Espectros en el infrarrojo medio de discos de escombros
Abstract
In this contribution we report mid-infrared spectra of 3 stars (ages 10 -- 10 yrs) with known debris disks. These spectra are compared with the absorption profiles of crystalline and amorphous silicates. The presence of absorption bands can be explained by considering the existence of amorphous compounds together with those of the crystalline type. In addition; dust particles may have typical sizes 1.5 m. This would indicate that the material in the debris disks is in a more advanced evolutionary state than in disks around T - Tauri stars ( years) or in the interstellar medium; populated by dust particles with sizes 0.1 m consisting of amorphous silicates. FULL TEXT IN SPANISH
- Publication:
-
Boletin de la Asociacion Argentina de Astronomia La Plata Argentina
- Pub Date:
- 2013
- Bibcode:
- 2013BAAA...56..419G