Context. The Hayabusa2 spacecraft launched by Japan Aerospace Exploration Agency has been conducting observations of the asteroid (162173) Ryugu since June 2018...
Global properties of the population of HII regions in NGC 7479 from photometric Hα imaging
We present a new high quality continuum-subtracted Hα image of NGC 7479. Using a novel semi-automated technique we have determined the positions, angular sizes...
Global solar Doppler velocity determination with the GOLF/SoHO instrument
The Global Oscillation at Low Frequencies (GOLF) experiment is a resonant scattering spectrophotometer on board the Solar and Heliospheric Observatory (SoHO)...
Globally Integrated Measurements of the Earth's Visible Spectral Albedo
We report spectroscopic observations of the earthshine reflected from the Moon. By applying our well-developed photometry methodology to spectroscopy, we are...
Globular Cluster and Galaxy Formation: M31, the Milky Way, and Implications for Globular Cluster Systems of Spiral Galaxies
We find that the globular cluster (GC) systems of the Milky Way and of our neighboring spiral galaxy, M31, comprise two distinct entities, differing in three...
Globular cluster ejection, infall, and the host dark matter halo of the Pegasus dwarf galaxy
Recent photometric observations revealed a massive, extended (M GC ≳ 10 5 M ☉; R h ̃ 14 pc) globular cluster (GC) in the central region (D 3D ≲ 100 pc) of the...
Globular cluster formation from gravitational tidal effects of merging and interacting galaxies
We investigate the spatial, kinematic and chemical properties of globular cluster systems formed in merging and interacting galaxies using N-body-smoothed...
Globular Cluster Metallicity Subpopulations in NGC 4472
Bimodality is a common feature of globular cluster (GC) color distributions in galaxies. Although it is well known that the GC system of the Milky Way is...
Globular Cluster Populations: First Results from S4G Early-type Galaxies
Using 3.6 μm images of 97 early-type galaxies, we develop and verify methodology to measure globular cluster populations from the S4G survey images. We find...