CONSTRAINING the MOVEMENT of the SPIRAL FEATURES and the LOCATIONS of PLANETARY BODIES WITHIN the AB AUR SYSTEM

Jamie R. Lomax, John P. Wisniewski, Carol A. Grady, Michael W. McElwain, Jun Hashimoto, Tomoyuki Kudo, Nobuhiko Kusakabe, Yoshiko K. Okamoto, Misato Fukagawa, Lyu Abe, Wolfgang Brandner, Timothy D. Brandt, Joseph C. Carson, Thayne M. Currie, Sebastian Egner, Markus Feldt, Miwa Goto, Olivier Guyon, Yutaka Hayano, Masahiko HayashiSaeko S. Hayashi, Thomas Henning, Klaus W. Hodapp, Akio Inoue, Miki Ishii, Masanori Iye, Markus Janson, Ryo Kandori, Gillian R. Knapp, Masayuki Kuzuhara, Jungmi Kwon, Taro Matsuo, Satoshi Mayama, Shoken Miyama, Munetake Momose, Jun Ichi Morino, Amaya Moro-Martin, Tetsuo Nishimura, Tae Soo Pyo, Glenn H. Schneider, Eugene Serabyn, Michael L. Sitko, Takuya Suenaga, Hiroshi Suto, Ryuji Suzuki, Yasuhiro H. Takahashi, Michihiro Takami, Naruhisa Takato, Hiroshi Terada, Christian Thalmann, Daigo Tomono, Edwin L. Turner, Makoto Watanabe, Toru Yamada, Hideki Takami, Tomonori Usuda, Motohide Tamura

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We present a new analysis of multi-epoch, H-band, scattered light images of the AB Aur system. We use a Monte Carlo radiative transfer code to simultaneously model the system's spectral energy distribution (SED) and H-band polarized intensity (PI) imagery. We find that a disk-dominated model, as opposed to one that is envelope-dominated, can plausibly reproduce AB Aur's SED and near-IR imagery. This is consistent with previous modeling attempts presented in the literature and supports the idea that at least a subset of AB Aur's spirals originate within the disk. In light of this, we also analyzed the movement of spiral structures in multi-epoch H-band total light and PI imagery of the disk. We detect no significant rotation or change in spatial location of the spiral structures in these data, which span a 5.8-year baseline. If such structures are caused by disk-planet interactions, the lack of observed rotation constrains the location of the orbit of planetary perturbers to be >47 au.

Original languageEnglish
Article number2
JournalAstrophysical Journal
Volume828
Issue number1
DOIs
Publication statusPublished - 2016 Sep 1

Keywords

  • planet-disk interactions
  • planetary systems
  • protoplanetary disks
  • radiative transfer
  • stars: individual (AB Aur)
  • stars: pre-main sequence

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Lomax, J. R., Wisniewski, J. P., Grady, C. A., McElwain, M. W., Hashimoto, J., Kudo, T., Kusakabe, N., Okamoto, Y. K., Fukagawa, M., Abe, L., Brandner, W., Brandt, T. D., Carson, J. C., Currie, T. M., Egner, S., Feldt, M., Goto, M., Guyon, O., Hayano, Y., ... Tamura, M. (2016). CONSTRAINING the MOVEMENT of the SPIRAL FEATURES and the LOCATIONS of PLANETARY BODIES WITHIN the AB AUR SYSTEM. Astrophysical Journal, 828(1), [2]. https://doi.org/10.3847/0004-637X/828/1/2