HERBIG-HARO OBJECTS ASSOCIATED WITH EXTREMELY YOUNG SOURCES IN L-1527AND L-1448

We present I, Halpha and [S II] CCD images of the dense cores L 1527 a nd L 1448. A diffuse reflection nebulosity is observed in L 1527. A re d spectrum shows that superimposed on the reflection nebulosity there is HH emission of low excitation and very low radial velocity, upsilon (lsr) almost-equal-to 5.2 km s-1. The object is most probably excited by the very young Class 0 object IRAS 04368 + 2557. The data suggest t hat the IRAS source is surrounded by a dense, flattened circumstellar envelope seen edge-on and approximately oriented in a NS direction. Th e HH emission and reflection nebula are located along the polar direct ion of this envelope. A reflection nebulosity and HH emission is also observed in L 1448. We suggest that they are associated with the Class 0 object L 1448N (IRAS 03225 + 3034). Our findings increase to four t he number of Class 0 objects associated with HH emission, which repres ents almost-equal-to 30% of the Class 0 sources known to date.