Poster Abstract

P.7 Fabrizio Lucarelli (ASI-SSDC and INAF-OAR )

The AGILE gamma-ray legacy archive and the "user-friendly" AGILE-LV3 web tool integrated in the ASI-SSDC MWL environment.

The AGILE gamma-ray space mission is dedicated to the observation of astrophysical sources of
photons with energy E > 30 MeV.

The scientific analysis of the AGILE Gamma Ray Imaging Detector (GRID) data, using the official software tools, is based on the creation of scientific maps (counts, exposure and gamma-ray diffuse background maps in FITS format) and then on the application of Maximum Likelihood algorithms for the detection of sources and extraction of high-level data products (source fluxes, spectra, light curves, …).

The analysis of the AGILE data might be very time-consuming (starting from the installation of the official analysis s/w to the download of the photon event list and the very large spacecraft data) and can take a very long time for deep analyses that cover all or a large part of the public AGILE data archive. In order to speed up this process, a high-level archive of AGILE scientific maps, covering each one a 1-day of observations, was created. These 1-day integration maps are then summed together to cover pre-selected integration time intervals (2-, 4-, 7- and 28-days), and archived together with the corresponding diffuse gamma-ray background maps. This archive, called the AGILE Level 3 (LV3) archive, can be used as seed for "user-friendly" GRID scientific analyses of steady and transient gamma-ray sources.

Based on the AGILE LV3 scientific data archive, an interactive AGILE analysis web tool (AGILE-LV3 tool) has been developed at the AGILE Data Center (within the SSDC) to perform scientific analyses on different time scales in a very reduced amount of time. The tool allows to quickly extract flux and light curves of a source of interest on a specific time interval without the need to locally install any dedicated analysis software.

The online AGILE-LV3 tool is fully integrated in the SSDC multi-wavelength web services, which include:
cross-search multi-mission catalogs and data archives; high-level data product services, like the broadband spectral energy distribution (SED) builder and the SSDC Sky Explorer.

In what follows, we will present the AGILE web tool based on the LV3 archive and its scientific potentiality within the SSDC MWL environment.