Stellar surface information from the Ca II H&K lines - II. Defining better activity proxies
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DOI: 10.1093/mnras/stae2508
Abstract: In our former paper I, we showed on the Sun that different active regions possess unique intensity profiles on the Ca II H & K lines. We now extend the analysis by showing how those… read more here.
Keywords: activity proxies; component; surface information; stellar surface ... See more keywords
Optical transient from an explosion close to the stellar surface
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DOI: 10.1093/mnras/stz2590
Abstract: We study the hydrodynamic evolution of an explosion close to the stellar surface, and give predictions for the radiation from such an event. We show that such an event will give rise to a multiwavelength… read more here.
Keywords: close stellar; transient; explosion close; stellar surface ... See more keywords