The Age of Stars in a Cluster Can Be Determined

question 69

Multiple Choice

The age of stars in a cluster can be determined by

• A)determining the main sequence turnoff point.
• B)finding spectroscopic binaries in the cluster.
• C)counting the number of stars in each spectral class.
• D)finding pulsating variable stars in the cluster.
• E)fitting the position of the main sequence to the Sun.

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Definitions:

False Alarms

Instances in signal detection when a non-target stimulus is incorrectly identified as a target, leading to erroneous responses.

Hits

A term that often refers to the popularity or success of something, such as a website visit, song downloads, or the number of times a piece of information is accessed.

Signal-Detection Experiment

A method to measure the ability to differentiate between information-bearing patterns and random patterns that distract from the information.

Miss

In a psychological context, it can refer to a failure to perceive, understand, or achieve a particular target or outcome.