Full polarization study of SiO masers at 86 GHz
نویسندگان
چکیده
منابع مشابه
Full polarization study of SiO masers at 86 GHz
We study the polarization of the SiO maser emission in a representative sample of evolved stars in order to derive an estimate of the strength of the magnetic field, and thus determine the influence of this magnetic field on evolved stars. We made simultaneous spectroscopic measurements of the 4 Stokes parameters, from which we derived the circular and linear polarization levels. The observatio...
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We present sub-milliarcsecond observations of SiO masers in the late-type stars IRC +10011 and χ Cyg. We have used the NRAO Very Long Baseline Array (VLBA) to map the 43 GHz (v=1, 2 J=1–0) and the 86 GHz (v=1, 2 J=2–1) SiO masers. All the transitions have been imaged except the v=2 J=2–1 in IRC +10011. We report the first VLBI map of the v=1 J=2–1 28 SiO maser in IRC +10011 as well as the first...
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Maser emission from the SiO molecule has been widely observed in the nearcircumstellar envelopes of late-type, evolved stars. VLBI images can resolve individual SiO maser spots, providing information about the kinematics and magnetic field in the extended atmospheres of these stars. This poster presents full polarization images of several SiO maser lines towards the supergiant star VY CMa. VY C...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2006
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20054255