Milli-Meter and Optical-Infrared Astronomical Observations by Using High-Level Overseas Telescopes.

本财政年度有9个政党的12人在国外任职。他们的活动和结果如下：利用IRTF，Nagata对银河系中心进行了红外成像，发现了被HII区包围的20个源的星团。长谷川利用UKIRT对银河系中心和NGC 253进行了红外光谱分析，发现了H_2分子在紫外辐射场激发下的荧光发射，西田利用UKIRT对西弗特2星系和射电星系进行了红外光谱分析，发现了Cyg A中的H_2分子。Takami利用UH 88对NGC 253进行了红外分光光度测量，得到了确定星系组成的H_2O和CO指数。西田利用KPN 04 m，对IRAS 23060 +0505和Markarian 3进行了红外光谱分析。他通过在IRAS 23060 +0505中探测到宽翼的Pa α和Pa β发射线，揭示了塞弗特I型核的存在。Ogura和Nomaru用AAT对L1641中的100个候选Herbig-Haro天体进行了光谱学研究，其中20个天体已被证实是真正的Herbig-Haro天体，Todo和Takato用AAT对H-H34进行了光谱学研究，得到了该天体上详细的速度场。Kawara和Taniguchi被授予在KPNO-4 m上进行三个晚上的“裸露的1型Seyfert和类星体中的近红外H_2发射”。然而，这次飞行完全被遮蔽了，穹顶从未被打开。Hayashi利用JCMT拍摄了朝向H-H34和H-H111的CO 3-2图像。H-Hll显示了分子发射和光学特征之间的显著一致性，特别是在蓝移喷流中。这种相关性描绘了原恒星活动与其环境之间的强烈相互作用区域。

Twelve persons in 9 parties have been dedicated abroad this fiscal year. Their activies and results are as follows :Using IRTF, Nagata has made infrared imaging toward the Galactic center and has found stellar cluster of 20 sources surrounded by HII region. Data reduction is in progress.Using UKIRT, Hasegawa has made infrared spectroscopy toward the Galactic center and NGC253 and has found fluorescent emission from H_2 molecule excited by UV radiation fields.Using UKIRT, Nishida has made infrared spectroscopy toward the Seyfert 2 galaxy and radio galaxy and has detected H_2 molecule from Cyg A. This is the first detection of H_2 from narrow-line radio galaxies.Using UH88, Takami has made infrared spectrophotometry of NGC253 and has obtained H_2O and CO index, which determine the stellar composition of the galaxies. Data reduction is in progress.Using KPN04m, Nishida has made infrared spectroscopy of IRAS23060+0505 and Markarian 3. He has revealed a presence of nucleus of Seyfert I type by detection of Pa alpha and Pa beta emission lines with broad wings in IRAS23060+0505. He has also detected H_2 molecules in Mark 3.Using AAT, Ogura and Nomaru have made optical spectroscopy of 100 candidates for Herbig-Haro objects in L1641, of which 20 objects have been confirmed as genuine Herbig-Haro objects.Using AAT, Todo and Takato have made optical spectroscopy toward H-H34 and obtained detailed velocity-fields over the object. Data reduction is in progress.Kawara and Taniguchi were awarded three nights on the KPNO-4m to carry out "Near infrared H_2 emission in Bare type 1 Seyferts and Quasars". This run was, however, entirely clouded out, the dome never being opened.Using JCMT, Hayashi has made CO 3-2 images toward H-H34 and H-H111. H-Hll shows a remarkable coincidence between the molecular emission and optical feature particularly in the blueshifted jet. This correlation delineates strongly interacting regions between the protostellar activity and its environment.