HERBIG-HARO OBJECTS, COMETARY NEBULAE, AND PMS STARS IN THE STAR-FORMING REGION NGC-7129

Manifestations of pre-main-sequence stellar activity in the star-formi ng region NGC 7129 are investigated using new observations and data fr om the literature. The spectrum of HH 105 has been obtained for the fi rst time and confirms this to be a Herbig-Haro object with extremely l ow excitation and almost negligible radial velocity. The internal stru cture of GGD 35 is studied; in particular, emission Line splitting has been detected at the northwest (trailing) edge of the object. The vel ocity field in clumps in GGD 34 is analyzed and is confirmed to have a sinusoidal character. Other HH objects are briefly discussed. All ref lection and cometary nebulae included in the NGC 7129 group are invest igated. All T Tauri stars detected in this region to date are listed, and the H-alpha emission line profiles of some are described. The comp lex nature of the interaction of collimated outflows with the interste llar medium is emphasized.