Spiral arms in the asymmetrically illuminated disk of MWC 758 and constraints on giant planets

C. A. Grady, T. Muto, J. Hashimoto, M. Fukagawa, T. Currie, B. Biller, C. Thalmann, M. L. Sitko, R. Russell, J. Wisniewski, R. Dong, J. Kwon, S. Sai, J. Hornbeck, G. Schneider, D. Hines, A. Moro Martín, M. Feldt, Th Henning, J. U. PottM. Bonnefoy, J. Bouwman, S. Lacour, A. Mueller, A. Juhász, A. Crida, G. Chauvin, S. Andrews, D. Wilner, A. Kraus, S. Dahm, T. Robitaille, H. Jang-Condell, L. Abe, E. Akiyama, W. Brandner, T. Brandt, J. Carson, S. Egner, K. B. Follette, M. Goto, Olivier Guyon, Y. Hayano, M. Hayashi, S. Hayashi, K. Hodapp, M. Ishii, M. Iye, M. Janson, R. Kandori, G. Knapp, T. Kudo, N. Kusakabe, M. Kuzuhara, S. Mayama, M. McElwain, T. Matsuo, S. Miyama, J. I. Morino, T. Nishimura, T. S. Pyo, G. Serabyn, H. Suto, R. Suzuki, M. Takami, N. Takato, H. Terada, D. Tomono, E. Turner, M. Watanabe, T. Yamada, H. Takami, T. Usuda, M. Tamura

Research output: Contribution to journalArticle

139 Citations (Scopus)

Abstract

We present the first near-IR scattered light detection of the transitional disk associated with the Herbig Ae star MWC 758 using data obtained as part of the Strategic Exploration of Exoplanets and Disks with Subaru, and 1.1 μm Hubble Space Telescope/NICMOS data. While submillimeter studies suggested there is a dust-depleted cavity with r = 0.″35, we find scattered light as close as 0.″1 (20-28 AU) from the star, with no visible cavity at H, K′, or Ks . We find two small-scaled spiral structures that asymmetrically shadow the outer disk. We model one of the spirals using spiral density wave theory, and derive a disk aspect ratio of h ∼ 0.18, indicating a dynamically warm disk. If the spiral pattern is excited by a perturber, we estimate its mass to be 5+3-4 MJ , in the range where planet filtration models predict accretion continuing onto the star. Using a combination of non-redundant aperture masking data at L′ and angular differential imaging with Locally Optimized Combination of Images at K′ and Ks , we exclude stellar or massive brown dwarf companions within 300 mas of the Herbig Ae star, and all but planetary mass companions exterior to 0.″5. We reach 5σ contrasts limiting companions to planetary masses, 3-4 MJ at 1.″0 and 2 M J at 1.″55, using the COND models. Collectively, these data strengthen the case for MWC 758 already being a young planetary system.

Original languageEnglish (US)
Article number48
JournalAstrophysical Journal
Volume762
Issue number1
DOIs
StatePublished - Jan 1 2013
Externally publishedYes

Fingerprint

planets
planet
planetary mass
stars
cavity
cavities
planetary systems
extrasolar planets
masking
Hubble Space Telescope
accretion
aspect ratio
dust
apertures
estimates

Keywords

  • circumstellar matter
  • instrumentation: high angular resolution
  • polarization
  • protoplanetary disks
  • stars: individual (MWC 758)
  • waves

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Grady, C. A., Muto, T., Hashimoto, J., Fukagawa, M., Currie, T., Biller, B., ... Tamura, M. (2013). Spiral arms in the asymmetrically illuminated disk of MWC 758 and constraints on giant planets. Astrophysical Journal, 762(1), [48]. https://doi.org/10.1088/0004-637X/762/1/48

Spiral arms in the asymmetrically illuminated disk of MWC 758 and constraints on giant planets. / Grady, C. A.; Muto, T.; Hashimoto, J.; Fukagawa, M.; Currie, T.; Biller, B.; Thalmann, C.; Sitko, M. L.; Russell, R.; Wisniewski, J.; Dong, R.; Kwon, J.; Sai, S.; Hornbeck, J.; Schneider, G.; Hines, D.; Martín, A. Moro; Feldt, M.; Henning, Th; Pott, J. U.; Bonnefoy, M.; Bouwman, J.; Lacour, S.; Mueller, A.; Juhász, A.; Crida, A.; Chauvin, G.; Andrews, S.; Wilner, D.; Kraus, A.; Dahm, S.; Robitaille, T.; Jang-Condell, H.; Abe, L.; Akiyama, E.; Brandner, W.; Brandt, T.; Carson, J.; Egner, S.; Follette, K. B.; Goto, M.; Guyon, Olivier; Hayano, Y.; Hayashi, M.; Hayashi, S.; Hodapp, K.; Ishii, M.; Iye, M.; Janson, M.; Kandori, R.; Knapp, G.; Kudo, T.; Kusakabe, N.; Kuzuhara, M.; Mayama, S.; McElwain, M.; Matsuo, T.; Miyama, S.; Morino, J. I.; Nishimura, T.; Pyo, T. S.; Serabyn, G.; Suto, H.; Suzuki, R.; Takami, M.; Takato, N.; Terada, H.; Tomono, D.; Turner, E.; Watanabe, M.; Yamada, T.; Takami, H.; Usuda, T.; Tamura, M.

In: Astrophysical Journal, Vol. 762, No. 1, 48, 01.01.2013.

Research output: Contribution to journalArticle

Grady, CA, Muto, T, Hashimoto, J, Fukagawa, M, Currie, T, Biller, B, Thalmann, C, Sitko, ML, Russell, R, Wisniewski, J, Dong, R, Kwon, J, Sai, S, Hornbeck, J, Schneider, G, Hines, D, Martín, AM, Feldt, M, Henning, T, Pott, JU, Bonnefoy, M, Bouwman, J, Lacour, S, Mueller, A, Juhász, A, Crida, A, Chauvin, G, Andrews, S, Wilner, D, Kraus, A, Dahm, S, Robitaille, T, Jang-Condell, H, Abe, L, Akiyama, E, Brandner, W, Brandt, T, Carson, J, Egner, S, Follette, KB, Goto, M, Guyon, O, Hayano, Y, Hayashi, M, Hayashi, S, Hodapp, K, Ishii, M, Iye, M, Janson, M, Kandori, R, Knapp, G, Kudo, T, Kusakabe, N, Kuzuhara, M, Mayama, S, McElwain, M, Matsuo, T, Miyama, S, Morino, JI, Nishimura, T, Pyo, TS, Serabyn, G, Suto, H, Suzuki, R, Takami, M, Takato, N, Terada, H, Tomono, D, Turner, E, Watanabe, M, Yamada, T, Takami, H, Usuda, T & Tamura, M 2013, 'Spiral arms in the asymmetrically illuminated disk of MWC 758 and constraints on giant planets', Astrophysical Journal, vol. 762, no. 1, 48. https://doi.org/10.1088/0004-637X/762/1/48
Grady, C. A. ; Muto, T. ; Hashimoto, J. ; Fukagawa, M. ; Currie, T. ; Biller, B. ; Thalmann, C. ; Sitko, M. L. ; Russell, R. ; Wisniewski, J. ; Dong, R. ; Kwon, J. ; Sai, S. ; Hornbeck, J. ; Schneider, G. ; Hines, D. ; Martín, A. Moro ; Feldt, M. ; Henning, Th ; Pott, J. U. ; Bonnefoy, M. ; Bouwman, J. ; Lacour, S. ; Mueller, A. ; Juhász, A. ; Crida, A. ; Chauvin, G. ; Andrews, S. ; Wilner, D. ; Kraus, A. ; Dahm, S. ; Robitaille, T. ; Jang-Condell, H. ; Abe, L. ; Akiyama, E. ; Brandner, W. ; Brandt, T. ; Carson, J. ; Egner, S. ; Follette, K. B. ; Goto, M. ; Guyon, Olivier ; Hayano, Y. ; Hayashi, M. ; Hayashi, S. ; Hodapp, K. ; Ishii, M. ; Iye, M. ; Janson, M. ; Kandori, R. ; Knapp, G. ; Kudo, T. ; Kusakabe, N. ; Kuzuhara, M. ; Mayama, S. ; McElwain, M. ; Matsuo, T. ; Miyama, S. ; Morino, J. I. ; Nishimura, T. ; Pyo, T. S. ; Serabyn, G. ; Suto, H. ; Suzuki, R. ; Takami, M. ; Takato, N. ; Terada, H. ; Tomono, D. ; Turner, E. ; Watanabe, M. ; Yamada, T. ; Takami, H. ; Usuda, T. ; Tamura, M. / Spiral arms in the asymmetrically illuminated disk of MWC 758 and constraints on giant planets. In: Astrophysical Journal. 2013 ; Vol. 762, No. 1.
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TY - JOUR

T1 - Spiral arms in the asymmetrically illuminated disk of MWC 758 and constraints on giant planets

AU - Grady, C. A.

AU - Muto, T.

AU - Hashimoto, J.

AU - Fukagawa, M.

AU - Currie, T.

AU - Biller, B.

AU - Thalmann, C.

AU - Sitko, M. L.

AU - Russell, R.

AU - Wisniewski, J.

AU - Dong, R.

AU - Kwon, J.

AU - Sai, S.

AU - Hornbeck, J.

AU - Schneider, G.

AU - Hines, D.

AU - Martín, A. Moro

AU - Feldt, M.

AU - Henning, Th

AU - Pott, J. U.

AU - Bonnefoy, M.

AU - Bouwman, J.

AU - Lacour, S.

AU - Mueller, A.

AU - Juhász, A.

AU - Crida, A.

AU - Chauvin, G.

AU - Andrews, S.

AU - Wilner, D.

AU - Kraus, A.

AU - Dahm, S.

AU - Robitaille, T.

AU - Jang-Condell, H.

AU - Abe, L.

AU - Akiyama, E.

AU - Brandner, W.

AU - Brandt, T.

AU - Carson, J.

AU - Egner, S.

AU - Follette, K. B.

AU - Goto, M.

AU - Guyon, Olivier

AU - Hayano, Y.

AU - Hayashi, M.

AU - Hayashi, S.

AU - Hodapp, K.

AU - Ishii, M.

AU - Iye, M.

AU - Janson, M.

AU - Kandori, R.

AU - Knapp, G.

AU - Kudo, T.

AU - Kusakabe, N.

AU - Kuzuhara, M.

AU - Mayama, S.

AU - McElwain, M.

AU - Matsuo, T.

AU - Miyama, S.

AU - Morino, J. I.

AU - Nishimura, T.

AU - Pyo, T. S.

AU - Serabyn, G.

AU - Suto, H.

AU - Suzuki, R.

AU - Takami, M.

AU - Takato, N.

AU - Terada, H.

AU - Tomono, D.

AU - Turner, E.

AU - Watanabe, M.

AU - Yamada, T.

AU - Takami, H.

AU - Usuda, T.

AU - Tamura, M.

PY - 2013/1/1

Y1 - 2013/1/1

N2 - We present the first near-IR scattered light detection of the transitional disk associated with the Herbig Ae star MWC 758 using data obtained as part of the Strategic Exploration of Exoplanets and Disks with Subaru, and 1.1 μm Hubble Space Telescope/NICMOS data. While submillimeter studies suggested there is a dust-depleted cavity with r = 0.″35, we find scattered light as close as 0.″1 (20-28 AU) from the star, with no visible cavity at H, K′, or Ks . We find two small-scaled spiral structures that asymmetrically shadow the outer disk. We model one of the spirals using spiral density wave theory, and derive a disk aspect ratio of h ∼ 0.18, indicating a dynamically warm disk. If the spiral pattern is excited by a perturber, we estimate its mass to be 5+3-4 MJ , in the range where planet filtration models predict accretion continuing onto the star. Using a combination of non-redundant aperture masking data at L′ and angular differential imaging with Locally Optimized Combination of Images at K′ and Ks , we exclude stellar or massive brown dwarf companions within 300 mas of the Herbig Ae star, and all but planetary mass companions exterior to 0.″5. We reach 5σ contrasts limiting companions to planetary masses, 3-4 MJ at 1.″0 and 2 M J at 1.″55, using the COND models. Collectively, these data strengthen the case for MWC 758 already being a young planetary system.

AB - We present the first near-IR scattered light detection of the transitional disk associated with the Herbig Ae star MWC 758 using data obtained as part of the Strategic Exploration of Exoplanets and Disks with Subaru, and 1.1 μm Hubble Space Telescope/NICMOS data. While submillimeter studies suggested there is a dust-depleted cavity with r = 0.″35, we find scattered light as close as 0.″1 (20-28 AU) from the star, with no visible cavity at H, K′, or Ks . We find two small-scaled spiral structures that asymmetrically shadow the outer disk. We model one of the spirals using spiral density wave theory, and derive a disk aspect ratio of h ∼ 0.18, indicating a dynamically warm disk. If the spiral pattern is excited by a perturber, we estimate its mass to be 5+3-4 MJ , in the range where planet filtration models predict accretion continuing onto the star. Using a combination of non-redundant aperture masking data at L′ and angular differential imaging with Locally Optimized Combination of Images at K′ and Ks , we exclude stellar or massive brown dwarf companions within 300 mas of the Herbig Ae star, and all but planetary mass companions exterior to 0.″5. We reach 5σ contrasts limiting companions to planetary masses, 3-4 MJ at 1.″0 and 2 M J at 1.″55, using the COND models. Collectively, these data strengthen the case for MWC 758 already being a young planetary system.

KW - circumstellar matter

KW - instrumentation: high angular resolution

KW - polarization

KW - protoplanetary disks

KW - stars: individual (MWC 758)

KW - waves

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