Bibcode
Ryder, Stuart D.; Sharp, Robert G.; Knapen, Johan H.; Mazzuca, Lisa M.; Parry, Ian R.
Bibliographical reference
THE EVOLUTION OF STARBURSTS: The 331st Wilhelm and Else Heraeus Seminar. AIP Conference Proceedings, Volume 783, pp. 155-160 (2005).
Advertised on:
8
2005
Citations
4
Refereed citations
4
Description
We present results from near-infrared integral-field spectroscopy of the
circumnuclear starburst in M83, using the CIRPASS instrument on Gemini
South. The combination of Paβ, CO (6,3), and [Fe II] equivalent
width measurements over large contiguous regions allows us to track the
spatial propagation of star formation across the ringlet, which is too
heavily obscured to be properly analysed at optical wavelengths. We find
the clearest evidence yet for an age gradient, with the youngest
clusters found closest to where the dust lane crosses the ringlet. We
discuss the implications for gas fueling by the bar.