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

海外高空望远镜毫米波及光学红外天文观测

• 批准号: 08041116
• 负责人: KODAIRA Keiichi
• 金额: $ 2.3万
• 依托单位: National Astronomical Observatory of Japan
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for international Scientific Research
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 无数据
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08041116/
• 关键词: interstellar dust; SiO; forming galaxy; high-redshift protogalaxy; speckle spectroscopy; quasar spectra; mid-infrared spectroscopy; interacting; merging galaxies; 合体銀河

Dr.Oishi used the 12m radiotelescope of NRAO and surveyed CH3NH2 in massive star forming regions. He found through mapping observations that CH3NH2 concentrates at the central Hll regions in SgrB2. He also used the 15m radio telescope of SEST and mapped the SgrB2 region in the J=2-1 and J=3-2 transitions. He also observed the J=5-4 transition in 12 positions where SiO emission is intense.Dr.Ohta observed the quasar BR1202-0725 which is considered to be a forming galaxy at z=4.7 in CO(J=2-1) line using the NRAO VLA aiming at revealing a physical state and distribution of the gas. Unfortunately the weather was very bad and we could not detect the emission line.Dr.Kawabe observed CO(J=2-1) line and 8 GHz continuum emission from one of the high est-redshift quasars, BR1202-075, which is thought to be a candidate protogalaxy, using Very Large Array (VLA) in National Radio Astronomy Observatory (NRAO). He could not detect CO(2-1), however found a new high-z galaxy candidate in the observing … More field of the 8 GHz observations.Dr.Baba conducted speckle spectroscopic observations of alpha Ori, omicron Cet, omicron And, 28Tau, etc. with 2.1m reflector of the San Pedro Martir Observatory in Mexico. The introduction of an active support system for the primary mirror led us to obtain good-quality data.Prof.Hidai observed high-dispersion spectra of 4 quasars with the HIRES equipped on the 10m Keck telescope. Because of rather poor weather, S/N ratios of data are not so high. The data of Ly-alpha forests and damped Ly-alpha systems are now being analyzed.Dr.Shibata have made multifrequency VLBI observations of megamaser source NGC3079 using VLBA.We investigate the gas structure near the nucleus of the galaxy with the 4.1,8,15 and 22 GHz continuum, water masers and HI absorption results.Dr.Onaka have have made observations of the mid-infrared spectra of about 30 late-type stars by the Mid-Infrared Camera & Spectrometer with two telescopes of the Mt. Lemmon Obsevatory.Dr.Sugai carried out Near-infrared line observations of interacting/merging galaxies by using a Fabry-Perot mounted on UKIRT.Because of the bad weather, he was able to observe effectively one night, out of three granted nights.Dr.Hayashi have carried out a high resolution mapping of the near-infrared spectral line of molecular hydrogen to probe the shocked structure induced by such a strong interaction.Dr.Yamashita observed several active galaxies with mid-infrared spectrograph and found that many of these active galaxies have much more flux than it has been expected. Less

大石博士使用 NRAO 的 12m 射电望远镜对大质量恒星形成区域的 CH3NH2 进行了观测。他通过测绘观测发现，CH3NH2集中在SgrB2的中部Hll区域。他还利用SEST的15m射电望远镜绘制了J=2-1和J=3-2跃迁中的SgrB2区域。他还在 SiO 发射强烈的 12 个位置观察到了 J=5-4 跃迁。Ohta 博士使用 NRAO VLA 观察了类星体 BR1202-0725，该类星体被认为是在 CO(J=2-1) 线 z=4.7 处正在形成的星系，旨在揭示气体的物理状态和分布。不幸的是，天气非常恶劣，我们无法探测到发射线。Kawabe 博士使用国家射电天文台 (NRAO) 的甚大阵列 (VLA) 观测到了红移最高类星体之一 BR1202-075 的 CO(J=2-1) 线和 8 GHz 连续发射，该类星体被认为是候选原星系。他无法探测到CO(2-1)，但在8 GHz观测领域发现了一个新的高z星系候选者。Baba博士利用墨西哥圣佩德罗马蒂尔天文台的2.1m反射镜对α Ori、omicron Cet、omicron And、28Tau等进行了散斑光谱观测。主镜主动支撑系统的引入使我们获得了高质量的数据。Hidai教授利用10m凯克望远镜上配备的HIRES观测了4个类星体的高色散光谱。由于天气比较恶劣，数据的信噪比不是很高。 Ly-alpha森林和阻尼Ly-alpha系统的数据正在分析中。Shibata博士使用VLBA对巨型微波激射器源NGC3079进行了多频VLBI观测。我们用4.1、8、15和22 GHz连续谱、水脉泽和HI吸收结果研究了星系核附近的气体结构。Onaka博士已经进行了观测 使用莱蒙山天文台的两台望远镜的中红外相机和光谱仪对约 30 颗晚型恒星的中红外光谱进行了研究。菅井博士使用安装在 UKIRT 上的法布里-珀罗对相互作用/合并星系进行了近红外线观测。由于天气恶劣，他能够在三个晚上中有效地观察到一个晚上 Hayashi博士对氢分子的近红外谱线进行了高分辨率测绘，以探测这种强相互作用引起的激波结构。Yamashita博士用中红外光谱仪观察了几个活动星系，发现许多活动星系的通量比预期的要多得多。较少的

项目成果

Jiang,B.W.,Deguchi,S,Hu,J.Y.,Yamashita,T.,Nishihara,E.,Matsumoto,S.,and Nakada,Y.: "Identification of IRAS Sources in the Outer Disk of the Galaxy" Astronomical Journal. (in press). (1997)

Jiang,B.W.、Deguchi,S、Hu,J.Y.、Yamashita,T.、Nishihara,E.、Matsumoto,S.和Nakada,Y.：“银河系外盘中IRAS源的识别”天文杂志。

Kodaira, K.and Yamashita, T.: "Near-Infrared Surface-Photometry of Edge-on Scd Galaxies, NGC3445 and NGC4244" Publication of the Astronomical Society of Japan. 48. 581-590 (1996)

Kodaira, K. 和 Yamashita, T.：“边缘 Scd 星系的近红外表面光度测量，NGC3445 和 NGC4244”，日本天文学会出版物。

M.Ohishi,S.Ishikawa,T.Amano,H.Oka,W.M.Irvine,J.E.Dickens,L.M.Ziurys and A.J.Apponi: "Detection of A New Interstellar Molecular Ion" ApJL. 471. L61-L64 (1996)

M.Ohishi、S.Ishikawa、T.Amano、H.Oka、W.M.Irvine、J.E.Dickens、L.M.Ziurys 和 A.J.Apponi：“检测新的星际分子离子”ApJL。

A.Tomita,F.E.Nakamura,T.Takata,K.Nakanishi,T.Takeuchi,K.Ohta,T.Yamada: "Distribution of Blue Galaxies in a Merging Cluster of Galaxies Abell 168" Astron. J.111. 42-52 (1996)

A.Tomita、F.E.Nakamura、T.Takata、K.Nakanishi、T.Takeuchi、K.Ohta、T.Yamada：“Abell 168 星系团合并中蓝色星系的分布”Astron。

K.Ohta, T.Yamada, K.Nakanishi, Y.Ogasaka, T.Kii, K.Hayashida: "Discovery of a type-1 Quasar at z=0.9" Astrophys.J.Lett.458. L57-L61 (1996)

K.Ohta、T.Yamada、K.Nakanishi、Y.Ogasaka、T.Kii、K.Hayashida：“在 z=0.9 处发现 1 型类星体”Astrophys.J.Lett.458。