Subaru/HiCIAO HK s Imaging of LKHa 330: Multi-band Detection of the Gap and Spiral-like Structures

Taichi Uyama, Jun Hashimoto, Takayuki Muto, Eiji Akiyama, Ruobing Dong, Jerome De Leon, Itsuki Sakon, Tomoyuki Kudo, Nobuhiko Kusakabe, Masayuki Kuzuhara, Mickael Bonnefoy, Lyu Abe, Wolfgang Brandner, Timothy D. Brandt, Joseph C. Carson, Thayne Currie, Sebastian Egner, Markus Feldt, Jeffrey Fung, Miwa GotoCarol A. Grady, Olivier Guyon, Yutaka Hayano, Masahiko Hayashi, Saeko S. Hayashi, Thomas Henning, Klaus W. Hodapp, Miki Ishii, Masanori Iye, Markus Janson, Ryo Kandori, Gillian R. Knapp, Jungmi Kwon, Taro Matsuo, Satoshi Mayama, Michael W. McElwain, Shoken Miyama, Jun Ichi Morino, Amaya Moro-Martin, Tetsuo Nishimura, Tae Soo Pyo, Eugene Serabyn, Michael L. Sitko, Takuya Suenaga, Hiroshi Suto, Ryuji Suzuki, Yasuhiro H. Takahashi, Michihiro Takami, Naruhisa Takato, Hiroshi Terada, Christian Thalmann, Edwin L. Turner, Makoto Watanabe, John Wisniewski, Toru Yamada, Yi Yang, Hideki Takami, Tomonori Usuda, Motohide Tamura

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We present H- and K s-bands observations of the LkHα 330 disk with a multi-band detection of the large gap and spiral-like structures. The morphology of the outer disk (r ∼ 0.″3) at PA = 0°-45° and PA = 180-290° is likely density wave-induced spirals, and comparison between our observational results and simulations suggests a planet formation. We have also investigated the azimuthal profiles at the ring and the outer-disk regions as well as radial profiles in the directions of the spiral-like structures and semimajor axis. Azimuthal analysis shows a large variety in wavelength and implies that the disk has non-axisymmetric dust distributions. The radial profiles in the major-axis direction (PA = 271°) suggest that the outer region (r ≥ 0.″25) may be influenced by shadows of the inner region of the disk. The spiral-like directions (PA = 10° and 230°) show different radial profiles, which suggests that the surfaces of the spiral-like structures are highly flared and/or have different dust properties. Finally, a color map of the disk shows a lack of an outer eastern region in the H-band disk, which may hint at the presence of an inner object that casts a directional shadow onto the disk.

Original languageEnglish (US)
Article number63
JournalAstronomical Journal
Volume156
Issue number2
DOIs
StatePublished - Aug 1 2018

Fingerprint

dust
profiles
planet
wavelength
detection
simulation
casts
planets
color
rings
wavelengths
distribution
analysis
comparison

Keywords

  • planet-disk interactions
  • polarization
  • protoplanetary disks

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Uyama, T., Hashimoto, J., Muto, T., Akiyama, E., Dong, R., Leon, J. D., ... Tamura, M. (2018). Subaru/HiCIAO HK s Imaging of LKHa 330: Multi-band Detection of the Gap and Spiral-like Structures. Astronomical Journal, 156(2), [63]. https://doi.org/10.3847/1538-3881/aacbd1

Subaru/HiCIAO HK s Imaging of LKHa 330 : Multi-band Detection of the Gap and Spiral-like Structures. / Uyama, Taichi; Hashimoto, Jun; Muto, Takayuki; Akiyama, Eiji; Dong, Ruobing; Leon, Jerome De; Sakon, Itsuki; Kudo, Tomoyuki; Kusakabe, Nobuhiko; Kuzuhara, Masayuki; Bonnefoy, Mickael; Abe, Lyu; Brandner, Wolfgang; Brandt, Timothy D.; Carson, Joseph C.; Currie, Thayne; Egner, Sebastian; Feldt, Markus; Fung, Jeffrey; Goto, Miwa; Grady, Carol A.; Guyon, Olivier; Hayano, Yutaka; Hayashi, Masahiko; Hayashi, Saeko S.; Henning, Thomas; Hodapp, Klaus W.; Ishii, Miki; Iye, Masanori; Janson, Markus; Kandori, Ryo; Knapp, Gillian R.; Kwon, Jungmi; Matsuo, Taro; Mayama, Satoshi; McElwain, Michael W.; Miyama, Shoken; Morino, Jun Ichi; Moro-Martin, Amaya; Nishimura, Tetsuo; Pyo, Tae Soo; Serabyn, Eugene; Sitko, Michael L.; Suenaga, Takuya; Suto, Hiroshi; Suzuki, Ryuji; Takahashi, Yasuhiro H.; Takami, Michihiro; Takato, Naruhisa; Terada, Hiroshi; Thalmann, Christian; Turner, Edwin L.; Watanabe, Makoto; Wisniewski, John; Yamada, Toru; Yang, Yi; Takami, Hideki; Usuda, Tomonori; Tamura, Motohide.

In: Astronomical Journal, Vol. 156, No. 2, 63, 01.08.2018.

Research output: Contribution to journalArticle

Uyama, T, Hashimoto, J, Muto, T, Akiyama, E, Dong, R, Leon, JD, Sakon, I, Kudo, T, Kusakabe, N, Kuzuhara, M, Bonnefoy, M, Abe, L, Brandner, W, Brandt, TD, Carson, JC, Currie, T, Egner, S, Feldt, M, Fung, J, Goto, M, Grady, CA, Guyon, O, Hayano, Y, Hayashi, M, Hayashi, SS, Henning, T, Hodapp, KW, Ishii, M, Iye, M, Janson, M, Kandori, R, Knapp, GR, Kwon, J, Matsuo, T, Mayama, S, McElwain, MW, Miyama, S, Morino, JI, Moro-Martin, A, Nishimura, T, Pyo, TS, Serabyn, E, Sitko, ML, Suenaga, T, Suto, H, Suzuki, R, Takahashi, YH, Takami, M, Takato, N, Terada, H, Thalmann, C, Turner, EL, Watanabe, M, Wisniewski, J, Yamada, T, Yang, Y, Takami, H, Usuda, T & Tamura, M 2018, 'Subaru/HiCIAO HK s Imaging of LKHa 330: Multi-band Detection of the Gap and Spiral-like Structures', Astronomical Journal, vol. 156, no. 2, 63. https://doi.org/10.3847/1538-3881/aacbd1
Uyama, Taichi ; Hashimoto, Jun ; Muto, Takayuki ; Akiyama, Eiji ; Dong, Ruobing ; Leon, Jerome De ; Sakon, Itsuki ; Kudo, Tomoyuki ; Kusakabe, Nobuhiko ; Kuzuhara, Masayuki ; Bonnefoy, Mickael ; Abe, Lyu ; Brandner, Wolfgang ; Brandt, Timothy D. ; Carson, Joseph C. ; Currie, Thayne ; Egner, Sebastian ; Feldt, Markus ; Fung, Jeffrey ; Goto, Miwa ; Grady, Carol A. ; Guyon, Olivier ; Hayano, Yutaka ; Hayashi, Masahiko ; Hayashi, Saeko S. ; Henning, Thomas ; Hodapp, Klaus W. ; Ishii, Miki ; Iye, Masanori ; Janson, Markus ; Kandori, Ryo ; Knapp, Gillian R. ; Kwon, Jungmi ; Matsuo, Taro ; Mayama, Satoshi ; McElwain, Michael W. ; Miyama, Shoken ; Morino, Jun Ichi ; Moro-Martin, Amaya ; Nishimura, Tetsuo ; Pyo, Tae Soo ; Serabyn, Eugene ; Sitko, Michael L. ; Suenaga, Takuya ; Suto, Hiroshi ; Suzuki, Ryuji ; Takahashi, Yasuhiro H. ; Takami, Michihiro ; Takato, Naruhisa ; Terada, Hiroshi ; Thalmann, Christian ; Turner, Edwin L. ; Watanabe, Makoto ; Wisniewski, John ; Yamada, Toru ; Yang, Yi ; Takami, Hideki ; Usuda, Tomonori ; Tamura, Motohide. / Subaru/HiCIAO HK s Imaging of LKHa 330 : Multi-band Detection of the Gap and Spiral-like Structures. In: Astronomical Journal. 2018 ; Vol. 156, No. 2.
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abstract = "We present H- and K s-bands observations of the LkHα 330 disk with a multi-band detection of the large gap and spiral-like structures. The morphology of the outer disk (r ∼ 0.″3) at PA = 0°-45° and PA = 180-290° is likely density wave-induced spirals, and comparison between our observational results and simulations suggests a planet formation. We have also investigated the azimuthal profiles at the ring and the outer-disk regions as well as radial profiles in the directions of the spiral-like structures and semimajor axis. Azimuthal analysis shows a large variety in wavelength and implies that the disk has non-axisymmetric dust distributions. The radial profiles in the major-axis direction (PA = 271°) suggest that the outer region (r ≥ 0.″25) may be influenced by shadows of the inner region of the disk. The spiral-like directions (PA = 10° and 230°) show different radial profiles, which suggests that the surfaces of the spiral-like structures are highly flared and/or have different dust properties. Finally, a color map of the disk shows a lack of an outer eastern region in the H-band disk, which may hint at the presence of an inner object that casts a directional shadow onto the disk.",
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AU - Hashimoto, Jun

AU - Muto, Takayuki

AU - Akiyama, Eiji

AU - Dong, Ruobing

AU - Leon, Jerome De

AU - Sakon, Itsuki

AU - Kudo, Tomoyuki

AU - Kusakabe, Nobuhiko

AU - Kuzuhara, Masayuki

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AU - Abe, Lyu

AU - Brandner, Wolfgang

AU - Brandt, Timothy D.

AU - Carson, Joseph C.

AU - Currie, Thayne

AU - Egner, Sebastian

AU - Feldt, Markus

AU - Fung, Jeffrey

AU - Goto, Miwa

AU - Grady, Carol A.

AU - Guyon, Olivier

AU - Hayano, Yutaka

AU - Hayashi, Masahiko

AU - Hayashi, Saeko S.

AU - Henning, Thomas

AU - Hodapp, Klaus W.

AU - Ishii, Miki

AU - Iye, Masanori

AU - Janson, Markus

AU - Kandori, Ryo

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AU - Kwon, Jungmi

AU - Matsuo, Taro

AU - Mayama, Satoshi

AU - McElwain, Michael W.

AU - Miyama, Shoken

AU - Morino, Jun Ichi

AU - Moro-Martin, Amaya

AU - Nishimura, Tetsuo

AU - Pyo, Tae Soo

AU - Serabyn, Eugene

AU - Sitko, Michael L.

AU - Suenaga, Takuya

AU - Suto, Hiroshi

AU - Suzuki, Ryuji

AU - Takahashi, Yasuhiro H.

AU - Takami, Michihiro

AU - Takato, Naruhisa

AU - Terada, Hiroshi

AU - Thalmann, Christian

AU - Turner, Edwin L.

AU - Watanabe, Makoto

AU - Wisniewski, John

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AU - Yang, Yi

AU - Takami, Hideki

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AU - Tamura, Motohide

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AB - We present H- and K s-bands observations of the LkHα 330 disk with a multi-band detection of the large gap and spiral-like structures. The morphology of the outer disk (r ∼ 0.″3) at PA = 0°-45° and PA = 180-290° is likely density wave-induced spirals, and comparison between our observational results and simulations suggests a planet formation. We have also investigated the azimuthal profiles at the ring and the outer-disk regions as well as radial profiles in the directions of the spiral-like structures and semimajor axis. Azimuthal analysis shows a large variety in wavelength and implies that the disk has non-axisymmetric dust distributions. The radial profiles in the major-axis direction (PA = 271°) suggest that the outer region (r ≥ 0.″25) may be influenced by shadows of the inner region of the disk. The spiral-like directions (PA = 10° and 230°) show different radial profiles, which suggests that the surfaces of the spiral-like structures are highly flared and/or have different dust properties. Finally, a color map of the disk shows a lack of an outer eastern region in the H-band disk, which may hint at the presence of an inner object that casts a directional shadow onto the disk.

KW - planet-disk interactions

KW - polarization

KW - protoplanetary disks

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