AKARI-CAS-Online Service for AKARI All-Sky Catalogues
AKARI-CAS-Online Service for AKARI All-Sky Catalogues
复制标题
AKARI-CAS-AKARI 全天目录在线服务
DOI：
10.1086/660926
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发表时间：
2011
影响因子：
3.5
通讯作者：
et al
中科院分区：
文献类型：
--
作者：
Yamauchi;C.;et al
AKARI全天星表是下一代天文学的重要红外天文数据库，取代了IRAS星表。我们为天文学家开发了一个在线服务，AKARI目录存档服务器（AKARI-CAS）。该服务包括有用和有吸引力的搜索工具和视觉工具。AKARI-CAS的新功能之一是缓存的SIMBAD/NED条目，它可以将AKARI目录与存储在SIMBAD或NED中的其他目录进行匹配。为了允许对数据库进行高级查询，还支持直接输入SQL。在这些查询中，注册目录之间的快速动态交叉识别是一个显着的功能。此外，多波长快速图像显示在可视化工具中，这将增加服务的价值。在我们的服务建设中，我们考虑了各种各样的天文学家的要求。作为我们讨论的结果，我们得出结论，支持用户的SQL提交是满足需求的最佳解决方案。因此，我们实现了一个RDBMS层，以便它覆盖重要的功能，包括表的整个处理。我们发现，PostgreSQL是最好的开源RDBMS产品，用于此目的，我们写了简单和高级搜索到SQL存储函数的代码。为了以最小的成本实现快速径向搜索和交叉识别的这种存储功能，我们应用了一种不基于HTM或HEALPix的简单技术。相比之下，在线应用程序层变得紧凑，并且用简单的过程化PHP代码编写。总之，我们的系统实现了具有成本效益的维护和增强。
The AKARI All-Sky Catalogues are an important infrared astronomical database for next-generation astronomy that take over the IRAS catalog. We have developed an online service, AKARI Catalogue Archive Server (AKARI-CAS), for astronomers. The service includes useful and attractive search tools and visual tools. One of the new features of AKARI-CAS is cached SIMBAD/NED entries, which can match AKARI catalogs with other catalogs stored in SIMBAD or NED. To allow advanced queries to the databases, direct input of SQL is also supported. In those queries, fast dynamic cross-identification between registered catalogs is a remarkable feature. In addition, multiwavelength quick-look images are displayed in the visualization tools, which will increase the value of the service. In the construction of our service, we considered a wide variety of astronomers' requirements. As a result of our discussion, we concluded that supporting users' SQL submissions is the best solution for the requirements. Therefore, we implemented an RDBMS layer so that it covered important facilities, including the whole processing of tables. We found that PostgreSQL is the best open-source RDBMS products for such purpose, and we wrote codes for both simple and advanced searches into the SQL stored functions. To implement such stored functions for fast radial search and cross-identification with minimum cost, we applied a simple technique that is not based on HTM or HEALPix. In contrast, the online application layer became compact and was written in simple procedural PHP codes. In total, our system realizes cost-effective maintenance and enhancements.