How Did Observations with the Compton Gamma-Ray Observatory Show That

question 40

Multiple Choice

How did observations with the Compton Gamma-ray Observatory show that gamma-ray bursts were not coming from the Milky Way Galaxy?

• A) the bursts were all so "faint" (so little energy reached us) that they must be very far away
• B) the gamma-rays were all Doppler shifted, showing the sources were moving very fast
• C) the gamma-rays came from all over the sky, not just the plane of the Galaxy
• D) the gamma-rays were seen mostly from the direction of the planets in our solar system
• E) there were so few bursts observed with the Compton Observatory that it was not possible to figure out where they were coming from

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Definitions:

Contractility

The capability of muscle tissue to contract or shorten, generating force and movement.

Secretion

The process by which substances are produced and discharged from a cell, gland, or organ for a particular function in the organism or for excretion.

Intercalated Discs

Specialized connections between cardiomyocytes, containing gap junctions and desmosomes, facilitating synchronized heart contractions.

Cardiocyte

A muscle cell of the heart, specialized for continuous contractions that pump blood throughout the body.