Science platform developments for space astronomy will be reviewed as a collaboration of initiatives in the context of the focus week. A broad overview that touches on some of the later contributions will be given, and the schedule will be summarised emphasising the opportunities to engage with developers in surgery sessions on the third day, and in the stand-up "bring and share" session on...
Interactive exploration of Gaia’s two billion row tables requires specialised visual analytics pipelines that precompute multiresolution representations and provide low-latency access on standard user hardware. Building on the Gaia Archive Visualisation Service (GAVS), we have extended this framework within SPACIOUS through a fully containerised, cloud-deployable architecture and a redesigned...
I will describe our current plans for a Gaia Science Exploitation Platform, at least from the conceptual design, type of user profiles that we expect, usage scenarios and main science and technical requirements, relying in principle on the functionalities (to be) provided by the ESA DataLabs framework complemented potentially with external cloud resources.
I will present the GaiaUnlimited project which ran between 2021 and 2024 and was aimed at determining the Gaia survey selection function and providing corresponding data and tools. The complications in determining the Gaia selection function will be summarized and the way this was handled will be reviewed. I will also provide an overview of the various tools developed within this project and...
Mira variables have been shown to follow period-age relations and are useful in studying the evolution of the Milky Way. Gaia is a unique facility in its capabilities and contributions to broad areas of Milky Way science. I will present our work on characterising long-period variables in the Gaia archive, the challenges of heteroscedastic observations and how the Gaia UK Data Mining Platform...
In the past decade, Gaia has doubled the known population of Milky Way star clusters. With more than 1.5 billion stars expected to receive astrometric solutions in Gaia DR4, in addition to epoch photometry and astrometry, platforms like SPACIOUS will be essential for analyzing these increasingly large datasets. In this talk, I will provide an overview of the clustering algorithms widely used...
We present an application of the SPACIOUS platform (https://spacious.ub.edu) to run the Besançon Galaxy Model Fast Approximate Simulations, a tool aimed at deriving Galactic parameters by comparing observed and simulated catalogs. SPACIOUS allows us to work efficiently with both large observational datasets and our own simulated catalogs. In particular, we can retrieve and handle a Gaia sample...
The Gaia mission has revolutionized our knowledge in many fields of Astronomy. Since the beginning, Gaia and the Virtual Observatory have demonstrated to be a pairing of great value. Our group has extensively exploited this pairing for the study of white dwarf stellar evolution. Here, I will review the studies we have done so far and the main results obtained.
Data from the Gaia mission shows prominent phase-space spirals that are the signatures of disequilibrium in the Milky Way (MW) disc. In this work, we present a novel perspective on the phase-space spiral in angular momentum (AM) space. Using Gaia DR3, we detect a prominent AM spiral in the solar neighbourhood. We demonstrate that the spiral detected in the z − v z phase-space projection can be...
A summary of the week and a chance for an open discussion as to science platform design and future requirements
