SPS2-011P
D.Tomono(1), T.Nakagawa(2), T.Onaka(1), Y.Yamashita-Yui(3), and H.Shibai(2)
(1) The University of Tokyo, Japan, tomono@optik.mtk.nao.ac.jp
(2) The Institute of Space and Astronautical Science, Japan
(3) Communications Research Laboratory, Japan
(4) Nagoya University, Japan
In order to reveal physical conditions in photon dominated regions (PDRs), we made extensive spectroscopic observations of rho Ophiuchi dark cloud with ISO/ LWS, SWS, and PHT. The cloud is one of intensively observed PDRs with an embedded B2 V star HD147889 which plays a principal role in heating of the central region of the cloud. Our observations cover all of the dominant cooling lines of PDRs. We also obtained UIR band features and far-infrared continuum. The one dimensional raster points were positioned to scan along changes of the radiation field and the gas density. Observed line intensities peak at the east of HD147889 where CO emission increases. The peaks of [C II] 158um, [O I] 145um and 63um, [Si II] 35um, and H2 nu=0-0 S(3) 9.7um align roughly in the order predicted by simple PDR models. However, there are some discrepancies between the models and the observation. Peaks of 6.2um and 7.7um UIR features are at the west of HD147889, with some other UIR features being detected. Far infrared continuum emission and its spatial changes are also seen. In this paper, we will discuss spatial variations of the physical conditions of the gas and the dust.