main-sequence stars of the same spectral type.

a. True
b. False
Indicate whether the statement is true or false

Question 2

What happens when a core's mass exceeds 3 solar masses and its density exceeds that which electron degeneracy pressure can support?

a. The core collapses into a black hole. b. The core collapses into a neutron star.
c. The core collapses into a white dwarf. d. The core collapses into a neutron star or a black hole.