Chapter 1 Introduction to the Gaia Focused Product Release

Author(s): A.G.A. Brown, K. Janßen, A. Krone-Martins, M. Schultheis, P. Tanga, M. Trabucchi, J. Castañeda, M. Davidson, C. Ducourant, L. Galluccio, Z. Kostrzewa-Rutkowska, T. Lebzelter, I. Lecœur-Taïbi, A. Mints, N. Mowlavi

The Gaia focused product release presents the following five data products:

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  Astrometry and photometry from engineering images taken in the core of the $\omega$ Cen globular cluster.

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  Updated astrometry for Solar System objects.

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  The first results of the search for lensed quasars.

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  Radial velocity time series for long-period variables.

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  Diffuse interstellar bands from aggregated RVS spectra.

Each of these data products is briefly introduced in the following sections. More details can be found in the papers referred to below. Table 1 provides a list of all focused product release tables in the Gaia archive.