On the possibility of outflows from very low-mass companions

High-velocity outflows, one thought to be possible only for massive pre-main-sequence stars, have been found associated with sources of less than solar mass. The authors investigate the possibility that even much small objects may, at some stage of their early lives, drive such outflows. The predicted properties of outflows from these low-mass objects are such that they would be very difficult to detect directly. If, however, the loss-mass source is the companion of a larger star the outflow may have interesting and possibly detectable effects on the development of the combined system.