Accelerating the Rate of Astronomical Discovery with GPU-Powered Clusters

ACCESS: Enabling an Improved Flux Scale for Astrophysics

Accounting for Calibration Uncertainties in X-ray Analysis: Effective Areas in Spectral Fitting

Accuracy of spectroscopy-based radioactive dating of stars

Accurate Galactic 21-cm H I measurements with the NRAO Green Bank Telescope

Accurate Group Delay Measurement for Radial Velocity Instruments Using the Dispersed Fixed Delay Interferometer Method

Accurate photometry with adaptive optics in the presence of anisoplanatic effects with a sparsely sampled PSF

Achieving better than 1 minute accuracy in the Heliocentric and Barycentric Julian Dates

Achieving sub-electron readout noise in Skipper CCDs

Achromatizing a liquid-crystal spectropolarimeter: Retardance vs Stokes-based calibration of HiVIS

Acoustic detection of astrophysical neutrinos in South Pole ice

Acoustic detection of high energy neutrinos in ice: Status and results from the South Pole Acoustic Test Setup

Acoustic detection of ultra-high energetic neutrinos - a snap shot

Acoustic particle detection - from early ideas to future benefits

Acoustic sensor development for ultra high energy neutrino detection

Acoustic transient event reconstruction and sensitivity studies with the South Pole Acoustic Test Setup

Acoustic Transmitters for Underwater Neutrino Telescopes

Active Galactic Nuclei and their role in Galaxy Formation and Evolution

Active Learning to Overcome Sample Selection Bias: Application to Photometric Variable Star Classification

Active optics Shack-Hartmann sensor: using spot sizes to measure the seeing at the focal plane of a telescope