DISCOVERY of A SUBSTELLAR COMPANION to the NEARBY DEBRIS DISK HOST HR 2562

Quinn M. Konopacky; Julien Rameau; Gaspard Duchêne; Joseph C. Filippazzo; Paige A Giorla Godfrey; Christian Marois; Eric L. Nielsen; Laurent Pueyo; Roman R. Rafikov; Emily L. Rice; Jason J. Wang; S. Mark Ammons; Vanessa P. Bailey; Travis S. Barman; Joanna Bulger; Sebastian Bruzzone; Jeffrey K. Chilcote; Tara Cotten; Rebekah I. Dawson; Robert J De Rosa; René Doyon; Thomas M. Esposito; Michael P. Fitzgerald; Katherine B. Follette; Stephen Goodsell; James R. Graham; Alexandra Z. Greenbaum; Pascale Hibon; Li Wei Hung; Patrick Ingraham; Paul Kalas; David Lafrenière; James E. Larkin; Bruce A. Macintosh; Jérôme Maire; Franck Marchis; Mark S. Marley; Brenda C. Matthews; Stanimir Metchev; Maxwell A. Millar-Blanchaer; Rebecca Oppenheimer; David W. Palmer; Jennifer Patience; Marshall D. Perrin; Lisa A. Poyneer; Abhijith Rajan; Fredrik T. Rantakyrö; Dmitry Savransky; Adam C. Schneider; Anand Sivaramakrishnan; Inseok Song; Remi Soummer; Sandrine Thomas; J. Kent Wallace; Kimberly Ward-Duong; Sloane J. Wiktorowicz; Schuyler G. Wolff

doi:10.3847/2041-8205/829/1/L4

DISCOVERY of A SUBSTELLAR COMPANION to the NEARBY DEBRIS DISK HOST HR 2562

Quinn M. Konopacky, Julien Rameau, Gaspard Duchêne, Joseph C. Filippazzo, Paige A Giorla Godfrey, Christian Marois, Eric L. Nielsen, Laurent Pueyo, Roman R. Rafikov, Emily L. Rice, Jason J. Wang, S. Mark Ammons, Vanessa P. Bailey, Travis S. Barman, Joanna Bulger, Sebastian Bruzzone, Jeffrey K. Chilcote, Tara Cotten, Rebekah I. Dawson, Robert J De RosaRené Doyon, Thomas M. Esposito, Michael P. Fitzgerald, Katherine B. Follette, Stephen Goodsell, James R. Graham, Alexandra Z. Greenbaum, Pascale Hibon, Li Wei Hung, Patrick Ingraham, Paul Kalas, David Lafrenière, James E. Larkin, Bruce A. Macintosh, Jérôme Maire, Franck Marchis, Mark S. Marley, Brenda C. Matthews, Stanimir Metchev, Maxwell A. Millar-Blanchaer, Rebecca Oppenheimer, David W. Palmer, Jennifer Patience, Marshall D. Perrin, Lisa A. Poyneer, Abhijith Rajan, Fredrik T. Rantakyrö, Dmitry Savransky, Adam C. Schneider, Anand Sivaramakrishnan, Inseok Song, Remi Soummer, Sandrine Thomas, J. Kent Wallace, Kimberly Ward-Duong, Sloane J. Wiktorowicz, Schuyler G. Wolff

Earth and Space Exploration, School of (SESE)

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

63 Scopus citations

Abstract

We present the discovery of a brown dwarf companion to the debris disk host star HR 2562. This object, discovered with the Gemini Planet Imager (GPI), has a projected separation of 20.3 ± 0.3 au (0.″618 ± 0. ″004) from the star. With the high astrometric precision afforded by GPI, we have confirmed, to more than 5?, the common proper motion of HR 2562B with the star, with only a month-long time baseline between observations. Spectral data in the J-, H-, and K-bands show a morphological similarity to L/T transition objects. We assign a spectral type of L7 ± 3 to HR 2562Band derive a luminosity of log(L_bol/L_⊙) = -4.62 ± 0.12, corresponding to a mass of 30 ± 15 M_Jup from evolutionary models at an estimated age of the system of 300-900 Myr. Although the uncertainty in the age of the host star is significant, the spectra and photometry exhibit several indications of youth for HR 2562B. The source has a position angle that is consistent with an orbit in the same plane as the debris disk recently resolved with Herschel. Additionally, it appears to be interior to the debris disk. Though the extent of the inner hole is currently too uncertain to place limits on the mass of HR 2562B, future observations of the disk with higher spatial resolution may be able to provide mass constraints. This is the first brown-dwarf-mass object found to reside in the inner hole of a debris disk, offering the opportunity to search for evidence of formation above the deuterium burning limit in a circumstellar disk.

Original language	English (US)
Article number	L4
Journal	Astrophysical Journal Letters
Volume	829
Issue number	1
DOIs	https://doi.org/10.3847/2041-8205/829/1/L4
State	Published - Sep 20 2016

Keywords

brown dwarfs
instrumentation: adaptive optics
planet-disk interactions
stars: individual (HR 2562)

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/2041-8205/829/1/L4

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Konopacky, Q. M., Rameau, J., Duchêne, G., Filippazzo, J. C., Godfrey, P. A. G., Marois, C., Nielsen, E. L., Pueyo, L., Rafikov, R. R., Rice, E. L., Wang, J. J., Ammons, S. M., Bailey, V. P., Barman, T. S., Bulger, J., Bruzzone, S., Chilcote, J. K., Cotten, T., Dawson, R. I., ... Wolff, S. G. (2016). DISCOVERY of A SUBSTELLAR COMPANION to the NEARBY DEBRIS DISK HOST HR 2562. Astrophysical Journal Letters, 829(1), Article L4. https://doi.org/10.3847/2041-8205/829/1/L4

Konopacky, QM, Rameau, J, Duchêne, G, Filippazzo, JC, Godfrey, PAG, Marois, C, Nielsen, EL, Pueyo, L, Rafikov, RR, Rice, EL, Wang, JJ, Ammons, SM, Bailey, VP, Barman, TS, Bulger, J, Bruzzone, S, Chilcote, JK, Cotten, T, Dawson, RI, Rosa, RJD, Doyon, R, Esposito, TM, Fitzgerald, MP, Follette, KB, Goodsell, S, Graham, JR, Greenbaum, AZ, Hibon, P, Hung, LW, Ingraham, P, Kalas, P, Lafrenière, D, Larkin, JE, Macintosh, BA, Maire, J, Marchis, F, Marley, MS, Matthews, BC, Metchev, S, Millar-Blanchaer, MA, Oppenheimer, R, Palmer, DW, Patience, J, Perrin, MD, Poyneer, LA, Rajan, A, Rantakyrö, FT, Savransky, D, Schneider, AC, Sivaramakrishnan, A, Song, I, Soummer, R, Thomas, S, Wallace, JK, Ward-Duong, K, Wiktorowicz, SJ & Wolff, SG 2016, 'DISCOVERY of A SUBSTELLAR COMPANION to the NEARBY DEBRIS DISK HOST HR 2562', Astrophysical Journal Letters, vol. 829, no. 1, L4. https://doi.org/10.3847/2041-8205/829/1/L4

@article{8d4e5bda5b034d70881be54aa5f2cfa4,

title = "DISCOVERY of A SUBSTELLAR COMPANION to the NEARBY DEBRIS DISK HOST HR 2562",

abstract = "We present the discovery of a brown dwarf companion to the debris disk host star HR 2562. This object, discovered with the Gemini Planet Imager (GPI), has a projected separation of 20.3 ± 0.3 au (0.″618 ± 0. ″004) from the star. With the high astrometric precision afforded by GPI, we have confirmed, to more than 5?, the common proper motion of HR 2562B with the star, with only a month-long time baseline between observations. Spectral data in the J-, H-, and K-bands show a morphological similarity to L/T transition objects. We assign a spectral type of L7 ± 3 to HR 2562Band derive a luminosity of log(Lbol/L⊙) = -4.62 ± 0.12, corresponding to a mass of 30 ± 15 MJup from evolutionary models at an estimated age of the system of 300-900 Myr. Although the uncertainty in the age of the host star is significant, the spectra and photometry exhibit several indications of youth for HR 2562B. The source has a position angle that is consistent with an orbit in the same plane as the debris disk recently resolved with Herschel. Additionally, it appears to be interior to the debris disk. Though the extent of the inner hole is currently too uncertain to place limits on the mass of HR 2562B, future observations of the disk with higher spatial resolution may be able to provide mass constraints. This is the first brown-dwarf-mass object found to reside in the inner hole of a debris disk, offering the opportunity to search for evidence of formation above the deuterium burning limit in a circumstellar disk.",

keywords = "brown dwarfs, instrumentation: adaptive optics, planet-disk interactions, stars: individual (HR 2562)",

author = "Konopacky, {Quinn M.} and Julien Rameau and Gaspard Duch{\^e}ne and Filippazzo, {Joseph C.} and Godfrey, {Paige A Giorla} and Christian Marois and Nielsen, {Eric L.} and Laurent Pueyo and Rafikov, {Roman R.} and Rice, {Emily L.} and Wang, {Jason J.} and Ammons, {S. Mark} and Bailey, {Vanessa P.} and Barman, {Travis S.} and Joanna Bulger and Sebastian Bruzzone and Chilcote, {Jeffrey K.} and Tara Cotten and Dawson, {Rebekah I.} and Rosa, {Robert J De} and Ren{\'e} Doyon and Esposito, {Thomas M.} and Fitzgerald, {Michael P.} and Follette, {Katherine B.} and Stephen Goodsell and Graham, {James R.} and Greenbaum, {Alexandra Z.} and Pascale Hibon and Hung, {Li Wei} and Patrick Ingraham and Paul Kalas and David Lafreni{\`e}re and Larkin, {James E.} and Macintosh, {Bruce A.} and J{\'e}r{\^o}me Maire and Franck Marchis and Marley, {Mark S.} and Matthews, {Brenda C.} and Stanimir Metchev and Millar-Blanchaer, {Maxwell A.} and Rebecca Oppenheimer and Palmer, {David W.} and Jennifer Patience and Perrin, {Marshall D.} and Poyneer, {Lisa A.} and Abhijith Rajan and Rantakyr{\"o}, {Fredrik T.} and Dmitry Savransky and Schneider, {Adam C.} and Anand Sivaramakrishnan and Inseok Song and Remi Soummer and Sandrine Thomas and Wallace, {J. Kent} and Kimberly Ward-Duong and Wiktorowicz, {Sloane J.} and Wolff, {Schuyler G.}",

year = "2016",

month = sep,

day = "20",

doi = "10.3847/2041-8205/829/1/L4",

language = "English (US)",

volume = "829",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

publisher = "IOP Publishing Ltd.",

number = "1",

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TY - JOUR

T1 - DISCOVERY of A SUBSTELLAR COMPANION to the NEARBY DEBRIS DISK HOST HR 2562

AU - Konopacky, Quinn M.

AU - Rameau, Julien

AU - Duchêne, Gaspard

AU - Filippazzo, Joseph C.

AU - Godfrey, Paige A Giorla

AU - Marois, Christian

AU - Nielsen, Eric L.

AU - Pueyo, Laurent

AU - Rafikov, Roman R.

AU - Rice, Emily L.

AU - Wang, Jason J.

AU - Ammons, S. Mark

AU - Bailey, Vanessa P.

AU - Barman, Travis S.

AU - Bulger, Joanna

AU - Bruzzone, Sebastian

AU - Chilcote, Jeffrey K.

AU - Cotten, Tara

AU - Dawson, Rebekah I.

AU - Rosa, Robert J De

AU - Doyon, René

AU - Esposito, Thomas M.

AU - Fitzgerald, Michael P.

AU - Follette, Katherine B.

AU - Goodsell, Stephen

AU - Graham, James R.

AU - Greenbaum, Alexandra Z.

AU - Hibon, Pascale

AU - Hung, Li Wei

AU - Ingraham, Patrick

AU - Kalas, Paul

AU - Lafrenière, David

AU - Larkin, James E.

AU - Macintosh, Bruce A.

AU - Maire, Jérôme

AU - Marchis, Franck

AU - Marley, Mark S.

AU - Matthews, Brenda C.

AU - Metchev, Stanimir

AU - Millar-Blanchaer, Maxwell A.

AU - Oppenheimer, Rebecca

AU - Palmer, David W.

AU - Patience, Jennifer

AU - Perrin, Marshall D.

AU - Poyneer, Lisa A.

AU - Rajan, Abhijith

AU - Rantakyrö, Fredrik T.

AU - Savransky, Dmitry

AU - Schneider, Adam C.

AU - Sivaramakrishnan, Anand

AU - Song, Inseok

AU - Soummer, Remi

AU - Thomas, Sandrine

AU - Wallace, J. Kent

AU - Ward-Duong, Kimberly

AU - Wiktorowicz, Sloane J.

AU - Wolff, Schuyler G.

PY - 2016/9/20

Y1 - 2016/9/20

N2 - We present the discovery of a brown dwarf companion to the debris disk host star HR 2562. This object, discovered with the Gemini Planet Imager (GPI), has a projected separation of 20.3 ± 0.3 au (0.″618 ± 0. ″004) from the star. With the high astrometric precision afforded by GPI, we have confirmed, to more than 5?, the common proper motion of HR 2562B with the star, with only a month-long time baseline between observations. Spectral data in the J-, H-, and K-bands show a morphological similarity to L/T transition objects. We assign a spectral type of L7 ± 3 to HR 2562Band derive a luminosity of log(Lbol/L⊙) = -4.62 ± 0.12, corresponding to a mass of 30 ± 15 MJup from evolutionary models at an estimated age of the system of 300-900 Myr. Although the uncertainty in the age of the host star is significant, the spectra and photometry exhibit several indications of youth for HR 2562B. The source has a position angle that is consistent with an orbit in the same plane as the debris disk recently resolved with Herschel. Additionally, it appears to be interior to the debris disk. Though the extent of the inner hole is currently too uncertain to place limits on the mass of HR 2562B, future observations of the disk with higher spatial resolution may be able to provide mass constraints. This is the first brown-dwarf-mass object found to reside in the inner hole of a debris disk, offering the opportunity to search for evidence of formation above the deuterium burning limit in a circumstellar disk.

AB - We present the discovery of a brown dwarf companion to the debris disk host star HR 2562. This object, discovered with the Gemini Planet Imager (GPI), has a projected separation of 20.3 ± 0.3 au (0.″618 ± 0. ″004) from the star. With the high astrometric precision afforded by GPI, we have confirmed, to more than 5?, the common proper motion of HR 2562B with the star, with only a month-long time baseline between observations. Spectral data in the J-, H-, and K-bands show a morphological similarity to L/T transition objects. We assign a spectral type of L7 ± 3 to HR 2562Band derive a luminosity of log(Lbol/L⊙) = -4.62 ± 0.12, corresponding to a mass of 30 ± 15 MJup from evolutionary models at an estimated age of the system of 300-900 Myr. Although the uncertainty in the age of the host star is significant, the spectra and photometry exhibit several indications of youth for HR 2562B. The source has a position angle that is consistent with an orbit in the same plane as the debris disk recently resolved with Herschel. Additionally, it appears to be interior to the debris disk. Though the extent of the inner hole is currently too uncertain to place limits on the mass of HR 2562B, future observations of the disk with higher spatial resolution may be able to provide mass constraints. This is the first brown-dwarf-mass object found to reside in the inner hole of a debris disk, offering the opportunity to search for evidence of formation above the deuterium burning limit in a circumstellar disk.

KW - brown dwarfs

KW - instrumentation: adaptive optics

KW - planet-disk interactions

KW - stars: individual (HR 2562)

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JO - Astrophysical Journal Letters

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ER -

DISCOVERY of A SUBSTELLAR COMPANION to the NEARBY DEBRIS DISK HOST HR 2562

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