Once the name or coordinates are successfully resolved the object box turns green and a confirmation message is shown. 1 allows to choose the service that will be queried to obtain the object coordinates (by default the system tries Simbad, then NED, and then Vizier, but if the input name is a Gaia designation the system queries the Gaia Archive). The drop-down menu highlighted by the thin solid circle in Fig. The single object search launches an ADQL cone search around the celestial coordinates of the input object, which are provided by the Sesame name resolver. The accepted input formats are described in the pop-up window that appears when clicking on top of the "Name" tooltip (see Fig. The first step is to fill in the "Name" box with either the object identifier (e.g. It can be accomplished using the Basic > Position subtab. The most basic use case could be formulated as "I want the most relevant Gaia results for a single object". Through this tutorial you will learn to use the Basic tab to: Therefore, we recommend to use the Advanced (ADQL) tab to execute complex and/or long queries. Furthermore, the output of these queries is limited to 2000 sources. These operations are the ADQL cone search, which allows to search by coordinates for one or more sources in a given catalogue, and an ADQL query to retrieve all the sources encompassed by a circular or box-like region in the projected sky.Īll Basic queries are synchronous, which means that they will time out after 60 and 90 seconds for non-registered and registered users, respectively (see this FAQ).
To that end, the Basic tab allows to perform two of the most common operations executed when exploring an astronomy archive in a very simple and intuitive manner.
Video tutorial: How to use the simple form of the Archive The ADQL query that generated these results can be inspected by clicking on the 'Show query in ADQL form' link. The output of the queries are displayed in this window. All the public tables and the user-uploaded tables are visible in the left side of the web. The jobs executed by the user can be inspected in the list provided in this page. Each query generates a job at server side. This form allows to execute ADQL queries. The output fields can be selected by means of the 'Display columns' option panel. Restrictions can be added to the query using the 'Extra conditions' wizard. This form allows to easily search for data in all the catalogues hosted by the Archive.