____ are star-like objects that contain less than 0.08 solar masses an will never raise their core temperatures high enough that the proton-proton chain can begin. Other minor fusion reactions do occur in these objects. They fall in a gap between the low-mass M dwarf stars and the massive planets in which nuclear fusion never occurs.
A) Brown dwarfs
B) Herbig-Haro objects
C) Bok globules
D) T-Tauri star
E) Main sequence stars

Question

Quizplus · Accepted Answer

Brown dwarfs are objects that fall in between the characteristics of low-mass M dwarf stars and massive planets. They are star-like objects that contain less than 0.08 solar masses and will never reach the core temperatures required for sustained nuclear fusion via the proton-proton chain. However, they still undergo minor fusion reactions, such as deuterium fusion. Brown dwarfs fit the description given, as they are star-like objects that do not undergo nuclear fusion and fall in the gap between low-mass stars and massive planets. Herbig-Haro objects are not star-like objects and are instead jets of gas ejected from young stars. Bok globules are dense regions of dust and gas where stars can form, but are not themselves stars. T-Tauri stars are young stars that have not yet reached the main sequence, and main sequence stars are stars that are able to undergo nuclear fusion.

____ Are Star-Like Objects That Contain Less Than 0