We present Far Ultraviolet Spectroscopic Explorer (FUSE) observations of the post–asymptotic giant branch star von Zeipel 1128 (l 1⁄4 42=5, b 1⁄4 þ78=7; d 1⁄4 10:2 kpc; z 1⁄4 10:0 kpc; vLSR 1⁄4 140 8 km s 1), located in the globular cluster Messier 3. The FUSE observations cover the wavelength range 905–1187 Å at 20 km s 1 (FWHM) resolution. These data exhibit many photospheric and interstellar...

We present Wisconsin Hα Mapper observations of ionized gas in the Smith Cloud, a high velocity cloud which Lockman et al. have recently suggested is interacting with the Galactic disk. Our Hα map shows the brightest Hα emission, 0.43± 0.04 R, coincident with the brightest H I, while slightly fainter Hα emission (0.25 ± 0.02 R) is observed in a region with H I intensities < 0.1 times as bright a...

We report on the use of a novel technique to measure the gas density from a pulsed gas jet. Deuterium gas is fully ionized with an intense picosecond laser, and the resulting electron density is measured by interferometric probing with a second picosecond pulse. We have applied this technique to characterize a cryogenically cooled, high-density gas jet.

We present Far Ultraviolet Spectroscopic Explorer (FUSE) observations of the post-asymptotic giant branch star von Zeipel 1128 (l = 42. 5, b = +78. 7; d = 10.2 kpc, z = 10.0 kpc; vLSR = −140± 8 km s), located in the globular cluster Messier 3. The FUSE observations cover the wavelength range 905 – 1187 Å at ∼ 20 km s (FWHM) resolution. These data exhibit many photospheric and interstellar absor...

Early results are reported from the SAURON survey of the kinematics and stellar populations of nearby cluster and field E, S0, and Sa galaxies. We present maps of the Hβ and [OIII] emission-line distribution and kinematics for NGC 5813 and NGC 7742.

The Galactic Center lobe is a degree-tall shell seen in radio continuum images of the Galactic center (GC) region. If it is actually located in the GC region, formation models would require massive energy input (e.g., starburst or jet) to create it. At present, observations have not strongly constrained the location or physical conditions of the GC lobe. This paper describes the analysis of new...

We have taken K-band spectra covering 7 cooling flow clusters. The spectra show many of the 1-0S transitions of molecular Hydrogen, as well as some of the higher vibrational transitions, and some lines of ionized Hydrogen. The line ratios allow us to conclude that the rotational states of the first excited vibrational state are in approximate LTE, so that densities above 10 cm are likely, but t...