Direct imaging discovery of a "sUPER-JUPITER" around the late b-type star κ and

J. Carson; C. Thalmann; M. Janson; T. Kozakis; M. Bonnefoy; B. Biller; J. Schlieder; T. Currie; M. McElwain; M. Goto; T. Henning; W. Brandner; M. Feldt; R. Kandori; M. Kuzuhara; L. Stevens; P. Wong; K. Gainey; M. Fukagawa; Y. Kuwada; T. Brandt; J. Kwon; L. Abe; S. Egner; C. Grady; O. Guyon; J. Hashimoto; Y. Hayano; M. Hayashi; S. Hayashi; K. Hodapp; M. Ishii; M. Iye; G. Knapp; T. Kudo; N. Kusakabe; T. Matsuo; S. Miyama; J. Morino; A. Moro-Martin; T. Nishimura; T. Pyo; E. Serabyn; H. Suto; R. Suzuki; M. Takami; N. Takato; H. Terada; D. Tomono; E. Turner; M. Watanabe; J. Wisniewski; T. Yamada; H. Takami; T. Usuda; M. Tamura

doi:10.1088/2041-8205/763/2/L32

Direct imaging discovery of a "sUPER-JUPITER" around the late b-type star κ and

J. Carson, C. Thalmann, M. Janson, T. Kozakis, M. Bonnefoy, B. Biller, J. Schlieder, T. Currie, M. McElwain, M. Goto, T. Henning, W. Brandner, M. Feldt, R. Kandori, M. Kuzuhara, L. Stevens, P. Wong, K. Gainey, M. Fukagawa, Y. KuwadaT. Brandt, J. Kwon, L. Abe, S. Egner, C. Grady, O. Guyon, J. Hashimoto, Y. Hayano, M. Hayashi, S. Hayashi, K. Hodapp, M. Ishii, M. Iye, G. Knapp, T. Kudo, N. Kusakabe, T. Matsuo, S. Miyama, J. Morino, A. Moro-Martin, T. Nishimura, T. Pyo, E. Serabyn, H. Suto, R. Suzuki, M. Takami, N. Takato, H. Terada, D. Tomono, E. Turner, M. Watanabe, J. Wisniewski, T. Yamada, H. Takami, T. Usuda, M. Tamura

Astrophysical Sciences

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Abstract

We present the direct imaging discovery of an extrasolar planet, or possible low-mass brown dwarf, at a projected separation of 55 ± 2 AU (1.″058 ± 0.″007) from the B9-type star κ And. The planet was detected with Subaru/HiCIAO during the SEEDS survey and confirmed as a bound companion via common proper motion measurements. Observed near-infrared magnitudes of J = 16.3 ± 0.3, H = 15.2 ± 0.2, K _s = 14.6 ± 0.4, and L′ = 13.12 ± 0.09 indicate a temperature of ∼1700 K. The galactic kinematics of the host star are consistent with membership in the Columba Association, implying a corresponding age of 30 ⁺²⁰ _-10 Myr. The system's age, combined with the companion photometry, points to a model-dependent companion mass ∼12.8 M _Jup. The host star's estimated mass of 2.4-2.5 M_⊙ places it among the most massive stars ever known to harbor an extrasolar planet or low-mass brown dwarf. While the mass of the companion is close to the deuterium burning limit, its mass ratio, orbital separation, and likely planet-like formation scenario imply that it may be best defined as a "super-Jupiter" with properties similar to other recently discovered companions to massive stars.

Original language	English (US)
Article number	L32
Journal	Astrophysical Journal Letters
Volume	763
Issue number	2
DOIs	https://doi.org/10.1088/2041-8205/763/2/L32
State	Published - Feb 1 2013

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

brown dwarfs
planets and satellites: detection
stars: massive

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10.1088/2041-8205/763/2/L32

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Carson, J., Thalmann, C., Janson, M., Kozakis, T., Bonnefoy, M., Biller, B., Schlieder, J., Currie, T., McElwain, M., Goto, M., Henning, T., Brandner, W., Feldt, M., Kandori, R., Kuzuhara, M., Stevens, L., Wong, P., Gainey, K., Fukagawa, M., ... Tamura, M. (2013). Direct imaging discovery of a "sUPER-JUPITER" around the late b-type star κ and. Astrophysical Journal Letters, 763(2), Article L32. https://doi.org/10.1088/2041-8205/763/2/L32

@article{e3f2afd15cb34a3b9b76847ee8873409,

title = "Direct imaging discovery of a {"}sUPER-JUPITER{"} around the late b-type star κ and",

abstract = "We present the direct imaging discovery of an extrasolar planet, or possible low-mass brown dwarf, at a projected separation of 55 ± 2 AU (1.″058 ± 0.″007) from the B9-type star κ And. The planet was detected with Subaru/HiCIAO during the SEEDS survey and confirmed as a bound companion via common proper motion measurements. Observed near-infrared magnitudes of J = 16.3 ± 0.3, H = 15.2 ± 0.2, K s = 14.6 ± 0.4, and L′ = 13.12 ± 0.09 indicate a temperature of ∼1700 K. The galactic kinematics of the host star are consistent with membership in the Columba Association, implying a corresponding age of 30 +20 -10 Myr. The system's age, combined with the companion photometry, points to a model-dependent companion mass ∼12.8 M Jup. The host star's estimated mass of 2.4-2.5 M⊙ places it among the most massive stars ever known to harbor an extrasolar planet or low-mass brown dwarf. While the mass of the companion is close to the deuterium burning limit, its mass ratio, orbital separation, and likely planet-like formation scenario imply that it may be best defined as a {"}super-Jupiter{"} with properties similar to other recently discovered companions to massive stars.",

keywords = "brown dwarfs, planets and satellites: detection, stars: massive",

author = "J. Carson and C. Thalmann and M. Janson and T. Kozakis and M. Bonnefoy and B. Biller and J. Schlieder and T. Currie and M. McElwain and M. Goto and T. Henning and W. Brandner and M. Feldt and R. Kandori and M. Kuzuhara and L. Stevens and P. Wong and K. Gainey and M. Fukagawa and Y. Kuwada and T. Brandt and J. Kwon and L. Abe and S. Egner and C. Grady and O. Guyon and J. Hashimoto and Y. Hayano and M. Hayashi and S. Hayashi and K. Hodapp and M. Ishii and M. Iye and G. Knapp and T. Kudo and N. Kusakabe and T. Matsuo and S. Miyama and J. Morino and A. Moro-Martin and T. Nishimura and T. Pyo and E. Serabyn and H. Suto and R. Suzuki and M. Takami and N. Takato and H. Terada and D. Tomono and E. Turner and M. Watanabe and J. Wisniewski and T. Yamada and H. Takami and T. Usuda and M. Tamura",

year = "2013",

month = feb,

day = "1",

doi = "10.1088/2041-8205/763/2/L32",

language = "English (US)",

volume = "763",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

publisher = "American Astronomical Society",

number = "2",

}

Carson, J, Thalmann, C, Janson, M, Kozakis, T, Bonnefoy, M, Biller, B, Schlieder, J, Currie, T, McElwain, M, Goto, M, Henning, T, Brandner, W, Feldt, M, Kandori, R, Kuzuhara, M, Stevens, L, Wong, P, Gainey, K, Fukagawa, M, Kuwada, Y, Brandt, T, Kwon, J, Abe, L, Egner, S, Grady, C, Guyon, O, Hashimoto, J, Hayano, Y, Hayashi, M, Hayashi, S, Hodapp, K, Ishii, M, Iye, M, Knapp, G, Kudo, T, Kusakabe, N, Matsuo, T, Miyama, S, Morino, J, Moro-Martin, A, Nishimura, T, Pyo, T, Serabyn, E, Suto, H, Suzuki, R, Takami, M, Takato, N, Terada, H, Tomono, D, Turner, E, Watanabe, M, Wisniewski, J, Yamada, T, Takami, H, Usuda, T & Tamura, M 2013, 'Direct imaging discovery of a "sUPER-JUPITER" around the late b-type star κ and', Astrophysical Journal Letters, vol. 763, no. 2, L32. https://doi.org/10.1088/2041-8205/763/2/L32

TY - JOUR

T1 - Direct imaging discovery of a "sUPER-JUPITER" around the late b-type star κ and

AU - Carson, J.

AU - Thalmann, C.

AU - Janson, M.

AU - Kozakis, T.

AU - Bonnefoy, M.

AU - Biller, B.

AU - Schlieder, J.

AU - Currie, T.

AU - McElwain, M.

AU - Goto, M.

AU - Henning, T.

AU - Brandner, W.

AU - Feldt, M.

AU - Kandori, R.

AU - Kuzuhara, M.

AU - Stevens, L.

AU - Wong, P.

AU - Gainey, K.

AU - Fukagawa, M.

AU - Kuwada, Y.

AU - Brandt, T.

AU - Kwon, J.

AU - Abe, L.

AU - Egner, S.

AU - Grady, C.

AU - Guyon, O.

AU - Hashimoto, J.

AU - Hayano, Y.

AU - Hayashi, M.

AU - Hayashi, S.

AU - Hodapp, K.

AU - Ishii, M.

AU - Iye, M.

AU - Knapp, G.

AU - Kudo, T.

AU - Kusakabe, N.

AU - Matsuo, T.

AU - Miyama, S.

AU - Morino, J.

AU - Moro-Martin, A.

AU - Nishimura, T.

AU - Pyo, T.

AU - Serabyn, E.

AU - Suto, H.

AU - Suzuki, R.

AU - Takami, M.

AU - Takato, N.

AU - Terada, H.

AU - Tomono, D.

AU - Turner, E.

AU - Watanabe, M.

AU - Wisniewski, J.

AU - Yamada, T.

AU - Takami, H.

AU - Usuda, T.

AU - Tamura, M.

PY - 2013/2/1

Y1 - 2013/2/1

N2 - We present the direct imaging discovery of an extrasolar planet, or possible low-mass brown dwarf, at a projected separation of 55 ± 2 AU (1.″058 ± 0.″007) from the B9-type star κ And. The planet was detected with Subaru/HiCIAO during the SEEDS survey and confirmed as a bound companion via common proper motion measurements. Observed near-infrared magnitudes of J = 16.3 ± 0.3, H = 15.2 ± 0.2, K s = 14.6 ± 0.4, and L′ = 13.12 ± 0.09 indicate a temperature of ∼1700 K. The galactic kinematics of the host star are consistent with membership in the Columba Association, implying a corresponding age of 30 +20 -10 Myr. The system's age, combined with the companion photometry, points to a model-dependent companion mass ∼12.8 M Jup. The host star's estimated mass of 2.4-2.5 M⊙ places it among the most massive stars ever known to harbor an extrasolar planet or low-mass brown dwarf. While the mass of the companion is close to the deuterium burning limit, its mass ratio, orbital separation, and likely planet-like formation scenario imply that it may be best defined as a "super-Jupiter" with properties similar to other recently discovered companions to massive stars.

AB - We present the direct imaging discovery of an extrasolar planet, or possible low-mass brown dwarf, at a projected separation of 55 ± 2 AU (1.″058 ± 0.″007) from the B9-type star κ And. The planet was detected with Subaru/HiCIAO during the SEEDS survey and confirmed as a bound companion via common proper motion measurements. Observed near-infrared magnitudes of J = 16.3 ± 0.3, H = 15.2 ± 0.2, K s = 14.6 ± 0.4, and L′ = 13.12 ± 0.09 indicate a temperature of ∼1700 K. The galactic kinematics of the host star are consistent with membership in the Columba Association, implying a corresponding age of 30 +20 -10 Myr. The system's age, combined with the companion photometry, points to a model-dependent companion mass ∼12.8 M Jup. The host star's estimated mass of 2.4-2.5 M⊙ places it among the most massive stars ever known to harbor an extrasolar planet or low-mass brown dwarf. While the mass of the companion is close to the deuterium burning limit, its mass ratio, orbital separation, and likely planet-like formation scenario imply that it may be best defined as a "super-Jupiter" with properties similar to other recently discovered companions to massive stars.

KW - brown dwarfs

KW - planets and satellites: detection

KW - stars: massive

UR - http://www.scopus.com/inward/record.url?scp=84873404556&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84873404556&partnerID=8YFLogxK

U2 - 10.1088/2041-8205/763/2/L32

DO - 10.1088/2041-8205/763/2/L32

M3 - Article

AN - SCOPUS:84873404556

SN - 2041-8205

VL - 763

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

IS - 2

M1 - L32

ER -

Direct imaging discovery of a "sUPER-JUPITER" around the late b-type star κ and

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Keywords

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