Outer Galactic Disks and a Quantitative Test of Gravity at Low Accelerations

Outer Spiral Disks as Clues to Galaxy Formation and Evolution

Outflow in Overlooked Luminous Quasar: Subaru Observations of AKARI J1757+5907

Outflowing Galactic Winds in Post-starburst and AGN Host Galaxies at 0.2<z<0.8

Outflows from AGN: Kinematics of the Narrow-Line and Coronal-Line Regions in Seyfert Galaxies

Outlying HII Regions in HI-Selected Galaxies

Outside-in Shrinking of the Star-forming Disk of Dwarf Irregular Galaxies

Over half of the far-infrared background light comes from galaxies at z >= 1.2

Overdensities of 24um Sources in the Vicinities of High-Redshift Radio Galaxies

Overdensities of Y-dropout Galaxies from the Brightest-of-Reionizing Galaxies Survey: A Candidate Protocluster at Redshift z~8

Overview of EXIST mission science and implementation

Overview of the Near-IR S0 galaxy Survey (NIRS0S)

OVI Absorption in the Milky Way Disk, and Future Prospects for Studying Absorption at the Galaxy-IGM Interface

Oxford SWIFT IFS and multi-wavelength observations of the Eagle galaxy at z=0.77

Oxygen issue in Core Collapse Supernovae

Oxygen Metallicity Determinations from Optical Emission Lines in Early-type Galaxies