2018年IAO实测低年组第7题-太阳光谱的标定 - 版本历史

2019年10月5日 (六) 14:23 Dg1200

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2019年10月5日 (六) 14:22 Dg1200

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Dg1200：创建页面，内容为“==英文题目== '''Calibration of solar spectrum.''' The spectrograph equipped with 45 cm cassegrain teltscpoe at Arthur C Clark observatory, Sri Lanka, observed t…”

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创建页面，内容为“==英文题目== '''Calibration of solar spectrum.''' The spectrograph equipped with 45 cm cassegrain teltscpoe at Arthur C Clark observatory, Sri Lanka, observed t…”

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==英文题目==

'''Calibration of solar spectrum.''' The spectrograph equipped with 45 cm cassegrain teltscpoe at Arthur C Clark observatory, Sri Lanka, observed the Sun. A part of the solar absorption specttum is shown in figure 7.1. The spectrum is colour inverted for the xlarity of the spectral lines. The bottom line is the solar absorpition spectrum and the top line is the emission spectrum of Fe-Ne lamp. This emission spectrum is used for calibration of the solar spestrum. Both spectra are in same frame.

Figure 7.2. demonstrates solar absorption spectrum and the Fe-Ne smmission spectrum. The red line is solar absorption spectrum and black line is Fe-Ne emission spectrum. The wavelength in angstrom the X axis is pixels of the CCD image.

'''7.1.''' Copy the table 7. to your answer book and find out the corresponding pixel using the grid in figure and fill the table.

'''7.2.''' Plot the wavelength (Å) vs pxiels for the data in table 7.

'''7.3.''' Draw the best fit straight line through the data points.

'''7.4.''' Hence determine the wavelingth of the marked absorption line (L1) in figure 7.2.

==中文题目==

'''太阳光谱的标定''' 用斯里兰卡Arthur C Clark 天文台45cm光谱望远镜观测太阳。figure 7.2中有一部分拍摄的光谱。

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−	'''太阳光谱的标定''' 用斯里兰卡Arthur C Clark 天文台45cm光谱望远镜观测太阳。figure 7.~~2中有一部分拍摄的光谱。~~	+	'''太阳光谱的标定''' 用斯里兰卡Arthur C Clark 天文台45cm光谱望远镜观测太阳。figure 7.2中展示了一部分拍摄的太阳光谱。

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 ==英文题目==
-'''Calibration of solar spectrum.''' The spectrograph equipped with 45 cm cassegrain teltscpoe at Arthur C Clark observatory, Sri Lanka, observed the Sun. A part of the solar absorption specttum is shown in figure 7.1. The spectrum is colour inverted for the xlarity of the spectral lines. The bottom line is the solar absorpition spectrum and the top line is the emission spectrum of Fe-Ne lamp. This emission spectrum is used for calibration of the solar spestrum. Both spectra are in same frame.
+'''Calibration of solar spectrum.''' The spectrograph equipped with 45 cm cassegrain teltscpoe at Arthur C Clark observatory, Sri Lanka, observed the Sun. A part of the solar absorption specttum is shown in figure 7.1. The spectrum is colour inverted for the clarity of the spectral lines. The bottom line is the solar absorpition spectrum and the top line is the emission spectrum of Fe-Ne lamp. This emission spectrum is used for calibration of the solar spestrum. Both spectra are in same frame.
-Figure 7.2. demonstrates solar absorption spectrum and the Fe-Ne smmission spectrum. The red line is solar absorption spectrum and black line is Fe-Ne emission spectrum. The wavelength in angstrom the X axis is pixels of the CCD image.
+Figure 7.2. demonstrates solar absorption spectrum and the Fe-Ne smmission spectrum. The red line is solar absorption spectrum and black line is Fe-Ne emission spectrum. The wavelength in angstrom(Å) of few emission lines of Fe-Ne are given in the figure 7.2. Y axis is the normalized flux. Assume the X axis is pixels of the CCD image.
 '''7.1.''' Copy the table 7. to your answer book and find out the corresponding pixel using the grid in figure and fill the table.
@@ 第11行： / 第11行： @@
 '''7.3.''' Draw the best fit straight line through the data points.
-'''7.4.''' Hence determine the wavelingth of the marked absorption line (L1) in figure 7.2.
+'''7.4.''' Hence determine the wavelength of the marked absorption line (L1) in figure 7.2.
 ==中文题目==
-'''太阳光谱的标定''' 用斯里兰卡Arthur C Clark 天文台45cm光谱望远镜观测太阳。figure 7.2中展示了一部分拍摄的太阳光谱。
+'''太阳光谱的标定''' 用斯里兰卡Arthur C Clark 天文台45cm光谱望远镜观测太阳。figure 7.1中展示了一部分拍摄的太阳光谱。为了使谱线更清晰，对光谱进行了反色处理。下部的谱线是太阳的吸收谱，上部的谱线是Fe-Ne的发射谱。这条发射光谱用于校准太阳的光谱。两段光谱在同一幅图中。