Imaging polarimetry of the rotating Bok globule CB67

TL;DR

This study presents polarimetric observations of stars near the rotating Bok globule CB67, revealing an unusual orientation between its elongation, rotation, and magnetic fields, challenging existing theoretical models.

Contribution

It provides new polarimetric data of CB67 and highlights its unique orientation, offering insights into the magnetic and rotational dynamics of Bok globules.

Findings

Elongation and rotation are perpendicular to magnetic fields.

The orientation is unusual compared to typical Bok globules.

Results challenge current theoretical explanations.

Abstract

Polarimetric observations of about 50 stars located in a close vicinity of the Bok globule CB67 having significantly nonspherical shape and rapid rotation are performed. The data obtained are compared with the available observations of this globule at radio and submillimeter wavelengths as well as some theoretical calculations. It is found that the elongation and the rotation moment of CB67 are oriented rather perpendicular to the magnetic fields, which is unusual for Bok globules and is difficult to be explained from the theoretical point of view.