AFGL4029 is a star forming region dominated by a YSO and a compact HII region.
Observed in the mid-IR with CAMIRAS mounted at the CFHT, the emission
associated with the YSO is extended, probably due to an envelope. The near and
mid-IR observations also revealed an arc-shaped nebulosity, which seems to be
associated with the YSO. However, the nature of this nebulosity remains
unclear. Moreover, recent observations show that the centre of the CO outflow
is shifted 10 arcsec to the north of the YSO's position. Therefore, we think
that an embedded source could generate this outflow.
In order to search for such a source, AFGL4029 has been observed
in September 1997 with ISOCAM in the LW9 filter. Due to the strong background
emission associated with the young cluster and the low S/N ratio, the possible
embedded source has not been detected. Moreover, the arc-shaped nebulosity
seems to be present in emission at 15 microns but here also, the S/N is too
low to reach a firm conclusion.
In order to ascertain the nature of this nebulosity and to obtain a higher S/N
ratio for the possible embedded source's detection, we propose to re-observe
AFGL4029 with ISOCAM in the LW9 filter. Note that AFGL4029 was also recently
included in the ISOGAL program (GT proposal, collaboration with A. Omont).
All these observations will allow a complete overview of this interesting
star forming region.