半自動簡化遠紅外線赫歇爾外差單點光譜儀


SEMINAR:- Semi-Automatic Reduction of Herschel/HIFI Single-Point Spectra

The Herschel-Heterodyne Instrument for the Far-infrared (HIFI) on board the Herschel Space Observatory provides high resolution spectra that reveals the physical and chemical properties of many circumstellar/interstellar environments. In particular, for the case of evolved stars such as the asymptotic giant branch (AGB) stars, many molecular line features (e.g. NH3, H2O, CO) originated from the circumstellar envelopes can be observed with unprecedented details. The team in the Nicolaus Copernicus Astronomical Centre, in collaboration with the European Space Astronomy Centre, has started a project to build a database providing all reduced HIFI spectra of evolved stars observed in the Single-Point mode, together with information such as line identification and the corresponding spectral parameters. In this talk, I shall report on the first stage of the project, which involves developing a semi-automatic reduction procedure for handling the large amount of spectra.

時間:2017.04.28(五) 15:00
地點:香港大學 莊月明物理樓522室
講者:Dr. Bosco H. K. Yung (Nicolaus Copernicus Astronomical Centre, Poland)
語言:英語

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此活動由香港大學物理系主辦。

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