Does the Sun have a Dark Disk? Article Swipe
Gustavo F. S. Alves
,
Susan Gardner
,
Pedro Machado
,
Mohammadreza Zakeri
·
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.48550/arxiv.2406.03607
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.48550/arxiv.2406.03607
The Sun is not quite a perfect sphere, and its oblateness, thought to be induced through its rotation, has been measured using optical observations of its radius. Its gravitational quadrupole moment can then be deduced using solar models, or through helioseismology, and it can also be determined from measurements of its gravitational effects on Mercury's orbit. The various assessments do not appear to agree, with the most complete and precise orbital assessments being in slight excess of other determinations. This may speak to the existence of a non-luminous disk or ring, where we also note evidence for a circumsolar dust ring within Mercury's orbit from the Solar TErrestrial RElations Observatory (STEREO) mission. Historically, too, a protoplanetary disk may have been key to reconciling the Sun's metallicity with its neutrino yield. The distribution of the non-luminous mass within Mercury's orbit can modify the relative size of the optical and orbital quadrupole moments in different ways. We develop how we can use these findings to limit the mass of a dark disk, ring, or halo in the immediate vicinity of the Sun, and we note how future observational studies of the inner solar system can not only refine these constraints but also help to identify and to assess the mass of its dark-matter component.
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Metadata
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- preprint
- Language
- en
- Landing Page
- http://arxiv.org/abs/2406.03607
- https://arxiv.org/pdf/2406.03607
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- 10
- OpenAlex ID
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All OpenAlex metadata
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Does the Sun have a Dark Disk?Work title
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preprintOpenAlex work type
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enPrimary language
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2024Year of publication
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2024-06-05Full publication date if available
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Gustavo F. S. Alves, Susan Gardner, Pedro Machado, Mohammadreza ZakeriList of authors in order
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https://arxiv.org/abs/2406.03607Publisher landing page
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https://arxiv.org/pdf/2406.03607Direct link to full text PDF
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YesWhether a free full text is available
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greenOpen access status per OpenAlex
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https://arxiv.org/pdf/2406.03607Direct OA link when available
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Astrophysics, Astronomy, PhysicsTop concepts (fields/topics) attached by OpenAlex
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0Total citation count in OpenAlex
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10Other works algorithmically related by OpenAlex
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