TY - JOUR
T1 - Images of embedded Jovian planet formation at a wide separation around AB Aurigae
AU - Currie, Thayne
AU - Lawson, Kellen
AU - Schneider, Glenn
AU - Lyra, Wladimir
AU - Wisniewski, John
AU - Grady, Carol
AU - Guyon, Olivier
AU - Tamura, Motohide
AU - Kotani, Takayuki
AU - Kawahara, Hajime
AU - Brandt, Timothy
AU - Uyama, Taichi
AU - Muto, Takayuki
AU - Dong, Ruobing
AU - Kudo, Tomoyuki
AU - Hashimoto, Jun
AU - Fukagawa, Misato
AU - Wagner, Kevin
AU - Lozi, Julien
AU - Chilcote, Jeffrey
AU - Tobin, Taylor
AU - Groff, Tyler
AU - Ward-Duong, Kimberly
AU - Januszewski, William
AU - Norris, Barnaby
AU - Tuthill, Peter
AU - van der Marel, Nienke
AU - Sitko, Michael
AU - Deo, Vincent
AU - Vievard, Sebastien
AU - Jovanovic, Nemanja
AU - Martinache, Frantz
AU - Skaf, Nour
N1 - Funding Information: We thank A. Boccaletti for many helpful conversations regarding the AB Aur protoplanetary disk and system properties. Z. Zhu generously provided circumplanetary disk models; S. Blunt provided expert advice on MCMC-based orbit fitting. We thank the Subaru, NASA-Keck and Hubble Space Telescope Time Allocation committees for their generous allotment of observing time. This research is based in part on data collected at Subaru Telescope, which is operated by the National Astronomical Observatory of Japan. We acknowledge the very significant cultural role and reverence that the summit of Maunakea holds within the Hawaiian community. We are most fortunate to have the opportunity to conduct observations from this mountain. This paper makes use of the following ALMA data: 2012.1.00303.S. ALMA is a partnership of ESO (representing its member states), NSF (USA) and NINS (Japan), together with NRC (Canada) and NSC and ASIAA (Taiwan), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO and NAOJ. This work was partially funded under NASA/XRP programmes 80NSSC20K0252 and NNX17AF88G. The development of SCExAO was supported by the Japan Society for the Promotion of Science (Grant-in-Aid for Research nos. 23340051, 26220704, 23103002, 19H00703 and 19H00695 and partly 18H05442, 15H02063, and 22000005), the Astrobiology Center of the National Institutes of Natural Sciences, Japan, the Mt Cuba Foundation and the director’s contingency fund at Subaru Telescope. Funding Information: We thank A. Boccaletti for many helpful conversations regarding the AB Aur protoplanetary disk and system properties. Z. Zhu generously provided circumplanetary disk models; S. Blunt provided expert advice on MCMC-based orbit fitting. We thank the Subaru, NASA-Keck and Hubble Space Telescope Time Allocation committees for their generous allotment of observing time. This research is based in part on data collected at Subaru Telescope, which is operated by the National Astronomical Observatory of Japan. We acknowledge the very significant cultural role and reverence that the summit of Maunakea holds within the Hawaiian community. We are most fortunate to have the opportunity to conduct observations from this mountain. This paper makes use of the following ALMA data: 2012.1.00303.S. ALMA is a partnership of ESO (representing its member states), NSF (USA) and NINS (Japan), together with NRC (Canada) and NSC and ASIAA (Taiwan), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO and NAOJ. This work was partially funded under NASA/XRP programmes 80NSSC20K0252 and NNX17AF88G. The development of SCExAO was supported by the Japan Society for the Promotion of Science (Grant-in-Aid for Research nos. 23340051, 26220704, 23103002, 19H00703 and 19H00695 and partly 18H05442, 15H02063, and 22000005), the Astrobiology Center of the National Institutes of Natural Sciences, Japan, the Mt Cuba Foundation and the director’s contingency fund at Subaru Telescope. Publisher Copyright: © 2022, The Author(s), under exclusive licence to Springer Nature Limited.
PY - 2022/6
Y1 - 2022/6
N2 - 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.
AB - 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.
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U2 - 10.1038/s41550-022-01634-x
DO - 10.1038/s41550-022-01634-x
M3 - Article
SN - 2397-3366
VL - 6
SP - 751
EP - 759
JO - Nature Astronomy
JF - Nature Astronomy
IS - 6
ER -