VLBI observations of SiO masers at 43 and 86 GHz in AGB stars.

R. Soria-Ruiz; J. Alcolea; V. Bujarrabal; F. Colomer; J. F. Desmurs; K. Marvel; D. Boboltz; P. J. Diamond; A. Kemball

VLBI observations of SiO masers at 43 and 86 GHz in AGB stars.

R. Soria-Ruiz, J. Alcolea, V. Bujarrabal, F. Colomer, J. F. Desmurs, K. Marvel, D. Boboltz, P. J. Diamond, A. Kemball

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We present the results of the 1st simultaneous observations of SiO masers at a wavelength of 3 and 7 mm with VLBI techniques. We have obsd. the J = 1-0 and J = 2-1 rotational lines in the v = 1 and v = 2 vibrationally excited states of the most abundant isotopic substitution of 28Si16O, in 3 long period variable stars; TX Cam, WX Psc, and cCyg. The most surprising result from these observations is that the emissions at 43 and 86 GHz have a very different and non coincident distribution, in contrast with the predictions of the current theor. pumping models for these circumstellar masers. [on SciFinder (R)]

Original language	English
Title of host publication	Highlights of Spanish Astrophysics III, Proceedings of the Scientific Meeting of the Spanish Astronomical Society, 5th, Toledo, Spain, Sept. 9-13, 2002
Publication status	Published - 2003

Keywords

Red giants (VLBI observations of SiO masers at 43 and 86 GHz in AGB stars); Masers (cosmic; VLBI observations of SiO masers at 43 and 86 GHz in AGB stars)

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@inproceedings{3c8a1761a8be4907a4ef15e00da38630,

title = "VLBI observations of SiO masers at 43 and 86 GHz in AGB stars.",

abstract = "We present the results of the 1st simultaneous observations of SiO masers at a wavelength of 3 and 7 mm with VLBI techniques. We have obsd. the J = 1-0 and J = 2-1 rotational lines in the v = 1 and v = 2 vibrationally excited states of the most abundant isotopic substitution of 28Si16O, in 3 long period variable stars; TX Cam, WX Psc, and cCyg. The most surprising result from these observations is that the emissions at 43 and 86 GHz have a very different and non coincident distribution, in contrast with the predictions of the current theor. pumping models for these circumstellar masers. [on SciFinder (R)]",

keywords = "Red giants (VLBI observations of SiO masers at 43 and 86 GHz in AGB stars); Masers (cosmic; VLBI observations of SiO masers at 43 and 86 GHz in AGB stars)",

author = "R. Soria-Ruiz and J. Alcolea and V. Bujarrabal and F. Colomer and Desmurs, {J. F.} and K. Marvel and D. Boboltz and Diamond, {P. J.} and A. Kemball",

year = "2003",

language = "English",

booktitle = "Highlights of Spanish Astrophysics III, Proceedings of the Scientific Meeting of the Spanish Astronomical Society, 5th, Toledo, Spain, Sept. 9-13, 2002",

}

TY - GEN

T1 - VLBI observations of SiO masers at 43 and 86 GHz in AGB stars.

AU - Soria-Ruiz, R.

AU - Alcolea, J.

AU - Bujarrabal, V.

AU - Colomer, F.

AU - Desmurs, J. F.

AU - Marvel, K.

AU - Boboltz, D.

AU - Diamond, P. J.

AU - Kemball, A.

PY - 2003

Y1 - 2003

N2 - We present the results of the 1st simultaneous observations of SiO masers at a wavelength of 3 and 7 mm with VLBI techniques. We have obsd. the J = 1-0 and J = 2-1 rotational lines in the v = 1 and v = 2 vibrationally excited states of the most abundant isotopic substitution of 28Si16O, in 3 long period variable stars; TX Cam, WX Psc, and cCyg. The most surprising result from these observations is that the emissions at 43 and 86 GHz have a very different and non coincident distribution, in contrast with the predictions of the current theor. pumping models for these circumstellar masers. [on SciFinder (R)]

AB - We present the results of the 1st simultaneous observations of SiO masers at a wavelength of 3 and 7 mm with VLBI techniques. We have obsd. the J = 1-0 and J = 2-1 rotational lines in the v = 1 and v = 2 vibrationally excited states of the most abundant isotopic substitution of 28Si16O, in 3 long period variable stars; TX Cam, WX Psc, and cCyg. The most surprising result from these observations is that the emissions at 43 and 86 GHz have a very different and non coincident distribution, in contrast with the predictions of the current theor. pumping models for these circumstellar masers. [on SciFinder (R)]

KW - Red giants (VLBI observations of SiO masers at 43 and 86 GHz in AGB stars); Masers (cosmic; VLBI observations of SiO masers at 43 and 86 GHz in AGB stars)

M3 - Conference contribution

BT - Highlights of Spanish Astrophysics III, Proceedings of the Scientific Meeting of the Spanish Astronomical Society, 5th, Toledo, Spain, Sept. 9-13, 2002

ER -

VLBI observations of SiO masers at 43 and 86 GHz in AGB stars.

Abstract

Keywords

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