Abstract
Mining large quantities of uncalibrated archives, for specific sources can prove to be a hard task. Even an automated search engine able to use an archive metadata (instrument, a filter, exposure time...) is not completely sufficient. Indeed, without calibration it is difficult to know whether an interesting source can be seen on images without actually looking. Here, we show how a reversed exposure time calculator can be used to efficiently process the database-stored image descriptors of the ESO Wide Field Imager (WFI) archive, and compute the corresponding limiting magnitudes. The end result is a more scientific description of the ESO ST-ECF archive contents, allowing a more astronomer-friendly archive user interface, and hence increasing the archive useability in the context of a Virtual Observatory. This method is developed for improving the Querator search engine of ESO HST archive, in the context of the EC funded ASTROVIRTEL project.
| Original language | English (Ireland) |
|---|---|
| Title of host publication | ASTRONOMICAL DATA ANALYSIS SOFTWARE AND SYSTEMS XIII |
| Publisher | ASTRONOMICAL SOC PACIFIC |
| Number of pages | 3 |
| Volume | 314 |
| Publication status | Published - 1 Jan 2004 |
Authors (Note for portal: view the doc link for the full list of authors)
- Authors
- Voisin, B;O Tuairisg, S;Butler, R;Golden, A;Shearer, A;Micol, A