Evidence of [CII] Shocked Emission in NGC 7479

By Dario Fadda and Joan Schmelz

Paper: [C II] and CO Emission along the Bar and Counter-arms of NGC 7479
Fadda, Dario, et al., 2021/03, ApJ, 909, 204.

SOFIA observations of the barred spiral galaxy, NGC 7479, were able to separate shock-enhanced ionized carbon [CII] emission from that associated with star formation, reminding us that it is important to consider multiple mechanisms when studying the [CII] emission in galaxies with active nuclei.

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Star Formation Across Cosmic Time

By Joan Schmelz

How do astronomers understand galaxies that are so far away that they may appear as a simple point source, even when observed with the most powerful telescopes? One proven technique is to study local analogues, galaxies that might have similar properties but are close enough to resolve their structures. A study like this was underway when researchers discovered something extraordinary – their observation was 10 times stronger than predicted.

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