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α Centauri A in the far infrared*: First measurement of the temperature minimum of a star other than the Sun
(Astronomy & Astrophysics, 2013)
SUB-THz AND H alpha ACTIVITY DURING THE PREFLARE AND MAIN PHASES OF A GOES CLASS M2 EVENT
(Iop Publishing LtdBristolInglaterra, 2011)
ζ1 + ζ2 Reticuli binary system: a puzzling chromospheric activity pattern
(Wiley Blackwell Publishing, Inc, 2018-05)
We perform, for the first time, a detailed long-term activity study of the binary system ζ Ret. We use all available HARPS spectra obtained between the years 2003 and 2016. We build a time series of the Mount Wilson S index ...
Magnetic Activity Cycles in the Exoplanet Host Star ǫ Eridani
(IOP Publishing, 2013-02-01)
The active K2 dwarf ǫ Eri has been extensively characterized, both as a young solar analog and more recently as an exoplanet host star. As one of the nearest and brightest stars in the sky, it provides an unparalleled ...
The MUSCLES Treasury Survey. IV. Scaling Relations for Ultraviolet, Ca II K, and Energetic Particle Fluxes from M Dwarfs
(IOP Publishing, 2017-07)
Characterizing the UV spectral energy distribution (SED) of an exoplanet host star is critically important for assessing its planet´s potential habitability, particularly for M dwarfs, as they are prime targets for current ...
The effect of ISM absorption on stellar activity measurements and its relevance for exoplanet studies
(EDP Sciences, 2017-05)
Past ultraviolet and optical observations of stars hosting close-in Jupiter-mass planets have shown that some of these stars present an anomalously low chromospheric activity, significantly below the basal level. For the ...
HATS: A Ground-Based Telescope to Explore the THz Domain
(Springer, 2020-04)
The almost unexplored frequency window from submillimeter to mid-infrared (mid-IR) may bring new clues about the particle acceleration and transport processes and the atmospheric thermal response during solar flares. Because ...
HD 38858: A solar-Type star with an activity cycle of ∼10.8 yr: Searching for variations in the Balmer and metallic lines
(EDP Sciences, 2018-12)
Context. The detection of chromospheric activity cycles in solar-Analogue and twin stars can be used to place the solar cycle in a wider context. However, relatively few of these stars with activity cycles have been detected. ...
SURFACE ALFVEN WAVE DAMPING IN A THREE-DIMENSIONAL SIMULATION OF THE SOLAR WIND
(IOP PUBLISHING LTD, 2009)
Here we investigate the contribution of surface Alfven wave damping to the heating of the solar wind in minima conditions. These waves are present in the regions of strong inhomogeneities in density or magnetic field (e.g., ...