Abstract
ABSTRACT A group of Bok globules in Musca exhibit weak emission because of their proximity to Alpha Mus. The association of star and nebulae makes possible an unusually good distance determination for the globules. A faint H-alpha emission star coincides with one of the globules. It is noted that of the several processes that are postulated to stimulate star formation - supernovae, density waves, cloud collisions, stellar winds, and ionization-driven shocks - the last may be relevant in Musca. Reference is made to Elmegreen and Elmegreen (1978), who showed that short-lived shocks or those which sweep up little material may result in the formation of Bok globules or small star clusters. It is thought that in Musca this process may be demonstrated by Alpha Mus's fragmentation of the nearby dark lane into Bok globules and perhaps in the formation of a few low-mass stars.
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