Gas in the protoplanetary disc of HD 169142: Herschel's view

G. Meeus, C. Pinte, P. Woitke, B. Montesinos, I. Mendigutía, P. Riviere-Marichalar, C. Eiroa, G. S. Mathews, B. Vandenbussche, C. D. Howard, A. Roberge, G. Sandell, G. Duchêne, F. Ménard, C. A. Grady, W. R F Dent, I. Kamp, J. C. Augereau, W. F. Thi, I. TillingJ. M. Alacid, S. Andrews, D. R. Ardila, G. Aresu, D. Barrado, S. Brittain, D. R. Ciardi, W. Danchi, D. Fedele, I. De Gregorio-Monsalvo, A. Heras, N. Huelamo, A. Krivov, J. Lebreton, R. Liseau, C. Martin-Zaidi, A. Mora, M. Morales-Calderon, H. Nomura, E. Pantin, Ilaria Pascucci, N. Phillips, L. Podio, D. R. Poelman, S. Ramsay, B. Riaz, K. Rice, E. Solano, H. Walker, G. J. White, J. P. Williams, G. Wright

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

In an effort to simultaneously study the gas and dust components of the disc surrounding the young Herbig Ae star HD 169142, we present far-IR observations obtained with the PACS instrument onboard the Herschel Space Observatory. This work is part of the open time key program GASPS, which is aimed at studying the evolution of protoplanetary discs. To constrain the gas properties in the outer disc, we observed the star at several key gas-lines, including [OI] 63.2 and 145.5 μm, [CII] 157.7 μm, CO 72.8 and 90.2 μm, and o-H2O 78.7 and 179.5 μm. We only detect the [OI] 63.2 μm line in our spectra, and derive upper limits for the other lines. We complement our data set with PACS photometry and 12/13CO data obtained with the Submillimeter Array. Furthermore, we derive accurate stellar parameters from optical spectra and UV to mm photometry. We model the dust continuum with the 3D radiative transfer code MCFOST and use this model as an input to analyse the gas lines with the thermo-chemical code ProDiMo. Our dataset is consistent with a simple model in which the gas and dust are well-mixed in a disc with a continuous structure between 20 and 200 AU, but this is not a unique solution. Our modelling effort allows us to constrain the gas-to-dust mass ratio as well as the relative abundance of the PAHs in the disc by simultaneously fitting the lines of several species that originate in different regions. Our results are inconsistent with a gas-poor disc with a large UV excess; a gas mass of 5.0 ± 2.0 × 10-3 $M-{\odot}$ is still present in this disc, in agreement with earlier CO observations.

Original languageEnglish (US)
Article numberL124
JournalAstronomy and Astrophysics
Volume518
Issue number4
DOIs
StatePublished - 2010
Externally publishedYes

Fingerprint

protoplanetary disks
gases
gas
dust
photometry
stars
polycyclic aromatic hydrocarbons
mass ratios
complement
radiative transfer
optical spectrum
relative abundance
observatories
PAH
observatory
continuums

Keywords

  • circumstellar matter
  • infrared: planetary systems
  • planetary systems
  • protoplanetary disks
  • stars: pre-main sequence

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Meeus, G., Pinte, C., Woitke, P., Montesinos, B., Mendigutía, I., Riviere-Marichalar, P., ... Wright, G. (2010). Gas in the protoplanetary disc of HD 169142: Herschel's view. Astronomy and Astrophysics, 518(4), [L124]. https://doi.org/10.1051/0004-6361/201014557

Gas in the protoplanetary disc of HD 169142 : Herschel's view. / Meeus, G.; Pinte, C.; Woitke, P.; Montesinos, B.; Mendigutía, I.; Riviere-Marichalar, P.; Eiroa, C.; Mathews, G. S.; Vandenbussche, B.; Howard, C. D.; Roberge, A.; Sandell, G.; Duchêne, G.; Ménard, F.; Grady, C. A.; Dent, W. R F; Kamp, I.; Augereau, J. C.; Thi, W. F.; Tilling, I.; Alacid, J. M.; Andrews, S.; Ardila, D. R.; Aresu, G.; Barrado, D.; Brittain, S.; Ciardi, D. R.; Danchi, W.; Fedele, D.; De Gregorio-Monsalvo, I.; Heras, A.; Huelamo, N.; Krivov, A.; Lebreton, J.; Liseau, R.; Martin-Zaidi, C.; Mora, A.; Morales-Calderon, M.; Nomura, H.; Pantin, E.; Pascucci, Ilaria; Phillips, N.; Podio, L.; Poelman, D. R.; Ramsay, S.; Riaz, B.; Rice, K.; Solano, E.; Walker, H.; White, G. J.; Williams, J. P.; Wright, G.

In: Astronomy and Astrophysics, Vol. 518, No. 4, L124, 2010.

Research output: Contribution to journalArticle

Meeus, G, Pinte, C, Woitke, P, Montesinos, B, Mendigutía, I, Riviere-Marichalar, P, Eiroa, C, Mathews, GS, Vandenbussche, B, Howard, CD, Roberge, A, Sandell, G, Duchêne, G, Ménard, F, Grady, CA, Dent, WRF, Kamp, I, Augereau, JC, Thi, WF, Tilling, I, Alacid, JM, Andrews, S, Ardila, DR, Aresu, G, Barrado, D, Brittain, S, Ciardi, DR, Danchi, W, Fedele, D, De Gregorio-Monsalvo, I, Heras, A, Huelamo, N, Krivov, A, Lebreton, J, Liseau, R, Martin-Zaidi, C, Mora, A, Morales-Calderon, M, Nomura, H, Pantin, E, Pascucci, I, Phillips, N, Podio, L, Poelman, DR, Ramsay, S, Riaz, B, Rice, K, Solano, E, Walker, H, White, GJ, Williams, JP & Wright, G 2010, 'Gas in the protoplanetary disc of HD 169142: Herschel's view', Astronomy and Astrophysics, vol. 518, no. 4, L124. https://doi.org/10.1051/0004-6361/201014557
Meeus G, Pinte C, Woitke P, Montesinos B, Mendigutía I, Riviere-Marichalar P et al. Gas in the protoplanetary disc of HD 169142: Herschel's view. Astronomy and Astrophysics. 2010;518(4). L124. https://doi.org/10.1051/0004-6361/201014557
Meeus, G. ; Pinte, C. ; Woitke, P. ; Montesinos, B. ; Mendigutía, I. ; Riviere-Marichalar, P. ; Eiroa, C. ; Mathews, G. S. ; Vandenbussche, B. ; Howard, C. D. ; Roberge, A. ; Sandell, G. ; Duchêne, G. ; Ménard, F. ; Grady, C. A. ; Dent, W. R F ; Kamp, I. ; Augereau, J. C. ; Thi, W. F. ; Tilling, I. ; Alacid, J. M. ; Andrews, S. ; Ardila, D. R. ; Aresu, G. ; Barrado, D. ; Brittain, S. ; Ciardi, D. R. ; Danchi, W. ; Fedele, D. ; De Gregorio-Monsalvo, I. ; Heras, A. ; Huelamo, N. ; Krivov, A. ; Lebreton, J. ; Liseau, R. ; Martin-Zaidi, C. ; Mora, A. ; Morales-Calderon, M. ; Nomura, H. ; Pantin, E. ; Pascucci, Ilaria ; Phillips, N. ; Podio, L. ; Poelman, D. R. ; Ramsay, S. ; Riaz, B. ; Rice, K. ; Solano, E. ; Walker, H. ; White, G. J. ; Williams, J. P. ; Wright, G. / Gas in the protoplanetary disc of HD 169142 : Herschel's view. In: Astronomy and Astrophysics. 2010 ; Vol. 518, No. 4.
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abstract = "In an effort to simultaneously study the gas and dust components of the disc surrounding the young Herbig Ae star HD 169142, we present far-IR observations obtained with the PACS instrument onboard the Herschel Space Observatory. This work is part of the open time key program GASPS, which is aimed at studying the evolution of protoplanetary discs. To constrain the gas properties in the outer disc, we observed the star at several key gas-lines, including [OI] 63.2 and 145.5 μm, [CII] 157.7 μm, CO 72.8 and 90.2 μm, and o-H2O 78.7 and 179.5 μm. We only detect the [OI] 63.2 μm line in our spectra, and derive upper limits for the other lines. We complement our data set with PACS photometry and 12/13CO data obtained with the Submillimeter Array. Furthermore, we derive accurate stellar parameters from optical spectra and UV to mm photometry. We model the dust continuum with the 3D radiative transfer code MCFOST and use this model as an input to analyse the gas lines with the thermo-chemical code ProDiMo. Our dataset is consistent with a simple model in which the gas and dust are well-mixed in a disc with a continuous structure between 20 and 200 AU, but this is not a unique solution. Our modelling effort allows us to constrain the gas-to-dust mass ratio as well as the relative abundance of the PAHs in the disc by simultaneously fitting the lines of several species that originate in different regions. Our results are inconsistent with a gas-poor disc with a large UV excess; a gas mass of 5.0 ± 2.0 × 10-3 $M-{\odot}$ is still present in this disc, in agreement with earlier CO observations.",
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TY - JOUR

T1 - Gas in the protoplanetary disc of HD 169142

T2 - Herschel's view

AU - Meeus, G.

AU - Pinte, C.

AU - Woitke, P.

AU - Montesinos, B.

AU - Mendigutía, I.

AU - Riviere-Marichalar, P.

AU - Eiroa, C.

AU - Mathews, G. S.

AU - Vandenbussche, B.

AU - Howard, C. D.

AU - Roberge, A.

AU - Sandell, G.

AU - Duchêne, G.

AU - Ménard, F.

AU - Grady, C. A.

AU - Dent, W. R F

AU - Kamp, I.

AU - Augereau, J. C.

AU - Thi, W. F.

AU - Tilling, I.

AU - Alacid, J. M.

AU - Andrews, S.

AU - Ardila, D. R.

AU - Aresu, G.

AU - Barrado, D.

AU - Brittain, S.

AU - Ciardi, D. R.

AU - Danchi, W.

AU - Fedele, D.

AU - De Gregorio-Monsalvo, I.

AU - Heras, A.

AU - Huelamo, N.

AU - Krivov, A.

AU - Lebreton, J.

AU - Liseau, R.

AU - Martin-Zaidi, C.

AU - Mora, A.

AU - Morales-Calderon, M.

AU - Nomura, H.

AU - Pantin, E.

AU - Pascucci, Ilaria

AU - Phillips, N.

AU - Podio, L.

AU - Poelman, D. R.

AU - Ramsay, S.

AU - Riaz, B.

AU - Rice, K.

AU - Solano, E.

AU - Walker, H.

AU - White, G. J.

AU - Williams, J. P.

AU - Wright, G.

PY - 2010

Y1 - 2010

N2 - In an effort to simultaneously study the gas and dust components of the disc surrounding the young Herbig Ae star HD 169142, we present far-IR observations obtained with the PACS instrument onboard the Herschel Space Observatory. This work is part of the open time key program GASPS, which is aimed at studying the evolution of protoplanetary discs. To constrain the gas properties in the outer disc, we observed the star at several key gas-lines, including [OI] 63.2 and 145.5 μm, [CII] 157.7 μm, CO 72.8 and 90.2 μm, and o-H2O 78.7 and 179.5 μm. We only detect the [OI] 63.2 μm line in our spectra, and derive upper limits for the other lines. We complement our data set with PACS photometry and 12/13CO data obtained with the Submillimeter Array. Furthermore, we derive accurate stellar parameters from optical spectra and UV to mm photometry. We model the dust continuum with the 3D radiative transfer code MCFOST and use this model as an input to analyse the gas lines with the thermo-chemical code ProDiMo. Our dataset is consistent with a simple model in which the gas and dust are well-mixed in a disc with a continuous structure between 20 and 200 AU, but this is not a unique solution. Our modelling effort allows us to constrain the gas-to-dust mass ratio as well as the relative abundance of the PAHs in the disc by simultaneously fitting the lines of several species that originate in different regions. Our results are inconsistent with a gas-poor disc with a large UV excess; a gas mass of 5.0 ± 2.0 × 10-3 $M-{\odot}$ is still present in this disc, in agreement with earlier CO observations.

AB - In an effort to simultaneously study the gas and dust components of the disc surrounding the young Herbig Ae star HD 169142, we present far-IR observations obtained with the PACS instrument onboard the Herschel Space Observatory. This work is part of the open time key program GASPS, which is aimed at studying the evolution of protoplanetary discs. To constrain the gas properties in the outer disc, we observed the star at several key gas-lines, including [OI] 63.2 and 145.5 μm, [CII] 157.7 μm, CO 72.8 and 90.2 μm, and o-H2O 78.7 and 179.5 μm. We only detect the [OI] 63.2 μm line in our spectra, and derive upper limits for the other lines. We complement our data set with PACS photometry and 12/13CO data obtained with the Submillimeter Array. Furthermore, we derive accurate stellar parameters from optical spectra and UV to mm photometry. We model the dust continuum with the 3D radiative transfer code MCFOST and use this model as an input to analyse the gas lines with the thermo-chemical code ProDiMo. Our dataset is consistent with a simple model in which the gas and dust are well-mixed in a disc with a continuous structure between 20 and 200 AU, but this is not a unique solution. Our modelling effort allows us to constrain the gas-to-dust mass ratio as well as the relative abundance of the PAHs in the disc by simultaneously fitting the lines of several species that originate in different regions. Our results are inconsistent with a gas-poor disc with a large UV excess; a gas mass of 5.0 ± 2.0 × 10-3 $M-{\odot}$ is still present in this disc, in agreement with earlier CO observations.

KW - circumstellar matter

KW - infrared: planetary systems

KW - planetary systems

KW - protoplanetary disks

KW - stars: pre-main sequence

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