A planetary nebula is visible due to __________. a. scattering from dust grains

Question

A planetary nebula is visible due to __________. a. scattering from dust grains ejected by a dying star b. blackbody continuum radiation from the interstellar medium c. line emission from the interstellar medium d. blackbody continuum radiation from a hot gas ejected by a dying star e. line emission from ionized hydrogen gas ejected by a dying star The mass loss due to main sequence solar wind in an ordinary star like the sun is less than ass loss due to stellar wind from a dying star True False _______ causes the outer layers of a red giant to blow off. Stellar wind Bipolar flow Radioactive decay Angular momentum conservation

Explanation / Answer

11) e.line emission from ionized hydrogen gas ejected by a dting star.

12) true

13) srellar wind

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