Standard candles from the Gaia perspective
Laurent Eyer, Lovro Palaversa, Nami Mowlavi, Pierre Dubath, Richard I., Anderson, Dafydd W. Evans, Thomas Lebzelter, Vincenzo Ripepi, Laszlo, Szabados, Silvio Leccia, Gisella Clementini
TL;DR
The Gaia mission will revolutionize the study of standard candles by providing highly precise, comprehensive data on variable stars, enabling improved distance measurements and stellar understanding.
Contribution
This paper reviews Gaia's expected contributions to standard candle research, focusing on Cepheids, RR Lyrae, Long Period Variables, and eclipsing binaries.
Findings
Enhanced astrometric precision improves distance estimates.
Comprehensive sky coverage enables large-scale standard candle analysis.
Detailed classification of variable stars aids in refining cosmic distance scales.
Abstract
The ESA Gaia mission will bring a new era to the domain of standard candles. Progresses in this domain will be achieved thanks to unprecedented astrometric precision, whole-sky coverage and the combination of photometric, spectrophotometric and spectroscopic measurements. The fundamental outcome of the mission will be the Gaia catalogue produced by the Gaia Data Analysis and Processing Consortium (DPAC), which will contain a variable source classification and specific properties for stars of specific variability types. We review what will be produced for Cepheids, RR Lyrae, Long Period Variable stars and eclipsing binaries.
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