Magnetic fields in the envelopes of late-type stars: circular polarization of H2O masers.

W. H. T. Vlemmings; P. J. Diamond; H. J. van Langevelde

doi:10.1007/978-94-010-0139-7_67

Magnetic fields in the envelopes of late-type stars: circular polarization of H2O masers.

W. H. T. Vlemmings, P. J. Diamond, H. J. van Langevelde

Research output: Contribution to journal › Article › peer-review

Abstract

We present the first circular polarization measurements of circumstellar H2O masers around a sample of late-type stars. These observations are used to obtain the magnetic field strength in the H2O maser region with both an LTE and non-LTE anal. We find fields from a few hundred milliGauss up to a few Gauss, indicating a solar-type r-2 dependence of the magnetic field on the distance. No linear polarization is detected to less than 1%. [on SciFinder (R)]

Original language	English
Pages (from-to)	291-294
Journal	Astrophysics and Space Science Library
Volume	283
DOIs	https://doi.org/10.1007/978-94-010-0139-7_67
Publication status	Published - 2003

Keywords

Masers (cosmic; magnetic fields in envelopes of late-type stars measured by circular polarization of H2O masers); Circumstellar shells; Late-type stars (magnetic fields in envelopes of late-type stars measured by circular polarization of H2O masers); Magnetic field (stellar; magnetic fields in envelopes of late-type stars measured by circular polarization of H2O masers)

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10.1007/978-94-010-0139-7_67

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title = "Magnetic fields in the envelopes of late-type stars: circular polarization of H2O masers.",

abstract = "We present the first circular polarization measurements of circumstellar H2O masers around a sample of late-type stars. These observations are used to obtain the magnetic field strength in the H2O maser region with both an LTE and non-LTE anal. We find fields from a few hundred milliGauss up to a few Gauss, indicating a solar-type r-2 dependence of the magnetic field on the distance. No linear polarization is detected to less than 1\%. [on SciFinder (R)]",

keywords = "Masers (cosmic; magnetic fields in envelopes of late-type stars measured by circular polarization of H2O masers); Circumstellar shells; Late-type stars (magnetic fields in envelopes of late-type stars measured by circular polarization of H2O masers); Magnetic field (stellar; magnetic fields in envelopes of late-type stars measured by circular polarization of H2O masers)",

author = "Vlemmings, \{W. H. T.\} and Diamond, \{P. J.\} and \{van Langevelde\}, \{H. J.\}",

year = "2003",

doi = "10.1007/978-94-010-0139-7\_67",

language = "English",

volume = "283",

pages = "291--294",

journal = "Astrophysics and Space Science Library",

issn = "0067-0057",

publisher = "Springer Nature",

}

TY - JOUR

T1 - Magnetic fields in the envelopes of late-type stars: circular polarization of H2O masers.

AU - Vlemmings, W. H. T.

AU - Diamond, P. J.

AU - van Langevelde, H. J.

PY - 2003

Y1 - 2003

N2 - We present the first circular polarization measurements of circumstellar H2O masers around a sample of late-type stars. These observations are used to obtain the magnetic field strength in the H2O maser region with both an LTE and non-LTE anal. We find fields from a few hundred milliGauss up to a few Gauss, indicating a solar-type r-2 dependence of the magnetic field on the distance. No linear polarization is detected to less than 1%. [on SciFinder (R)]

AB - We present the first circular polarization measurements of circumstellar H2O masers around a sample of late-type stars. These observations are used to obtain the magnetic field strength in the H2O maser region with both an LTE and non-LTE anal. We find fields from a few hundred milliGauss up to a few Gauss, indicating a solar-type r-2 dependence of the magnetic field on the distance. No linear polarization is detected to less than 1%. [on SciFinder (R)]

KW - Masers (cosmic; magnetic fields in envelopes of late-type stars measured by circular polarization of H2O masers); Circumstellar shells; Late-type stars (magnetic fields in envelopes of late-type stars measured by circular polarization of H2O masers); Magn

U2 - 10.1007/978-94-010-0139-7_67

DO - 10.1007/978-94-010-0139-7_67

M3 - Article

SN - 0067-0057

VL - 283

SP - 291

EP - 294

JO - Astrophysics and Space Science Library

JF - Astrophysics and Space Science Library

ER -

Magnetic fields in the envelopes of late-type stars: circular polarization of H2O masers.

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Keywords

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