The study of the storage of toroidal flux tubes at the base of the convection zone is of interest in connection with the operation of a solar αΩ-type dynamo. The natural equilibrium state for an isolated flux tube is that of neutral buoyancy (so that there is a mass flow along the tube in the direction of solar rotation); flux tubes in thermal

A numerical code has been developed for modelling the asymmetries in three spectral lines (K I 7699, Fe I 5576 and Fe I 5635A) formed at different photospheric heights and observed in plage regions near the solar disk center. The aim of this work was to reproduce the absolute line bisectors obtained from low resolution observations. The mere

Two molecular cloudlets have been detected and mapped in a partial survey of 12CO emission in a diffuse H I cloud toward Perseus. Previous observations of K I absorption and 21 cm emission had shown that the cloud is within 120 pc of the Sun, with a diameter of 14 pc, a total mass 1500 Msun, and temperatures as low as 30 K, making it a good

In this report we review the prospects for Higgs physics at LEP2. The theoretical aspects and the phenomenology of Higgs particles are discussed within the Standard Model (SM) and the Minimal Supersymmetric Standard Model (MSSM). The experimental search techniques are described and the discovery limits for Higgs bosons in the LEP2 energy range are

The search for structure in the cosmic microwave background (CMB) needs to take into account the Galactic background contribution. The potential of using existing maps at 408 and 1420 MHz to determine this correction at high frequencies is examined. It is found that a significant part of the high Galactic latitude structure evident in these maps is

We consider the universal central extension of the Lie algebra $Vect (S^1)${math s}$ C^{infty}(S^1)$. The coadjoint representation of this Lie algebra has a natural geometric interpretation by matrix analogues of the Sturm-Liouville operators. This approach leads to new Lie superalgebras generalizing the well-known Neveu-Schwartz algebra.