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 Goto; Carol 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

doi:10.3847/1538-3881/aacbd1

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

Astrophysical Sciences

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

23 Scopus citations

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 language	English (US)
Article number	63
Journal	Astronomical Journal
Volume	156
Issue number	2
DOIs	https://doi.org/10.3847/1538-3881/aacbd1
State	Published - Aug 2018

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

planet-disk interactions
polarization
protoplanetary disks

Access to Document

10.3847/1538-3881/aacbd1

Cite this

Uyama, T., Hashimoto, J., Muto, T., Akiyama, E., Dong, R., Leon, J. D., Sakon, I., Kudo, T., Kusakabe, N., Kuzuhara, M., Bonnefoy, M., Abe, L., Brandner, W., Brandt, T. D., Carson, J. C., Currie, T., Egner, S., Feldt, M., Fung, J., ... 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), Article 63. https://doi.org/10.3847/1538-3881/aacbd1

@article{4bd974b6c17745afab844abbd982cd2c,

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

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.",

keywords = "planet-disk interactions, polarization, protoplanetary disks",

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

year = "2018",

month = aug,

doi = "10.3847/1538-3881/aacbd1",

language = "English (US)",

volume = "156",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "American Astronomical Society",

number = "2",

}

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

TY - JOUR

T1 - Subaru/HiCIAO HK s Imaging of LKHa 330

T2 - Multi-band Detection of the Gap and Spiral-like Structures

AU - Uyama, Taichi

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

AU - Bonnefoy, Mickael

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

AU - Knapp, Gillian R.

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

AU - Yamada, Toru

AU - Yang, Yi

AU - Takami, Hideki

AU - Usuda, Tomonori

AU - Tamura, Motohide

PY - 2018/8

Y1 - 2018/8

N2 - 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.

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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U2 - 10.3847/1538-3881/aacbd1

DO - 10.3847/1538-3881/aacbd1

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SN - 0004-6256

VL - 156

JO - Astronomical Journal

JF - Astronomical Journal

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