In an e-mail last year, British amateur Sakib Rasool suggested writing about
young stellar objects with cometary reflection nebulae.
Images of
young stellar objects in these regions reveal that many are still embedded within their birth clouds.
However, in the early 1980s astronomers found a pair of unidentified infrared features at 3.43 and 3.54 microns in
young stellar objects called Herbig Ae/Be stars.
In August 1997 Terebey was using the Hubble Space Telescope's Near Infrared Camera and Multi-Object Spectrometer (NICMOS) to survey
young stellar objects in a dusty, star-forming region in Taurus some 450 light-years from Earth.
Wilking (University of Missouri) and his collaborators have obtained JHK images of the system with the University of Hawaii's 2.2-meter reflector to trace the distribution of
young stellar objects within this system.
Similarly, fully understanding star formation and early stellar evolution requires a physically meaningful spectral classification of young stellar objects.
Astronomers now believe that the variation in the shapes of the spectra of young stellar objects from Class I to III indicates the gradual dissipation of gas and dust from around newly forming stars.
The simultaneous absence of evidence for accretion disks and energetic outflows in naked T Tauris strongly supports the existence of a link between the accretion and outflow processes in
young stellar objects.