Active Galactic Nuclei Selected from GALEX Spectroscopy: The Ionizing Source Spectrum at z~1

Active Galactic Nuclei Shed Light on Axion-like-Particles

Active Galactic Nuclei with Double-peaked Narrow Lines: Are They Dual AGNs?

Active galactic nucleus feedback in clusters of galaxies

Active Galactic Nucleus Pairs from the Sloan Digital Sky Survey. I. The Frequency on ~ 5-100 kpc Scales

Active Galactic Nucleus Pairs from the Sloan Digital Sky Survey. II. Evidence for Tidally Enhanced Star Formation and Black Hole Accretion

Active Galaxies and the Study of Black Hole Demographics

Active Galaxies in the Sloan Digital Sky Survey I: The Spectroscopically Unremarkable Population of the Local Universe

Active Galaxies in the Sloan Digital Sky Survey II: galaxy and activity evolution

Activity in galactic nuclei of cluster and field galaxies in the local universe

Adaptive gravitational softening in GADGET

Adaptive Mesh Fluid Simulations on GPU

Adaptive Optics Imaging of a Massive Galaxy Associated with a Metal-rich Absorber

Adaptive Optics Imaging of QSOs with Double-Peaked Narrow Lines: Are they Dual AGNs?

Adaptive optics near infrared integral field spectroscopy of NGC 2992

Adaptive Optics Observations of B0128+437: A Low-Mass, High-Redshift Gravitational Lens

Adaptively refined large eddy simulations of clusters

Adiabatic initial conditions for perturbations in interacting dark energy models

Adiabatic versus Isocurvature Non--Gaussianity

Adiabaticity and the Fate of Non-Gaussianities: The Trispectrum and Beyond