The field of Galactic archaeology has been very active in recent years, with a major influx of data from the Gaia satellite and large spectroscopic surveys. The...
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CharlaIAU G5 -- The GALAH survey: science goals and highlights to date
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CharlaIAU G5 talk: A massive catalogue of ultracool dwarfs identified with LAMOST DR7
We present a sample of 734 ultracool dwarfs using LAMOST DR7 spectra, i.e., those having a spectral type of or later than M6, including an L0. All of these red...
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CharlaIAU G5 talk: Accelerating Computational Modeling via Neural Networks: Application to Exoplanet Atmospheric Retrieval/The first magnetic Helium-sdOs: which mergers are magnetic?
Accelerating Computational Modeling via Neural Networks: Application to Exoplanet Atmospheric Retrieval I In physics and astronomy, computationally expensive...
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CharlaIAU G5 talk: Inelastic hydrogen collisions in stellar atmospheres
Accurate non-LTE modelling of stellar spectra, and thus the derivation of accurate stellar properties such as chemical composition, temperature, and surface...
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CharlaIAU G5 Talk: Winds of Magnetic Massive Stars
Massive stars (at least eight times as massive as the Sun) possess strong stellar winds driven by radiation. With the advent of the so called MiMeS...
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CharlaIAU G5: "Extreme Precision Stellar Spectroscopy"
The new generation of spectrometers designed for extreme precision radial velocities enable correspondingly precise stellar spectroscopy. It is now fruitful to...
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CharlaIAU G5: Exo-space weather: The impact of stellar activity and outflows on the escaping atmospheres of exoplanets
Activity of cool dwarf stars can reveal itself in the form of high-energy radiation (eg, enhanced X-ray coronal emission, flares) and particles (eg, winds...
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CharlaIAU G5: High-precision solar spectroscopy with the Göttingen FTS
The Institute for Astrophysics and Geophysics (IAG) in Göttingen operates a Fourier-Transform Spectrograph (FTS) that can be fed by either a 50cm siderostat or...
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CharlaImage deconvolution (part 1/5)