Peripheral Structures of Planetary Systems

Perkins Revised MK Types for the Cooler Stars (Keenan+ 1989)

Permafrost

Permanent changes in sporadic E layers over fortaleza, Brazil

Permanent superhumps in V603 Aquilae

Permeability Data for Impact Breccias

Permeability dependence of streaming potential in rocks for various fluid conductivities

Permeability differences between surface-derived and deep drillhole core samples

Permeability of JSC-1A: A lunar soil simulant

Permeability reduction of a natural fracture under net dissolution by hydrothermal fluids

Permian to Early Triassic magnetostratigraphy from the Central European Basin in Poland: Implications on regional and worldwide correlations

Permitted Fe II emission in Seyfert 1 galaxies and QSOs. II - The excitation mechanism

Permitted iron lines in NGC 7469

Permo-Triassic magnetostratigraphy in China: northern Tarim

Perpendicular electron heating by absorption of auroral kilometric radiation

Perpendicular Heating of H+ and O+ Ions Due to an Oblique Double Layer at the Transition Region of the Auroral Cavity

Perpendicular ion heating effects on the refilling of the outer plasmasphere

Perpendicular transport of solar energetic particles: Ulysses observations at high heliographic latitudes

Perrineville Observatory Report: Double Star Measurements for 2006

PERSEE: description of a new concept for nulling interferometry recombination and OPD measurement