Friday 22 October at 2:30pm at the Gemini HQ Seminar Room (NOTE LOCATION)

Karl Stapelfeldt WFPC2/SIRTF Scientist, JPL/Caltech

"HST Imaging of Young Stellar Object Disks and Jets"

ABSTRACT: "In the nearest star-forming regions, HST is providing images of protoplanetary disks at 10 AU spatial resolution. I will present WFPC2 and NICMOS results for a dozen young disks, and for some cases comparisons of these data with millimeterwave CO maps, adaptive optics images, and scattered light models. In addition to placing constraints on disk structural parameters, the HST observations reveal unusual variability in the edge-on disk of HH 30 and in the jet of XZ Tauri. The talk will conclude on the subject of future directions in disk imaging research using SIRTF and NGST."