CONSTRAINING THE MOVEMENT OF THE SPIRAL FEATURES AND THE LOCATIONS OF PLANETARY BODIES WITHIN THE AB AUR SYSTEM

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.

NATURVETENSKAP Fysik Astronomi, astrofysik och kosmologi hsv//swe
NATURAL SCIENCES Physical Sciences Astronomy, Astrophysics and Cosmology hsv//eng
planet-disk interactions
planetary systems
protoplanetary disks
radiative transfer
stars: individual (AB Aur)
stars: pre-main sequence

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

By the author/editor: Lomax, Jamie R.; Wisniewski, John ...; Grady, Carol A.; McElwain, Michae ...; Hashimoto, Jun; Kudo, Tomoyuki; show more...; Kusakabe, Nobuhi ...; Okamoto, Yoshiko ...; Fukagawa, Misato; Abe, Lyu; Brandner, Wolfga ...; Brandt, Timothy ...; Carson, Joseph C ...; Currie, Thayne M ...; Egner, Sebastian; Feldt, Markus; Goto, Miwa; Guyon, Olivier; Hayano, Yutaka; Hayashi, Masahik ...; Hayashi, Saeko S ...; Henning, Thomas; Hodapp, Klaus W.; Inoue, Akio; Ishii, Miki; Iye, Masanori; Janson, Markus; Kandori, Ryo; Knapp, Gillian R ...; Kuzuhara, Masayu ...; Kwon, Jungmi; Matsuo, Taro; Mayama, Satoshi; Miyama, Shoken; Momose, Munetake; Morino, Jun-Ichi; Moro-Martin, Ama ...; Nishimura, Tetsu ...; Pyo, Tae-Soo; Schneider, Glenn ...; Serabyn, Eugene; Sitko, Michael L ...; Suenaga, Takuya; Suto, Hiroshi; Suzuki, Ryuji; Takahashi, Yasuh ...; Takami, Michihir ...; Takato, Naruhisa; Terada, Hiroshi; Thalmann, Christ ...; Tomono, Daigo; Turner, Edwin L.; Watanabe, Makoto; Yamada, Toru; Takami, Hideki; Usuda, Tomonori; Tamura, Motohide; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Astronomy Astrop ...

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