5 papers
Hourly radio variability of PDS70c from time-differential photometry
Simon Casassus, Miguel Carcamo, Oriana Dominguez-Jamett +5
The radio emission mechanisms from accreting protoplanets, and their variability, link observations and physical properties. We revisit the variability of the ~343GHz (ALMA Band7)…
Multi-frequency observations of PDS 70c: Radio emission mechanisms in the circum-planetary environment
Oriana DomÃnguez-Jamett, Simon Casassus, Hauyu Baobab Liu +7
PDS 70c is a source of Ha emission and variable sub-mm signal. Understanding its emission mechanisms may enable observations of accretion rates and physical conditions in the circu…
Resurgence of CO in a warm bubble around accreting protoplanets and its observability
O. Chrenko, S. Casassus, R. O. Chametla
The cold outer regions of protoplanetary disks are expected to contain a midplane-centered layer where gas-phase CO molecules freeze out and their overall abundance is low. The lay…
Dust-void evolution driven by turbulent dust flux can induce runaway migration of Earth-mass planets
R. O. Chametla, O. Chrenko, F. S. Masset +2
Torques from asymmetric dust structures (so-called dust-void and filamentary structures) formed around low-mass planets embedded in a non turbulent dust-gas disk can exceed the tor…
Pebble-driven migration of low-mass planets in the 2D regime of pebble accretion
O. Chrenko, R. O. Chametla, F. S. Masset +2
<Context> Pebbles drifting past a disk-embedded low-mass planet develop asymmetries in their distribution and exert a substantial gravitational torque on the planet, thus modifying…