If an 08 M_SUN white Dwarf Could Accrete Matter from a Binary

question 63

Multiple Choice

If an 0.8 M_SUN white dwarf could accrete matter from a binary companion at a rate of 10^-9 M_SUN/yr, how long would it take before it exploded as a Type Ia supernova?

• A) 600,000 years
• B) 20 million years
• C) 200 million years
• D) 600 million years
• E) 1 billion years

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Definitions:

Coinsurance Clause

A provision in insurance policies that requires both the insurer and the insured to share the costs of claims according to a fixed percentage.

Fire Insurance Policy

A contract that provides financial compensation to the insured in case of fire damage to property or goods.

Destroyed

When something is damaged beyond repair or no longer exists in its original form.

Collect

To gather or assemble multiple items or amounts together; also refers to the act of receiving payment.