An application of Galactic parallax: the distance to the tidal stream GD-1
An Arecibo Search for Pulsars and Transient Sources in M33
An axisymmetric hydrodynamical model for the torus wind in AGN. III: Spectra from 3D radiation transfer calculations
An empirical calibration of Lick indices using Milky Way Globular Clusters
An enduring puzzle: the width variations of the 2175 Angstrom extinction band
An Evolutionary Model for Collapsing Molecular Clouds and Their Star Formation Activity
An Excursion-Set Model for the Structure of GMCs and the ISM
An Expanding HI Photodissociated Region Associated with the Compact HII Region G213.880-11.837 in the GGD 14 Complex
An Extremely Carbon-rich, Extremely Metal-poor Star in the Segue 1 System
An extremely primitive halo star
An Extremely Top-Heavy IMF in the Galactic Center Stellar Disks
An HI column density threshold for cold gas formation in the Galaxy
An HST/ACS View of the Inhomogeneous Outer Halo of M31
An HST/NICMOS view of the prototypical giant HII region NGC604 in M33
An HST/WFPC Survey of Bright Young Clusters in M31. II. Photometry of Less Luminous Clusters in the Fields
An HST/WFPC2 Survey of Bright Young Clusters in M31 III. Structural Parameters
An HST/WFPC2 survey of bright young clusters in M31. IV. Ages and mass estimates
An Improved Black Hole Mass - Bulge Luminosity Relationship for AGNs
An improved map of the Galactic Faraday sky
An Improved Metallicity Calibration with UBV Photometry