ISOCAM mapping of the {rho} Ophiuchi main cloud.
A. Abergel, J. P. Bernard, F. Boulanger, C. Cesarsky, F. X. Desert, E. Falgarone, G. Lagache, M. Perault, J. L. Puget, W. T. Reach, L. Nordh, G. Olofsson, M. Huldtgren, A. A. Kaas, P. Andre, S. Bontemps, M. Burgdorf, E. Copet, J. Davies, T. Montmerle, P. Persi, F. Sibille;
AaA, 1996, 315, L329
ABSTRACT:We present preliminary results of the ISOCAM survey of the {rho} Ophiuchi main
cloud L1688 (0.5 square degrees) conducted in the two broad-band filters LW2
(5-8.5{mu}m) and LW3 (12-18{mu}m).
This letter focuses on the properties of the
extended emission.
ISOCAM observations have revealed several previously
unknown characteristics of the mid-IR diffuse emission: the small scale
filamentary structure (thickness ~0.03pc) of the emission at the illuminated edge
of the molecular cloud, the sharpness of color variations at cloud edges,
the barely resolved filamentary structure of the dust emission
surrounding a bright embedded source, and several dense cores seen as sharp and deep
absorption structures against the diffuse cloud background.
KEYWORDS: ism: individual objects: rho ophiuchus (rho oph cloud), ism: dust, extinction, ism: clouds, infrared: ism: clouds
PERSOKEY:dust, PAH, MIR, ISO, H2, ,
CODE: abergel96