IALP 13078
INSTITUTO DE ASTROFISICA LA PLATA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Efectos de la difusón en las líneas espectrales de estrellas peculiares magneticas de helio
Autor/es:
VALLVERDÚ, R. E.; PANEI J. A.; CIDALE, L. S.
Lugar:
La Plata
Reunión:
Congreso; LVIII Reunión Anual de la Asociación Argentina de Astronomía; 2015
Institución organizadora:
Asociación Argentina de Astronomía
Resumen:
Chemically peculiar stars show intensity variations in the spectral lines of some chemical elements. These variations might correlate with the rotation period of the star. A possible explanation to this phenomenon is the existence of spots relate to regions of different density for a particular chemical element. Diffusion is a possible mechanism that would allow the formation of these spots. In this work, we show how magnetic fields can affect the diffusion processes, favoring or not the spot?s formation, whose presence results in variations of the intensities of the observed line profiles. In particular, the variations in the lines of helium are discussed.
