TSU PRISM Seminar No. 8-7 -- 臺空人線上講座系列

400 years after Galileo pointed a telescope at celestial objects for the first time, neutral atom astronomy adds to the electromagnetic spectrum and right away reaches its horizon with the Interstellar Boundary Explorer (IBEX), launched October 19, 2008. After validation with energetic neutral atom (ENA) images of the moon, its two ENA cameras take global images of the solar system's interaction with its galactic neighborhood.
They return stunning images of the heliospheric boundary region, where the solar wind slows down in response to the surrounding interstellar medium, only penetrated thus far by the Voyager spacecraft in two directions. Unexpectedly, the ENA images show a bright and persistent "Ribbon" across the sky, serving as a compass for the local interstellar magnetic field, whose direction agrees with previous inferences, the general direction obtained from the polarization of starlight, and the observed anisotropy of TeV cosmic rays. However, the processes leading to the bright ENA emission are still under debate. Time variations in the ENA fluxes as a function of energy provide additional constraints and implicate the neutral solar wind that penetrates beyond the heliospheric boundary.
The IBEX-Lo camera catches the interstellar neutral (ISN) wind of H, He, O, and Ne atoms that blows through the solar system at a speed of ≈26 km/s. It arises from the Sun's motion relative to the very local interstellar medium (VLISM) surrounding the solar system, first identified in the Sun's ultraviolet light, followed by pickup ions in the solar wind. The observed flow distribution is an excellent probe of the VLISM. In comparison with high-resolution absorption lines from nearby stars with the Hubble Space Telescope, the recently achieved precision of the ISN velocity vector indicates that the solar system passes through an interaction region between the two closest interstellar clouds. Together, the interstellar flow and magnetic field control the size and shape of the heliosphere and the deflection of interstellar plasma around this obstacle, whose signatures are evident in the ENA images. To resolve the puzzles uncovered by the IBEX and Voyager missions, NASA has devoted to these objectives its next solar terrestrial probe, the Interstellar Mapping and Acceleration Probe (IMAP), with a planned launch in 2025.

祝飛鴻 博士

學歷:美國維吉利亞大學航空工程博士(1978)
現職:逢甲大學航太與系統工程學系兼任教授

工作經歷:
國家太空中心(7/1992~3/2010)
- 總工程師(5/2002~3/2010)
- 副主任(3/1999~5/2002)
- 福爾摩沙一號計畫總主持人(12/1997~3/1999)
- 福爾摩沙一號衛星本體計畫主持人(6/1994~12/1997)
- 機械工程組長(6/1993~6/1994)
- 系統發展處處長(7/1992~6/1993)

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張和本 博士

學歷:美國田納西大學太空工程研究院博士

工作經歷:
- 國家太空中心資深顧問(2018/8-2020/2)
- 國家太空中心,福衛五號計畫總主持人 (2010/4-2018/7)
- 國家太空中心,資深系統工程師 (2009-10)
- 美國波音公司衛星發展部門,衛星姿控次系統負責人(Project Lead) (1997-2009)
- 國家太空中心,駐TRW福衛一號計畫技轉負責人 (1993-1997)

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張桂祥 博士

學歷:美國阿拉巴馬大學工程力學博士 (1991)
現職:中央大學太空科學與科技研究中心兼任研究員 (2020/08~)

工作經歷:
國家太空中心
- 資深研究員(2017/08~2018/07)
- 主任 (2010/04~2017/07)
- 副主任/福衛五號計畫主持人 (2008/06~2010/04)
- 國研院/業務推廣室/主任 (2005/07~2008/05)
- 地面系統組/組長 (1999/05~2005/06)

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謝克強 教授

Education: B. A., Physics, Wabash College, 1963
Ph. D., Physics, University of Chicago, 1969
Employment: University of Chicago Research Associate 1969-1970
University of Arizona Assistant Professor 1971-1976
Associate Professor 1977-1993
Professor 1994-2011
Professor Emeritus 2012

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Prof. Eberhard Möbius

Dr. Eberhard Möbius, Prof. Emeritus
Department of Physics & Astronomy and Space Science Center
University of New Hampshire, Durham, NH, U.S.A.

With a Ph.D. in Physics from the Ruhr-Universität Bochum, Germany, and twelve years at the Max-Planck-Institut für extraterrestrische Physik, Dr. Möbius joined the Space Science Center and Physics faculty of the University of New Hampshire (UNH) in 1990. His research focuses on the acceleration of particles and their transport through space with state-of-the-art particle spectrographs on NASA and ESA spacecraft, such as AMPTE IRM, FAST, Cluster, SOHO, ACE, STEREO, IBEX, and IMAP. More recently, he turned to interstellar gas and its interaction with the heliosphere, imaging the solar system boundary with energetic neutral atoms and pioneering the direct sampling of this gas. Eberhard Möbius is a Fellow of the American Geophysical Union and received several NASA and ESA Achievement Awards and UNH honors, including Distinguished Professor.

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