32 citations · 59 across the 4 of their papers we have counts for
5 papers · 1 filter
Chromospheric condensations and magnetic field in a C3.6-class flare studied via He I D3 spectro-polarimetry
Tine Libbrecht, Jaime de la Cruz Rodriguez, Sanja Danilovic +2
Context. Magnetic reconnection during flares takes place in the corona but a substantial part of flare energy is deposited in the chromosphere. However, high-resolution spectro-pol…
Spatially resolved spectroscopy across stellar surfaces. II. High-resolution spectra across HD209458 (G0V)
Dainis Dravins, Hans-Günter Ludwig, Erik Dahlén +1
CONTEXT: High-resolution spectroscopy across spatially resolved stellar surfaces aims at obtaining spectral-line profiles that are free from rotational broadening; the gradual chan…
Spatially resolved spectroscopy across stellar surfaces. I. Using exoplanet transits to analyze 3-D stellar atmospheres
Dainis Dravins, Hans-Günter Ludwig, Erik Dahlén +1
CONTEXT: High-precision stellar analyses require hydrodynamic modeling to interpret chemical abundances or oscillation modes. Exoplanet atmosphere studies require stellar backgroun…
Solar off-limb emission of the OI 7772 Å line
Hiva Pazira, D. Kiselman, J. Leenaarts
The aim of this paper is to understand the formation of the OI line at 7772 Å in the solar chromosphere. We used SST/CRISP observations to observe OI 7772 Å in several places aroun…
Exoplanet transits enable high-resolution spectroscopy across spatially resolved stellar surfaces
Dainis Dravins, Hans-Günter Ludwig, Erik Dahlén +1
Observations of stellar surfaces - except for the Sun - are hampered by their tiny angular extent, while observed spectral lines are smeared by averaging over the stellar surface,…