Young stellar objects in Taurus in the near- and mid-infrared

摘要

We present several near- and mid-infrared images of newly discovered young stellar objects (YSOs) in the Taurus cloud complex. The emission seen at these wavelengths is higher than what is expected from a stellar photo-sphere; the excess radiation originates in the dusty circumstellar disks surrounding these young stars. In addition to circumstellar disks, YSOs often have nearby companions. Our observations resolve the multiplicity and spectral energy distribution of our sample of YSOs and thus aid in determining their evolutionary stage.