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HD 27933


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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:04h25m38.26s
Declinazione:+29°31'36.2"
Magnitudine apparente:8.198
Distanza:209.644 parsec
Moto proprio RA:6.9
Moto proprio Dec:-13.6
B-T magnitude:9.618
V-T magnitude:8.316

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 27933
TYCHO-2 2000TYC 1828-1117-1
USNO-A2.0USNO-A2 1125-01626728
HIPHIP 20663

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