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引用次数: 1
摘要
背景:确定厘米波长的太阳亮度温度一直是一个挑战。其中一个主要原因是缺乏适当的校准源。我们利用新月在2.7 cm (11.2 GHz)波段进行观测，对太阳亮度温度进行校准。太阳和月球的观测是用芬兰阿尔托大学Metsähovi射电天文台操作的1.8米射电望远镜进行的。在本文中，我们提出了一种定义静太阳能级(QSL)亮度温度的方法。根据这些观测结果，我们发现QSL温度的平均值为11 500 K±1500 K。这个值与前面报道的非常相似。
A calibration of the small solar radiotelescope using a new moon
Background: Defining the solar brightness temperature at centimetre wavelengths has always been challenging. One of the main reasons has been the lack of a proper calibration source. We carried out observations at 2.7 cm (11.2 GHz) by using the New Moon for the solar brightness temperature calibration. The solar and Moon observations were made using the 1.8-meter radiotelescope operated by the Aalto University Metsähovi Radio Observatory in Finland. In this article, we present our method for defining the brightness temperature of the quiet-Sun level (QSL). Based on these observations, we found 11 500 K±1500 K to be the mean value for the QSL temperature. This value is quite similar which was reported earlier.
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