PRESENTAMOS LOS RESULTADOS DE UN ESTUDIO COMBINADO EN EL OPTICO, INFRARROJO CERCANO E INFRARROJO LEJANO (IRAS) DE VEINTE REGIONES HII GALACTICAS DONDE YA EXISTIA INFORMACION BASTANTE COMPLETA EN ONDAS DE RADIO-MILIMETRICAS.LA MUESTRA DE REGIONES HII PRESENTA PROPIEDADES INFRARROJAS MUY BIEN DEFINIDAS: I) LA TEMPERATURA DE LOS GRANOS DE POLVO MAS

This paper discusses synthetic horizontal branches constructed from a grid of horizontal-branch (HB) evolutionary tracks with the alpha-elements enhanced by a factor of 5 with respect to the solar-scaled mixture and various surface helium and heavy-element abundances. The luminosity log L(3.83) and the luminosity-to-mass ratio A(3.83) of the ZAHB

An optically thick relativistic Keplerian accretion disk model is used to fit the broad component of the H-alpha, H-beta, and He I 5876 A emission line profiles of the active nucleus of NGC 985. A set of values of the relevant parameters is derived from the independent fits of the three lines. Those values are consistent for the lines examined and

Research was carried out on the effect of considering two extreme kinds of Skyrme-type nuclear interactions on the outcome of stellar core collapsing models. Particular attention was given to dissociation effects generated by the shock. Neutrinos transport is included via a multigroup trapping scheme.

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Several aspects of the evolution of an SNR into a low-beta ISM are investigated. The presence of a strong magnetic field in the unperturbed ISM is found to have a profound effect on the structure and evolutionary pattern of an SNR embedded in it. If the field strength is high enough for the outgoing shock to be weak, then most of the explosion