Images of embedded Jovian planet formation at a wide separation around AB Aurigae - Archive ouverte HAL Access content directly
Journal Articles Nature Astronomy Year : 2022

Images of embedded Jovian planet formation at a wide separation around AB Aurigae

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Thayne Currie
Kellen Lawson
Glenn Schneider
  • Function : Author
Wladimir Lyra
  • Function : Author
John Wisniewski
Carol Grady
Olivier Guyon
Motohide Tamura
Takayuki Kotani
  • Function : Author
Hajime Kawahara
  • Function : Author
Timothy Brandt
Taichi Uyama
Takayuki Muto
  • Function : Author
Ruobing Dong
Tomoyuki Kudo
Jun Hashimoto
Misato Fukagawa
Kevin Wagner
Julien Lozi
Jeffrey Chilcote
Taylor Tobin
Tyler Groff
Kimberly Ward-Duong
  • Function : Author
William Januszewski
  • Function : Author
Barnaby Norris
  • Function : Author
Peter Tuthill
  • Function : Author
Nienke van Der Marel
  • Function : Author
Michael Sitko
Vincent Deo
Sebastien Vievard
Nemanja Jovanovic
Nour Skaf

Abstract

Direct images of protoplanets embedded in disks around infant stars provide the key to understanding the formation of gas giant planets such as Jupiter. Using the Subaru Telescope and the Hubble Space Telescope, we find evidence for a Jovian protoplanet around AB Aurigae orbiting at a wide projected separation (~93 au), probably responsible for multiple planet-induced features in the disk. Its emission is reproducible as reprocessed radiation from an embedded protoplanet. We also identify two structures located at 430-580 au that are candidate sites of planet formation. These data reveal planet formation in the embedded phase and a protoplanet discovery at wide, >50 au separations characteristic of most imaged exoplanets. With at least one clump-like protoplanet and multiple spiral arms, the AB Aur system may also provide the evidence for a long-considered alternative to the canonical model for Jupiter's formation, namely disk (gravitational) instability.

Dates and versions

insu-03656899 , version 1 (02-05-2022)

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Thayne Currie, Kellen Lawson, Glenn Schneider, Wladimir Lyra, John Wisniewski, et al.. Images of embedded Jovian planet formation at a wide separation around AB Aurigae. Nature Astronomy, 2022, ⟨10.1038/s41550-022-01634-x⟩. ⟨insu-03656899⟩
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