On 1997 September 2, we observed L1457 (MBM 12) in the LWS02 mode of the LWS (Clegg et al. 1996) on board ISO. The LWS Observer's Manual contains a detailed description of this mode. The data were taken along two cuts with 10 positions each across a molecular clump (see Fig. 1) observed at CO(1-0) (Zimmermann et al. 1990) and in the vicinity of the positions CO03 and 01 (Pound et al. 1990). The spacing between the two cuts and the individual positions on a cut is . ISO's beam size is (FWHM). The cuts are oriented at a position angle (measured East of North) of 135o. The two zero positions are at = 2h 52m 539, = and = 2h 52m 448, = (1950). The target dedicated time was 2297 s for every fine-structure line and every spectrum was scanned 7 times. Reduction was carried out using standard Off Line Processing v6.11 routines. We used the ISAP 1 package v1.3 for further data reduction.
© European Southern Observatory (ESO) 1998
Online publication: July 27, 1998