Waterfowl Harvest and Hunter Use at Carlyle Lake During the 1972 Season

Division of Wildlife Resources Migratory Bird Section, Periodic Report No. 1Report issued on: March 26, 197

Neutron star deformation due to poloidal-toroidal magnetic fields of arbitrary multipole order: a new analytic approach

A recipe is presented to construct an analytic, self-consistent model of a non-barotropic neutron star with a poloidal-toroidal field of arbitrary multipole order, whose toroidal component is confined in a torus around the neutral curve inside the star, as in numerical simulations of twisted tori. The recipe takes advantage of magnetic-field-aligned coordinates to ensure continuity of the mass density at the surface of the torus. The density perturbation and ellipticity of such a star are calculated in general and for the special case of a mixed dipole-quadrupole field as a worked example. The calculation generalises previous work restricted to dipolar, poloidal-toroidal and multipolar, poloidal-only configurations. The results are applied, as an example, to magnetars whose observations (e.g., spectral features and pulse modulation) indicate that the internal magnetic fields may be at least one order of magnitude stronger than the external fields, as inferred from their spin downs, and are not purely dipolar.Comment: 14 pages, 6 figures, 1 table. Accepted for publication in the Monthly Notices of the Royal Astronomical Societ

Mind Your Calling

Mind Your Calling, a speach given for the Friends United Meeting in 1972.https://digitalcommons.georgefox.edu/arthur_roberts/1004/thumbnail.jp

Notes and Numbers on the Profits Squeeze

macroeconomics, profit squeeze

Waterfowl Harvest and Hunter Use at Carlyle Lake During the 1973 Season

Division of Wildlife Resources Migratory Bird Section, Periodic Report No. 7Report issued on: April 15, 197

Characteristics of Waterfowl Harvest at Horseshoe Lake, Madison County, Illinois

Division of Wildlife Resources Migratory Bird Section, Periodic Report No. 13Report issued on: April 21, 197