227 citations · 650 across the 23 of their papers we have counts for
4 papers · 1 filter
Differential image motion in astrometric observations with very large seeing-limited telescopes
P. F. Lazorenko, J. Sahlmann, M. Mayor +1
We investigate how to quantitatively model the observed differential image motion (DIM) in relative astrometric observations. As a test bed we used differential astrometric observa…
Discovery of a dormant 33 solar-mass black hole in pre-release Gaia astrometry
Gaia Collaboration, P. Panuzzo, T. Mazeh +412
Gravitational waves from black-hole merging events have revealed a population of extra-galactic BHs residing in short-period binaries with masses that are higher than expected base…
Machine learning-based identification of Gaia astrometric exoplanet orbits
Johannes Sahlmann, Pablo Gómez
The third Gaia data release (DR3) contains 170\,000 astrometric orbit solutions of two-body systems located within 500 pc of the Sun. Determining component masses in th…
3C 273 Host Galaxy with Hubble Space Telescope Coronagraphy
Bin B. Ren, Kevin Fogarty, John H. Debes +6
The close-in regions of bright quasars' host galaxies have been difficult to image due to the overwhelming light from the quasars. With coronagraphic observations in visible light…