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The Gaia spectrophotometric standard stars survey: II. Instrumental effects of six ground-based observing campaigns

Jordi, C.; Figueras, F.; Marinoni, S. +16 more

The Gaia SpectroPhotometric Standard Stars (SPSS) survey started in 2006, was awarded almost 450 observing nights and accumulated almost 100 000 raw data frames with both photometric and spectroscopic observations. Such large observational effort requires careful, homogeneous, and automatic data reduction and quality control procedures. In this pa…

Geometric characterization of the Arjuna orbital domain

de la Fuente Marcos, R.; de la Fuente Marcos, C.

Arjuna-type orbits are characterized by being Earth-like, having both low-eccentricity and low-inclination. Objects following these trajectories experience repeated trappings in the 1:1 commensurability with the Earth and can become temporary Trojans, horseshoe librators, quasi-satellites, and even transient natural satellites. Here, we review wha…