Resumo

NAGEL, Erick. Effect of a stellar companion on the modeling of HD 142527 infrared sed. Rev. mex. astron. astrofis [online]. 2014, vol.50, n.1, pp.41-47. ISSN 0185-1101.

The discovery of a companion of the Herbig Ae/Be star HD 142527 motivates the study of the effect that it produces on the SED. The main change on the system configuration is the formation of a gap in the disk. Due to this change, a wall (outer edge of the gap), which is frontally illuminated by stellar radiation is formed. We present a model for the SED, considering all the components: a disk with two gaps (one produced by the stellar companion and the other by potential planets), three walls (two associated with the gaps and the other with dust sublimation), and optically thin streams of material in the gaps and the stars. The optically thin material required to fit the spectrum is located in a halo, but also inside the gaps. The modeled halo is smaller than the one considered in a previous model of the system.

Palavras-chave : infrared [general]; protoplanetary disks; stars [pre-main sequence].

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