Protostars and Planets VI, Heidelberg, July 15-20, 2013
Poster 2B030
Chamaeleon by Herschel
Merín, Bruno (ESA ESAC)
Winston, Elaine (ESA ESTEC)
Spezzi, Loredana (ESO)
Matrŕ, Luca (ESA ESAC)
Ribas, Álvaro (CAB)
Bouy, Hervé (CAB)
Alves de Oliveira, Catarina (ESA ESAC)
Vavrek, Roland (ESA ESAC)
Puga, Elena (ESA ESAC)
Cox, Nick (KUL)
Prusti, Timo (ESA ESTEC)
Kóspál, Agnes (ESA ESTEC)
Pilbratt, Göran (ESA ESTEC)
André, Philippe (CEA Saclay)
Abstract:
This contribution summarizes five papers prepared by our ESAC/ESTEC group analyzing the Herschel PACS and SPIRE mosaics of the Chamaeleon star-forming regions, obtained as part of the Goulds Belt Survey Herschel Key Program (P.I.: P. André): 1) Kóspál et al. (2012) discusses the dusty shell emitted and heated by the intermediate mass star HD 97300 as observed by Spitzer and Herschel. 2) Winston et al. (2012) presents the Herschel detections of known objects in the Chamaeleon I region, the richest star-forming cloud in the Chameleon complex, and shows that both protostars and disks have similar Herschel colors. 3) Spezzi et al. (2013) analyzes the Herschel data of the protostars and disks in the Chamaeleon II region, the second most active one, and shows how the Spitzer plus Herschel data constrain the possible parameters of the protoplanetary disks. 4) Matrŕ et al. (2012) shows a detailed investigation of a former transitional disk in Chamaeleon I, called T54, and shows that the higher spatial resolution of Herschel as compared with that of Spitzer allows to discard part of its far-infrared excess as unrelated emission from a nearby nebulosity, hence making this object a wrongly previously identified transitional disk. Finally 5) Ribas et al. (2013) studies the nature of all the other transitional disks in the Chamaeleon I region with large inner holes, which could be forming planets at the present time, and show evidence that the outer disks as probed by the Herschel data, are also systematically different from the those around normal T Tauri stars. All these investigations are a showcase of our current exploitation of the rich Herschel maps of the Chamaeleon regions.
Click here to view poster PDF