An Exo-Kuiper Belt with an Extended Halo around HD 191089 in Scattered Light

Bin Ren, Élodie Choquet, Marshall D. Perrin, Gaspard Duchěne, John H. Debes, Laurent Pueyo, Malena Rice, Christine Chen, Glenn Schneider, Thomas M. Esposito, Charles A. Poteet, Jason J. Wang, S. Mark Ammons, Megan Ansdell, Pauline Arriaga, Vanessa P. Bailey, Travis Barman, Juan Sebastián Bruzzone, Joanna Bulger, Jeffrey ChilcoteTara Cotten, Robert J. De Rosa, Rene Doyon, Michael P. Fitzgerald, Katherine B. Follette, Stephen J. Goodsell, Benjamin L. Gerard, James R. Graham, Alexandra Z. Greenbaum, J. Brendan Hagan, Pascale Hibon, Dean C. Hines, Li Wei Hung, Patrick Ingraham, Paul Kalas, Quinn Konopacky, James E. Larkin, Bruce Macintosh, Jérôme Maire, Franck Marchis, Christian Marois, Johan Mazoyer, François Ménard, Stanimir Metchev, Maxwell A. Millar-Blanchaer, Tushar Mittal, Margaret Moerchen, Eric L. Nielsen, Mamadou N'Diaye, Rebecca Oppenheimer, David Palmer, Jennifer Patience, Christophe Pinte, Lisa Poyneer, Abhijith Rajan, Julien Rameau, Fredrik T. Rantakyrö, Jean Baptiste Ruffio, Dominic Ryan, Dmitry Savransky, Adam C. Schneider, Anand Sivaramakrishnan, Inseok Song, Rémi Soummer, Christopher Stark, Sandrine Thomas, Arthur Vigan, J. Kent Wallace, Kimberly Ward-Duong, Sloane Wiktorowicz, Schuyler Wolff, Marie Ygouf, Colin Norman

Research output: Contribution to journalArticle

Abstract

We have obtained Hubble Space Telescope STIS and NICMOS and Gemini/GPI scattered-light images of the HD 191089 debris disk. We identify two spatial components: a ring resembling the Kuiper Belt in radial extent (FWHM ∼ 25 au, centered at ∼46 au) and a halo extending to ∼640 au. We find that the halo is significantly bluer than the ring, consistent with the scenario that the ring serves as the "birth ring" for the smaller dust in the halo. We measure the scattering phase functions in the 30°-150° scattering-angle range and find that the halo dust is more forward- and backward-scattering than the ring dust. We measure a surface density power-law index of -0.68 ± 0.04 for the halo, which indicates the slowdown of the radial outward motion of the dust. Using radiative transfer modeling, we attempt to simultaneously reproduce the (visible) total and (near-infrared) polarized intensity images of the birth ring. Our modeling leads to mutually inconsistent results, indicating that more complex models, such as the inclusion of more realistic aggregate particles, are needed.

Original languageEnglish (US)
Article number64
JournalAstrophysical Journal
Volume882
Issue number1
DOIs
StatePublished - Sep 1 2019

Fingerprint

Kuiper belt
halos
dust
rings
scattering
modeling
radiative transfer
near infrared
power law
Hubble Space Telescope
debris
radiant flux density
inclusions

Keywords

  • protoplanetary disks
  • radiative transfer
  • stars: imaging
  • stars: individual (HD 191089)
  • techniques: image processing

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Ren, B., Choquet, É., Perrin, M. D., Duchěne, G., Debes, J. H., Pueyo, L., ... Norman, C. (2019). An Exo-Kuiper Belt with an Extended Halo around HD 191089 in Scattered Light. Astrophysical Journal, 882(1), [64]. https://doi.org/10.3847/1538-4357/ab3403

An Exo-Kuiper Belt with an Extended Halo around HD 191089 in Scattered Light. / Ren, Bin; Choquet, Élodie; Perrin, Marshall D.; Duchěne, Gaspard; Debes, John H.; Pueyo, Laurent; Rice, Malena; Chen, Christine; Schneider, Glenn; Esposito, Thomas M.; Poteet, Charles A.; Wang, Jason J.; Ammons, S. Mark; Ansdell, Megan; Arriaga, Pauline; Bailey, Vanessa P.; Barman, Travis; Bruzzone, Juan Sebastián; Bulger, Joanna; Chilcote, Jeffrey; Cotten, Tara; De Rosa, Robert J.; Doyon, Rene; Fitzgerald, Michael P.; Follette, Katherine B.; Goodsell, Stephen J.; Gerard, Benjamin L.; Graham, James R.; Greenbaum, Alexandra Z.; Hagan, J. Brendan; Hibon, Pascale; Hines, Dean C.; Hung, Li Wei; Ingraham, Patrick; Kalas, Paul; Konopacky, Quinn; Larkin, James E.; Macintosh, Bruce; Maire, Jérôme; Marchis, Franck; Marois, Christian; Mazoyer, Johan; Ménard, François; Metchev, Stanimir; Millar-Blanchaer, Maxwell A.; Mittal, Tushar; Moerchen, Margaret; Nielsen, Eric L.; N'Diaye, Mamadou; Oppenheimer, Rebecca; Palmer, David; Patience, Jennifer; Pinte, Christophe; Poyneer, Lisa; Rajan, Abhijith; Rameau, Julien; Rantakyrö, Fredrik T.; Ruffio, Jean Baptiste; Ryan, Dominic; Savransky, Dmitry; Schneider, Adam C.; Sivaramakrishnan, Anand; Song, Inseok; Soummer, Rémi; Stark, Christopher; Thomas, Sandrine; Vigan, Arthur; Wallace, J. Kent; Ward-Duong, Kimberly; Wiktorowicz, Sloane; Wolff, Schuyler; Ygouf, Marie; Norman, Colin.

In: Astrophysical Journal, Vol. 882, No. 1, 64, 01.09.2019.

Research output: Contribution to journalArticle

Ren, B, Choquet, É, Perrin, MD, Duchěne, G, Debes, JH, Pueyo, L, Rice, M, Chen, C, Schneider, G, Esposito, TM, Poteet, CA, Wang, JJ, Ammons, SM, Ansdell, M, Arriaga, P, Bailey, VP, Barman, T, Bruzzone, JS, Bulger, J, Chilcote, J, Cotten, T, De Rosa, RJ, Doyon, R, Fitzgerald, MP, Follette, KB, Goodsell, SJ, Gerard, BL, Graham, JR, Greenbaum, AZ, Hagan, JB, Hibon, P, Hines, DC, Hung, LW, Ingraham, P, Kalas, P, Konopacky, Q, Larkin, JE, Macintosh, B, Maire, J, Marchis, F, Marois, C, Mazoyer, J, Ménard, F, Metchev, S, Millar-Blanchaer, MA, Mittal, T, Moerchen, M, Nielsen, EL, N'Diaye, M, Oppenheimer, R, Palmer, D, Patience, J, Pinte, C, Poyneer, L, Rajan, A, Rameau, J, Rantakyrö, FT, Ruffio, JB, Ryan, D, Savransky, D, Schneider, AC, Sivaramakrishnan, A, Song, I, Soummer, R, Stark, C, Thomas, S, Vigan, A, Wallace, JK, Ward-Duong, K, Wiktorowicz, S, Wolff, S, Ygouf, M & Norman, C 2019, 'An Exo-Kuiper Belt with an Extended Halo around HD 191089 in Scattered Light', Astrophysical Journal, vol. 882, no. 1, 64. https://doi.org/10.3847/1538-4357/ab3403
Ren B, Choquet É, Perrin MD, Duchěne G, Debes JH, Pueyo L et al. An Exo-Kuiper Belt with an Extended Halo around HD 191089 in Scattered Light. Astrophysical Journal. 2019 Sep 1;882(1). 64. https://doi.org/10.3847/1538-4357/ab3403
Ren, Bin ; Choquet, Élodie ; Perrin, Marshall D. ; Duchěne, Gaspard ; Debes, John H. ; Pueyo, Laurent ; Rice, Malena ; Chen, Christine ; Schneider, Glenn ; Esposito, Thomas M. ; Poteet, Charles A. ; Wang, Jason J. ; Ammons, S. Mark ; Ansdell, Megan ; Arriaga, Pauline ; Bailey, Vanessa P. ; Barman, Travis ; Bruzzone, Juan Sebastián ; Bulger, Joanna ; Chilcote, Jeffrey ; Cotten, Tara ; De Rosa, Robert J. ; Doyon, Rene ; Fitzgerald, Michael P. ; Follette, Katherine B. ; Goodsell, Stephen J. ; Gerard, Benjamin L. ; Graham, James R. ; Greenbaum, Alexandra Z. ; Hagan, J. Brendan ; Hibon, Pascale ; Hines, Dean C. ; Hung, Li Wei ; Ingraham, Patrick ; Kalas, Paul ; Konopacky, Quinn ; Larkin, James E. ; Macintosh, Bruce ; Maire, Jérôme ; Marchis, Franck ; Marois, Christian ; Mazoyer, Johan ; Ménard, François ; Metchev, Stanimir ; Millar-Blanchaer, Maxwell A. ; Mittal, Tushar ; Moerchen, Margaret ; Nielsen, Eric L. ; N'Diaye, Mamadou ; Oppenheimer, Rebecca ; Palmer, David ; Patience, Jennifer ; Pinte, Christophe ; Poyneer, Lisa ; Rajan, Abhijith ; Rameau, Julien ; Rantakyrö, Fredrik T. ; Ruffio, Jean Baptiste ; Ryan, Dominic ; Savransky, Dmitry ; Schneider, Adam C. ; Sivaramakrishnan, Anand ; Song, Inseok ; Soummer, Rémi ; Stark, Christopher ; Thomas, Sandrine ; Vigan, Arthur ; Wallace, J. Kent ; Ward-Duong, Kimberly ; Wiktorowicz, Sloane ; Wolff, Schuyler ; Ygouf, Marie ; Norman, Colin. / An Exo-Kuiper Belt with an Extended Halo around HD 191089 in Scattered Light. In: Astrophysical Journal. 2019 ; Vol. 882, No. 1.
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AU - Choquet, Élodie

AU - Perrin, Marshall D.

AU - Duchěne, Gaspard

AU - Debes, John H.

AU - Pueyo, Laurent

AU - Rice, Malena

AU - Chen, Christine

AU - Schneider, Glenn

AU - Esposito, Thomas M.

AU - Poteet, Charles A.

AU - Wang, Jason J.

AU - Ammons, S. Mark

AU - Ansdell, Megan

AU - Arriaga, Pauline

AU - Bailey, Vanessa P.

AU - Barman, Travis

AU - Bruzzone, Juan Sebastián

AU - Bulger, Joanna

AU - Chilcote, Jeffrey

AU - Cotten, Tara

AU - De Rosa, Robert J.

AU - Doyon, Rene

AU - Fitzgerald, Michael P.

AU - Follette, Katherine B.

AU - Goodsell, Stephen J.

AU - Gerard, Benjamin L.

AU - Graham, James R.

AU - Greenbaum, Alexandra Z.

AU - Hagan, J. Brendan

AU - Hibon, Pascale

AU - Hines, Dean C.

AU - Hung, Li Wei

AU - Ingraham, Patrick

AU - Kalas, Paul

AU - Konopacky, Quinn

AU - Larkin, James E.

AU - Macintosh, Bruce

AU - Maire, Jérôme

AU - Marchis, Franck

AU - Marois, Christian

AU - Mazoyer, Johan

AU - Ménard, François

AU - Metchev, Stanimir

AU - Millar-Blanchaer, Maxwell A.

AU - Mittal, Tushar

AU - Moerchen, Margaret

AU - Nielsen, Eric L.

AU - N'Diaye, Mamadou

AU - Oppenheimer, Rebecca

AU - Palmer, David

AU - Patience, Jennifer

AU - Pinte, Christophe

AU - Poyneer, Lisa

AU - Rajan, Abhijith

AU - Rameau, Julien

AU - Rantakyrö, Fredrik T.

AU - Ruffio, Jean Baptiste

AU - Ryan, Dominic

AU - Savransky, Dmitry

AU - Schneider, Adam C.

AU - Sivaramakrishnan, Anand

AU - Song, Inseok

AU - Soummer, Rémi

AU - Stark, Christopher

AU - Thomas, Sandrine

AU - Vigan, Arthur

AU - Wallace, J. Kent

AU - Ward-Duong, Kimberly

AU - Wiktorowicz, Sloane

AU - Wolff, Schuyler

AU - Ygouf, Marie

AU - Norman, Colin

PY - 2019/9/1

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N2 - We have obtained Hubble Space Telescope STIS and NICMOS and Gemini/GPI scattered-light images of the HD 191089 debris disk. We identify two spatial components: a ring resembling the Kuiper Belt in radial extent (FWHM ∼ 25 au, centered at ∼46 au) and a halo extending to ∼640 au. We find that the halo is significantly bluer than the ring, consistent with the scenario that the ring serves as the "birth ring" for the smaller dust in the halo. We measure the scattering phase functions in the 30°-150° scattering-angle range and find that the halo dust is more forward- and backward-scattering than the ring dust. We measure a surface density power-law index of -0.68 ± 0.04 for the halo, which indicates the slowdown of the radial outward motion of the dust. Using radiative transfer modeling, we attempt to simultaneously reproduce the (visible) total and (near-infrared) polarized intensity images of the birth ring. Our modeling leads to mutually inconsistent results, indicating that more complex models, such as the inclusion of more realistic aggregate particles, are needed.

AB - We have obtained Hubble Space Telescope STIS and NICMOS and Gemini/GPI scattered-light images of the HD 191089 debris disk. We identify two spatial components: a ring resembling the Kuiper Belt in radial extent (FWHM ∼ 25 au, centered at ∼46 au) and a halo extending to ∼640 au. We find that the halo is significantly bluer than the ring, consistent with the scenario that the ring serves as the "birth ring" for the smaller dust in the halo. We measure the scattering phase functions in the 30°-150° scattering-angle range and find that the halo dust is more forward- and backward-scattering than the ring dust. We measure a surface density power-law index of -0.68 ± 0.04 for the halo, which indicates the slowdown of the radial outward motion of the dust. Using radiative transfer modeling, we attempt to simultaneously reproduce the (visible) total and (near-infrared) polarized intensity images of the birth ring. Our modeling leads to mutually inconsistent results, indicating that more complex models, such as the inclusion of more realistic aggregate particles, are needed.

KW - protoplanetary disks

KW - radiative transfer

KW - stars: imaging

KW - stars: individual (HD 191089)

KW - techniques: image processing

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