M. Busso

Design and construction of the moving optical systems of IRAIT

Josep Colome1, Carlos Abia2, Inma Dominguez2, Jordi Isern1,3, Gino Tosti4, Maurizio Busso4, Giuliano Nucciarelli4, Fabio Roncella4, Oscar Straniero5 and Mauro Dolci5, for the IRAIT Collaboration 1 Institut d’Estudis Espacials de Catalunya (IEEC), E-08034 Barcelona, Spain email: colome@ieec.cat Dpto.Fisica Teorica y del Cosmos, Universidad de Granada, E-18071 Granada, Spain 3 Institut de Ciencies de l’Espai (CSIC), E-08034 Barcelona, Spain Dipartimento di Fisica, Universita di Perugia, via A. Pascoli, I-06100 Perugia, Italy 5 INAF-Osservatorio di Teramo, Via Maggini, I-64100 Teramo, Italy

NEAR-IR CHARACTERIZATION OF AGB SOURCES

AGB stars are surrounded by cool circumstellar envelopes (CSEs) of gas and dust that are strong sources of IR thermal radiation.

Polarimetry and CCD Imaging of Herbig Ae/Be Stars and Star Forming Regions

The sample of Ae/Be stars listed by Herbig (1960) are prime candidates for early-type, pre-Main Sequence stars. Their characteristics, as described by Herbig (1960) and the spectroscopic studies by Strom et al. (1972) and by Garrison and Anderson (1977), indicate that the objects are young with features such as emission lines, association with dust clouds and reflection nebulosity, irregular variability, infrared excess and molecular line emission. These objects are recognized as representing a group of higher-mass analogs of the T Tauri stars.