Circumbinary, not transitional: On the spiral arms, cavity, shadows, fast radial flows, streamers, and horseshoe in the HD142527 disc

Daniel J. Price, Nicolás Cuello, Christophe Pinte, Daniel Mentiplay, Simon Casassus, Valentin Christiaens, Grant M. Kennedy, Jorge Cuadra, M. Sebastian Perez, Sebastian Marino, Philip J. Armitage, Alice Zurlo, Attila Juhasz, Enrico Ragusa, Guillaume Laibe, Giuseppe Lodato

Research output: Contribution to journalArticleResearchpeer-review

Abstract

We present 3D hydrodynamical models of the HD142527 protoplanetary disc, a bright and well-studied disc that shows spirals and shadows in scattered light around a 100 au gas cavity, a large horseshoe dust structure in mm continuum emission, together with mysterious fast radial flows and streamers seen in gas kinematics. By considering several possible orbits consistent with the observed arc, we show that all of the main observational features can be explained by one mechanism - the interaction between the disc and the observed binary companion. We find that the spirals, shadows, and horseshoe are only produced in the correct position angles by a companion on an inclined and eccentric orbit approaching periastron - the 'red' family from Lacour et al. Dust-gas simulations show radial and azimuthal concentration of dust around the cavity, consistent with the observed horseshoe. The success of this model in the HD142527 disc suggests other mm-bright transition discs showing cavities, spirals, and dust asymmetries may also be explained by the interaction with central companions.

Original languageEnglish
Pages (from-to)1270-1284
Number of pages15
JournalMonthly Notices of the Royal Astronomical Society
Volume477
Issue number1
DOIs
Publication statusPublished - 11 Jun 2018

Keywords

  • Accretion
  • Accretion discs
  • Binaries: General
  • Planet-disc interactions
  • Protoplanetary discs
  • Submillimetre: Planetary systems

Cite this

Price, Daniel J. ; Cuello, Nicolás ; Pinte, Christophe ; Mentiplay, Daniel ; Casassus, Simon ; Christiaens, Valentin ; Kennedy, Grant M. ; Cuadra, Jorge ; Sebastian Perez, M. ; Marino, Sebastian ; Armitage, Philip J. ; Zurlo, Alice ; Juhasz, Attila ; Ragusa, Enrico ; Laibe, Guillaume ; Lodato, Giuseppe. / Circumbinary, not transitional : On the spiral arms, cavity, shadows, fast radial flows, streamers, and horseshoe in the HD142527 disc. In: Monthly Notices of the Royal Astronomical Society. 2018 ; Vol. 477, No. 1. pp. 1270-1284.
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title = "Circumbinary, not transitional: On the spiral arms, cavity, shadows, fast radial flows, streamers, and horseshoe in the HD142527 disc",
abstract = "We present 3D hydrodynamical models of the HD142527 protoplanetary disc, a bright and well-studied disc that shows spirals and shadows in scattered light around a 100 au gas cavity, a large horseshoe dust structure in mm continuum emission, together with mysterious fast radial flows and streamers seen in gas kinematics. By considering several possible orbits consistent with the observed arc, we show that all of the main observational features can be explained by one mechanism - the interaction between the disc and the observed binary companion. We find that the spirals, shadows, and horseshoe are only produced in the correct position angles by a companion on an inclined and eccentric orbit approaching periastron - the 'red' family from Lacour et al. Dust-gas simulations show radial and azimuthal concentration of dust around the cavity, consistent with the observed horseshoe. The success of this model in the HD142527 disc suggests other mm-bright transition discs showing cavities, spirals, and dust asymmetries may also be explained by the interaction with central companions.",
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year = "2018",
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Price, DJ, Cuello, N, Pinte, C, Mentiplay, D, Casassus, S, Christiaens, V, Kennedy, GM, Cuadra, J, Sebastian Perez, M, Marino, S, Armitage, PJ, Zurlo, A, Juhasz, A, Ragusa, E, Laibe, G & Lodato, G 2018, 'Circumbinary, not transitional: On the spiral arms, cavity, shadows, fast radial flows, streamers, and horseshoe in the HD142527 disc' Monthly Notices of the Royal Astronomical Society, vol. 477, no. 1, pp. 1270-1284. https://doi.org/10.1093/mnras/sty647

Circumbinary, not transitional : On the spiral arms, cavity, shadows, fast radial flows, streamers, and horseshoe in the HD142527 disc. / Price, Daniel J.; Cuello, Nicolás; Pinte, Christophe; Mentiplay, Daniel; Casassus, Simon; Christiaens, Valentin; Kennedy, Grant M.; Cuadra, Jorge; Sebastian Perez, M.; Marino, Sebastian; Armitage, Philip J.; Zurlo, Alice; Juhasz, Attila; Ragusa, Enrico; Laibe, Guillaume; Lodato, Giuseppe.

In: Monthly Notices of the Royal Astronomical Society, Vol. 477, No. 1, 11.06.2018, p. 1270-1284.

Research output: Contribution to journalArticleResearchpeer-review

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T2 - On the spiral arms, cavity, shadows, fast radial flows, streamers, and horseshoe in the HD142527 disc

AU - Price, Daniel J.

AU - Cuello, Nicolás

AU - Pinte, Christophe

AU - Mentiplay, Daniel

AU - Casassus, Simon

AU - Christiaens, Valentin

AU - Kennedy, Grant M.

AU - Cuadra, Jorge

AU - Sebastian Perez, M.

AU - Marino, Sebastian

AU - Armitage, Philip J.

AU - Zurlo, Alice

AU - Juhasz, Attila

AU - Ragusa, Enrico

AU - Laibe, Guillaume

AU - Lodato, Giuseppe

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N2 - We present 3D hydrodynamical models of the HD142527 protoplanetary disc, a bright and well-studied disc that shows spirals and shadows in scattered light around a 100 au gas cavity, a large horseshoe dust structure in mm continuum emission, together with mysterious fast radial flows and streamers seen in gas kinematics. By considering several possible orbits consistent with the observed arc, we show that all of the main observational features can be explained by one mechanism - the interaction between the disc and the observed binary companion. We find that the spirals, shadows, and horseshoe are only produced in the correct position angles by a companion on an inclined and eccentric orbit approaching periastron - the 'red' family from Lacour et al. Dust-gas simulations show radial and azimuthal concentration of dust around the cavity, consistent with the observed horseshoe. The success of this model in the HD142527 disc suggests other mm-bright transition discs showing cavities, spirals, and dust asymmetries may also be explained by the interaction with central companions.

AB - We present 3D hydrodynamical models of the HD142527 protoplanetary disc, a bright and well-studied disc that shows spirals and shadows in scattered light around a 100 au gas cavity, a large horseshoe dust structure in mm continuum emission, together with mysterious fast radial flows and streamers seen in gas kinematics. By considering several possible orbits consistent with the observed arc, we show that all of the main observational features can be explained by one mechanism - the interaction between the disc and the observed binary companion. We find that the spirals, shadows, and horseshoe are only produced in the correct position angles by a companion on an inclined and eccentric orbit approaching periastron - the 'red' family from Lacour et al. Dust-gas simulations show radial and azimuthal concentration of dust around the cavity, consistent with the observed horseshoe. The success of this model in the HD142527 disc suggests other mm-bright transition discs showing cavities, spirals, and dust asymmetries may also be explained by the interaction with central companions.

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KW - Binaries: General

KW - Planet-disc interactions

KW - Protoplanetary discs

KW - Submillimetre: Planetary systems

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