Digitization, Measurement, and Analysis of a 1905 Barnard Atlas Photographic Plate
Digitization, Measurement, and Analysis of a 1905 Barnard Atlas Photographic Plate
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DOI：
10.1088/1538-3873/ac87cf
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发表时间：
2022-09
影响因子：
3.5
通讯作者：
Rowen Glusman;Lauren Boegen;W. Cerny;Ali Chapman;Isaiah Escapa;R. Kron;Michael N. Martinez;Amanda Muratore;Audrey P. Scott
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文献类型：
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作者：
Rowen Glusman;Lauren Boegen;W. Cerny;Ali Chapman;Isaiah Escapa;R. Kron;Michael N. Martinez;Amanda Muratore;Audrey P. Scott
在本系列的第二篇论文中，我们改进了之前对商用图形艺术扫描仪和具有成本效益的分析工具的能力的演示，以生成科学上有用的天文摄影底片扫描。我们描述了一种方法，使用免费提供的工具来提取星等测量的星星图像上的天空调查板，如存储在世界各地的天文台档案。我们详细介绍了这种方法在一个图版上的应用，特别是在E. E. Barnard的A Photographic Atlas of Selected Regions of the Milky Way，研究了我们的扫描方法对我们的星等测量的影响，讨论了在拥挤的领域测量恒星星等时遇到的困难，并提出了一个案例研究红超巨星出现在该领域。我们的工作在中心6.8 ° × 6.8 °视场内产生了66，000多个恒星位置和星等测量值。
In the second paper in this series, we improve on our previous demonstration of the ability of a commercially available graphic arts scanner and cost-effective analysis tools to produce scientifically useful scans of astronomical photographic plates. We describe a method using freely available tools to extract magnitude measurements from the star images on sky-survey plates, such as are stored in observatory archives around the world. We detail the use of this method on one plate in particular, Plate 8 in E. E. Barnard’s A Photographic Atlas of Selected Regions of the Milky Way, examine the effects of our scanning method on our magnitude measurements, discuss the difficulties encountered when measuring the magnitudes of stars in crowded fields, and present a case study of red supergiant stars appearing within the field. Our work results in a catalog of more than 66,000 measurements of stellar positions and magnitudes in the central 6.°8 × 6.°8 field of view.