Bayesian bulge-disc decomposition of galaxy images
We introduce PHI, a fully Bayesian Markov chain Monte Carlo algorithm designed for the structural decomposition of galaxy images. PHI uses a triple layer...
Bayesian Inference of Solar and Stellar Magnetic Fields in the Weak-field Approximation
The weak-field approximation is one of the simplest models that allows us to relate the observed polarization induced by the Zeeman effect with the magnetic...
Benchmark stars, benchmark spectrographs. Detailed spectroscopic comparison of ESPRESSO, PEPSI, and HARPS data for Gaia benchmark stars
Context. Gaia benchmark stars are selected to be calibration stars for different spectroscopic surveys. Very high-quality and homogeneous spectroscopic data for...
Benchmark tests of transmission spectroscopy using transiting white dwarfs
Context. Ground-based transit observations are affected by both telluric absorption and instrumental systematics, which can affect the final retrieved...
Beyond the hubble sequence - exploring galaxy morphology with unsupervised machine learning
We explore unsupervised machine learning for galaxy morphology analyses using a combination of feature extraction with a vector-quantized variational...
Binarity and multiperiodicity in high-amplitude δ Scuti stars
We have carried out a photometric and spectroscopic survey of bright high-amplitude δ Scuti (HADS) stars. The aim was to detect binarity and multiperiodicity...
Binary Companions of Evolved Stars in APOGEE DR14: Search Method and Catalog of ∼5000 Companions
Multi-epoch radial velocity measurements of stars can be used to identify stellar, substellar, and planetary-mass companions. Even a small number of observation...
Binary frequency of planet-host stars at wide separations. A new brown dwarf companion to a planet-host star
Aims: The aim of the project is to improve our knowledge on the multiplicity of planet-host stars at wide physical separations. Methods: We cross-matched...
Black Mirror: The impact of rotational broadening on the search for reflected light from 51 Pegasi b with high resolution spectroscopy
Context. The extreme contrast ratios between stars and their planets at optical wavelengths make it challenging to isolate the light reflected by exoplanet...