5 papers
From Detailed Galaxy Simulations to a Realistic End-of-Mission Gaia Catalogue
Anthony Brown, Hector Velazquez, Luis Aguilar
We address the problem of identifying remnants of satellite galaxies in the halo of our galaxy with Gaia data. We make use of N-body simulations of dwarf galaxies being disrupted i…
A search for close companions in Sco OB2
Thijs Kouwenhoven, Anthony Brown, Hans Zinnecker +3
Using adaptive optics we study the binary population in the nearby OB association Scorpius OB2. We present the first results of our near-infrared adaptive optics survey among 199 (…
Evolution from OB Associations and Moving Groups to the Field Population
Anthony G. A. Brown
If we want to understand the evolution from star clusters to the Galactic field star population, the Solar neighbourhood is an ideal place to start. It contains objects from dense,…
OB Associations, Open Clusters, and the Luminosity Calibration of the Nearer Stars
Anthony Brown
In the context of the luminosity calibration of the nearer stars I discuss the Hipparcos results on distances to nearby OB associations and open clusters. The shortcomings and assu…
The Large-Scale Distribution and Motions of Older Stars in Orion
Anthony G. A. Brown, Fredrick M. Walter, Adriaan Blaauw
We review the current knowledge of the population of `older' stars in the Orion OB1 association, specifically those in subgroups 1a and 1b. We briefly outline the history of the su…