Herschel -PACS observation of the 10 Myr old T Tauri disk TW Hya: Constraining the disk gas mass

W. F. Thi; G. Mathews; F. Ménard; P. Woitke; G. Meeus; P. Riviere-Marichalar; C. Pinte; C. D. Howard; A. Roberge; G. Sandell; I. Pascucci; B. Riaz; C. A. Grady; W. R.F. Dent; I. Kamp; G. Duchêne; J. C. Augereau; E. Pantin; B. Vandenbussche; I. Tilling; J. P. Williams; C. Eiroa; D. Barrado; J. M. Alacid; S. Andrews; D. R. Ardila; G. Aresu; 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; I. Mendigutía; B. Montesinos; A. Mora; M. Morales-Calderon; H. Nomura; N. Phillips; L. Podio; D. R. Poelman; S. Ramsay; K. Rice; E. Solano; H. Walker; G. J. White; G. Wright

doi:10.1051/0004-6361/201014578

Herschel -PACS observation of the 10 Myr old T Tauri disk TW Hya: Constraining the disk gas mass

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

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

69 Scopus citations

Abstract

Planets are formed in disks around young stars. With an age of ∼10 Myr, TW Hya is one of the nearest T Tauri stars that is still surrounded by a relatively massive disk. In addition a large number of molecules has been found in the TW Hya disk, making TW Hya the perfect test case in a large survey of disks with Herschel-PACS to directly study their gaseous component. We aim to constrain the gas and dust mass of the circumstellar disk around TW Hya. We observed the fine-structure lines of [O i] and [C ii] as part of the open-time large program GASPS. We complement this with continuum data and ground-based ¹² CO 3-2 and ¹³CO 3-2 observations. We simultaneously model the continuum and the line fluxes with the 3D Monte-Carlo code MCFOST and the thermo-chemical code ProDiMo to derive the gas and dust masses. We detect the [O i] line at 63 μm. The other lines that were observed, [O i] at 145 μm and [C ii] at 157 μm, are not detected. No extended emission has been found. Preliminary modeling of the photometric and line data assuming [ ¹²CO] /[¹³CO] = 69 suggests a dust mass for grains with radius <1 mm of ∼1.9 × 10^-4 M⊙ (total solid mass of 3 × 10^-3 M⊙) and a gas mass of (0.5-5) × 10 ^-3 M⊙. The gas-to-dust mass may be lower than the standard interstellar value of 100.

Original language	English (US)
Article number	L125
Journal	Astronomy and astrophysics
Volume	518
Issue number	4
DOIs	https://doi.org/10.1051/0004-6361/201014578
State	Published - 2010
Externally published	Yes

Keywords

circumstellar disks

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1051/0004-6361/201014578

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Thi, W. F., Mathews, G., Ménard, F., Woitke, P., Meeus, G., Riviere-Marichalar, P., Pinte, C., Howard, C. D., Roberge, A., Sandell, G., Pascucci, I., Riaz, B., Grady, C. A., Dent, W. R. F., Kamp, I., Duchêne, G., Augereau, J. C., Pantin, E., Vandenbussche, B., ... Wright, G. (2010). Herschel -PACS observation of the 10 Myr old T Tauri disk TW Hya: Constraining the disk gas mass. Astronomy and astrophysics, 518(4), Article L125. https://doi.org/10.1051/0004-6361/201014578

Thi, WF, Mathews, G, Ménard, F, Woitke, P, Meeus, G, Riviere-Marichalar, P, Pinte, C, Howard, CD, Roberge, A, Sandell, G, Pascucci, I, Riaz, B, Grady, CA, Dent, WRF, Kamp, I, Duchêne, G, Augereau, JC, Pantin, E, Vandenbussche, B, Tilling, I, Williams, JP, Eiroa, C, Barrado, D, Alacid, JM, Andrews, S, Ardila, DR, Aresu, G, 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, Mendigutía, I, Montesinos, B, Mora, A, Morales-Calderon, M, Nomura, H, Phillips, N, Podio, L, Poelman, DR, Ramsay, S, Rice, K, Solano, E, Walker, H, White, GJ & Wright, G 2010, 'Herschel -PACS observation of the 10 Myr old T Tauri disk TW Hya: Constraining the disk gas mass', Astronomy and astrophysics, vol. 518, no. 4, L125. https://doi.org/10.1051/0004-6361/201014578

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title = "Herschel -PACS observation of the 10 Myr old T Tauri disk TW Hya: Constraining the disk gas mass",

abstract = "Planets are formed in disks around young stars. With an age of ∼10 Myr, TW Hya is one of the nearest T Tauri stars that is still surrounded by a relatively massive disk. In addition a large number of molecules has been found in the TW Hya disk, making TW Hya the perfect test case in a large survey of disks with Herschel-PACS to directly study their gaseous component. We aim to constrain the gas and dust mass of the circumstellar disk around TW Hya. We observed the fine-structure lines of [O i] and [C ii] as part of the open-time large program GASPS. We complement this with continuum data and ground-based 12 CO 3-2 and 13CO 3-2 observations. We simultaneously model the continuum and the line fluxes with the 3D Monte-Carlo code MCFOST and the thermo-chemical code ProDiMo to derive the gas and dust masses. We detect the [O i] line at 63 μm. The other lines that were observed, [O i] at 145 μm and [C ii] at 157 μm, are not detected. No extended emission has been found. Preliminary modeling of the photometric and line data assuming [ 12CO] /[13CO] = 69 suggests a dust mass for grains with radius <1 mm of ∼1.9 × 10-4 M⊙ (total solid mass of 3 × 10-3 M⊙) and a gas mass of (0.5-5) × 10 -3 M⊙. The gas-to-dust mass may be lower than the standard interstellar value of 100.",

keywords = "circumstellar disks",

author = "Thi, {W. F.} and G. Mathews and F. M{\'e}nard and P. Woitke and G. Meeus and P. Riviere-Marichalar and C. Pinte and Howard, {C. D.} and A. Roberge and G. Sandell and I. Pascucci and B. Riaz and Grady, {C. A.} and Dent, {W. R.F.} and I. Kamp and G. Duch{\^e}ne and Augereau, {J. C.} and E. Pantin and B. Vandenbussche and I. Tilling and Williams, {J. P.} and C. Eiroa and D. Barrado and Alacid, {J. M.} and S. Andrews and Ardila, {D. R.} and G. Aresu and S. Brittain and Ciardi, {D. R.} and W. Danchi and D. Fedele and {De Gregorio-Monsalvo}, I. and A. Heras and N. Huelamo and A. Krivov and J. Lebreton and R. Liseau and C. Martin-Zaidi and I. Mendigut{\'i}a and B. Montesinos and A. Mora and M. Morales-Calderon and H. Nomura and N. Phillips and L. Podio and Poelman, {D. R.} and S. Ramsay and K. Rice and E. Solano and H. Walker and White, {G. J.} and G. Wright",

year = "2010",

doi = "10.1051/0004-6361/201014578",

language = "English (US)",

volume = "518",

journal = "Astronomy and astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

number = "4",

}

TY - JOUR

T1 - Herschel -PACS observation of the 10 Myr old T Tauri disk TW Hya

T2 - Constraining the disk gas mass

AU - Thi, W. F.

AU - Mathews, G.

AU - Ménard, F.

AU - Woitke, P.

AU - Meeus, G.

AU - Riviere-Marichalar, P.

AU - Pinte, C.

AU - Howard, C. D.

AU - Roberge, A.

AU - Sandell, G.

AU - Pascucci, I.

AU - Riaz, B.

AU - Grady, C. A.

AU - Dent, W. R.F.

AU - Kamp, I.

AU - Duchêne, G.

AU - Augereau, J. C.

AU - Pantin, E.

AU - Vandenbussche, B.

AU - Tilling, I.

AU - Williams, J. P.

AU - Eiroa, C.

AU - Barrado, D.

AU - Alacid, J. M.

AU - Andrews, S.

AU - Ardila, D. R.

AU - Aresu, G.

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 - Mendigutía, I.

AU - Montesinos, B.

AU - Mora, A.

AU - Morales-Calderon, M.

AU - Nomura, H.

AU - Phillips, N.

AU - Podio, L.

AU - Poelman, D. R.

AU - Ramsay, S.

AU - Rice, K.

AU - Solano, E.

AU - Walker, H.

AU - White, G. J.

AU - Wright, G.

PY - 2010

Y1 - 2010

N2 - Planets are formed in disks around young stars. With an age of ∼10 Myr, TW Hya is one of the nearest T Tauri stars that is still surrounded by a relatively massive disk. In addition a large number of molecules has been found in the TW Hya disk, making TW Hya the perfect test case in a large survey of disks with Herschel-PACS to directly study their gaseous component. We aim to constrain the gas and dust mass of the circumstellar disk around TW Hya. We observed the fine-structure lines of [O i] and [C ii] as part of the open-time large program GASPS. We complement this with continuum data and ground-based 12 CO 3-2 and 13CO 3-2 observations. We simultaneously model the continuum and the line fluxes with the 3D Monte-Carlo code MCFOST and the thermo-chemical code ProDiMo to derive the gas and dust masses. We detect the [O i] line at 63 μm. The other lines that were observed, [O i] at 145 μm and [C ii] at 157 μm, are not detected. No extended emission has been found. Preliminary modeling of the photometric and line data assuming [ 12CO] /[13CO] = 69 suggests a dust mass for grains with radius <1 mm of ∼1.9 × 10-4 M⊙ (total solid mass of 3 × 10-3 M⊙) and a gas mass of (0.5-5) × 10 -3 M⊙. The gas-to-dust mass may be lower than the standard interstellar value of 100.

AB - Planets are formed in disks around young stars. With an age of ∼10 Myr, TW Hya is one of the nearest T Tauri stars that is still surrounded by a relatively massive disk. In addition a large number of molecules has been found in the TW Hya disk, making TW Hya the perfect test case in a large survey of disks with Herschel-PACS to directly study their gaseous component. We aim to constrain the gas and dust mass of the circumstellar disk around TW Hya. We observed the fine-structure lines of [O i] and [C ii] as part of the open-time large program GASPS. We complement this with continuum data and ground-based 12 CO 3-2 and 13CO 3-2 observations. We simultaneously model the continuum and the line fluxes with the 3D Monte-Carlo code MCFOST and the thermo-chemical code ProDiMo to derive the gas and dust masses. We detect the [O i] line at 63 μm. The other lines that were observed, [O i] at 145 μm and [C ii] at 157 μm, are not detected. No extended emission has been found. Preliminary modeling of the photometric and line data assuming [ 12CO] /[13CO] = 69 suggests a dust mass for grains with radius <1 mm of ∼1.9 × 10-4 M⊙ (total solid mass of 3 × 10-3 M⊙) and a gas mass of (0.5-5) × 10 -3 M⊙. The gas-to-dust mass may be lower than the standard interstellar value of 100.

KW - circumstellar disks

UR - http://www.scopus.com/inward/record.url?scp=77957810931&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77957810931&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/201014578

DO - 10.1051/0004-6361/201014578

M3 - Article

AN - SCOPUS:77957810931

SN - 0004-6361

VL - 518

JO - Astronomy and astrophysics

JF - Astronomy and astrophysics

IS - 4

M1 - L125

ER -

Herschel -PACS observation of the 10 Myr old T Tauri disk TW Hya: Constraining the disk gas mass

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Keywords

ASJC Scopus subject areas

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