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Study of magnetic field geometry and extinction in Bok globule CB130

Das, H. S.; Chakraborty, A.

We trace the peripheral magnetic field structure of Bok globule CB130 by estimating the linear polarization of its field stars in the R band. The magnetic field orientation sampled by these stars, aligned on average among themselves, and the polarization produced within the cloud has a different direction from that of Galactic plane with an offset…

KOSMA ¹²CO(2–1) and (3–2) observations toward Infrared Dark Clouds

Li, Dalei; Tang, Xindi; Zhou, Jianjun +7 more

Infrared Dark Clouds (IRDCs) are a valuable sample to study the initial conditions and the very early stages of the evolution of massive stars. Using the KOSMA telescope, we performed simultaneous single point ¹²CO(2–1) and (3–2) observations toward 117 IRDCs with a detection rate of 74 % for ¹²CO(2–1) and 58 % for ¹²