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 cosmic density field inference from redshift space dark matter maps
We present a self-consistent Bayesian formalism to sample the primordial density fields compatible with a set of dark matter density tracers after a cosmic...
Bent by baryons: the low-mass galaxy-halo relation
The relation between galaxies and dark matter haloes is of vital importance for evaluating theoretical predictions of structure formation and galaxy formation...
Beyond 31 mag arcsec‑2: The Frontier of Low Surface Brightness Imaging with the Largest Optical Telescopes
The detection of structures in the sky with optical surface brightnesses fainter than 30 mag arcsec‑2 (3σ in 10 × 10 arcsec boxes; r-band) has remained elusive...
Beyond the Hubble Deep Field Limiting Magnitude: Faint Galaxy Number Counts from Surface Brightness Fluctuations
The faint end of the differential galaxy number counts n(m) in the Hubble Deep Field-North (HDF-N) has been determined for the F450W, F606W, and F814W filters...
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...
Biases in galaxy cluster velocity dispersion and mass estimates in the small N<SUB>gal</SUB> regime
Aims: We present a study of the statistical properties of three velocity dispersion and mass estimators: biweight, gapper, and standard deviation for a small...
Biconical Radiation Field and Outflow in NGC 1068: Location of the Hidden Nucleus
Bidimensional spectroscopy of the circumnuclear region (central 10" x 8") of the Seyfert 2 galaxy NGC 1068 has been performed by means of an optical fiber...
Bidimensional Spectroscopic Mapping and Chemical Abundances of the Star-forming Dwarf Galaxy I ZW 18
We present bidimensional, long-slit spectroscopic mapping of the prototypical low-metallicity dwarf galaxy I Zw 18. A total of eight spaced slit positions were...