5 papers
Theoretical expectations for magnetic field measurements in molecular cloud cores
F. Heitsch, P. S. Li
The currently most viable methods to estimate magnetic field strengths in molecular cloud cores are Zeeman measurements and the Chandrasekhar-Fermi (CF) method. The CF-method estim…
Double Bars, Inner Disks, and Nuclear Rings in Barred Galaxies
Peter Erwin, Linda S. Sparke, Juan Carlos Vega Beltran +1
We present results of a high-resolution imaging survey of barred S0--Sa galaxies which demonstrate that the central regions of these galaxies are surprisingly complex. We see many…
Multi-wavelength observations of serendipitous Chandra sources
P. Gandhi, C. S. Crawford, A. C. Fabian +4
We describe progress in a programme to study a sample of sources typical of those which contribute a large fraction of the hard X-ray background. The sources are selected from the…
Observational evidence for the accretion of low-metallicity gas onto the Milky Way; metallicity, physical conditions and distance limit for HVC complex C
B. P. Wakker, J. C. Howk, B. D. Savage +5
We present observations of the (field of the) Seyfert galaxy Mark290, which probes the high-velocity cloud (HVC) complex C, one of the largest HVCs. We find that this object has a…
The HI fine structure of HVC187 near NGC3783, gas in the leading bridge of the Magellanic System
B. P. Wakker, B. D. Savage, T. A. Oosterloo +1
We present an analysis of high-resolution HI data of one of the cores of HVC187 Wakker & van Woerden 1991), HVC287+22+240. Structure is present down to the lowest-measurable scale…