Herschel-SPIRE FTS spectroscopy of the carbon-rich objects: AFGL 2688, AFGL 618, and NGC 7027

R. Wesson; J. Cernicharo; M. J. Barlow; M. Matsuura; L. Decin; M. A.T. Groenewegen; E. T. Polehampton; M. Agundez; M. Cohen; F. Danie; K. M. Exter; W. K. Gear; H. L. Gomez; P. C. Hargrave; P. Imhof; R. J. Ivison; S. J. Leeks; T. L. Lim; G. Olofsson; G. Savini; B. Sibthorpe; B. M. Swinyard; T. Ueta; D. K. Witherick; J. A. Yates

doi:10.1051/0004-6361/201014589

Herschel-SPIRE FTS spectroscopy of the carbon-rich objects: AFGL 2688, AFGL 618, and NGC 7027

R. Wesson
, J. Cernicharo
, M. J. Barlow
, M. Matsuura
, L. Decin
, M. A.T. Groenewegen
, E. T. Polehampton
, M. Agundez
, M. Cohen
, F. Danie
, K. M. Exter
, W. K. Gear
, H. L. Gomez
, P. C. Hargrave
, P. Imhof
, R. J. Ivison
, S. J. Leeks
, T. L. Lim
, G. Olofsson
, G. Savini

B. Sibthorpe, B. M. Swinyard, T. Ueta, D. K. Witherick, J. A. Yates

University College London
CSIC-INTA - Centro de Astrobiología (CAB)
University College London
KU Leuven
University of Amsterdam
Rutherford Appleton Laboratory
Royal Observatory
University of Lethbridge
Université PSL
University of California Berkeley
Blue Sky Spectroscopy Inc.
Cardiff University
Stockholm University
University of Denver

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

36 Citations (Scopus)

Abstract

We present far-infrared and submillimetre spectra of three carbon-rich evolved objects, AFGL 2688, AFGL 618 and NGC 7027. The spectra were obtained with the SPIRE Fourier-transform spectrometer on board the Herschel Space Observatory, and cover wavelengths from 195-670 ìm, a region of the electromagnetic spectrum hitherto difficult to study in detail. The far infrared spectra of these objects are rich and complex, and we measure over 150 lines in each object. Lines due to 18 different species are detected. We determine physical conditions from observations of the rotational lines of several molecules, and present initial large velocity gradient models for AFGL 618. We detect water in AFGL 2688 for the first time, and confirm its presence in AFGL 618 in both ortho and para forms. In addition, we report the detection of the J = 1-0 line of CH+ in NGC 7027.

Original language	English
Article number	L144
Journal	Astronomy and Astrophysics
Volume	518
Issue number	1
DOIs	https://doi.org/10.1051/0004-6361/201014589
Publication status	Published - 16 Jul 2010
Externally published	Yes

Keywords

Astrochemistry
Circumstellar matter
Infrared: stars
Line: identification
Stars: evolution
Stars: general

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Wesson, R., Cernicharo, J., Barlow, M. J., Matsuura, M., Decin, L., Groenewegen, M. A. T., Polehampton, E. T., Agundez, M., Cohen, M., Danie, F., Exter, K. M., Gear, W. K., Gomez, H. L., Hargrave, P. C., Imhof, P., Ivison, R. J., Leeks, S. J., Lim, T. L., Olofsson, G., ... Yates, J. A. (2010). Herschel-SPIRE FTS spectroscopy of the carbon-rich objects: AFGL 2688, AFGL 618, and NGC 7027. Astronomy and Astrophysics, 518(1), Article L144. https://doi.org/10.1051/0004-6361/201014589

@article{a3d7962ea0d04aeb8c11cfc561b5fe51,

title = "Herschel-SPIRE FTS spectroscopy of the carbon-rich objects: AFGL 2688, AFGL 618, and NGC 7027",

abstract = "We present far-infrared and submillimetre spectra of three carbon-rich evolved objects, AFGL 2688, AFGL 618 and NGC 7027. The spectra were obtained with the SPIRE Fourier-transform spectrometer on board the Herschel Space Observatory, and cover wavelengths from 195-670 {\`i}m, a region of the electromagnetic spectrum hitherto difficult to study in detail. The far infrared spectra of these objects are rich and complex, and we measure over 150 lines in each object. Lines due to 18 different species are detected. We determine physical conditions from observations of the rotational lines of several molecules, and present initial large velocity gradient models for AFGL 618. We detect water in AFGL 2688 for the first time, and confirm its presence in AFGL 618 in both ortho and para forms. In addition, we report the detection of the J = 1-0 line of CH+ in NGC 7027.",

keywords = "Astrochemistry, Circumstellar matter, Infrared: stars, Line: identification, Stars: evolution, Stars: general",

author = "R. Wesson and J. Cernicharo and Barlow, \{M. J.\} and M. Matsuura and L. Decin and Groenewegen, \{M. A.T.\} and Polehampton, \{E. T.\} and M. Agundez and M. Cohen and F. Danie and Exter, \{K. M.\} and Gear, \{W. K.\} and Gomez, \{H. L.\} and Hargrave, \{P. C.\} and P. Imhof and Ivison, \{R. J.\} and Leeks, \{S. J.\} and Lim, \{T. L.\} and G. Olofsson and G. Savini and B. Sibthorpe and Swinyard, \{B. M.\} and T. Ueta and Witherick, \{D. K.\} and Yates, \{J. A.\}",

year = "2010",

month = jul,

day = "16",

doi = "10.1051/0004-6361/201014589",

language = "English",

volume = "518",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

number = "1",

}

Wesson, R, Cernicharo, J, Barlow, MJ, Matsuura, M, Decin, L, Groenewegen, MAT, Polehampton, ET, Agundez, M, Cohen, M, Danie, F, Exter, KM, Gear, WK, Gomez, HL, Hargrave, PC, Imhof, P, Ivison, RJ, Leeks, SJ, Lim, TL, Olofsson, G, Savini, G, Sibthorpe, B, Swinyard, BM, Ueta, T, Witherick, DK & Yates, JA 2010, 'Herschel-SPIRE FTS spectroscopy of the carbon-rich objects: AFGL 2688, AFGL 618, and NGC 7027', Astronomy and Astrophysics, vol. 518, no. 1, L144. https://doi.org/10.1051/0004-6361/201014589

TY - JOUR

T1 - Herschel-SPIRE FTS spectroscopy of the carbon-rich objects

T2 - AFGL 2688, AFGL 618, and NGC 7027

AU - Wesson, R.

AU - Cernicharo, J.

AU - Barlow, M. J.

AU - Matsuura, M.

AU - Decin, L.

AU - Groenewegen, M. A.T.

AU - Polehampton, E. T.

AU - Agundez, M.

AU - Cohen, M.

AU - Danie, F.

AU - Exter, K. M.

AU - Gear, W. K.

AU - Gomez, H. L.

AU - Hargrave, P. C.

AU - Imhof, P.

AU - Ivison, R. J.

AU - Leeks, S. J.

AU - Lim, T. L.

AU - Olofsson, G.

AU - Savini, G.

AU - Sibthorpe, B.

AU - Swinyard, B. M.

AU - Ueta, T.

AU - Witherick, D. K.

AU - Yates, J. A.

PY - 2010/7/16

Y1 - 2010/7/16

N2 - We present far-infrared and submillimetre spectra of three carbon-rich evolved objects, AFGL 2688, AFGL 618 and NGC 7027. The spectra were obtained with the SPIRE Fourier-transform spectrometer on board the Herschel Space Observatory, and cover wavelengths from 195-670 ìm, a region of the electromagnetic spectrum hitherto difficult to study in detail. The far infrared spectra of these objects are rich and complex, and we measure over 150 lines in each object. Lines due to 18 different species are detected. We determine physical conditions from observations of the rotational lines of several molecules, and present initial large velocity gradient models for AFGL 618. We detect water in AFGL 2688 for the first time, and confirm its presence in AFGL 618 in both ortho and para forms. In addition, we report the detection of the J = 1-0 line of CH+ in NGC 7027.

AB - We present far-infrared and submillimetre spectra of three carbon-rich evolved objects, AFGL 2688, AFGL 618 and NGC 7027. The spectra were obtained with the SPIRE Fourier-transform spectrometer on board the Herschel Space Observatory, and cover wavelengths from 195-670 ìm, a region of the electromagnetic spectrum hitherto difficult to study in detail. The far infrared spectra of these objects are rich and complex, and we measure over 150 lines in each object. Lines due to 18 different species are detected. We determine physical conditions from observations of the rotational lines of several molecules, and present initial large velocity gradient models for AFGL 618. We detect water in AFGL 2688 for the first time, and confirm its presence in AFGL 618 in both ortho and para forms. In addition, we report the detection of the J = 1-0 line of CH+ in NGC 7027.

KW - Astrochemistry

KW - Circumstellar matter

KW - Infrared: stars

KW - Line: identification

KW - Stars: evolution

KW - Stars: general

UR - https://www.scopus.com/pages/publications/77954805128

U2 - 10.1051/0004-6361/201014589

DO - 10.1051/0004-6361/201014589

M3 - Article

AN - SCOPUS:77954805128

SN - 0004-6361

VL - 518

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 1

M1 - L144

ER -

Herschel-SPIRE FTS spectroscopy of the carbon-rich objects: AFGL 2688, AFGL 618, and NGC 7027

Abstract

Keywords

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