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Gaia Data Release 3: The Galaxy in your preferred colours. Synthetic photometry from Gaia low-resolution spectra
Gaia Collaboration, P. Montegriffo, M. Bellazzini +27
Gaia Data Release 3 provides novel flux-calibrated low-resolution spectrophotometry for about 220 million sources in the wavelength range 330nm - 1050nm (XP spectra). Synthetic pho…
Gaia Data Release 3: Microlensing Events from All Over the Sky
Łukasz Wyrzykowski, K. Kruszyńska, K. A. Rybicki +12
Context: One of the rarest types of variability is the phenomenon of gravitational microlensing, a transient brightening of a background star due to an intervening lensing object.…
Vetting Galactic Leavitt Law Calibrators using Radial Velocities: On the Variability, Binarity, and Possible Parallax Error of 19 Long-period Cepheids
R. I. Anderson, S. Casertano, A. G. Riess +9
We investigate the radial velocity (RV) variability and spectroscopic binarity of 19 Galactic long-period ( d) classical Cepheid variable stars whose trig…