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ISM Structure - Indian Institute of Astrophysics

ISM Structure - Indian Institute of Astrophysics

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Phases <strong>of</strong> the <strong>ISM</strong><br />

Coronal gas (HIM)<br />

Filling factor > 0.5.<br />

Density ~ 0.001 cm -3 .<br />

T > 10 5.5 K.<br />

Heating from supernova<br />

explosions.<br />

Collisionally ionized.<br />

NGC 4631<br />

http://imagine.gsfc.nasa.gov/docs/features/news/01aug01.html

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