Consider three main sequence stars: a Low, Medium and High-mass.?

Question

List the evolutionary steps that lead to their respective deaths, for each? Fill in the steps with only the following words/processes: Nova, Helium being fused, Helium core, Bkack hole, Carbon being fused, Carbon core, White dwarf, red giant, iron core, planetary nebula, red dwarf, pulsar, neutron star, and supernova. You would use all of the words at least once and you will use some of the words more than once, but not for the same star.


I know this is retarted, I tried to do it myself and couldn't! I really did try, so I would greatly apprechiate it if someone could help, it is very important to me. Thanks

Answer 1

Hi. It is not retarded, just meant to test the depth of your understanding. Low mass stars are relatively cool and are usually red dwarfs and can develop a helium core. They do not have enough mass to fuse helium or form any explosive state. Medium mass stars are hotter and can eventually develop a carbon cycle. http://hyperphysics.phy-astr.gsu.edu/hbase/astro/carbcyc.html . At the end of their lives they can blow off gas and form a planetary nebula. During their lives they can also form an iron core. Depending on their mass they may turn into a red giant. Some become a nova and leave behind a white dwarf or a pulsar or a neutron star. High mass stars burn very quickly to offset the compression of gravity. They will quickly use all the fuels available and wind up with an iron core from which no further energy can be formed by fusion. The star collapses internally and forms a supernova. This can result in a pulsar. neutron star, or black hole. Hope this helps.