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Match the Four Components of the Interstellar Medium (ISM) with Theirrespective

Question 21

Matching

Match the four components of the interstellar medium (ISM) with theirrespective description. You may use the choices more than once.

Premises:

Responses:

The hot space of ISMs with temperatures of a few thousand K and a density of only 0.1 atom per cubic centimeter found between the cool H I clouds

Coronal gas

A chaotic shape that is usually twisted, flattened, and tangled

Intercloud medium

Highly ionized state

Molecular clouds

The part of the ISM that can only be detected with X-ray telescopes have has temperatures of 10 ⁶ K or higher

H I cloud

The coolest temperature

ISM clouds of cool gas of only about 100 K and dust with densities ranging up to 100 atoms per cubic centimeter and observed only at infrared and radio wavelengths

Clouds of gas and dust with densities ranging from 100s-1000s particles per cubic centimeter, found deep inside the ISM, where it is protected from UV photons

Premises:

The hot space of ISMs with temperatures of a few thousand K and a density of only 0.1 atom per cubic centimeter found between the cool H I clouds

A chaotic shape that is usually twisted, flattened, and tangled

Highly ionized state

The part of the ISM that can only be detected with X-ray telescopes have has temperatures of 10 ⁶ K or higher

The coolest temperature

ISM clouds of cool gas of only about 100 K and dust with densities ranging up to 100 atoms per cubic centimeter and observed only at infrared and radio wavelengths

Clouds of gas and dust with densities ranging from 100s-1000s particles per cubic centimeter, found deep inside the ISM, where it is protected from UV photons

Responses:

Coronal gas

Intercloud medium

Molecular clouds

H I cloud

Correct Answer:

Premises:

Responses:

The hot space of ISMs with temperatures of a few thousand K and a density of only 0.1 atom per cubic centimeter found between the cool H I clouds

A chaotic shape that is usually twisted, flattened, and tangled

Highly ionized state

The part of the ISM that can only be detected with X-ray telescopes have has temperatures of 10 ⁶ K or higher

The coolest temperature

ISM clouds of cool gas of only about 100 K and dust with densities ranging up to 100 atoms per cubic centimeter and observed only at infrared and radio wavelengths

Clouds of gas and dust with densities ranging from 100s-1000s particles per cubic centimeter, found deep inside the ISM, where it is protected from UV photons