A computing code has been developed to simulate the center-to-limb variation (CLV) of the bisector's shape, and absolute wavelength shift of the core in strong photospheric lines. Observational results concerning these aspects are also reported for the K I 7699 line. In the numerical simulation, granulation is represented, as a first approximation

Theoretical pulsation frequencies derived from a typical model computation are used to identify the periods during which the Delta Scuti star 63 Herculis oscillates. The frequencies are computed in the adiabatic and linear approximations and consideration is given to p and g modes. The possibility of rotational splitting is considered.

Not Available

Not Available

The paper describes a method for obtainiing expressions for the probability density of structures defined by d degrees of freedom in a Poissonian distribution of points. Procedures for determining the coefficients that appear in these expressions are presented; and the connection (in the high-density limit) with Gaussian random fields is considered

Not Available