sourcescosmic

sourcescosmic is a community-driven open-source project that aggregates, cross-matches, and serves astronomical source catalogs from multiple wavelengths. It aims to simplify multi-survey research by providing a unified schema, programmatic access, and tools for quality assessment and visualization. The project emphasizes interoperability with established astronomical standards and services.

Core functionality includes ingestion of heterogeneous catalogs, positional and probabilistic cross-matching, metadata harmonization, and an API for query and retrieval. Optional components often provided by the project ecosystem include web-based viewers, batch export, and connectors for analysis tools. Sources are typically annotated with provenance, measurement uncertainties, and links to original survey entries to support reproducibility.

The project is maintained by a distributed community of astronomers, software developers, and data managers. Contributions commonly take the form of new data adapters, cross-match algorithms, documentation, and validation scripts. Licensing is generally permissive to encourage reuse in research and education.

Uses for sourcescosmic span scientific research, survey planning, teaching, and citizen science. Users are advised to consider catalog-specific systematics, selection effects, and positional uncertainties when interpreting combined datasets. Ongoing development priorities often include expanding catalog coverage, improving cross-match accuracy, and enhancing compliance with virtual observatory protocols.