The first H-band spectrum of the giant planet β Pictoris b

Jeffrey Chilcote; Travis Barman; Michael P. Fitzgerald; James R. Graham; James E. Larkin; Bruce Macintosh; Brian Bauman; Adam S. Burrows; Andrew Cardwell; Robert J. De Rosa; Daren Dillon; René Doyon; Jennifer Dunn; Darren Erikson; Donald Gavel; Stephen J. Goodsell; Markus Hartung; Pascale Hibon; Patrick Ingraham; Paul Kalas; Quinn Konopacky; Jérôme Maire; Franck Marchis; Mark S. Marley; Christian Marois; Max Millar-Blanchaer; Katie Morzinski; Andrew Norton; Rebecca Oppenheimer; David Palmer; Jennifer Patience; Marshall Perrin; Lisa Poyneer; Laurent Pueyo; Fredrik T. Rantakyrö; Naru Sadakuni; Leslie Saddlemyer; Dmitry Savransky; Andrew Serio; Anand Sivaramakrishnan; Inseok Song; Rémi Soummer; Sandrine Thomas; J. Kent Wallace; Sloane Wiktorowicz; Schuyler Wolff

doi:10.1088/2041-8205/798/1/L3

The first H-band spectrum of the giant planet β Pictoris b

Jeffrey Chilcote, Travis Barman, Michael P. Fitzgerald, James R. Graham, James E. Larkin, Bruce Macintosh, Brian Bauman, Adam S. Burrows, Andrew Cardwell, Robert J. De Rosa, Daren Dillon, René Doyon, Jennifer Dunn, Darren Erikson, Donald Gavel, Stephen J. Goodsell, Markus Hartung, Pascale Hibon, Patrick Ingraham, Paul KalasQuinn Konopacky, Jérôme Maire, Franck Marchis, Mark S. Marley, Christian Marois, Max Millar-Blanchaer, Katie Morzinski, Andrew Norton, Rebecca Oppenheimer, David Palmer, Jennifer Patience, Marshall Perrin, Lisa Poyneer, Laurent Pueyo, Fredrik T. Rantakyrö, Naru Sadakuni, Leslie Saddlemyer, Dmitry Savransky, Andrew Serio, Anand Sivaramakrishnan, Inseok Song, Rémi Soummer, Sandrine Thomas, J. Kent Wallace, Sloane Wiktorowicz, Schuyler Wolff

Earth and Space Exploration, School of (SESE)

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

36 Scopus citations

Abstract

Using the recently installed Gemini Planet Imager (GPI), we have obtained the first H-band spectrum of the planetary companion to the nearby young star β Pictoris. GPI is designed to image and provide low-resolution spectra of Jupiter-sized, self-luminous planetary companions around young nearby stars. These observations were taken covering the H band (1.65 μm). The spectrum has a resolving power of ∼45 and demonstrates the distinctive triangular shape of a cool substellar object with low surface gravity. Using atmospheric models, we find an effective temperature of 1600-1700K and a surface gravity of log(g) = 3.5-4.5 (cgs units). These values agree well with "hot-start" predictions from planetary evolution models for a gas giant with mass between 10 and 12 M_Jup and age between 10 and 20 Myr.

Original language	English (US)
Article number	L3
Journal	Astrophysical Journal Letters
Volume	798
Issue number	1
DOIs	https://doi.org/10.1088/2041-8205/798/1/L3
State	Published - Jan 1 2015

Keywords

Infrared: general
Instrumentation: adaptive optics
Planetary systems
Stars: individual (beta Pictoris)
Techniques: spectroscopic

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1088/2041-8205/798/1/L3

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Chilcote, J., Barman, T., Fitzgerald, M. P., Graham, J. R., Larkin, J. E., Macintosh, B., Bauman, B., Burrows, A. S., Cardwell, A., De Rosa, R. J., Dillon, D., Doyon, R., Dunn, J., Erikson, D., Gavel, D., Goodsell, S. J., Hartung, M., Hibon, P., Ingraham, P., ... Wolff, S. (2015). The first H-band spectrum of the giant planet β Pictoris b. Astrophysical Journal Letters, 798(1), Article L3. https://doi.org/10.1088/2041-8205/798/1/L3

Chilcote, J, Barman, T, Fitzgerald, MP, Graham, JR, Larkin, JE, Macintosh, B, Bauman, B, Burrows, AS, Cardwell, A, De Rosa, RJ, Dillon, D, Doyon, R, Dunn, J, Erikson, D, Gavel, D, Goodsell, SJ, Hartung, M, Hibon, P, Ingraham, P, Kalas, P, Konopacky, Q, Maire, J, Marchis, F, Marley, MS, Marois, C, Millar-Blanchaer, M, Morzinski, K, Norton, A, Oppenheimer, R, Palmer, D, Patience, J, Perrin, M, Poyneer, L, Pueyo, L, Rantakyrö, FT, Sadakuni, N, Saddlemyer, L, Savransky, D, Serio, A, Sivaramakrishnan, A, Song, I, Soummer, R, Thomas, S, Wallace, JK, Wiktorowicz, S & Wolff, S 2015, 'The first H-band spectrum of the giant planet β Pictoris b', Astrophysical Journal Letters, vol. 798, no. 1, L3. https://doi.org/10.1088/2041-8205/798/1/L3

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abstract = "Using the recently installed Gemini Planet Imager (GPI), we have obtained the first H-band spectrum of the planetary companion to the nearby young star β Pictoris. GPI is designed to image and provide low-resolution spectra of Jupiter-sized, self-luminous planetary companions around young nearby stars. These observations were taken covering the H band (1.65 μm). The spectrum has a resolving power of ∼45 and demonstrates the distinctive triangular shape of a cool substellar object with low surface gravity. Using atmospheric models, we find an effective temperature of 1600-1700K and a surface gravity of log(g) = 3.5-4.5 (cgs units). These values agree well with {"}hot-start{"} predictions from planetary evolution models for a gas giant with mass between 10 and 12 MJup and age between 10 and 20 Myr.",

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AU - Chilcote, Jeffrey

AU - Barman, Travis

AU - Fitzgerald, Michael P.

AU - Graham, James R.

AU - Larkin, James E.

AU - Macintosh, Bruce

AU - Bauman, Brian

AU - Burrows, Adam S.

AU - Cardwell, Andrew

AU - De Rosa, Robert J.

AU - Dillon, Daren

AU - Doyon, René

AU - Dunn, Jennifer

AU - Erikson, Darren

AU - Gavel, Donald

AU - Goodsell, Stephen J.

AU - Hartung, Markus

AU - Hibon, Pascale

AU - Ingraham, Patrick

AU - Kalas, Paul

AU - Konopacky, Quinn

AU - Maire, Jérôme

AU - Marchis, Franck

AU - Marley, Mark S.

AU - Marois, Christian

AU - Millar-Blanchaer, Max

AU - Morzinski, Katie

AU - Norton, Andrew

AU - Oppenheimer, Rebecca

AU - Palmer, David

AU - Patience, Jennifer

AU - Perrin, Marshall

AU - Poyneer, Lisa

AU - Pueyo, Laurent

AU - Rantakyrö, Fredrik T.

AU - Sadakuni, Naru

AU - Saddlemyer, Leslie

AU - Savransky, Dmitry

AU - Serio, Andrew

AU - Sivaramakrishnan, Anand

AU - Song, Inseok

AU - Soummer, Rémi

AU - Thomas, Sandrine

AU - Wallace, J. Kent

AU - Wiktorowicz, Sloane

AU - Wolff, Schuyler

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Using the recently installed Gemini Planet Imager (GPI), we have obtained the first H-band spectrum of the planetary companion to the nearby young star β Pictoris. GPI is designed to image and provide low-resolution spectra of Jupiter-sized, self-luminous planetary companions around young nearby stars. These observations were taken covering the H band (1.65 μm). The spectrum has a resolving power of ∼45 and demonstrates the distinctive triangular shape of a cool substellar object with low surface gravity. Using atmospheric models, we find an effective temperature of 1600-1700K and a surface gravity of log(g) = 3.5-4.5 (cgs units). These values agree well with "hot-start" predictions from planetary evolution models for a gas giant with mass between 10 and 12 MJup and age between 10 and 20 Myr.

AB - Using the recently installed Gemini Planet Imager (GPI), we have obtained the first H-band spectrum of the planetary companion to the nearby young star β Pictoris. GPI is designed to image and provide low-resolution spectra of Jupiter-sized, self-luminous planetary companions around young nearby stars. These observations were taken covering the H band (1.65 μm). The spectrum has a resolving power of ∼45 and demonstrates the distinctive triangular shape of a cool substellar object with low surface gravity. Using atmospheric models, we find an effective temperature of 1600-1700K and a surface gravity of log(g) = 3.5-4.5 (cgs units). These values agree well with "hot-start" predictions from planetary evolution models for a gas giant with mass between 10 and 12 MJup and age between 10 and 20 Myr.

KW - Infrared: general

KW - Instrumentation: adaptive optics

KW - Planetary systems

KW - Stars: individual (beta Pictoris)

KW - Techniques: spectroscopic

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VL - 798

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

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ER -

The first H-band spectrum of the giant planet β Pictoris b

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