What Are X-Ray Bursters

question 61

Multiple Choice

What are X-ray bursters?

• A)They are the central sources of energy for planetary nebulae.
• B)They are very massive stars that explode as supernovae, emitting bursts of X-rays and gammarays in the process.
• C)They are rapidly rotating black holes whose precession points their poles toward us onoccasion.
• D)They are violent energy sources known to lie at the heart of the Milky Way and similarmassive galaxies.
• E)They are neutron stars on which accreted matter builds up, then explodes in a violent nuclearexplosion.

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