ALMA observations of 100 Ophiuchus discs show substructures linked to giant planet formation are common in discs above 10 Earth masses of dust and increase from Class I to Class II stages.
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V1094 Sco's ring-gap pairs result from a ~55 Earth-mass planet at ~100 au and secular gravitational instability at 170-230 au in a disk with weak turbulence allowing midplane dust concentrations.
citing papers explorer
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The Ophiuchus DIsc Survey Employing ALMA (ODISEA). Substructures as a function of SED Class and disc mass in 100 systems
ALMA observations of 100 Ophiuchus discs show substructures linked to giant planet formation are common in discs above 10 Earth masses of dust and increase from Class I to Class II stages.
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A Hybrid Origin for the Multiple Ring-Gap Structures in the Large Protoplanetary Disk V1094 Sco: A Low-Mass Planet and Secular Gravitational Instability
V1094 Sco's ring-gap pairs result from a ~55 Earth-mass planet at ~100 au and secular gravitational instability at 170-230 au in a disk with weak turbulence allowing midplane dust concentrations.