Rotating Winds from Accretion Disks in Cataclysmic Variables: Eclipse Modeling of V347 Puppis

We study the eclipsing nova-like variable V347 Pup by matching its UV emission line profiles in and out of eclipse to synthetic lines using a 3D kinematic and radiation transfer model. Our results support the accretion disk origin of winds in non-magnetic CVs as opposite to the WD origin. Our main point concerns the importance of rotation for the UV emission line shapes in such systems. In particular, we show that the narrowing of the UV emission lines in V347 Pup during eclipse can be easily explained by the eclipse of the innermost part of the wind by the secondary and the resulting reduction in the contribution of rotational broadening to the width of the lines. During the eclipse, the residual line flux is very sensitive to the maximal temperature of disk radiation. Good fits for reasonable mass-loss rates have been obtained for maximum disk temperatures of 50,000 degrees. This constraint was imposed either by leveling off the inner disk temperature profiles, in agreement with recent observations of some nova-like objects, or by assuming that the accretion disk does not extend to the surface of the white dwarf, in which case V347 up would be an intermediate polar. In anticipation of high-speed spectrophotometry of CVs by the HST, we provide numerical model of a time-resolved eclipse of V347 Pup or similar such system to be verified by future observations.Comment: x pages, postscrip, compressed uuencoded. 11 figures available by anonymous ftp from ftp://asta.pa.uky.edu/shlosman/puppis/ (get *.PS.Z). To appear in Ap

Bethe ansatz solution of an integrable, non-Abelian anyon chain with D(D_3) symmetry

The exact solution for the energy spectrum of a one-dimensional Hamiltonian with local two-site interactions and periodic boundary conditions is determined. The two-site Hamiltonians commute with the symmetry algebra given by the Drinfeld double D(D_3) of the dihedral group D_3. As such the model describes local interactions between non-Abelian anyons, with fusion rules given by the tensor product decompositions of the irreducible representations of D(D_3). The Bethe ansatz equations which characterise the exact solution are found through the use of functional relations satisfied by a set of mutually commuting transfer matrices.Comment: 19 page

Alien Registration- Straight, Isaac W. (Mars Hill, Aroostook County)

https://digitalmaine.com/alien_docs/34041/thumbnail.jp

A Study of Animal Husbandry Practices of One Hundred Negro Farmers in Anderson County, Texas

Many instructors teaching vocational agriculture in high schools can greatly improve their teaching techniques by first improving their knowledge of teaching. New teachers would be more efficient if they, too, could find out more definitely what they should teach before they begin teaching. It is with these facts in mind that this study was undertaken. The writer proposes in this study to work out suggestions that may be used in teaching animal husbandry in Clemmons High School, Anderson County, Texas. It is also hoped that these suggestions may prove helpful to teachers of vocational agriculture in other schools in Anderson County. A survey was made of certain animal husbandry practices to determine the practices used. From this survey deductions were made and it is hoped that the information found will be used in outlining a program in animal husbandry to be taught in Clemmons High School. The problem dealt with in this study may best be set forth by the following questions: 1. What are the animal husbandry practices used by the 100 Negro farmers surveyed in Anderson County? 2. What practices are essential for successful animal husbandry production on these 100 farms surveyed? 3. To what extent can the animal husbandry practices be improved in Clemmons School Community, Anderson County, Texas