The other side of Bulge Formation in a Lambda-CDM cosmology: Bulgeless Galaxies in the Local Universe
The Outer Disks of Dwarf Irregular Galaxies
The Outer Disks of Early-Type Galaxies. II. Surface-Brightness Profiles of Unbarred Galaxies and Trends with Hubble Type
The Outer Halo Globular Clusters of M31
The Outer Limits of Galaxy Clusters: Observations to the Virial Radius with Suzaku, XMM, and Chandra
The outflow in Mrk 509: A method to calibrate XMM-Newton EPIC-pn and RGS
The outskirts of globular clusters as modified gravity probes
The overdensity and masses of the friends-of-friends halos and universality of the halo mass function
The Padova-Millennium Galaxy and Group Catalogue (PM2GC): the group-finding method and the PM2GC catalogues of group, binary and single field galaxies
The Pair Fraction of Massive Galaxies at 0 < z < 3
The pairwise velocity probability density function in models with local primordial non-Gaussianity
The Panchromatic Hubble Andromeda Treasury
The Parameter Space of Galaxy Formation
The Parity Odd Universe, Dark Energy and QCD
The Parkes Galactic Meridian Survey (PGMS): observations and CMB polarization foreground analysis
The parsec-scale jet of PKS 1749+096
The parsec-scale properties of the radio galaxy 4C 26.42 in the dense cooling core cluster A1795
The Paths of Gravity in Galileon Cosmology
The peak region of the extragalactic background radiation
The Peaks Formalism and the Formation of Cold Dark Matter Haloes