High-resolution submillimeter and near-infrared studies of the transition disk around Sz 91

Takashi Tsukagoshi, Munetake Momose, Jun Hashimoto, Tomoyuki Kudo, Sean Andrews, Masao Saito, Yoshimi Kitamura, Nagayoshi Ohashi, David Wilner, Ryohei Kawabe, Lyu Abe, Eiji Akiyama, Wolfgang Brandner, Timothy D. Brandt, Joseph Carson, Thayne Currie, Sebastian E. Egner, Miwa Goto, Carol Grady, Olivier GuyonYutaka Hayano, Masahiko Hayashi, Saeko Hayashi, Thomas Henning, Klaus W. Hodapp, Miki Ishii, Masanori Iye, Markus Janson, Ryo Kandori, Gillian R. Knapp, Nobuhiko Kusakabe, Masayuki Kuzuhara, Jungmi Kwon, Mike McElwain, Taro Matsuo, Satoshi Mayama, Shoken Miyama, Jun Ichi Morino, Amaya Moro-Martín, Tetsuro Nishimura, Tae Soo Pyo, Eugene Serabyn, Takuya Suenaga, Hiroshi Suto, Ryuji Suzuki, Yasuhiro Takahashi, Hideki Takami, Michihiro Takami, Naruhisa Takato, Hiroshi Terada, Christian Thalmann, Daigo Tomono, Edwin L. Turner, Tomonori Usuda, Makoto Watanabe, John P. Wisniewski, Toru Yamada, Motohide Tamura

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

To reveal the structures of a transition disk around a young stellar object in Lupus, Sz 91 , we have performed aperture synthesis 345 GHz continuum and CO(3-2) observations with the Submillimeter Array (1″-3″ resolution) and high-resolution imaging of polarized intensity at the Ks -band using the HiCIAO instrument on the Subaru Telescope (0.″25 resolution). Our observations successfully resolved the inner and outer radii of the dust disk to be 65 and 170 AU, respectively, which indicates that Sz 91 is a transition disk source with one of the largest known inner holes. The model fitting analysis of the spectral energy distribution reveals an H2 mass of 2.4 × 10-3 M in the cold (T < 30 K) outer part at 65 AU <r < 170 AU by assuming a canonical gas-to-dust mass ratio of 100, although a small amount (>3 × 10-9 M ) of hot (T180 K) dust possibly remains inside the inner hole of the disk. The structure of the hot component could be interpreted as either an unresolved self-luminous companion body (not directly detected in our observations) or a narrow ring inside the inner hole. Significant CO(3-2) emission with a velocity gradient along the major axis of the dust disk is concentrated on the Sz 91 position, suggesting a rotating gas disk with a radius of 420 AU. The Sz 91 disk is possibly a rare disk in an evolutionary stage immediately after the formation of protoplanets because of the large inner hole and the lower disk mass than other transition disks studied thus far.

Original languageEnglish (US)
Article number90
JournalAstrophysical Journal
Volume783
Issue number2
DOIs
StatePublished - Mar 10 2014
Externally publishedYes

Fingerprint

near infrared
dust
high resolution
gas
energy
radii
protoplanets
spectral energy distribution
apertures
telescopes
continuums
gradients
rings
synthesis
gases
distribution
analysis
cold
young

Keywords

  • circumstellar matter
  • protoplanetary disks
  • stars: individual (Sz 91)
  • stars: pre-main sequence

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Tsukagoshi, T., Momose, M., Hashimoto, J., Kudo, T., Andrews, S., Saito, M., ... Tamura, M. (2014). High-resolution submillimeter and near-infrared studies of the transition disk around Sz 91. Astrophysical Journal, 783(2), [90]. https://doi.org/10.1088/0004-637X/783/2/90

High-resolution submillimeter and near-infrared studies of the transition disk around Sz 91. / Tsukagoshi, Takashi; Momose, Munetake; Hashimoto, Jun; Kudo, Tomoyuki; Andrews, Sean; Saito, Masao; Kitamura, Yoshimi; Ohashi, Nagayoshi; Wilner, David; Kawabe, Ryohei; Abe, Lyu; Akiyama, Eiji; Brandner, Wolfgang; Brandt, Timothy D.; Carson, Joseph; Currie, Thayne; Egner, Sebastian E.; Goto, Miwa; Grady, Carol; Guyon, Olivier; Hayano, Yutaka; Hayashi, Masahiko; Hayashi, Saeko; Henning, Thomas; Hodapp, Klaus W.; Ishii, Miki; Iye, Masanori; Janson, Markus; Kandori, Ryo; Knapp, Gillian R.; Kusakabe, Nobuhiko; Kuzuhara, Masayuki; Kwon, Jungmi; McElwain, Mike; Matsuo, Taro; Mayama, Satoshi; Miyama, Shoken; Morino, Jun Ichi; Moro-Martín, Amaya; Nishimura, Tetsuro; Pyo, Tae Soo; Serabyn, Eugene; Suenaga, Takuya; Suto, Hiroshi; Suzuki, Ryuji; Takahashi, Yasuhiro; Takami, Hideki; Takami, Michihiro; Takato, Naruhisa; Terada, Hiroshi; Thalmann, Christian; Tomono, Daigo; Turner, Edwin L.; Usuda, Tomonori; Watanabe, Makoto; Wisniewski, John P.; Yamada, Toru; Tamura, Motohide.

In: Astrophysical Journal, Vol. 783, No. 2, 90, 10.03.2014.

Research output: Contribution to journalArticle

Tsukagoshi, T, Momose, M, Hashimoto, J, Kudo, T, Andrews, S, Saito, M, Kitamura, Y, Ohashi, N, Wilner, D, Kawabe, R, Abe, L, Akiyama, E, Brandner, W, Brandt, TD, Carson, J, Currie, T, Egner, SE, Goto, M, Grady, C, Guyon, O, Hayano, Y, Hayashi, M, Hayashi, S, Henning, T, Hodapp, KW, Ishii, M, Iye, M, Janson, M, Kandori, R, Knapp, GR, Kusakabe, N, Kuzuhara, M, Kwon, J, McElwain, M, Matsuo, T, Mayama, S, Miyama, S, Morino, JI, Moro-Martín, A, Nishimura, T, Pyo, TS, Serabyn, E, Suenaga, T, Suto, H, Suzuki, R, Takahashi, Y, Takami, H, Takami, M, Takato, N, Terada, H, Thalmann, C, Tomono, D, Turner, EL, Usuda, T, Watanabe, M, Wisniewski, JP, Yamada, T & Tamura, M 2014, 'High-resolution submillimeter and near-infrared studies of the transition disk around Sz 91', Astrophysical Journal, vol. 783, no. 2, 90. https://doi.org/10.1088/0004-637X/783/2/90
Tsukagoshi, Takashi ; Momose, Munetake ; Hashimoto, Jun ; Kudo, Tomoyuki ; Andrews, Sean ; Saito, Masao ; Kitamura, Yoshimi ; Ohashi, Nagayoshi ; Wilner, David ; Kawabe, Ryohei ; Abe, Lyu ; Akiyama, Eiji ; Brandner, Wolfgang ; Brandt, Timothy D. ; Carson, Joseph ; Currie, Thayne ; Egner, Sebastian E. ; Goto, Miwa ; Grady, Carol ; Guyon, Olivier ; Hayano, Yutaka ; Hayashi, Masahiko ; Hayashi, Saeko ; Henning, Thomas ; Hodapp, Klaus W. ; Ishii, Miki ; Iye, Masanori ; Janson, Markus ; Kandori, Ryo ; Knapp, Gillian R. ; Kusakabe, Nobuhiko ; Kuzuhara, Masayuki ; Kwon, Jungmi ; McElwain, Mike ; Matsuo, Taro ; Mayama, Satoshi ; Miyama, Shoken ; Morino, Jun Ichi ; Moro-Martín, Amaya ; Nishimura, Tetsuro ; Pyo, Tae Soo ; Serabyn, Eugene ; Suenaga, Takuya ; Suto, Hiroshi ; Suzuki, Ryuji ; Takahashi, Yasuhiro ; Takami, Hideki ; Takami, Michihiro ; Takato, Naruhisa ; Terada, Hiroshi ; Thalmann, Christian ; Tomono, Daigo ; Turner, Edwin L. ; Usuda, Tomonori ; Watanabe, Makoto ; Wisniewski, John P. ; Yamada, Toru ; Tamura, Motohide. / High-resolution submillimeter and near-infrared studies of the transition disk around Sz 91. In: Astrophysical Journal. 2014 ; Vol. 783, No. 2.
@article{427c9c3890b84d3ca57f46e50f2310b6,
title = "High-resolution submillimeter and near-infrared studies of the transition disk around Sz 91",
abstract = "To reveal the structures of a transition disk around a young stellar object in Lupus, Sz 91 , we have performed aperture synthesis 345 GHz continuum and CO(3-2) observations with the Submillimeter Array (1″-3″ resolution) and high-resolution imaging of polarized intensity at the Ks -band using the HiCIAO instrument on the Subaru Telescope (0.″25 resolution). Our observations successfully resolved the inner and outer radii of the dust disk to be 65 and 170 AU, respectively, which indicates that Sz 91 is a transition disk source with one of the largest known inner holes. The model fitting analysis of the spectral energy distribution reveals an H2 mass of 2.4 × 10-3 M⊙ in the cold (T < 30 K) outer part at 65 AU 3 × 10-9 M ⊙) of hot (T180 K) dust possibly remains inside the inner hole of the disk. The structure of the hot component could be interpreted as either an unresolved self-luminous companion body (not directly detected in our observations) or a narrow ring inside the inner hole. Significant CO(3-2) emission with a velocity gradient along the major axis of the dust disk is concentrated on the Sz 91 position, suggesting a rotating gas disk with a radius of 420 AU. The Sz 91 disk is possibly a rare disk in an evolutionary stage immediately after the formation of protoplanets because of the large inner hole and the lower disk mass than other transition disks studied thus far.",
keywords = "circumstellar matter, protoplanetary disks, stars: individual (Sz 91), stars: pre-main sequence",
author = "Takashi Tsukagoshi and Munetake Momose and Jun Hashimoto and Tomoyuki Kudo and Sean Andrews and Masao Saito and Yoshimi Kitamura and Nagayoshi Ohashi and David Wilner and Ryohei Kawabe and Lyu Abe and Eiji Akiyama and Wolfgang Brandner and Brandt, {Timothy D.} and Joseph Carson and Thayne Currie and Egner, {Sebastian E.} and Miwa Goto and Carol Grady and Olivier Guyon and Yutaka Hayano and Masahiko Hayashi and Saeko Hayashi and Thomas Henning and Hodapp, {Klaus W.} and Miki Ishii and Masanori Iye and Markus Janson and Ryo Kandori and Knapp, {Gillian R.} and Nobuhiko Kusakabe and Masayuki Kuzuhara and Jungmi Kwon and Mike McElwain and Taro Matsuo and Satoshi Mayama and Shoken Miyama and Morino, {Jun Ichi} and Amaya Moro-Mart{\'i}n and Tetsuro Nishimura and Pyo, {Tae Soo} and Eugene Serabyn and Takuya Suenaga and Hiroshi Suto and Ryuji Suzuki and Yasuhiro Takahashi and Hideki Takami and Michihiro Takami and Naruhisa Takato and Hiroshi Terada and Christian Thalmann and Daigo Tomono and Turner, {Edwin L.} and Tomonori Usuda and Makoto Watanabe and Wisniewski, {John P.} and Toru Yamada and Motohide Tamura",
year = "2014",
month = "3",
day = "10",
doi = "10.1088/0004-637X/783/2/90",
language = "English (US)",
volume = "783",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "2",

}

TY - JOUR

T1 - High-resolution submillimeter and near-infrared studies of the transition disk around Sz 91

AU - Tsukagoshi, Takashi

AU - Momose, Munetake

AU - Hashimoto, Jun

AU - Kudo, Tomoyuki

AU - Andrews, Sean

AU - Saito, Masao

AU - Kitamura, Yoshimi

AU - Ohashi, Nagayoshi

AU - Wilner, David

AU - Kawabe, Ryohei

AU - Abe, Lyu

AU - Akiyama, Eiji

AU - Brandner, Wolfgang

AU - Brandt, Timothy D.

AU - Carson, Joseph

AU - Currie, Thayne

AU - Egner, Sebastian E.

AU - Goto, Miwa

AU - Grady, Carol

AU - Guyon, Olivier

AU - Hayano, Yutaka

AU - Hayashi, Masahiko

AU - Hayashi, Saeko

AU - Henning, Thomas

AU - Hodapp, Klaus W.

AU - Ishii, Miki

AU - Iye, Masanori

AU - Janson, Markus

AU - Kandori, Ryo

AU - Knapp, Gillian R.

AU - Kusakabe, Nobuhiko

AU - Kuzuhara, Masayuki

AU - Kwon, Jungmi

AU - McElwain, Mike

AU - Matsuo, Taro

AU - Mayama, Satoshi

AU - Miyama, Shoken

AU - Morino, Jun Ichi

AU - Moro-Martín, Amaya

AU - Nishimura, Tetsuro

AU - Pyo, Tae Soo

AU - Serabyn, Eugene

AU - Suenaga, Takuya

AU - Suto, Hiroshi

AU - Suzuki, Ryuji

AU - Takahashi, Yasuhiro

AU - Takami, Hideki

AU - Takami, Michihiro

AU - Takato, Naruhisa

AU - Terada, Hiroshi

AU - Thalmann, Christian

AU - Tomono, Daigo

AU - Turner, Edwin L.

AU - Usuda, Tomonori

AU - Watanabe, Makoto

AU - Wisniewski, John P.

AU - Yamada, Toru

AU - Tamura, Motohide

PY - 2014/3/10

Y1 - 2014/3/10

N2 - To reveal the structures of a transition disk around a young stellar object in Lupus, Sz 91 , we have performed aperture synthesis 345 GHz continuum and CO(3-2) observations with the Submillimeter Array (1″-3″ resolution) and high-resolution imaging of polarized intensity at the Ks -band using the HiCIAO instrument on the Subaru Telescope (0.″25 resolution). Our observations successfully resolved the inner and outer radii of the dust disk to be 65 and 170 AU, respectively, which indicates that Sz 91 is a transition disk source with one of the largest known inner holes. The model fitting analysis of the spectral energy distribution reveals an H2 mass of 2.4 × 10-3 M⊙ in the cold (T < 30 K) outer part at 65 AU 3 × 10-9 M ⊙) of hot (T180 K) dust possibly remains inside the inner hole of the disk. The structure of the hot component could be interpreted as either an unresolved self-luminous companion body (not directly detected in our observations) or a narrow ring inside the inner hole. Significant CO(3-2) emission with a velocity gradient along the major axis of the dust disk is concentrated on the Sz 91 position, suggesting a rotating gas disk with a radius of 420 AU. The Sz 91 disk is possibly a rare disk in an evolutionary stage immediately after the formation of protoplanets because of the large inner hole and the lower disk mass than other transition disks studied thus far.

AB - To reveal the structures of a transition disk around a young stellar object in Lupus, Sz 91 , we have performed aperture synthesis 345 GHz continuum and CO(3-2) observations with the Submillimeter Array (1″-3″ resolution) and high-resolution imaging of polarized intensity at the Ks -band using the HiCIAO instrument on the Subaru Telescope (0.″25 resolution). Our observations successfully resolved the inner and outer radii of the dust disk to be 65 and 170 AU, respectively, which indicates that Sz 91 is a transition disk source with one of the largest known inner holes. The model fitting analysis of the spectral energy distribution reveals an H2 mass of 2.4 × 10-3 M⊙ in the cold (T < 30 K) outer part at 65 AU 3 × 10-9 M ⊙) of hot (T180 K) dust possibly remains inside the inner hole of the disk. The structure of the hot component could be interpreted as either an unresolved self-luminous companion body (not directly detected in our observations) or a narrow ring inside the inner hole. Significant CO(3-2) emission with a velocity gradient along the major axis of the dust disk is concentrated on the Sz 91 position, suggesting a rotating gas disk with a radius of 420 AU. The Sz 91 disk is possibly a rare disk in an evolutionary stage immediately after the formation of protoplanets because of the large inner hole and the lower disk mass than other transition disks studied thus far.

KW - circumstellar matter

KW - protoplanetary disks

KW - stars: individual (Sz 91)

KW - stars: pre-main sequence

UR - http://www.scopus.com/inward/record.url?scp=84896787062&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84896787062&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/783/2/90

DO - 10.1088/0004-637X/783/2/90

M3 - Article

AN - SCOPUS:84896787062

VL - 783

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2

M1 - 90

ER -