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Magnetic field structure in the Taurus dark cloud
Optical and infrared polarimetry of sources in the direction of theTaurus cloud are obtained in order to study the magnetic field in thiscloud and its possible role in the cloud's evolution. Most of the starsare background giant stars whose light shines through the cloud and ispolarized by the cloud material. The transverse component of themagnetic field, as delineated by the polarization vectors, is generallyperpendicular to the galactic plane, and the stratified structure of thecloud could be due to the effect of the magnetic field during the earlystages of collapse. Three of the 13 embedded stars are stronglypolarized with position angles nearly perpendicular to those of nearbyfield stars. The polarization of these stars is most likely intrinsic,and the direction of polarization indicates that the materialsurrounding these stars may be magnetic i.e., that the magnetic field isfrozen in this material.
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Osservazione e dati astrometrici
| Costellazione: | Toro |
| Ascensione retta: | 04h46m22.67s |
| Declinazione: | +23°40'30.4" |
| Magnitudine apparente: | 8.262 |
| Distanza: | 250.627 parsec |
| Moto proprio RA: | 9.9 |
| Moto proprio Dec: | -6.5 |
| B-T magnitude: | 9.725 |
| V-T magnitude: | 8.383 |
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