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學歷 |
- 德國Bonn University天文物理所博士(1991/09-1994/06)
- 國立台灣大學物理所碩士(1989/09-1991/06)
- 國立清華大學物理系學士(1983/09-1987/06)
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現職與經歷 |
現職：國立清華大學物理系教授 ( 2006.08–)
經歷：
- 新竹市清華大學物理系副教授 (2000.08–2006.07)
- 國立清華大學物理系助理教授(1997/08-2000/07)
- 國立清華大學物理系博士後研究員(1996/12-1997/07)
- Los Alamos National Laboratory, USA Nonproliferation and International Security Division 博士後研究員(1994/12-1996/12)
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研究領域 |
- 天文物理
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研究興趣與成果 |
Updated in December, 2009
(1) 康卜吞望遠鏡計畫
這項計畫的目的是研製一個以高純度鍺為材料的 gamma 射線 (0.2 – 10 MeV) 偵測器 , 已在 2005 年 6 月及 2009 年 5 月進行兩次高空氣球飛行測試。預定在 2010 年 4 月再進行一次高空氣球飛行測試 , 做為未來衛星計畫的基礎 . 主要的科學目標包括探討銀河中心的電
子正子成對湮滅的輻射 , 鋁 26 同位素的來源 , 以及波霎 gamma 射線偏極化的測量 . 這項計畫是台灣幾所大學以及國家太空中心與美國加州柏克萊大學的合作計畫 . 清華大學是台灣團隊的計畫主持機構 .
(2) 超快天文測光儀 (UltraPhot)
UltraPhot 是一個多光纖快速天文測光儀。它將安裝在智利 Cerro Panaral 歐洲南天天文台 (ESO) 極大望遠鏡 (VLT) 的 UT2 (Kueyen) 上。 UltraPhot 將以 100 赫茲的高速同時觀測 200 個天體。以如此快的測光速度以及一個 八公尺 的望遠鏡在可見光波段觀測，將有可能發現許多新的現象，例如在緊密雙星系統中或是剛形成的恆星周圍，尤其重要的是將有可能首次偵測到確定的古柏帶以及奧特雲裏海王星外天體可見光掩星事件。 UltraPhot 的一個先期測試模型 (MEFOS) 已先安裝在法國南部上普羅旺斯天文台 (OHP) 的 193-cm 望遠鏡上。本計畫是由國科會所支持的一項與法國巴黎天文台的合作。
(3) 海王星外天體的 X 射線掩星事件
除了未來利用 UltraPhot 找尋 海王星外天體的掩星事件外，我們已從 Sco X-1 的 RXTE/PCA 資料庫數據中也發現可能的海王星外天體 X 射線掩星事件。我們持續進行 Sco X-1 的 RXTE 觀測，並且研究海王星外天體的各種性質 , 例如其數量與大小的分布 . 這些都和早期太陽系行星形成的過程有關 . 我們同時也在嘗試著建立一個利用海王星外天體的 X 射線掩星事件來解析背景緻密 X 光天體的方法 .
(4) 孤立的中子星
孤立的中子星以各種面貌出現 , 例如大部分的無線電波霎 , gamma 射線波霎 , 異常 X 射線波霎 , 軟 gamma 爆重覆源 , 以及某些孤立的 X 射線源 . 它們有些具有超強的磁場 (10 14 - 10 15 G ,, 超強磁中子星 ), 有些可能是夸克星 . 在它們的磁層裡有各種輻射產生 . 我們同時從觀測與理論模型兩方面研究這些系統 .
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代表著作 |
- [2009] J. Takata, H.-K. Chang (2009) Non-thermal emissions from outer magnetospheric accelerators of middle-aged pulsars, MNRAS 392, 400
- [2007] H.-K. Chang , S. Boggs, Y.-H. Chang (2007) The Nuclear Compton Telescope (NCT) project – Scientific Goals and Expected Sensitivity, Advances in Space Research , 40, 1281
- [2007] H.-K. Chang, J.-S. Liang, C.-Y. Liu, S.-K. King (2007) Millisecond Dips in the RXTE/PCA Light Curve of Sco X-1 and TNO Occultations, MNRAS 378, 1287 (2007)
- [2006] H.-K. Chang, S.-K. King, J.-S. Liang, P.-S. Wu, L. C.-C. Lin, C.-J. Chiu Occultation of X-rays from Scorpius X-1 by Small Trans-Neptunian Objects, Nature 442, 660 (2006)
- [1999] H.-K. Chang, D.-Y. Chou, M.-T. Sun., In Search of Emerging Magnetic Flux underneath the Solar Surface with Acoustic Imaging, ApJ 526, L53 (1999)
- [1997] H.-K. Chang , D.-Y. Chou, B. LaBonte, the TON team, Ambient Acoustic Imaging in Helioseismology , Nature 389, 825 (1997)
- [1997] H.-K. Chang, C. Ho, RXTE Observation of PSR B1951+32 , ApJ 479, L125 (1997)
- [1995] H.-K. Chang, Magnetic Inverse Compton Scattering above Polar Caps , A&A 301, 456 (1995)
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全部著作
(Click 展開/隱藏)
A. Journal Papers:
- 'Pulsar Nebulae', 1992, Wolfgang Kundt, Hsiang-Kuang Chang, Astrophysics and Space Science 193, 145
- 'Gamma-Ray Bursts from Nearby Neutron Stars', 1993, Wolfgang Kundt, Hsiang-Kuang Chang, Astrophysics and Space Science 200, 151
- 'Pulsar Radio Emission', 1993, Hsiang-Kuang Chang, Wolfgang Kundt, Astrophysics and Space Science 209, 313
- 'Magnetic Inverse Compton Scattering above Polar Caps', 1995, Hsiang-Kuang Chang, Astronomy and Astrophysics 301, 456
- 'Optical Pulse Polarization of the Crab Pulsar', 1996, Kaiyou Chen, Hsiang-Kuang Chang, Cheng Ho, Astrophysical Journal 471, 967
- 'The Soft Spectrum of PSR B1509-58', 1996, Hsiang-Kuang Chang, Kaiyou Chen, Cheng Ho, Astronomy and Astrophysics Supplement Series 120, C81
- 'RXTE Observation of PSR B1951+32', 1997, Hsiang-Kuang Chang, Cheng Ho, Astrophysical Journal 479, L125
- 'Ambient Acoustic Imaging in Helioseismology', 1997, Hsiang-Kuang Chang, Dean-Yi Chou, Barry LaBonte, the TON team, Nature 389, 825 (NSC-86-2112-M-007-036)
- 'Probing Solar Active Regions with the Phase Information of Acoustic Imaging', 1998, Huei-Ru Chen, Dean-Yi Chou, Hsiang-Kuang Chang, Ming-Tsung Sun, Sheng-Jen Yeh, Barry LaBonte, the TON team, Astrophysical Journal 501, L139 (NSC-87-2112-M-007-044, NSC-87-2112-M-007-050)
- 'Rossi X-ray Timing Explorer Observation of PSR B0656+14', 1999, Hsiang-Kuang Chang, Cheng Ho, Astrophysical Journal 510, 404
- 'Acoustic Imaging in Helioseismology', 1999, Dean-Yi Chou, Hsiang-Kuang Chang, Ming-Tsung Sun, Barry LaBonte, Huei-Ru Chen, Sheng-Jen Yeh, the TON team, Astrophysical Journal 514, 979 (NSC-87-2112-M-007-044, NSC-87-2112-M-007-050)
- 'Determining Emission Location and Mechanisms of High Energy Emission from Pulsars -- the Role of INTEGRAL', 1999, Hsiang-Kuang Chang, Tz-Feng Guo, Mao-Chang Liang, Cheng Ho, Astrophysical Letters and Communications 38, 53
- 'In Search of Emerging Flux underneath the Solar Surface with Acoustic Imaging', 1999, Hsiang-Kuang Chang, Dean-Yi Chou, Ming-Tsung Sun, Astrophysical Journal 526, L53 (NSC-88-2112-M-007-036, NSC-88-2112-M-007-037)
- 'A Study of Sunspots with Phase Time and Travel Time of P-mode Waves in Acoustic Imaging', 2000, Dean-Yi Chou, Ming-Tsung Sun, Hsiang-Kuang Chang, Astrophysical Journal 532, 622 (NSC-88-2112-M-007-036, NSC-88-2112-M-007-037)
- 'X-ray Timing Analysis of PSR B1951+32 with ASCA and RXTE Data', 2000, Hsiang-Kuang Chang, Tz-Feng Guo, Chinese Journal of Physics 38, 429 (NSC-89-2112-M-007-017)
- 'Determining the Magnetic Inclination of PSR B0656+14 with Its Thermal X-ray Emission', 2001, Hsiang-Kuang Chang, Chinese Journal of Physics, Chinese Journal of Physics 39, 319 (NSC 89-2112-M-007-055)
B. Conference Proceedings:
- 'Nearby Neutron Stars as the Sources of the Gamma-Ray Bursts', 1994, Wolfgang Kundt, Hsiang-Kuang Chang, in: AIP Conf. Proc. 307, eds. G. J. Fishman, J. J. Brainerd, K. Hurley, page 596
- 'Spectral Studies of Magnetic Photon Splitting in the March 5 Event and SGR 1806-20', 1996, Hsiang-Kuang Chang, Kaiyou Chen, Ed Fenimore, Cheng Ho, in: Proceedings of the 3rd Huntsville Symposium on Gamma Ray Bursts, AIP Conf. 384, New York, page 921
- 'Acoustic Imaging and Subsurface Absorption Structure of Sunspots', 1997, Hsiang-Kuang Chang, Dean-Yi Chou, Barry LaBonte, the TON team, in: Proceedings of IAU Symposium 185, Kyoto, page 219 (NSC-87-2112-M-007-044, NSC-87-2112-M-007-050)
- 'Results of Acoustic Imaging with the TON Data', 1998, Dean-Yi Chou, Hsiang-Kuang Chang, Huei-Ru Chen, Barry LaBonte, Ming-Tsung Sun, Shen-Jen Yeh, the TON team, in: Proceedings of SOHO 6 / GONG 98 Workshop, Boston, page 597 (NSC-87-2112-M-007-044, NSC-87-2112-M-007-050, NSC-87-2112-M-182-003)
- 'Subsurface Acoustic Images of Solar Active Regions in Different Frequencies with TON Data', 1998, Hsiang-Kuang Chang}, Dean-Yi Chou, Huei-Ru Chen, Barry LaBonte, Ming-Tsung Sun, Shen-Jen Yeh, the TON team, in: Proceedings of SOHO 6 / GONG 98 Workshop, Boston, page 621 (NSC-87-2112-M-007-044, NSC-87-2112-M-007-050, NSC-87-2112-M-182-003)
- 'Dissipation and Emission of P-mode in the Quiet Sun from Acoustic Imaging with TON Data', 1998, Ming-Tsung Sun, Dean-Yi Chou, Hsiang-Kuang Chang, Huei-Ru Chen, Shen-Jen Yeh, Barry LaBonte, the TON team, in: Proceedings of SOHO 6 / GONG 98 Workshop, Boston, page 657 (NSC-87-2112-M-007-044, NSC-87-2112-M-007-050, NSC-87-2112-M-182-003)
- 'Acoustic Imaging and Subsurface Structure of Solar Active Regions', 1998, Hsiang-Kuang Chang, Dean-Yi Chou, Huei-Ru Chen, the TON team, in: Proceedings of the 3rd Advances in Solar Physics Euroconference, Potsdam, ASP Conf. Series 184, page 171 (NSC-88-2112-M-007-036, NSC-88-2112-M-007-037)
- 'ASCA and RXTE Upper Limits to Pulsed Emissions from PSR B1951+32 ', 1999, Hsiang-Kuang Chang, Tz-Feng Guo, in: Proceedings of IAU Colloquium 177, Bonn, ASP Conf. Series 202, page 327 (NSC-89-2112-M-007-017)
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