澳门六合彩历史记录

My research focuses on observational studies of young stars, star-forming聽regions, and massive Wolf-Rayet stars. I make use of several space-based聽telescopes including the Chandra and XMM-Newton X-ray observatories, the聽Spitzer infrared telescope, and 聽HST in the ultraviolet. I have been using聽these telescopes and others including the Very Large Array (VLA) to聽determine the properties of high-speed bipolar jets ejected by young聽stars and how such jets are heated to UV and X-ray emitting temperatures.聽I am also investigating the effects of X-ray heating on the circumstellar聽disks and protoplanets surrounding young T Tauri stars. My interest in聽Wolf-Rayet stars (which are supernova progenitors) centers on the origin聽of their bright X-ray emission and its relation to high-temperature聽shocks formed in their supersonic winds.