A maser phenomenon created by OH molecules with characteristic OH lines. OH masers are detected toward a variety of astronomical environments, including massive star formation regions and evolved late
-type stars.
A maser phenomenon created by OH molecules with characteristic OH lines. OH masers are detected toward a variety of astronomical environments, including massive star formation regions and evolved late
-type stars.
An astronomical source emitting microwave radiation characteristic of the hydroxyl OH molecule, especially one showing a maser effect. OH sources are found in molecular clouds in interstellar medium a
nd in the cool envelopes of evolved stars.