What Is Microlensing

question 67

Multiple Choice

What is microlensing?

• A) The focusing of starlight by the gravitational fields of "small" objects such as brown dwarfs
• B) The beaming of radiation by accretion disks
• C) The use of small telescopes to enhance contrast by eliminating scattered light
• D) The focusing of starlight by planetary atmospheres

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Definitions:

Regression

A statistical method used to examine the relationship between one or more independent variables and a dependent variable.

Dependent Variable

The variable in an experimental setting that is expected to change in response to manipulations in the independent variable.

Independent Variable

A factor in a model or study that is deliberately altered to examine its impact on the variable that is being measured.

Coefficient Of Determination

A statistical measure that determines the proportion of variance in the dependent variable predictable from the independent variable(s).