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. 2019 Apr 16;116(16):7605-7607.
doi: 10.1073/pnas.1904572116.

Inner Workings: Newborn stars don't have enough dust to build planets. What are the missing ingredients?

Nola Taylor Redd

Inner Workings: Newborn stars don't have enough dust to build planets. What are the missing ingredients?

Nola Taylor Redd. Proc Natl Acad Sci U S A. .
No abstract available

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Figures

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Astronomers have typically had difficulty peering into the dusty planet nurseries formed from newborn stars. But in the past few years, they’re starting to get glimpses—and important clues as to exactly how planets form. Image credit: Shutterstock/Neo Edmund.
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ALMA in Chile captured this disc of rotating, leftover material surrounding the young star HD 163296. The gaps between the rings are likely the result of a depletion of dust; astronomers also found less gas in the middle and outer gaps. Both features suggest the presence of newly formed planets. Image credit: ESO, ALMA (ESO/NAOJ/NRAO); A. Isella; B. Saxton (NRAO/AUI/NSF).
See this image and copyright information in PMC

References

    1. Manara CF. Why do protoplanetary disks appear not massive enough to form the known exoplanet population? Astron Astrophys. 2018;618:L3.
    1. Levison HF, Kretke KA, Duncan MJ. Growing the gas-giant planets by the gradual accumulation of pebbles. Nature. 2015;524:322–324. - PubMed
    1. McClure MK. Mass measurements in protoplanetary disks from hydrogen deuteride. Astrophys J. 2016;831:167.

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