Submillimeter emission associated with candidate protoplanets. (arXiv:1906.06308v1 [astro-ph.EP])
<a href="http://arxiv.org/find/astro-ph/1/au:+Isella_A/0/1/0/all/0/1">Andrea Isella</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Benisty_M/0/1/0/all/0/1">Myriam Benisty</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Teague_R/0/1/0/all/0/1">Richard Teague</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bae_J/0/1/0/all/0/1">Jaehan Bae</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Keppler_M/0/1/0/all/0/1">Miriam Keppler</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Facchini_S/0/1/0/all/0/1">Stefano Facchini</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Perez_L/0/1/0/all/0/1">Laura M P&#xe9;rez</a>

We present the discovery of a spatially unresolved source of sub-millimeter
continuum emission ($lambda=855$ $mu$m) associated with a young planet, PDS
70 c, recently detected in H$alpha$ 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 $2times10^{-3}$ and $4.2 times 10^{-3}$ Earth
masses. 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 $10^{-4}-10^{-5}$. Furthermore, we report the discovery of another
compact continuum source located $0.074”pm0.013”$ South-West 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.

We present the discovery of a spatially unresolved source of sub-millimeter
continuum emission ($lambda=855$ $mu$m) associated with a young planet, PDS
70 c, recently detected in H$alpha$ 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 $2times10^{-3}$ and $4.2 times 10^{-3}$ Earth
masses. 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 $10^{-4}-10^{-5}$. Furthermore, we report the discovery of another
compact continuum source located $0.074”pm0.013”$ South-West 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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