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Gas kinematics from spectroscopy with a wide slit: detecting nuclear black holes
Witold Maciejewski, James Binney
Motivated by STIS observations of more than 50 nearby galactic nuclei, we consider long-slit emission-line spectra when the slit is wider than the instrumental PSF, and the target…
Kinematics from spectroscopy with a wide slit: detecting black holes in galaxy centres
Witold Maciejewski, James Binney
We consider long-slit emission-line spectra of galactic nuclei when the slit is wider than the instrumental PSF, and the target has large velocity gradients. The finite width of th…
Secular Evolution of the Galactic Disk
James Binney
In the solar-neighbourhood, older stars have larger random velocities than younger ones. It is argued that the increase in velocity dispersion with time is predominantly a gradual…
Supernovae and the IGM
James Binney
An energetic argument implies that a galaxy like the Milky Way is blowing a powerful wind that carries away most of the heavy elements currently synthesized and has impacted the IG…
Dynamics of the Galaxy's Satellites
James Binney
The Milky Way's satellites provide unique information about the density of the Galactic halo at large radii. The inclusion of even a few rather inaccurate proper motions resolves a…
Microlensing and Galactic Structure
James Binney
Because we know little about the Galactic force-field away from the plane, the Galactic mass distribution is very ill-determined. I show that a microlensing survey of galaxies clos…
Is Galactic Structure Compatible with Microlensing Data?
James Binney, Nicolai Bissantz, Ortwin Gerhard
We generalize to elliptical models the argument of Kuijken (1997), which connects the microlensing optical depth towards the Galactic bulge to the Galactic rotation curve. When app…
Accretion by Galaxies
J. J. Binney
Both theory and observation indicate that galaxies like the Milky Way accrete matter at the rate of a few Msun per year.
The Age of the Solar Neighbourhood
James Binney, Walter Dehnen, Gianpaolo Bertelli
High-quality Hipparcos data for a complete sample of nearly 12000 main-sequence and subgiant stars, together with Padua isochrones, are used to constrain the star-formation history…
Disk heating and stellar migration in galaxies
J. J. Binney, J. A. Sellwood
The paper claimed that significant radial migration of stars in a stellar disk like that of the Milky Way could not occur. We now think that while the treatment of the effects of m…