1.4 Epoch radial velocities for long-period variables

Author(s): M. Trabucchi, N. Mowlavi, T. Lebzelter, I. Lecœur-Taïbi

This FPR features the time series of radial velocity measurements for 9614 long-period variables. The time baseline for these time series is the same as for Gaia DR3. The frequencies and associated uncertainties of all the radial velocity times series, as well as their amplitudes, are published together with their time series statistics.

All sources published in the FPR have their radial velocity frequency compatible with the frequency of at least one of the three photometric time series ($G$, $G_{\mathrm{BP}}$ or $G_{\mathrm{RP}}$). Sources where all four frequencies are compatible with each other are further flagged, indicating the highest level of confidence in the derived frequency.

We also re-publish the frequencies, associated uncertainties, and the amplitudes of the $G$-band time series for the FPR sample. These values might slightly differ from those published in Gaia DR3 due to a Java-programming language bug in the Java version used for Gaia DR3 (which has since been fixed in the most recent Java versions) that slightly affected some results of long-period variable processing.

For more details, we refer to Gaia Collaboration, Trabucchi, M., et al. (2023d), where the data processing, data model, and catalogue content for this FPR are described.