Review advocating solar observations as benchmarks for stellar activity and space weather, with SKA enabling detailed coronal studies and stellar detections.
Search for Associations Containing Young stars (SACY): I. Sample & Searching Method
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abstract
We report results from a high-resolution optical spectroscopic survey aimed to search for nearby young associations and young stars among optical counterparts of ROSAT All-Sky Survey X-ray sources in the Southern Hemisphere. We selected 1953 late-type (B-V >= 0.6), potentially young, optical counterparts out of a total of 9574 1RXS sources for follow-up observations. At least one high-resolution spectrum was obtained for each of 1511 targets. This paper is the first in a series presenting the results of the SACY survey. Here we describe our sample and our observations. We describe a convergence method in the (UVW) velocity space to find associations. As an example, we discuss the validity of this method in the framework of the BetaPic Association.
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astro-ph.SR 1years
2026 1verdicts
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Exploring Activity Across the Stellar Main Sequence with the Sun as a Benchmark
Review advocating solar observations as benchmarks for stellar activity and space weather, with SKA enabling detailed coronal studies and stellar detections.