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Small-scale dust continuum structure in the tex2html_wrap_inline617 Ophiuchi cloud cores

F.Motte tex2html_wrap_inline729 , P.André tex2html_wrap_inline729 , R.Neri tex2html_wrap_inline731 , A.Abergel tex2html_wrap_inline733
tex2html_wrap_inline729 Service d'Astrophysique, CEA/DSM/DAPNIA, Centre d'Etudes de Saclay, F-91191 Gif-sur-Yvette Cedex, France
tex2html_wrap_inline731 Institut de RadioAstronomie Millimétrique, 300 rue de la Piscine, F-38406 Saint Martin d'Hères, France
tex2html_wrap_inline733 Institut d'Astrophysique Spatiale, Université Paris-Sud, F-91405 Orsay, France
Abstract: We summarize the results of an extensive 1.3mm continuum mapping study of the tex2html_wrap_inline617 Ophiuchi main cloud obtained with the IRAM 30m telescope equipped with the MPIfR 19-channel bolometer array. The mosaiced field covers about 1pc tex2html_wrap_inline779 with enough sensitivity to probe, for the first time, cloud cores, star-less clumps, and circumstellar envelopes/disks simultaneously. A comparison with the ISOCAM 6.75 tex2html_wrap_inline781 m and 15 tex2html_wrap_inline781 m images of tex2html_wrap_inline617 Oph obtained as part of the ISO central programme survey by Nordh, Olofsson et al.\ is presented. There is a good correspondence between the cores/clumps detected in emission at 1.3mm and the dark absorption structures seen in the ISOCAM images.
To appear in ``Star Formation with ISO'', Proc.Lisbon Meeting, June 1997