[FeII] as a shock tracer in NGC 253

[FeII] as a shock tracer in NGC 253

Supernovae play an integral role in the feedback of processed material back into the interstellar medium (ISM) of galaxies and are responsible for most of the chemical enrichment of the universe. The rate of supernovae can also reveal the star formation histories. In a sample of 11 nearby galaxies o...

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Veröffentlicht in:Proceedings of the International Astronomical Union 2012-08, Vol.8 (S292), p.295-298
Hauptverfasser: Rosenberg, Marissa J. F., van der Werf, Paul P., Israel, Frank P.
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Sprache:eng
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Astronomy
Astrophysics
Contributed Papers
Luminosity
Star & galaxy formation
Supernovae
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container_end_page 298
container_issue S292
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container_title Proceedings of the International Astronomical Union
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creator Rosenberg, Marissa J. F.
van der Werf, Paul P.
Israel, Frank P.
description Supernovae play an integral role in the feedback of processed material back into the interstellar medium (ISM) of galaxies and are responsible for most of the chemical enrichment of the universe. The rate of supernovae can also reveal the star formation histories. In a sample of 11 nearby galaxies observed with SINFONI, a strong linear correlation between [FeII]1.26 luminosity and Starburst 99-derived supernova rate is found on a pixel-pixel basis. In the very nearby archetypal starburst galaxy NGC 253, the excitation of molecular gas is a subject of debate. Using the correlation between [FeII] and supernova rate, we can determine if supernovae can account for the excitation of the bright observed near-infrared H2 emission.
doi_str_mv 10.1017/S1743921313001464
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subjects Astronomy
Astrophysics
Contributed Papers
Luminosity
Star & galaxy formation
Supernovae
title [FeII] as a shock tracer in NGC 253
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