Millimeter and Optical-Infrared Astronomical Observations by Using High-level Overseas Telescopes

为了探测蛇夫座超星系团和大力神星系团之间的壁面结构，Wakamatsu博士在英澳天文台用48英寸施密特望远镜的多目标望远镜进行了观测。通过这次观测获得了500多个星系的高质量光谱。发现了垂直于局部超星系团平面的壁面结构的迹象。Ichikawa博士和Honma先生用安装在加拿大-法国-夏威夷望远镜上的高空间分辨率的CCDSIS相机观测了几个遥远的星系，速度在10,000-20,000公里/S红移速度。用安装在加拿大-法国-夏威夷望远镜上的高空间分辨率的SIS相机获得了V，R，V，R五个星系的I图像。从目前的数据和Nobeama的CO发射数据，得到了星系的距离和哈勃常数。巴巴博士在墨西哥圣佩德罗火星天文台对Be双星进行了观测。他们研制的散斑光谱相机安装在2.1米望远镜的卡塞格伦焦点上。部分ob…更多的双星将在空间上分开并进行光谱分析。他们还对相距很远的双星进行了观测，并证明了相距较远的恒星可用于高分辨率移位相加成像作为参考。Kashikawa博士和Sekiguchi博士与卡内基研究所合作，观察了BVR三个色库中的星系团，在拉斯坎普纳斯天文台，利用他们的马赛克CCD相机(4000x7000像素)，在这些星系团的暗区发现了光度函数的显著差异。这种差异主要是由于矮星系。他们正在做进一步的数据分析和准备文章。田村博士和村川先生利用棱镜阵列光谱仪(PASP2)在怀俄明大学2.3米望远镜和莱蒙山1.5米望远镜上对金牛座暗云的背景和嵌入恒星进行了近红外光谱调查。大量的样本使我们能够详细地确定暗星云的分布云内冰带的特征是3微米。此外，关于暗云和环绕恒星环境中冰幔生长的重要信息。杉井博士曾两次飞到美国，利用Lick 3-m望远镜对星暴星系进行近红外光谱观测。近红外观测有助于了解它们的活动。他用双光束相机观测了大波长的星暴星系。大约10个观测星系的数据I正在减少。星系的发射机制似乎有很大的不同。这种分解将使我们能够了解星暴的起源和演化。山田博士与NEAR一起进行了一次观测-安装在美国莫纳克亚天文台夏威夷大学2.2米望远镜上的红外相机QUIRC为了识别z=1.1的类星体周围遥远的星系团。在这一点上，构成星系团的椭圆星系的光学-近红外颜色发生了红移，利用这一性质，他试图在已经在深部光学图像中探测到星系表面密度增强的区域识别一个星团。他可以获得相当好的数据，数据分析目前正在进行中。Sugitani博士使用CTIO 1.5米望远镜和CIRIM观测了45个带有IRAS点源的明亮边缘云，以寻找在南部天空的Ob组合内/周围触发恒星形成的证据。他已经完成了对这些对象的JHK成像的70%，发现了许多被认为是由于紫外线形成OB组合而触发形成的低质量或中等质量星团。较少

Dr.Wakamatsu made observations with a multi-object spectograph of the 48-inch Schmidt telecope at Anglo Australia Observatory, in order to detect wall structures between Ophiuchus super cluster of galaxies and Hercules one.High quality spectrum of more than five hundred galaxies were obtained by the present observations.A sign of wall structure perpendicular to a local super cluster plane was detected.Dr.Ichikawa and Mr.Honma observed several distant galaxies in 10,000-20,000 km/s red shift velocities using a high spatical resolution CCD camera SIS mounted on Canada-France-Hawaii telescope at Mouna Kea in the US.They obtained V,R,I images of five galaxies.From the present data and Nobeyama's CO emission data, the distance of the galaxies and the Hubble constant were obtained.Dr.Baba conducted observations of Be binary stars at the San Pedro Martir Observatory in Mexico.Their developed speckle spectroscopic camera was attached to the Cassegrain focus of the 2.1m telescope.Some of the ob … More served Be binaries will be spatially separated and analyzed spectroscopically.They also conducted observations of widely separated binaries and have shown that a widely separated staris are usable for high-resolution Shift-and-Add imaging as a reference.In collaboration with the Carnegie Institution, Drs.Kashikawa and Sekiguchi observed clusters of galaxies in BVR three color banks, using their mosaic CCD camera (4000x7000pixels) with a telescope at Las Campnas observatory.They found a significat difference in the luminosity function in the faint regions of these clusters.This difference is mostly due to dwarf galaxies.They are doing further data analysis and preparing articles.Dr.Tamura and Mr.Murakawa have conducted near-infrared spectroscopic surveys of background and embedded stars toward the Taurus dark cloud with using the prism array spectrometer (PASP2) on the University of Wyoming 2.3m telescope and on the Mount Lemmon 1.5m telescope.The great number of the sample has enabled us to determine in detail the distribution of ice-band features at 3 micron within the cloud.Furthermore, important information on the growth of ice mantle within dark clouds and circum stellar environments.Dr.Sugai flew twice to the United States in order to carry out near-infrared spectroscopic observations of starburst galaxies by using Lick 3-m telescope.Near-infrared observations are useful for understanding their activities.He observed starburst galaxies in a wide range of wavelengths by using a double-beamed camera.The data of about ten observed galaxiesI are being reduced.The emission mechanisms seem to vary drastically among galaxies.This kind of decompositions will enable us to understand the origin and evolution of starbursts.Dr.Yamada made an observation with near-infrared camera QUIRC attached to the University of Hawaii 2.2m telescope at Mauna Kea Observatory (U.S.A.) to identify a distant cluster of galaxies around a quasar at z=1.1.At this redshift the optical-NIR color of elliptical galaxies, which constitute clusters, are observed very red.By using this nature he is trying to identify a cluster at the region where enhancement of galaxy surface density has already been detected in deep optical image.He could obtain reasonably good data and data-analysis is in progress now.Dr.Sugitani used CTIO 1.5m telescope with CIRIM to survey 45 bright-rimmed clouds with IRAS point sources for evidence of triggered star formation in/aroundOb associations of the southern sky.He has completed 70% of JHK imagingfor these objects and found many clusters of low-mass or intermediate-massstars which are considered to be forme due to the triggering by UV formthe OB associations. Less