Match the stage of the star-gas-star cycle with the process that is unique to th
ID: 232232 • Letter: M
Question
Match the stage of the star-gas-star cycle with the process that is unique to the stage.
ABCDEF Planetary nebulae events would fall into this category of the cycle.
ABCDEF This is detected as a thick layer int he galaxy's disk by its characteristic 21-cm radio emission.
ABCDEF Sometimes they merge and erupt into a blowout - a galactic eruption out of the disk. The material will eventually rain back down onto the disk.
ABCDEF Coldest, densest and thinnest collection of gas in the interstellar medium.
ABCDEF Ordinary main sequence stars are in this stage.
ABCDEF Although low mass red giants are still manufacturing heavier elements in and around their cores by nucleosynthesis, they are also returning material to the interstellar medium, so they are technically also in this category of the star-gas-star cycle as well.
ABCDEF Although hydrogen (H2) accounts for the bulk of the mass, it is often detected by emission from carbon monoxide.
ABCDEF Protostars are in this stage.
Match the stage of the star-gas-star cycle with the process that is unique to the stage.
Explanation / Answer
Planetary nebulae events would fall into this category of the cycle. - A
This is detected as a thick layer int he galaxy's disk by its characteristic 21-cm radio emission. - C
Sometimes they merge and erupt into a blowout - a galactic eruption out of the disk. The material will eventually rain back down onto the disk. - B
Sometimes they merge and erupt into a blowout - a galactic eruption out of the disk. The material will eventually rain back down onto the disk. - D
Ordinary main sequence stars are in this stage. - F
Although low mass red giants are still manufacturing heavier elements in and around their cores by nucleosynthesis, they are also returning material to the interstellar medium, so they are technically also in this category of the star-gas-star cycle as well. - A
Although hydrogen (H2) accounts for the bulk of the mass, it is often detected by emission from carbon monoxide. - C
Protostars are in this stage. - F