The Search for Black Holes Involves

question 7

Multiple Choice

The search for black holes involves

• A) searching for single stars that emit large amounts of x-rays.
• B) finding x-ray binaries where the compact companion has a mass in excess of 3.
• C) searching for large spherical regions from which no light is detected.
• D) looking for pulsars with periods less than one millisecond.

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