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

W. -F. Thi; G. Mathews; F. Menard; 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. Duchene; 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. Mendigutia; 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. Menard, 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. Duchene, 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. Mendigutia, 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

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Abstract

Planets are formed in disks around young stars. With an age of similar to 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 [OI] and [CII] as part of the open-time large program GASPS. We complement this with continuum data and ground-based (12) CO 3-2 and (CO)-C-13 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 [OI] line at 63 mu m. The other lines that were observed, [OI] at 145 mu m and [CII] at 157 mu m, are not detected. No extended emission has been found. Preliminary modeling of the photometric and line data assuming [(CO)-C-12]/[(CO)-C-13] = 69 suggests a dust mass for grains with radius < 1 mm of similar to 1.9 x 10(-4) M-circle dot (total solid mass of 3 x 10(-3) M-circle dot) and a gas mass of (0.5-5) x 10(-3) M-circle dot. The gas-to-dust mass may be lower than the standard interstellar value of 100.

Original language	English
Article number	L125
Pages (from-to)	-
Number of pages	6
Journal	Astronomy and Astrophysics
Volume	518
DOIs	https://doi.org/10.1051/0004-6361/201014578
Publication status	Published - 2010

Keywords

circumstellar disks
MAIN-SEQUENCE STARS
PROTOPLANETARY DISKS
YOUNG STARS
X-RAY
HYDRAE
EMISSION
SPECTRA
MODELS
ARRAY

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Thi, W. .-F., Mathews, G., Menard, 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., Duchene, 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, -. Article L125. https://doi.org/10.1051/0004-6361/201014578

@article{f2095c1476e44730a2859f95347a593f,

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 similar to 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 [OI] and [CII] as part of the open-time large program GASPS. We complement this with continuum data and ground-based (12) CO 3-2 and (CO)-C-13 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 [OI] line at 63 mu m. The other lines that were observed, [OI] at 145 mu m and [CII] at 157 mu m, are not detected. No extended emission has been found. Preliminary modeling of the photometric and line data assuming [(CO)-C-12]/[(CO)-C-13] = 69 suggests a dust mass for grains with radius < 1 mm of similar to 1.9 x 10(-4) M-circle dot (total solid mass of 3 x 10(-3) M-circle dot) and a gas mass of (0.5-5) x 10(-3) M-circle dot. The gas-to-dust mass may be lower than the standard interstellar value of 100.",

keywords = "circumstellar disks, MAIN-SEQUENCE STARS, PROTOPLANETARY DISKS, YOUNG STARS, X-RAY, HYDRAE, EMISSION, SPECTRA, MODELS, ARRAY",

author = "Thi, {W. -F.} and G. Mathews and F. Menard 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. Duchene 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. Mendigutia 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",

volume = "518",

pages = "--",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

}

Thi, W-F, Mathews, G, Menard, 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, Duchene, G, Augereau, J-C, 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, Mendigutia, 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, L125, pp. -. https://doi.org/10.1051/0004-6361/201014578

TY - JOUR

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

AU - Thi, W. -F.

AU - Mathews, G.

AU - Menard, 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 - Duchene, 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 - Mendigutia, 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 similar to 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 [OI] and [CII] as part of the open-time large program GASPS. We complement this with continuum data and ground-based (12) CO 3-2 and (CO)-C-13 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 [OI] line at 63 mu m. The other lines that were observed, [OI] at 145 mu m and [CII] at 157 mu m, are not detected. No extended emission has been found. Preliminary modeling of the photometric and line data assuming [(CO)-C-12]/[(CO)-C-13] = 69 suggests a dust mass for grains with radius < 1 mm of similar to 1.9 x 10(-4) M-circle dot (total solid mass of 3 x 10(-3) M-circle dot) and a gas mass of (0.5-5) x 10(-3) M-circle dot. 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 similar to 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 [OI] and [CII] as part of the open-time large program GASPS. We complement this with continuum data and ground-based (12) CO 3-2 and (CO)-C-13 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 [OI] line at 63 mu m. The other lines that were observed, [OI] at 145 mu m and [CII] at 157 mu m, are not detected. No extended emission has been found. Preliminary modeling of the photometric and line data assuming [(CO)-C-12]/[(CO)-C-13] = 69 suggests a dust mass for grains with radius < 1 mm of similar to 1.9 x 10(-4) M-circle dot (total solid mass of 3 x 10(-3) M-circle dot) and a gas mass of (0.5-5) x 10(-3) M-circle dot. The gas-to-dust mass may be lower than the standard interstellar value of 100.

KW - circumstellar disks

KW - MAIN-SEQUENCE STARS

KW - PROTOPLANETARY DISKS

KW - YOUNG STARS

KW - X-RAY

KW - HYDRAE

KW - EMISSION

KW - SPECTRA

KW - MODELS

KW - ARRAY

U2 - 10.1051/0004-6361/201014578

DO - 10.1051/0004-6361/201014578

M3 - Article

SN - 0004-6361

VL - 518

SP - -

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

M1 - L125

ER -

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

Abstract

Keywords

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