interior structure of jupiter - ast.cam.ac.uk · giant planet formation may involve fragmentation...
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Interior structure of Jupiter
Further constraints via Juno mission (arr. July 2016)
Giant planet formation may involve fragmentation of
gravitationally unstable gas disc
N.B. Min fragment scale set by gravity vs. pressure Max. fragment scale by gravity versus shear
Typical initial mass should be ~ a Jupiter mass
Or `core accretion’
Sets in at core mass ~ 10 -20 M_E
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Probing the dust and gas reservoirs in protoplanetary discs
Molecular lines and continuum emission from optically thin dust
both produce mm emission • Revolutionised by Atacama Large Millimetre
Array (ALMA)
The disc of HL Tau
• Continuum image (ALMA Science Verification Data)
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