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HD 30885


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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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观测天体数据

星座:金牛座
右阿森松:04h52m22.58s
赤纬:+23°45'05.9"
视星:8.58
距离:175.131 天文距离
右阿森松适当运动:-5.5
赤纬适当运动:-9.6
B-T magnitude:10.192
V-T magnitude:8.714

目录:
适当名称   (Edit)
HD 1989HD 30885
TYCHO-2 2000TYC 1831-1130-1
USNO-A2.0USNO-A2 1125-01861764
HIPHIP 22653

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