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  Detection of Continuum Submillimeter Emission Associated with Candidate Protoplanets

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.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0005-D359-9 Version Permalink: https://hdl.handle.net/21.11116/0000-0005-D35A-8
Genre: Journal Article

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https://ui.adsabs.harvard.edu/abs/2019ApJ...879L..25I (Any fulltext)
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 Creators:
Isella, Andrea1, Author
Benisty, Myriam1, Author
Teague, Richard1, Author
Bae, Jaehan1, Author
Keppler, Miriam1, Author
Facchini, Stefano1, Author
Pérez, Laura1, Author
Affiliations:
1Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners, ou_2421692              

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Free keywords: instrumentation: high angular resolution instrumentation: interferometers planetary systems planet-disk interactions planets and satellites: formation protoplanetary disks Astrophysics - Earth and Planetary Astrophysics Astrophysics - Solar and Stellar Astrophysics
 Abstract: We present the discovery of a spatially unresolved source of submillimeter continuum emission (Œª = 855 Œºm) associated with a young planet, PDS 70 c, recently detected in HŒ± 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‚àí3 M ‚äï and 4.2 10‚àí3 M ‚äï. 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‚àí4 and 10‚àí5. Furthermore, we report the discovery of another compact continuum source located 0.‚Ä≥074 ¬± 0.‚Ä≥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.

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 Dates: 2019
 Publication Status: Issued
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Title: The Astrophysical Journal
Source Genre: Journal
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Pages: - Volume / Issue: 879 Sequence Number: - Start / End Page: - Identifier: -