1998 Fiscal Year Annual Research Report

赤外線宇宙天文台(ISO)を用いた初期銀河の形成期活動と恒星進化の観測的研究

Research Project

Project/Area Number	09044057
Research Institution	The University of Tokyo
Principal Investigator	川良公明東京大学, 大学院・理学系研究科, 助教授 (50292834)
Co-Investigator(Kenkyū-buntansha)	奥田治之宇宙科学研究所, 宇宙圏研究系, 教授 (50025293) 田辺俊彦東京大学, 大学院・理学系研究科, 助手 (90179812) 中田好一東京大学, 大学院・理学系研究科, 教授 (80011740) 祖父江義明東京大学, 大学院・理学系研究科, 教授 (10022667) 辻隆東京大学, 大学院・理学系研究科, 名誉教授 (20011546)
Keywords	赤外線 / 銀河 / ダスト / 星形成 / 銀河形成 / 銀河進化 / 恒星 / 晩期型星
Research Abstract	国際学術研究は、赤外線宇宙天文台(ISO)の超低温冷却軌道望遠鏡を利用した国際共同研究により、始原銀河の形成・活動および恒星の誕生・終末期の進化を解明することも目的としたものである。ISOを利用した観測としては、(1)赤外多波長領域銀河サーベイ計画において従来は不可能であった遠方にある始原銀河の探査観測、(2)マゼラン星雲内の晩期型星の赤外多色測光により恒星進化終末期における質量放出の果たす役割を研究するための観測、また(3)微細構造線の分光マッピングにより従来未開拓の光解離領域の物理構造を解明するための観測がすでに行われている。以上の観測から目的の情報を抽出するには、ISO観測装置の特性を解明し、その基礎の上に立ったISOデータの詳細な解析と、ISOと相補的な他の波長帯での観測を地上から行わなければならない。本年度は、国際協力によるISO観測装置の特性の解明に重点をおいてのべ6名をフランスに派遣した。その結果、ISO観測装置対する理解が深まり、ISO観測データの解析が大きく進展した。特に、始原銀河の探査観測のデータ解析はほとんど終了することとなった。地上からの追求観測に関連して2名をアメリカに派遣し、観測の打ち合わせと観測そのものを行った。当初予定していたキットピーク天文台とピコベレタ天文台での観測は、より観測条件の良いハワイ島マウナケア天文台のカリフォルニア工科大学サブミリ波天文台の10m望遠鏡やハワイ大学の2.2m望遠鏡を用いて行った。以上の活動の結果、ISOで発見された遠赤外線源の数は予想された値の約10倍であること、晩期型星の周囲にはそれまでのモデルでは考慮されていなかった分子ダスト生成領域が存在することなどがこれまでに分かった。

Research Products
(25 results)

All Other

All Publications (25 results)

[Publications] KAWARA,K.: "ISO deep far-infrared survey in the “Lockman Hole".I" Astronomy and Astrophysics. 336. L9-L12 (1998)
[Publications] MOURI,H.: "Mid-infrared spectroscopy of obscured IRAS galaxies" Astronomy and Astrophysics. 334. 482-488 (1998)
[Publications] BARGER,A.J.: "Submillimetre-wavelength detection of dusty star-forming galaxies at high redshift." Nature. 394. 248-251 (1998)
[Publications] AOKI,W.: "Infrared spectra of carbon stars observed by the ISO SWS.I" Astronomy and Astrophysics. 340. 222-231 (1998)
[Publications] AOKI,W.: "Detection of fine-structure line emission from carbon-rich and oxygen-rich AGB stars by the ISO SWS" Astronomy and Astrophysics. 333. L19-L22 (1998)
[Publications] HASHIMOTO,O: "A cold detached dust envelope around an oxygen-rich Mira-type AGB star R Hydrae" Astronomy and Astrophysics. 329. 213-218 (1998)
[Publications] HAMMERSLEY,P.L.: "Infrared standards for ISO.I." Astronomy and Astrophysics Supplement. 128. 207-219 (1998)
[Publications] DOMINIK,C.: "A Vega-like disk associated with the planetary system of rho(1) Cnc" 329. L53-L56 (1998)
[Publications] TANIGUCHI,Y.: "Starburst-driven Starbursts in the Heart of Ultraluminous Infrared Galaxies" Astrophysical Journal Letters. 504. L79-L83 (1998)
[Publications] TANIGUCHI,Y.: "A Multiple Merger Model for the Origin of Ultraluminous Infrared Galaxies" Astrophysical Journal Letters. 501. L167-L170 (1998)
[Publications] YAMAMURA,I.: "Detection of warm SO_2 gas in oxygen-rich AGB stars" Astronomy and Astrophysics. 341. L9-L12 (1999)
[Publications] JUSTTANONT,K.: "Discovery of CO_2 emission in AGB stars with the 13μ m dust feature" Astronomy and Astrophysics. 330. L17-L20 (1998)
[Publications] STICKEL,M.: "The ISOPHOT far-infrared serendipity north ecliptic pole minisurvey" Astronomy and Astrophysics. 336. 116-122 (1998)
[Publications] COUSTENIS,A.: "Evidence for water vapor in Titan's atmosphere from ISO/SWS" Astronomy and Astrophysics. 336. L85-L89 (1998)
[Publications] ENCRENAZ,TH.: "ISO observations of Uranus" Astronomy and Astrophysics. 333. L43-L46 (1998)
[Publications] PILBRATT,GOERAN L.: "ISOCAM images of the ‘elephant trunks' in M16" Astronomy and Astrophysics. 333. L9-L12 (1998)
[Publications] CASTRO-TIRADO,A.J.: "ISO observations of the GRB 970402 error box" Astronomy and Astrophysics. 330. 14-18 (1998)
[Publications] FLORES,H.: "Deep Galaxy survey at 6.75mu m with the ISO satellite" Astronomy and Astrophysics. 343. 389-398 (1999)
[Publications] DSERT,F.-X.: "A classical approach to faint extragalactic source extraction from ISOCAM deep surveys." Astronomy and Astrophysics. 342. 363-377 (1999)
[Publications] AUSSEL,H.: "ISOCAM observations of the Hubble Deep Field reduced with the PRETI method" Astronomy and Astrophysics. 342. 313-336 (1999)
[Publications] CILIEGI,P.: "A deep VLA survey at 20 cm of the ISO ELAIS survey region" Monthly Notices of the Royal Astronomical Society. 302. 222-244 (1999)
[Publications] MIRABEL,I.F.: "A barred spiral at the centre of the giant elliptical radio galaxy Centaurus A" Astronomy and Astrophysics. 341. 667-674 (1999)
[Publications] CHARMANDARIS,V.: "Dust in the wheel: The Cartwheel galaxy in the Mid-IR" Astronomy and Astrophysics. 341. 69-73 (1999)
[Publications] LEMONON,L.: "Deep ISOCAM view of the core of the lensing cluster A2390" Astronomy and Astrophysics. 334. L21-L25 (1998)
[Publications] MIRABEL,I.F.: "The dark side of star formation in the Antennae galaxies" Astronomy and Astrophysics. 333. L1-L4 (1998)

1998 Fiscal Year Annual Research Report

赤外線宇宙天文台(ISO)を用いた初期銀河の形成期活動と恒星進化の観測的研究

Principal Investigator

川良 公明 東京大学, 大学院・理学系研究科, 助教授 (50292834)

Research Products

[Publications] KAWARA,K.: "ISO deep far-infrared survey in the “Lockman Hole".I" Astronomy and Astrophysics. 336. L9-L12 (1998)

[Publications] MOURI,H.: "Mid-infrared spectroscopy of obscured IRAS galaxies" Astronomy and Astrophysics. 334. 482-488 (1998)

[Publications] BARGER,A.J.: "Submillimetre-wavelength detection of dusty star-forming galaxies at high redshift." Nature. 394. 248-251 (1998)

[Publications] AOKI,W.: "Infrared spectra of carbon stars observed by the ISO SWS.I" Astronomy and Astrophysics. 340. 222-231 (1998)

[Publications] AOKI,W.: "Detection of fine-structure line emission from carbon-rich and oxygen-rich AGB stars by the ISO SWS" Astronomy and Astrophysics. 333. L19-L22 (1998)

[Publications] HASHIMOTO,O: "A cold detached dust envelope around an oxygen-rich Mira-type AGB star R Hydrae" Astronomy and Astrophysics. 329. 213-218 (1998)

[Publications] HAMMERSLEY,P.L.: "Infrared standards for ISO.I." Astronomy and Astrophysics Supplement. 128. 207-219 (1998)

[Publications] DOMINIK,C.: "A Vega-like disk associated with the planetary system of rho(1) Cnc" 329. L53-L56 (1998)

[Publications] TANIGUCHI,Y.: "Starburst-driven Starbursts in the Heart of Ultraluminous Infrared Galaxies" Astrophysical Journal Letters. 504. L79-L83 (1998)

[Publications] TANIGUCHI,Y.: "A Multiple Merger Model for the Origin of Ultraluminous Infrared Galaxies" Astrophysical Journal Letters. 501. L167-L170 (1998)

[Publications] YAMAMURA,I.: "Detection of warm SO_2 gas in oxygen-rich AGB stars" Astronomy and Astrophysics. 341. L9-L12 (1999)

[Publications] JUSTTANONT,K.: "Discovery of CO_2 emission in AGB stars with the 13μ m dust feature" Astronomy and Astrophysics. 330. L17-L20 (1998)

[Publications] STICKEL,M.: "The ISOPHOT far-infrared serendipity north ecliptic pole minisurvey" Astronomy and Astrophysics. 336. 116-122 (1998)

[Publications] COUSTENIS,A.: "Evidence for water vapor in Titan's atmosphere from ISO/SWS" Astronomy and Astrophysics. 336. L85-L89 (1998)

[Publications] ENCRENAZ,TH.: "ISO observations of Uranus" Astronomy and Astrophysics. 333. L43-L46 (1998)

[Publications] PILBRATT,GOERAN L.: "ISOCAM images of the ‘elephant trunks' in M16" Astronomy and Astrophysics. 333. L9-L12 (1998)

[Publications] CASTRO-TIRADO,A.J.: "ISO observations of the GRB 970402 error box" Astronomy and Astrophysics. 330. 14-18 (1998)

[Publications] FLORES,H.: "Deep Galaxy survey at 6.75mu m with the ISO satellite" Astronomy and Astrophysics. 343. 389-398 (1999)

[Publications] DSERT,F.-X.: "A classical approach to faint extragalactic source extraction from ISOCAM deep surveys." Astronomy and Astrophysics. 342. 363-377 (1999)

[Publications] AUSSEL,H.: "ISOCAM observations of the Hubble Deep Field reduced with the PRETI method" Astronomy and Astrophysics. 342. 313-336 (1999)

[Publications] CILIEGI,P.: "A deep VLA survey at 20 cm of the ISO ELAIS survey region" Monthly Notices of the Royal Astronomical Society. 302. 222-244 (1999)

[Publications] MIRABEL,I.F.: "A barred spiral at the centre of the giant elliptical radio galaxy Centaurus A" Astronomy and Astrophysics. 341. 667-674 (1999)

[Publications] CHARMANDARIS,V.: "Dust in the wheel: The Cartwheel galaxy in the Mid-IR" Astronomy and Astrophysics. 341. 69-73 (1999)

[Publications] LEMONON,L.: "Deep ISOCAM view of the core of the lensing cluster A2390" Astronomy and Astrophysics. 334. L21-L25 (1998)

[Publications] MIRABEL,I.F.: "The dark side of star formation in the Antennae galaxies" Astronomy and Astrophysics. 333. L1-L4 (1998)

川良公明東京大学, 大学院・理学系研究科, 助教授 (50292834)