APEX CO (9-8) Mapping of an Extremely High-Velocity and Jet-like Outflow in a High-Mass Star-Forming Region

APEX telescope observations of new molecular ions

Apparent Faster-Than-Light Pulse Propagation in Interstellar Space: A new probe of the Interstellar Medium

Application of three body stability to globular clusters I: the tidal radius

Application of three body stability to globular clusters II: observed velocity dispersions

Approximations for modelling CO chemistry in GMCs: a comparison of approaches

Apsidal advance in SS 433?

ARCADE 2 Observations of Galactic Radio Emission

Are external perturbations responsible for chaotic motion in galaxies?

Are galactic coronae thermally unstable?

Are Most Low-Luminosity AGN Really Obscured?

Are planetary nebulae derived from multiple evolutionary scenarios?

Are stellar over-densities in dwarf galaxies the "smoking gun" of triaxial dark matter haloes?

Are the Ultra-Faint Dwarf Galaxies Just Cusps?

Are There Phases in the ISM?

Arecibo Multi-Epoch HI Absorption Measurements Against Pulsars: Tiny-Scale Atomic Structure

Arecibo PALFA Survey and Einstein@Home: Binary Pulsar Discovery by Volunteer Computing

ASKAP and MeerKAT surveys of the Magellanic Clouds

Assessing the Milky Way Satellites Associated with the Sagittarius Dwarf Spheroidal Galaxy

Assessment of Stellar Stratification in Three Young Star Clusters in the Large Magellanic Cloud