imaging of the nuclear starburst in M83 imaging of the nuclear starburst in M83D. Rouan - D. Tiphène - F. Lacombe - O. Boulade - J. Clavel - P. Gallais - L. Metcalfe - A. Pollock - R. Siebenmorgen
We present ISOCAM images (1.5 arcsec resolution), in the Br alphaline and
in the continuum at 4 , of the starburst nuclear region in the nearby
galaxy M83.
The starburst is found to lie: a) along arc joining the 2 sources at
S and SW of
the nucleus to the NW 10 peak, a possible indication of a propagating
star formation; b) at the nucleus itself
and at a bridge, linking the arc to the nucleus, that could trace a
gaseous bar.
The strong 4 continuum emission cannot be free-free and
probably corresponds to the continuum emission associated with
the Very-Small-Grain/PAH component of the dust.
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