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

MPS-Authors

Uyama,  Taichi
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Hashimoto,  Jun
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Muto,  Takayuki
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Akiyama,  Eiji
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Dong,  Ruobing
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

de Leon,  Jerome
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Sakon,  Itsuki
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kudo,  Tomoyuki
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kusakabe,  Nobuhiko
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kuzuhara,  Masayuki
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Bonnefoy,  Mickael
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Abe,  Lyu
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Brandner,  Wolfgang
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Brandt,  Timothy D.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Carson,  Joseph C.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Currie,  Thayne
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Egner,  Sebastian
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Feldt,  Markus
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Fung,  Jeffrey
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Goto,  Miwa
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Grady,  Carol A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Guyon,  Olivier
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Hayano,  Yutaka
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Hayashi,  Masahiko
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Hayashi,  Saeko S.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Henning,  Thomas
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Hodapp,  Klaus W.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Ishii,  Miki
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Iye,  Masanori
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Janson,  Markus
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kandori,  Ryo
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Knapp,  Gillian R.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kwon,  Jungmi
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Matsuo,  Taro
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Mayama,  Satoshi
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Mcelwain,  Michael W.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Miyama,  Shoken
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Morino,  Jun-Ichi
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Moro-Martin,  Amaya
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Nishimura,  Tetsuo
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Pyo,  Tae-Soo
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Serabyn,  Eugene
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Sitko,  Michael L.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Suenaga,  Takuya
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Suto,  Hiroshi
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Suzuki,  Ryuji
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Takahashi,  Yasuhiro H.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Takami,  Michihiro
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Takato,  Naruhisa
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Terada,  Hiroshi
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Thalmann,  Christian
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Turner,  Edwin L.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Watanabe,  Makoto
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Wisniewski,  John
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Yamada,  Toru
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Yang,  Yi
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Takami,  Hideki
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Usuda,  Tomonori
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Tamura,  Motohide
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

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Citation

Uyama, T., Hashimoto, J., Muto, T., Akiyama, E., Dong, R., de Leon, J., et al. (2018). Subaru/HiCIAO HK s Imaging of LKHa 330: Multi-band Detection of the Gap and Spiral-like Structures. The Astronomical Journal, 156.


Cite as: https://hdl.handle.net/21.11116/0000-0005-CA8C-A
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.