论文标题
太阳天文台爱因斯坦塔 - 数字化太阳能全盘照相板档案的数据发布
Solar observatory Einstein Tower -- Data release of the digitized solar full-disk photographic plate archive
论文作者
论文摘要
我们提出了太阳能全盘观测，这些观察结果是在1943年至1991年期间在爱因斯坦塔（Einstein Tower）记录的（太阳能循环18-22）。来自Potsdam和柏林的高中生在AIP的两到三周实习期间数字化了3500多个全盘图像。数字图像覆盖了15厘米$ \ times $ 15厘米的摄影板，该板的分辨率为7086 $ \ times $ 7086像素。原始数据是标记的图像文件格式（TIFF）的单色8位图像。这些图像被校准并以改进的光度精度保存为16位图像，具有2048 $ \ times $ 2048像素的柔性图像传输系统（fits）格式，其中包含大量描述全盘图像和观测值的标头。各种校准步骤包括，例如，太阳半径的准确测量，确定肢体变形函数以及建立精确的坐标系。研究人员和公众在公共可访问的存储库中免费获得对比增强和肢体变形的校正图像以及原始数据。数据以供天文使用（掌声）项目的摄影板档案的特殊数据发布发布。
We present solar full-disk observations, which were recorded at the Einstein Tower during the years 1943 - 1991 (Solar Cycles 18 - 22). High-school students from Potsdam and Berlin digitized more than 3500 full-disk images during two- to three-week internships at AIP. The digital images cover a 15 cm $\times$ 15 cm region on photographic plates, which were scanned at a resolution of 7086 $\times$ 7086 pixels. The raw data are monochromatic 8-bit images in the Tagged Image File Format (TIFF). These images were calibrated and saved with improved photometric precision as 16-bit images with 2048 $\times$ 2048 pixels in the Flexible Image Transport System (FITS) format, which contains extensive headers describing the full-disk images and the observations. The various calibration steps include, for example, accurate measurements of the solar radius, determination of the limb-darkening function, and establishing an accurate coordinate system. The contrast-enhanced and limb-darkening corrected images as well as the raw data are freely available to researchers and the general public in publicly accessible repository. The data are published as a special data release of the Archives of Photographic PLates for Astronomical USE (APPLAUSE) project.
