A Herbig-Haro object is:
A) the gas cloud produced by a supernova explosion.
B) a dark nebula that obscures distant stars from our view.
C) a young protostar emerging from its nebula.
D) glowing interstellar gas, heated by a high-velocity jet of matter from an evolving star.
Correct Answer:
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Q59: Some protostars, when they evolve onto the
Q60: Some protostars, when they evolve onto the
Q61: Those interior regions of a protostar that
Q62: T Tauri stars are at what stage
Q63: A T Tauri star is:
A)an intermediate mass
Q65: Herbig-Haro objects are:
A)dense dust clouds surrounding and
Q66: Herbig-Haro objects, bright, variable regions within nebulae,
Q67: Typical jets of bipolar outflow last for:
A)10
Q68: What is a proplyd?
A)a protoplanetary disk around
Q69: The Hubble Space Telescope has photographed disks
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