The SEEDS High-Contrast Imaging Survey of Exoplanets Around Young Stellar Objects

Taichi Uyama; Jun Hashimoto; Masayuki Kuzuhara; Satoshi Mayama; Eiji Akiyama; Thayne Currie; John Livingston; Tomoyuki Kudo; Nobuhiko Kusakabe; Lyu Abe; Wolfgang Brandner; Timothy D. Brandt; Joseph C. Carson; Sebastian Egner; Markus Feldt; 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; Michael W. McElwain; Shoken Miyama; Jun Ichi Morino; Amaya Moro-Martin; Tetsuo Nishimura; Tae Soo Pyo; Eugene Serabyn; 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; Hideki Takami; Tomonori Usuda; Motohide Tamura

doi:10.3847/1538-3881/153/3/106

The SEEDS High-Contrast Imaging Survey of Exoplanets Around Young Stellar Objects

Taichi Uyama, Jun Hashimoto, Masayuki Kuzuhara, Satoshi Mayama, Eiji Akiyama, Thayne Currie, John Livingston, Tomoyuki Kudo, Nobuhiko Kusakabe, Lyu Abe, Wolfgang Brandner, Timothy D. Brandt, Joseph C. Carson, Sebastian Egner, Markus Feldt, Miwa Goto, Carol A. Grady, Olivier Guyon, Yutaka Hayano, Masahiko HayashiSaeko S. Hayashi, Thomas Henning, Klaus W. Hodapp, Miki Ishii, Masanori Iye, Markus Janson, Ryo Kandori, Gillian R. Knapp, Jungmi Kwon, Taro Matsuo, Michael W. McElwain, Shoken Miyama, Jun Ichi Morino, Amaya Moro-Martin, Tetsuo Nishimura, Tae Soo Pyo, Eugene Serabyn, 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, Hideki Takami, Tomonori Usuda, Motohide Tamura

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

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Abstract

We present high-contrast observations of 68 young stellar objects (YSOs) that have been explored as part of the Strategic Exploration of Exoplanets and Disks with Subaru (SEEDS) survey on the Subaru telescope. Our targets are very young (<10 Myr) stars, which often harbor protoplanetary disks where planets may be forming. We achieve a typical contrast of ∼10^-4-10^-5.5 at an angular distance of 1″ from the central star, corresponding to typical mass sensitivities (assuming hot-start evolutionary models) of ∼10 M _J at 70 au and ∼6 M _J at 140 au. We detected a new stellar companion to HIP 79462 and confirmed the substellar objects GQ Lup b and ROXs 42B b. An additional six companion candidates await follow-up observations to check for common proper motion. Our SEEDS YSO observations probe the population of planets and brown dwarfs at the very youngest ages; these may be compared to the results of surveys targeting somewhat older stars. Our sample and the associated observational results will help enable detailed statistical analyses of giant planet formation.

Original language	English (US)
Article number	106
Journal	Astronomical Journal
Volume	153
Issue number	3
DOIs	https://doi.org/10.3847/1538-3881/153/3/106
State	Published - Mar 2017
Externally published	Yes

Keywords

planetary systems
planetdisk interactions
planets and satellites: formation
stars: variables: T Tauri, Herbig Ae/Be

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-3881/153/3/106

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Uyama, T., Hashimoto, J., Kuzuhara, M., Mayama, S., Akiyama, E., Currie, T., Livingston, J., Kudo, T., Kusakabe, N., Abe, L., Brandner, W., Brandt, T. D., Carson, J. C., Egner, S., Feldt, M., Goto, M., Grady, C. A., Guyon, O., Hayano, Y., ... Tamura, M. (2017). The SEEDS High-Contrast Imaging Survey of Exoplanets Around Young Stellar Objects. Astronomical Journal, 153(3), Article 106. https://doi.org/10.3847/1538-3881/153/3/106

Uyama, T, Hashimoto, J, Kuzuhara, M, Mayama, S, Akiyama, E, Currie, T, Livingston, J, Kudo, T, Kusakabe, N, Abe, L, Brandner, W, Brandt, TD, Carson, JC, Egner, S, Feldt, M, 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, McElwain, MW, Miyama, S, Morino, JI, Moro-Martin, A, Nishimura, T, Pyo, TS, Serabyn, E, Suenaga, T, Suto, H, Suzuki, R, Takahashi, YH, Takami, M, Takato, N, Terada, H, Thalmann, C, Turner, EL, Watanabe, M, Wisniewski, J, Yamada, T, Takami, H, Usuda, T & Tamura, M 2017, 'The SEEDS High-Contrast Imaging Survey of Exoplanets Around Young Stellar Objects', Astronomical Journal, vol. 153, no. 3, 106. https://doi.org/10.3847/1538-3881/153/3/106

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title = "The SEEDS High-Contrast Imaging Survey of Exoplanets Around Young Stellar Objects",

abstract = "We present high-contrast observations of 68 young stellar objects (YSOs) that have been explored as part of the Strategic Exploration of Exoplanets and Disks with Subaru (SEEDS) survey on the Subaru telescope. Our targets are very young (<10 Myr) stars, which often harbor protoplanetary disks where planets may be forming. We achieve a typical contrast of ∼10-4-10-5.5 at an angular distance of 1″ from the central star, corresponding to typical mass sensitivities (assuming hot-start evolutionary models) of ∼10 M J at 70 au and ∼6 M J at 140 au. We detected a new stellar companion to HIP 79462 and confirmed the substellar objects GQ Lup b and ROXs 42B b. An additional six companion candidates await follow-up observations to check for common proper motion. Our SEEDS YSO observations probe the population of planets and brown dwarfs at the very youngest ages; these may be compared to the results of surveys targeting somewhat older stars. Our sample and the associated observational results will help enable detailed statistical analyses of giant planet formation.",

keywords = "planetary systems, planetdisk interactions, planets and satellites: formation, stars: variables: T Tauri, Herbig Ae/Be",

author = "Taichi Uyama and Jun Hashimoto and Masayuki Kuzuhara and Satoshi Mayama and Eiji Akiyama and Thayne Currie and John Livingston and Tomoyuki Kudo and Nobuhiko Kusakabe and Lyu Abe and Wolfgang Brandner and Brandt, {Timothy D.} and Carson, {Joseph C.} and Sebastian Egner and Markus Feldt 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 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 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 Hideki Takami and Tomonori Usuda and Motohide Tamura",

year = "2017",

month = mar,

doi = "10.3847/1538-3881/153/3/106",

language = "English (US)",

volume = "153",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "American Astronomical Society",

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T1 - The SEEDS High-Contrast Imaging Survey of Exoplanets Around Young Stellar Objects

AU - Uyama, Taichi

AU - Hashimoto, Jun

AU - Kuzuhara, Masayuki

AU - Mayama, Satoshi

AU - Akiyama, Eiji

AU - Currie, Thayne

AU - Livingston, John

AU - Kudo, Tomoyuki

AU - Kusakabe, Nobuhiko

AU - Abe, Lyu

AU - Brandner, Wolfgang

AU - Brandt, Timothy D.

AU - Carson, Joseph C.

AU - Egner, Sebastian

AU - Feldt, Markus

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 - 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 - 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 - Takami, Hideki

AU - Usuda, Tomonori

AU - Tamura, Motohide

PY - 2017/3

Y1 - 2017/3

N2 - We present high-contrast observations of 68 young stellar objects (YSOs) that have been explored as part of the Strategic Exploration of Exoplanets and Disks with Subaru (SEEDS) survey on the Subaru telescope. Our targets are very young (<10 Myr) stars, which often harbor protoplanetary disks where planets may be forming. We achieve a typical contrast of ∼10-4-10-5.5 at an angular distance of 1″ from the central star, corresponding to typical mass sensitivities (assuming hot-start evolutionary models) of ∼10 M J at 70 au and ∼6 M J at 140 au. We detected a new stellar companion to HIP 79462 and confirmed the substellar objects GQ Lup b and ROXs 42B b. An additional six companion candidates await follow-up observations to check for common proper motion. Our SEEDS YSO observations probe the population of planets and brown dwarfs at the very youngest ages; these may be compared to the results of surveys targeting somewhat older stars. Our sample and the associated observational results will help enable detailed statistical analyses of giant planet formation.

AB - We present high-contrast observations of 68 young stellar objects (YSOs) that have been explored as part of the Strategic Exploration of Exoplanets and Disks with Subaru (SEEDS) survey on the Subaru telescope. Our targets are very young (<10 Myr) stars, which often harbor protoplanetary disks where planets may be forming. We achieve a typical contrast of ∼10-4-10-5.5 at an angular distance of 1″ from the central star, corresponding to typical mass sensitivities (assuming hot-start evolutionary models) of ∼10 M J at 70 au and ∼6 M J at 140 au. We detected a new stellar companion to HIP 79462 and confirmed the substellar objects GQ Lup b and ROXs 42B b. An additional six companion candidates await follow-up observations to check for common proper motion. Our SEEDS YSO observations probe the population of planets and brown dwarfs at the very youngest ages; these may be compared to the results of surveys targeting somewhat older stars. Our sample and the associated observational results will help enable detailed statistical analyses of giant planet formation.

KW - planetary systems

KW - planetdisk interactions

KW - planets and satellites: formation

KW - stars: variables: T Tauri, Herbig Ae/Be

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DO - 10.3847/1538-3881/153/3/106

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SN - 0004-6256

VL - 153

JO - Astronomical Journal

JF - Astronomical Journal

IS - 3

M1 - 106

ER -

The SEEDS High-Contrast Imaging Survey of Exoplanets Around Young Stellar Objects

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Keywords

ASJC Scopus subject areas

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