A Red Giant Star Is Found to Be Orbiting an Unseen

question 81

Multiple Choice

A red giant star is found to be orbiting an unseen object with a short orbital period.By measuring the speed at which it orbits, astronomers deduce that the unseen object has a mass of 10 M_SUN.This object is probably a ________ because ________.

• A) black hole; the giant star is massive and could be in orbit only about something even more massive
• B) black hole; its mass is too large to be a neutron star or a white dwarf
• C) neutron star; any supernova that would have made a black hole would have destroyed the red giant
• D) M-dwarf star; only such stars would be faint enough to go unseen in this system
• E) black hole; most red giants orbit neutron stars, and neutron stars can turn into black holes

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Definitions:

Taking Care

The act of looking after someone or something to ensure their well-being.

Strategies

General plans or sets of actions aimed at achieving specific goals or solving particular problems.

Overextending Yourself

Taking on too many tasks or commitments simultaneously, leading to stress, burnout, or failure to effectively manage time and responsibilities.

Minimizing Distractions

Strategies or actions taken to reduce or eliminate disruptions that interfere with focus and productivity.