ASTRONOMY AND ASTROPHYSICS ISOCAM 4 m imaging of the nuclear starburst in M 83 ?
نویسندگان
چکیده
We present ISOCAM images (1.5 arcsec resolution), in the Br line and in the continuum at 4 m, of the starburst nuclear region in the nearby galaxy M83. The starburst is found to lie: a) along arc joining the 2 m sources at S and SW of the nucleus to the NW 10 m 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 m 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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