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Chromospheric emission in late-type stars.
More than 800 southern stars within 50pc have been observed for chromospheric emission in the cores of the Ca II H and K lines. Most of the sample targets were selected to be G... -
Limb-darkening coefficients in binaries
We present monochromatic, passband-specific, and bolometric limb-darkening coefficients for a linear as well as nonlinear logarithmic and square root limb-darkening laws. These... -
Ca II triplet lines in cool stars
CCD spectra of the infrared triplet lines of ionized calcium at {lambda}{lambda}8498, 8542, 8662 have been obtained at a spectral resolution of 0.4{AA} in 146 stars brighter... -
B to G stars calibration in Geneva photometry
We have used recent Kurucz models and many standard stars to revise previous calibrations of the Geneva photometric parameters in terms of Teff, logg, and [M/H]. In addition,... -
Limb-darkening coefficients for R I J H K
We have computed limb-darkening coefficients for five commonly used near infrared photometric bands, namely R, I, J, H, and K, using the stellar atmosphere models by Kurucz... -
LTE model atmospheres coeff.
Linear, quadratic and square root limb-darkening coefficients have been computed by means of least squares fits to model atmospheres by Kurucz (1991) with the main purpose of... -
Heterochromatic Atmospheric Extinction
In synthetic versions of two broadband photometric systems, Johnson-Cousins and Washington, we find the dependence of atmospheric extinction corrections on colour and on macro... -
Heterochromatic extinction. I.
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M dwarfs model photospheres. II.
We present a table of new "classical" model photospheres for M dwarfs computed with an extensive set of atomic and molecular opacities treated with the accurate and realistic... -
Envelopes of oxygen-rich AGB stars
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Entropy-calibrated stellar modeling
Modeling the convection process is a long-standing problem in stellar physics. To date, all ad hoc models have relied on a free parameter, alpha, (among others) that has no real... -
(MgAl2O4)n and (CaAl2O4)n, n=1-7 clusters data
Spinel (MgAl_2_O_4_) and krotite (CaAl_2_O_4_) are alternative candidates to alumina (Al_2_O_3_) as primary dust condensates in the atmospheres of oxygen-rich evolved stars.... -
Effective collision strengths for Ni III
Recent JWST observations of the Type Ia supernova (SN Ia) 2021aefx in the nebular phase have paved the way for late-time studies covering the full optical to mid-infrared (MIR)... -
Power-2 limb-darkening coefficients
The phenomenon of limb-darkening is relevant to many topics in astrophysics, including the analysis of light curves of eclipsing binaries, optical interferometry, measurement of... -
51 Eri b SPHERE/IFS YH spectrum
51 Eridani b is one of the closest directly imaged exoplanets (~11au). We aim to better constrain its atmospheric properties by using a retrieval approach on higher... -
A standard grid of templates and masks
The atmospheres of ultra-hot Jupiters are highly interesting and unique chemical laboratories. Due to the very high atmospheric temperatures, their chemical composition is... -
Stellar Models and Limb Darkening
The detection of the first exoplanet paved the way for the era of transit-photometry space missions with revolutionary photometric precision, whose aim is to discover new... -
3D GCMs mini-chemical scheme with net reactions
Growing evidence has indicated that the global composition distribution plays an indisputable role in interpreting observational data. Three-dimensional general circulation... -
Power-2 limb-darkening coefficients
Limb darkening is an important stellar phenomenon, and must be accounted for in the study of stellar spectra, eclipsing binaries, transiting planetary systems, and microlensing... -
7 giants/subgiants limb-darkening coefficients
Large spectroscopic surveys of the Milky Way need to be calibrated against a sample of benchmark stars to ensure the reliable determination of atmospheric parameters. Here we...
