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Go beyond radial gradient: azimuthal variations of ISM abundance in 3D

Published online by Cambridge University Press:  03 March 2020

I-Ting Ho
I-Ting Ho*
Affiliation:
Max Planck Institute for Astronomy, Knigstuhl 17, 69117 Heidelberg, Germany
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Abstract

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Using 3D spectroscopy data from the TYPHOON Project (PI: B. Madore), I show convincing observational evidence that the ISM oxygen abundance traced by HII regions presents systematic azimuthal variations in NGC 1365 and NGC 2997. I discuss a possible physical origin and on-going efforts to explore the prevalence and cause of such variations.

Keywords

galaxies: ISMgalaxies: abundancesgalaxies: spiralgalaxies: individual (NGC 1365, NGC 2997)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium A30: Astronomy in Focus XXX , August 2018 , pp. 259
Copyright
© International Astronomical Union 2020

References

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