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Journal Article

Detection of Continuum Submillimeter Emission Associated with Candidate Protoplanets

MPS-Authors

Isella,  Andrea
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Benisty,  Myriam
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Teague,  Richard
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Bae,  Jaehan
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Keppler,  Miriam
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Facchini,  Stefano
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Pérez,  Laura
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

External Resource

https://ui.adsabs.harvard.edu/abs/2019ApJ...879L..25I
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Citation

Isella, A., Benisty, M., Teague, R., Bae, J., Keppler, M., Facchini, S., et al. (2019). Detection of Continuum Submillimeter Emission Associated with Candidate Protoplanets. The Astrophysical Journal, 879.


Cite as: https://hdl.handle.net/21.11116/0000-0005-D359-9
Abstract
We present the discovery of a spatially unresolved source of submillimeter continuum emission (λ = 855 μm) associated with a young planet, PDS 70 c, recently detected in Hα emission around the 5 Myr old T Tauri star PDS 70. We interpret the emission as originating from a dusty circumplanetary disk with a dust mass between 2 10−3 M ⊕ and 4.2 10−3 M ⊕. Assuming a standard gas-to-dust ratio of 100, the ratio between the total mass of the circumplanetary disk and the mass of the central planet would be between 10−4 and 10−5. Furthermore, we report the discovery of another compact continuum source located 0.″074 ± 0.″013 southwest of a second known planet in this system, PDS 70 b, that was previously detected in near-infrared images. We speculate that the latter source might trace dust orbiting in proximity of the planet, but more sensitive observations are required to unveil its nature.