Polarimetric imaging of large cavity structures in the pre-transitional protoplanetary disk around PDS 70: Observations of the disk

J. Hashimoto, R. Dong, T. Kudo, M. Honda, M. K. McClure, Z. Zhu, T. Muto, J. Wisniewski, L. Abe, W. Brandner, T. Brandt, J. Carson, S. Egner, M. Feldt, M. Fukagawa, M. Goto, C. A. Grady, Olivier Guyon, Y. Hayano, M. HayashiS. Hayashi, T. Henning, K. Hodapp, M. Ishii, M. Iye, M. Janson, R. Kandori, G. Knapp, N. Kusakabe, M. Kuzuhara, J. Kwon, T. Matsuo, S. Mayama, M. W. McElwain, S. Miyama, J. I. Morino, A. Moro-Martin, T. Nishimura, T. S. Pyo, G. Serabyn, T. Suenaga, H. Suto, R. Suzuki, Y. Takahashi, M. Takami, N. Takato, H. Terada, C. Thalmann, D. Tomono, E. L. Turner, M. Watanabe, T. Yamada, H. Takami, T. Usuda, M. Tamura

Research output: Contribution to journalArticle

84 Citations (Scopus)

Abstract

We present high-resolution H-band polarized intensity (FWHM = 0″.1: 14AU) and L′-band imaging data (FWHM = 0″.11: 15AU) of the circumstellar disk around the weak-lined T Tauri star PDS 70 in Centaurus at a radial distance of 28AU (0″.2) up to 210AU (1″.5). In both images, a giant inner gap is clearly resolved for the first time, and the radius of the gap is ∼70AU. Our data show that the geometric center of the disk shifts by ∼6AU toward the minor axis. We confirm that the brown dwarf companion candidate to the north of PDS 70 is a background star based on its proper motion. As a result of spectral energy distribution fitting by Monte Carlo radiative transfer modeling, we infer the existence of an optically thick inner disk at a fewAU. Combining our observations and modeling, we classify the disk of PDS 70 as a pre-transitional disk. Furthermore, based on the analysis of L′-band imaging data, we put an upper limit of ∼30 to ∼50 M J on the mass of companions within the gap. Taking into account the presence of the large and sharp gap, we suggest that the gap could be formed by dynamical interactions of sub-stellar companions or multiple unseen giant planets in the gap.

Original languageEnglish (US)
Article numberL19
JournalAstrophysical Journal Letters
Volume758
Issue number1
DOIs
StatePublished - Oct 10 2012
Externally publishedYes

Fingerprint

photothermal deflection spectroscopy
protoplanetary disks
cavity
cavities
ultrahigh frequencies
modeling
radiative transfer
planet
T Tauri stars
proper motion
spectral energy distribution
energy
planets
stars
radii
shift
high resolution

Keywords

  • planetary systems
  • polarization
  • protoplanetary disks
  • stars: individual (PDS 70)
  • stars: pre-main sequence

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Polarimetric imaging of large cavity structures in the pre-transitional protoplanetary disk around PDS 70 : Observations of the disk. / Hashimoto, J.; Dong, R.; Kudo, T.; Honda, M.; McClure, M. K.; Zhu, Z.; Muto, T.; Wisniewski, J.; Abe, L.; Brandner, W.; Brandt, T.; Carson, J.; Egner, S.; Feldt, M.; Fukagawa, M.; Goto, M.; Grady, C. A.; Guyon, Olivier; Hayano, Y.; Hayashi, M.; Hayashi, S.; Henning, T.; Hodapp, K.; Ishii, M.; Iye, M.; Janson, M.; Kandori, R.; Knapp, G.; Kusakabe, N.; Kuzuhara, M.; Kwon, J.; Matsuo, T.; Mayama, S.; McElwain, M. W.; Miyama, S.; Morino, J. I.; Moro-Martin, A.; Nishimura, T.; Pyo, T. S.; Serabyn, G.; Suenaga, T.; Suto, H.; Suzuki, R.; Takahashi, Y.; Takami, M.; Takato, N.; Terada, H.; Thalmann, C.; Tomono, D.; Turner, E. L.; Watanabe, M.; Yamada, T.; Takami, H.; Usuda, T.; Tamura, M.

In: Astrophysical Journal Letters, Vol. 758, No. 1, L19, 10.10.2012.

Research output: Contribution to journalArticle

Hashimoto, J, Dong, R, Kudo, T, Honda, M, McClure, MK, Zhu, Z, Muto, T, Wisniewski, J, Abe, L, Brandner, W, Brandt, T, Carson, J, Egner, S, Feldt, M, Fukagawa, M, Goto, M, Grady, CA, Guyon, O, Hayano, Y, Hayashi, M, Hayashi, S, Henning, T, Hodapp, K, Ishii, M, Iye, M, Janson, M, Kandori, R, Knapp, G, Kusakabe, N, Kuzuhara, M, Kwon, J, Matsuo, T, Mayama, S, McElwain, MW, Miyama, S, Morino, JI, Moro-Martin, A, Nishimura, T, Pyo, TS, Serabyn, G, Suenaga, T, Suto, H, Suzuki, R, Takahashi, Y, Takami, M, Takato, N, Terada, H, Thalmann, C, Tomono, D, Turner, EL, Watanabe, M, Yamada, T, Takami, H, Usuda, T & Tamura, M 2012, 'Polarimetric imaging of large cavity structures in the pre-transitional protoplanetary disk around PDS 70: Observations of the disk', Astrophysical Journal Letters, vol. 758, no. 1, L19. https://doi.org/10.1088/2041-8205/758/1/L19
Hashimoto, J. ; Dong, R. ; Kudo, T. ; Honda, M. ; McClure, M. K. ; Zhu, Z. ; Muto, T. ; Wisniewski, J. ; Abe, L. ; Brandner, W. ; Brandt, T. ; Carson, J. ; Egner, S. ; Feldt, M. ; Fukagawa, M. ; Goto, M. ; Grady, C. A. ; Guyon, Olivier ; Hayano, Y. ; Hayashi, M. ; Hayashi, S. ; Henning, T. ; Hodapp, K. ; Ishii, M. ; Iye, M. ; Janson, M. ; Kandori, R. ; Knapp, G. ; Kusakabe, N. ; Kuzuhara, M. ; Kwon, J. ; Matsuo, T. ; Mayama, S. ; McElwain, M. W. ; Miyama, S. ; Morino, J. I. ; Moro-Martin, A. ; Nishimura, T. ; Pyo, T. S. ; Serabyn, G. ; Suenaga, T. ; Suto, H. ; Suzuki, R. ; Takahashi, Y. ; Takami, M. ; Takato, N. ; Terada, H. ; Thalmann, C. ; Tomono, D. ; Turner, E. L. ; Watanabe, M. ; Yamada, T. ; Takami, H. ; Usuda, T. ; Tamura, M. / Polarimetric imaging of large cavity structures in the pre-transitional protoplanetary disk around PDS 70 : Observations of the disk. In: Astrophysical Journal Letters. 2012 ; Vol. 758, No. 1.
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title = "Polarimetric imaging of large cavity structures in the pre-transitional protoplanetary disk around PDS 70: Observations of the disk",
abstract = "We present high-resolution H-band polarized intensity (FWHM = 0″.1: 14AU) and L′-band imaging data (FWHM = 0″.11: 15AU) of the circumstellar disk around the weak-lined T Tauri star PDS 70 in Centaurus at a radial distance of 28AU (0″.2) up to 210AU (1″.5). In both images, a giant inner gap is clearly resolved for the first time, and the radius of the gap is ∼70AU. Our data show that the geometric center of the disk shifts by ∼6AU toward the minor axis. We confirm that the brown dwarf companion candidate to the north of PDS 70 is a background star based on its proper motion. As a result of spectral energy distribution fitting by Monte Carlo radiative transfer modeling, we infer the existence of an optically thick inner disk at a fewAU. Combining our observations and modeling, we classify the disk of PDS 70 as a pre-transitional disk. Furthermore, based on the analysis of L′-band imaging data, we put an upper limit of ∼30 to ∼50 M J on the mass of companions within the gap. Taking into account the presence of the large and sharp gap, we suggest that the gap could be formed by dynamical interactions of sub-stellar companions or multiple unseen giant planets in the gap.",
keywords = "planetary systems, polarization, protoplanetary disks, stars: individual (PDS 70), stars: pre-main sequence",
author = "J. Hashimoto and R. Dong and T. Kudo and M. Honda and McClure, {M. K.} and Z. Zhu and T. Muto and J. Wisniewski and L. Abe and W. Brandner and T. Brandt and J. Carson and S. Egner and M. Feldt and M. Fukagawa and M. Goto and Grady, {C. A.} and Olivier Guyon and Y. Hayano and M. Hayashi and S. Hayashi and T. Henning and K. Hodapp and M. Ishii and M. Iye and M. Janson and R. Kandori and G. Knapp and N. Kusakabe and M. Kuzuhara and J. Kwon and T. Matsuo and S. Mayama and McElwain, {M. W.} and S. Miyama and Morino, {J. I.} and A. Moro-Martin and T. Nishimura and Pyo, {T. S.} and G. Serabyn and T. Suenaga and H. Suto and R. Suzuki and Y. Takahashi and M. Takami and N. Takato and H. Terada and C. Thalmann and D. Tomono and Turner, {E. L.} and M. Watanabe and T. Yamada and H. Takami and T. Usuda and M. Tamura",
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TY - JOUR

T1 - Polarimetric imaging of large cavity structures in the pre-transitional protoplanetary disk around PDS 70

T2 - Observations of the disk

AU - Hashimoto, J.

AU - Dong, R.

AU - Kudo, T.

AU - Honda, M.

AU - McClure, M. K.

AU - Zhu, Z.

AU - Muto, T.

AU - Wisniewski, J.

AU - Abe, L.

AU - Brandner, W.

AU - Brandt, T.

AU - Carson, J.

AU - Egner, S.

AU - Feldt, M.

AU - Fukagawa, M.

AU - Goto, M.

AU - Grady, C. A.

AU - Guyon, Olivier

AU - Hayano, Y.

AU - Hayashi, M.

AU - Hayashi, S.

AU - Henning, T.

AU - Hodapp, K.

AU - Ishii, M.

AU - Iye, M.

AU - Janson, M.

AU - Kandori, R.

AU - Knapp, G.

AU - Kusakabe, N.

AU - Kuzuhara, M.

AU - Kwon, J.

AU - Matsuo, T.

AU - Mayama, S.

AU - McElwain, M. W.

AU - Miyama, S.

AU - Morino, J. I.

AU - Moro-Martin, A.

AU - Nishimura, T.

AU - Pyo, T. S.

AU - Serabyn, G.

AU - Suenaga, T.

AU - Suto, H.

AU - Suzuki, R.

AU - Takahashi, Y.

AU - Takami, M.

AU - Takato, N.

AU - Terada, H.

AU - Thalmann, C.

AU - Tomono, D.

AU - Turner, E. L.

AU - Watanabe, M.

AU - Yamada, T.

AU - Takami, H.

AU - Usuda, T.

AU - Tamura, M.

PY - 2012/10/10

Y1 - 2012/10/10

N2 - We present high-resolution H-band polarized intensity (FWHM = 0″.1: 14AU) and L′-band imaging data (FWHM = 0″.11: 15AU) of the circumstellar disk around the weak-lined T Tauri star PDS 70 in Centaurus at a radial distance of 28AU (0″.2) up to 210AU (1″.5). In both images, a giant inner gap is clearly resolved for the first time, and the radius of the gap is ∼70AU. Our data show that the geometric center of the disk shifts by ∼6AU toward the minor axis. We confirm that the brown dwarf companion candidate to the north of PDS 70 is a background star based on its proper motion. As a result of spectral energy distribution fitting by Monte Carlo radiative transfer modeling, we infer the existence of an optically thick inner disk at a fewAU. Combining our observations and modeling, we classify the disk of PDS 70 as a pre-transitional disk. Furthermore, based on the analysis of L′-band imaging data, we put an upper limit of ∼30 to ∼50 M J on the mass of companions within the gap. Taking into account the presence of the large and sharp gap, we suggest that the gap could be formed by dynamical interactions of sub-stellar companions or multiple unseen giant planets in the gap.

AB - We present high-resolution H-band polarized intensity (FWHM = 0″.1: 14AU) and L′-band imaging data (FWHM = 0″.11: 15AU) of the circumstellar disk around the weak-lined T Tauri star PDS 70 in Centaurus at a radial distance of 28AU (0″.2) up to 210AU (1″.5). In both images, a giant inner gap is clearly resolved for the first time, and the radius of the gap is ∼70AU. Our data show that the geometric center of the disk shifts by ∼6AU toward the minor axis. We confirm that the brown dwarf companion candidate to the north of PDS 70 is a background star based on its proper motion. As a result of spectral energy distribution fitting by Monte Carlo radiative transfer modeling, we infer the existence of an optically thick inner disk at a fewAU. Combining our observations and modeling, we classify the disk of PDS 70 as a pre-transitional disk. Furthermore, based on the analysis of L′-band imaging data, we put an upper limit of ∼30 to ∼50 M J on the mass of companions within the gap. Taking into account the presence of the large and sharp gap, we suggest that the gap could be formed by dynamical interactions of sub-stellar companions or multiple unseen giant planets in the gap.

KW - planetary systems

KW - polarization

KW - protoplanetary disks

KW - stars: individual (PDS 70)

KW - stars: pre-main sequence

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U2 - 10.1088/2041-8205/758/1/L19

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