PACS spectroscopy of OH/IR stars

R. Lombaert; B.L. de Vries; L. Decin; J.A.D.L. Blommaert; Pierre Royer; E. De Beck; A. de Koter; L.B.F.M. Waters

PACS spectroscopy of OH/IR stars

R. Lombaert, B.L. de Vries, L. Decin, J.A.D.L. Blommaert, Pierre Royer, E. De Beck, A. de Koter, L.B.F.M. Waters

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

Abstract

Observations of high-excitation molecular emission lines can greatly increase our understanding of AGB winds, as they trace the innermost regions of the circumstellar envelope. The PACS spectrometer on-board the Herschel Space Telescope1, provides for the first time the spectral resolution and sensitivity necessary to trace these lines. We report on the first modelling efforts of a PACS spectral scan for the OH/IR star V669 Cas. Central to our methodology is the consistent treatment of both dust and gas by using a line radiative transfer and a continuum radiative transfer code conjointly. Water emission lines are found to be extremely sensitive to the dust-to-gas ratio, emphasizing the need of consistent modelling for dust and gas.

Original language	English
Title of host publication	Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants
Editors	Lebzelter, T. Wing, R.F. Kerschbaum, F.
Place of Publication	San Francisco
Publisher	Astronomical Society of the Pacific
Pages	309
Number of pages	1
Publication status	Published - 2011

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title = "PACS spectroscopy of OH/IR stars",

abstract = "Observations of high-excitation molecular emission lines can greatly increase our understanding of AGB winds, as they trace the innermost regions of the circumstellar envelope. The PACS spectrometer on-board the Herschel Space Telescope1, provides for the first time the spectral resolution and sensitivity necessary to trace these lines. We report on the first modelling efforts of a PACS spectral scan for the OH/IR star V669 Cas. Central to our methodology is the consistent treatment of both dust and gas by using a line radiative transfer and a continuum radiative transfer code conjointly. Water emission lines are found to be extremely sensitive to the dust-to-gas ratio, emphasizing the need of consistent modelling for dust and gas.",

author = "R. Lombaert and \{de Vries\}, B.L. and L. Decin and J.A.D.L. Blommaert and Pierre Royer and \{De Beck\}, E. and \{de Koter\}, A. and L.B.F.M. Waters",

year = "2011",

language = "English",

pages = "309",

editor = "\{Wing, R.F. Kerschbaum, F.\}, \{Lebzelter, T.\}",

booktitle = "Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants",

publisher = "Astronomical Society of the Pacific",

}

PACS spectroscopy of OH/IR stars. / Lombaert, R.; de Vries, B.L.; Decin, L. et al.
Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants. ed. / Lebzelter, T. Wing, R.F. Kerschbaum, F. San Francisco: Astronomical Society of the Pacific, 2011. p. 309.

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

TY - GEN

T1 - PACS spectroscopy of OH/IR stars

AU - Lombaert, R.

AU - de Vries, B.L.

AU - Decin, L.

AU - Blommaert, J.A.D.L.

AU - Royer, Pierre

AU - De Beck, E.

AU - de Koter, A.

AU - Waters, L.B.F.M.

PY - 2011

Y1 - 2011

N2 - Observations of high-excitation molecular emission lines can greatly increase our understanding of AGB winds, as they trace the innermost regions of the circumstellar envelope. The PACS spectrometer on-board the Herschel Space Telescope1, provides for the first time the spectral resolution and sensitivity necessary to trace these lines. We report on the first modelling efforts of a PACS spectral scan for the OH/IR star V669 Cas. Central to our methodology is the consistent treatment of both dust and gas by using a line radiative transfer and a continuum radiative transfer code conjointly. Water emission lines are found to be extremely sensitive to the dust-to-gas ratio, emphasizing the need of consistent modelling for dust and gas.

AB - Observations of high-excitation molecular emission lines can greatly increase our understanding of AGB winds, as they trace the innermost regions of the circumstellar envelope. The PACS spectrometer on-board the Herschel Space Telescope1, provides for the first time the spectral resolution and sensitivity necessary to trace these lines. We report on the first modelling efforts of a PACS spectral scan for the OH/IR star V669 Cas. Central to our methodology is the consistent treatment of both dust and gas by using a line radiative transfer and a continuum radiative transfer code conjointly. Water emission lines are found to be extremely sensitive to the dust-to-gas ratio, emphasizing the need of consistent modelling for dust and gas.

M3 - Conference contribution

SP - 309

BT - Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants

A2 - Wing, R.F. Kerschbaum, F., Lebzelter, T.

PB - Astronomical Society of the Pacific

CY - San Francisco

ER -

PACS spectroscopy of OH/IR stars

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