期刊
SCIENCE
卷 366, 期 6461, 页码 90-+出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aaw3491
关键词
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资金
- Max Planck Society
- European Research Council (ERC) [PALs 320620]
- MINECO (Spain) [AYA2017-84390-02]
- CNPq (Brazil)
- FAPEMIG (Brazil)
The majority of stars are part of gravitationally bound stellar systems, such as binaries. Observations of protobinary systems constrain the conditions that lead to stellar multiplicity and subsequent orbital evolution. We report high-angular resolution observations of the circumbinary disk around [BHB2007] 11, a young binary protostar system. The two protostars are embedded in circumstellar disks that have radii of 2 to 3 astronomical units and probably contain a few Jupiter masses. These systems are surrounded by a complex structure of filaments connecting to the larger circumbinary disk. We also observe accretion and radio jets associated with the protobinary system. The accretion is preferentially onto the lower-mass protostar, consistent with theoretical predictions.
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