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Author (up) Mulders, G.D.; Pascucci, I.; Ciesla, F.J.; Fernandes, R.B. doi  openurl
  Title The Mass Budgets and Spatial Scales of Exoplanet Systems and Protoplanetary Disks Type
  Year 2021 Publication Astrophysical Journal Abbreviated Journal Astrophys. J.  
  Volume 920 Issue 2 Pages 66  
  Keywords MINIMUM-MASS; PLANET OCCURRENCE; DEBRIS DISCS; CLASS-II; NEBULA; STAR; MULTIPLICITY; PROJECT  
  Abstract Planets are born from disks of gas and dust, and observations of protoplanetary disks are used to constrain the initial conditions of planet formation. However, dust mass measurements of Class II disks with ALMA have called into question whether they contain enough solids to build the exoplanets that have been detected to date. In this paper, we calculate the mass and spatial scale of solid material around Sun-like stars probed by transit and radial velocity exoplanet surveys and compare those to the observed dust masses and sizes of Class II disks in the same stellar-mass regime. We show that the apparent mass discrepancy disappears when accounting for observational selection and detection biases. We find a discrepancy only when the planet formation efficiency is below 100%, or if there is a population of undetected exoplanets that significantly contributes to the mass in solids. We identify a positive correlation between the masses of planetary systems and their respective orbital periods, which is consistent with the trend between the masses and the outer radii of Class II dust disks. This implies that, despite a factor 100 difference in spatial scale, the properties of protoplanetary disks seem to be imprinted on the exoplanet population.  
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  Series Volume Series Issue Edition  
  ISSN 0004-637X ISBN Medium  
  Area 0004-637X Expedition Conference  
  Notes WOS:000707456200001 Approved  
  Call Number UAI @ alexi.delcanto @ Serial 1475  
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