2004 Fiscal Year Final Research Report Summary
High Resolution Infrared Survey of the Southern Sky
| Project/Area Number |
13573001
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
Astronomy
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| Research Institution | KYOTO UNIVERSITY (2004)
Nagoya University (2001-2003) |
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Principal Investigator |
NAGATA Tetsuya Kyoto University, Department of Astronomy, Professor, 大学院・理学研究科, 教授 (80208016)
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| Co-Investigator(Kenkyū-buntansha) |
SATO Shuji Nagoya University, Department of Astrophysics, Professor, 大学院・理学研究科, 教授 (50025483)
HIRAO Takanori Nagoya University, Department of Astrophysics, Research Associate, 大学院・理学研究科, 助手 (00293689)
TAMURA Motohide National Astronomical Observatory, Optical & IR Division, Assoc.Professor, 光赤外天文研究部, 助教授 (00260018)
TANABE Toshihiko University of Tokyo, Department of Astronomy, Research Associate, 大学院・理学系研究科, 助手 (90179812)
ITOH Yohichi Kobe University, Department of Earth & Planetary Sciences, Research Associate, 大学院・自然科学研究科, 助手 (70332757)
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| Project Period (FY) |
2001 – 2004
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| Keywords | Optical & Infrared Telescope / Infrared Survey / Dark Cloud / Milky Way / Star Forming Region / Globule / Interstellar Dust / Galaxy |
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| Research Abstract |
We have obtained unprecedented data of the southern sky, attaching the 3-band simultaneous infrared camera SIRIUS on the 1.4-m telescope constructed at South African Astronomical Observatory.
We first compared the mass functions of the star-forming regions such as W3 and NGC7538 with the newly obtained southern star-forming regions in the first publications. Next, in the Lupus dark cloud, we obtained infrared images down to very faint levels, and found a shining nebula in the near-infrared. We concluded that the nebula reflects the background starlight ; the size distribution of the dust grains should stretch to fairly large sizes, which constrains the evolution of the dust grains in dark clouds.
In the star-forming region S269, we found a large number of infrared sources.
From the survey of the Vela giant molecular cloud, we discovered an extremely dense cluster of young (2-3Myr) stars. It has an about 0.5pc radius and at least 350 stars, with the heavier stars toward the center. We surveyed M16 and M17, where high mass stars are forming, and also the star-forming regions Chamaeleon and Ophiucus.
The Great Attractor region was also surveyed for the galaxies behind the Galactic plane. The survey of the 30-arcmin region abound the radio galaxy PKS1343-601 produced several dozens of galaxies, but the number of them is far from a rich cluster of galaxies.
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Research Products
(24 results)
