We present observations of the J=1-0 transition lines of ^12^CO, ^13^CO, and C^18^O toward the Galactic region of 153.60{deg}<=l<=156.50{deg} and 1.85{deg}<=b<=3.50{deg}, using the Purple Mountain Observatory 13.7m millimeter telescope. Based on the ^13^CO data, one main filament and five subfilaments are found together as a network structure in the velocity interval of [-42.5,-30.0]km/s. The kinematic distance of this molecular cloud is estimated to be ~4.5kpc. The median length, width, excitation temperature, and line mass of these filaments are ~49pc, ~2.9pc, ~8.9K, and ~39M_{sun}/pc, respectively. The velocity structures along these filaments exhibit oscillatory patterns, which are likely caused by the fragmentation or accretion process along these filaments. The maximum accretion rate is estimated to be ~700M{sun}_/pc. A total of ~162 ^13^CO clumps and ~103 young stellar objects are identified in this region. Most of the clumps are in gravitationally bound states. Three HII regions (G154.359+2.606, SH2-211, and SH2-212) are found to be located in the apexes of the filaments. Intense star-forming activity is found along the entire filamentary cloud. The observed results may help us to better understand the link between filaments and massive star formation.
Cone search capability for table J/ApJ/938/44/table6 (Properties of the identified dense clumps; section 3.5)
Cone search capability for table J/ApJ/938/44/table7 (IR photometric magnitudes of candidate YSOs; section 3.6)
