The JCMT BISTRO Survey: Studying the Complex Magnetic Field of L43

Abstract We present observations of polarized dust emission at 850 μ m from the L43 molecular cloud, which sits in Ophiuchus cloud complex. The data were taken using SCUBA-2/POL-2 on James Clerk Maxwell Telescope as a part BISTRO large program. is dense ( N H 2 ∼ 10 22 –10 23 cm −2 ) complex with submillimeter-bright starless core and two protostellar sources. There appears to be an evolutionary gradient along isolated filament that embedded within, most evolved source closest Sco OB2 association. One protostars drives CO outflow has created cavity southeast. see magnetic field aligned walls outflow, suggesting interaction outflow. also find strength up ∼160 ± 30 G main ∼90 40 more diffuse, extended region. These strengths give magnetically super- subcritical values, respectively, both are found roughly trans-Alfvénic. new method reduction for these denser but fainter objects like cores.