Figure 18-15: R I V U X G
A Circumstellar Accretion Disk and Jets This false-color image shows a T Tauri star surrounded by an accretion disk, which we see nearly edge-on. Red denotes emission from ionized gas, while green denotes starlight scattered from dust particles in the disk. The midplane of the accretion disk is so dusty and opaque that it appears dark. Two oppositely directed jets flow away from the star, perpendicular to the disk and along the disk’s rotation axis. This star, Herbig-Haro object HH 30, lies 140 pc (460 ly) from Earth.
A Circumstellar Accretion Disk and Jets This false-color image shows a T Tauri star surrounded by an accretion disk, which we see nearly edge-on. Red denotes emission from ionized gas, while green denotes starlight scattered from dust particles in the disk. The midplane of the accretion disk is so dusty and opaque that it appears dark. Two oppositely directed jets flow away from the star, perpendicular to the disk and along the disk’s rotation axis. This star, Herbig-Haro object HH 30, lies 140 pc (460 ly) from Earth.
(C. Burrows, the WFPC-2 Investigation Definition Team, and NASA)