广域红外巡天探测者AllWISE数据释放

AllWISE数据综合WISE低温和后低温探测阶段的数据，形成了目前可用的中红外天空的最全面视图。AllWISE制作了一个新的源星表和图像图谱，与早期的WISE数据发布相比，其灵敏度和准确性都有所提高，包括测光数据和天测量数据。它包含了在AllWISE暗场图像集上探测到的747，634，026个天体的天体测量和星等测量，每个源的位置、星等、天体测量和光度不确定性、象征源特征的可靠性和质量的标号，以及与2MASS点和扩展源星表的关联都包括在内。一般情况下AllWISE的数据优于All Sky的数据，少数情况下All Sky的数据优于 AllWISE的数据。

The AllWISE dataset combines data from the WISE cryogenic and post-cryogenic survey phases to create the most comprehensive view of the mid-infrared sky currently available. AllWISE produces a new source catalog and image atlas with improved sensitivity and accuracy compared to the early WISE data releases, including photometric and astrometric data. It contains astrometric and magnitude measurements for 747,634,026 celestial objects detected in the AllWISE dark field image set, with information including the position, magnitude, astrometric and photometric uncertainties of each source, flags indicating the reliability and quality of source characteristics, as well as associations with the 2MASS Point Source Catalog and Extended Source Catalog. In general, AllWISE data outperforms All Sky data, while only in rare cases does All Sky data outperform AllWISE data.

搜集汇总

背景与挑战

背景概述

广域红外巡天探测者AllWISE数据释放是一个包含747,634,026个天体测量和光度测量数据的目录，提供了天体的位置、星等、运动测量等信息。该数据集在W1和W2波段的灵敏度、光度测量精度和天体测量精度上相比之前的版本有显著改进，特别适合用于中红外天空离散天体的研究。