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

被引：22

作者：

Uyama, Taichi ^{[1
]}

Hashimoto, Jun ^{[2
]}

Muto, Takayuki ^{[3
]}

Akiyama, Eiji ^{[4
]}

Dong, Ruobing ^{[5
]}

de Leon, Jerome ^{[1
]}

Sakon, Itsuki ^{[1
]}

Kudo, Tomoyuki ^{[6
]}

Kusakabe, Nobuhiko ^{[2
]}

Kuzuhara, Masayuki ^{[2
]}

Bonnefoy, Mickael ^{[7
]}

Abe, Lyu ^{[8
]}

Brandner, Wolfgang ^{[9
]}

Brandt, Timothy D. ^{[10
,11
]}

Carson, Joseph C. ^{[9
,12
]}

Currie, Thayne ^{[6
]}

Egner, Sebastian ^{[6
]}

Feldt, Markus ^{[9
]}

Fung, Jeffrey ^{[13
]}

Goto, Miwa ^{[14
]}

Grady, Carol A. ^{[15
,16
,17
]}

Guyon, Olivier ^{[2
,5
,6
]}

Hayano, Yutaka ^{[6
]}

Hayashi, Masahiko ^{[18
]}

Hayashi, Saeko S. ^{[6
]}

Henning, Thomas ^{[9
]}

Hodapp, Klaus W. ^{[19
]}

Ishii, Miki ^{[18
]}

Iye, Masanori ^{[18
]}

Janson, Markus ^{[20
]}

Kandori, Ryo ^{[18
]}

Knapp, Gillian R. ^{[20
]}

Kwon, Jungmi ^{[21
]}

Matsuo, Taro ^{[22
]}

Mayama, Satoshi ^{[23
]}

Mcelwain, Michael W. ^{[15
]}

Miyama, Shoken ^{[24
]}

Morino, Jun-Ichi ^{[18
]}

Moro-Martin, Amaya ^{[20
,25
]}

Nishimura, Tetsuo ^{[6
]}

Pyo, Tae-Soo ^{[6
]}

Serabyn, Eugene ^{[26
]}

Sitko, Michael L. ^{[27
,28
]}

Suenaga, Takuya ^{[29
]}

Suto, Hiroshi ^{[2
,18
]}

Suzuki, Ryuji ^{[18
]}

Takahashi, Yasuhiro H. ^{[1
,18
]}

Takami, Michihiro ^{[30
]}

Takato, Naruhisa ^{[6
]}

Terada, Hiroshi ^{[18
]}

机构：

[1] Univ Tokyo, Dept Astron, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan

[2] NINS, Astrobiol Ctr, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan

[3] Kogakuin Univ, Div Liberal Arts, Shinjuku Ku, 24-2 Nishi Shinjuku, Tokyo 1638677, Japan

[4] Natl Astron Observ Japan, Chile Observ, 2-21-2 Osawa, Mitaka, Tokyo 1818588, Japan

[5] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA

[6] Natl Inst Nat Sci, Natl Astron Observ Japan, Subaru Telescope, Hilo, HI 96720 USA

[7] Univ Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France

[8] Univ Nice Sophia Antipolis, Lab Lagrange UMR 7293, CNRS, Observ Cote dazur, 28 Ave Valrose, F-06108 Nice 2, France

[9] Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany

[10] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA USA

[11] Inst Adv Study, Dept Astrophys, Olden Lane, Princeton, NJ 08540 USA

[12] Coll Charleston, Dept Phys & Astron, 66 George St, Charleston, SC 29424 USA

[13] Univ Calif Berkeley, Dept Astron, 601 Campbell Hall, Berkeley, CA 94720 USA

[14] Ludwig Maximilians Univ Munchen, Univ Sternwarte Munchen, Scheinerstr 1, D-81679 Munich, Germany

[15] Goddard Space Flight Ctr, Exoplanets & Stellar Astrophys Lab, Code 667, Greenbelt, MD 20771 USA

[16] Eureka Sci, 2452 Delmer,Suite 100, Oakland, CA 96002 USA

[17] Goddard Ctr Astrobiol, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA

[18] Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan

[19] Univ Hawaii, Inst Astron, 640 N Aohoku Pl, Hilo, HI 96720 USA

[20] Princeton Univ, Dept Astrophys Sci, Peyton Hall,Ivy Lane, Princeton, NJ 08544 USA

[21] Inst Space & Astronaut Sci, JAXA, 3-1-1 Yoshinodai, Sagamihara, Kanagawa, Japan

[22] Osaka Univ, Grad Sch Sci, Dept Earth & Space Sci, 1-1 Machikaneyamacho, Toyonaka, Osaka 5600043, Japan

[23] Grad Univ Adv Studies, SOKENDAI, Hayama, Kanagawa 2400193, Japan

[24] Hiroshima Univ, 1-3-2 Kagamiyama, Higashihiroshima, Hiroshima 7398511, Japan

[25] CAB CSIC INTA, Dept Astrophys, E-28850 Madrid, Spain

[26] CALTECH, Jet Prop Lab, Pasadena, CA 17111 USA

[27] Univ Cincinnati, Dept Phys, Cincinnati, OH 45221 USA

[28] Ctr Extrasolar Planetary Syst, Space Sci Inst, 4750 Walnut St,Suite 205, Boulder, CO 80301 USA

[29] Grad Univ Adv Studies, Dept Astron Sci, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan

[30] Acad Sinica, Inst Astron & Astrophys, PBO 23-141, Taipei 10617, Taiwan

[31] Swiss Fed Inst Technol, Inst Astron, Swiss Fed Inst Technol, Wolfgang Pauli Str 27, CH-8093 Zurich, Switzerland

[32] Univ Tokyo, Kavli Inst Phys & Math Universe, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778568, Japan

[33] Hokkaido Univ, Dept Cosmosci, Kita Ku, Sapporo, Hokkaido 0600810, Japan

[34] Univ Oklahoma, H L Dodge Dept Phys & Astron, 440 W Brooks St, Norman, OK 73019 USA

[35] Tohoku Univ, Astron Inst, Aoba Ku, Sendai, Miyagi 9808578, Japan

来源：

ASTRONOMICAL JOURNAL | 2018年 / 156卷 / 02期

关键词：

planet-disk interactions; polarization; protoplanetary disks; SCATTERED-LIGHT; PROTOPLANETARY DISCS; EVOLUTIONARY MODELS; DENSITY WAVES; GIANT PLANET; DUST; STARS; DISKS; CONSTRAINTS; EXOPLANETS;

D O I：

10.3847/1538-3881/aacbd1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present H- and K-s-bands observations of the LkH alpha 330 disk with a multi-band detection of the large gap and spiral-like structures. The morphology of the outer disk (r similar to 0."3) at PA = 0 degrees-45 degrees and PA degrees = 180-290 degrees 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 degrees) 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 degrees and 230 degrees) 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.

引用

页数：12

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