With the 14 m radio telescope at DRAO and the 4 m at Nagoya University, we have made detailed maps of 12 C O and 13 C O emissions from two Barnard objects B133 and B134 in the J = 1 → O rotational transition lines. Usual LTE analyses of the CO observations led us to determine the distribution of column densities over an entire area encompassing both globules. Total gas masses estimated from the column density map are 90 M ⊙ and 20 M ⊙ for B133 and B134, respectively. The radial velocity of B133 is red shifted with respect to B134 by 0.8 k m s − 1 , which is too lagre to bind the two clouds as a binary system. We have shown that the usual stability analysis based on the simplified version of virial theorem with the second time-derivative of the moment of inertia term ¨ I being ignored could mislead us in determining whether a given cloud eventually collapses or not. The lull version of the scalar virial theorem with the ¨ I term is shown to be useful in following up the time-dependent variations of the cloud size R and its streaming velocity ˙ R as functions of time. Results of our stability analysis suggest that B133 will eventually collapse in ( 2 ∼ 4 ) × 10 6 years.

ABSTRACT
Ⅰ. INTRODUCTION
Ⅱ. CO RADIO OBSERVATIONS
Ⅲ. LTE ANALYSIS OF THE ¹²CO AND ¹³CO OBSERVATIONS
Ⅳ. VELOCITY STRUCTURE
Ⅴ. STABILITY ANALYSIS ON THE BASIS OF THE SCALAR VIRIAL THEOREM
Ⅵ. SUMMARY
ACKNOWLEDGEMENTS
REFERENCES

• S. S. HONG(Department of Astronomy, Seoul National University)
• H. G. KIM(Department of Astronomy, Seoul National University)
• S. H. PARK(Department of Astronomy, Seoul National University)
• Y. S. PARK(Department of Astronomy, Seoul National University)
• K. IMAOKA(Department of Astrophysics, Nagoya University)