VLBI with SKA: Possible Arrays and Astrometric Science Article Swipe
Yingjie Li
,
Ye Xu
,
Jingjing Li
,
Shuaibo Bian
,
Zehao Lin
,
Chaojie Hao
,
Dejian Liu
·
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.48550/arxiv.2404.14663
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.48550/arxiv.2404.14663
The next generation of very long baseline interferometry (VLBI) is stepping into the era of microarcsecond ($μ$as) astronomy, and pushing astronomy, especially astrometry, to new heights. VLBI with the Square Kilometre Array (SKA), SKA-VLBI, will increase current sensitivity by an order of magnitude, and reach astrometric precision routinely below 10 $μ$as, even challenging 1 $μ$as. This advancement allows precise parallax and proper motion measurements of various celestial objects. Such improvements can be used to study objects (including isolated objects, and binary or multiple systems) in different stellar stages (such as star formation, main-sequence stars, asymptotic giant branch stars, pulsars, black holes, white dwarfs, etc.), unveil the structure and evolution of complex systems (such as the Milky Way), benchmark the international celestial reference frame, and reveal cosmic expansion. Furthermore, the theory of general relativity can also be tested with SKA-VLBI using precise measurements of light deflection under the gravitational fields of different solar system objects and the perihelion precession of solar system objects.
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Metadata
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- preprint
- Language
- en
- Landing Page
- http://arxiv.org/abs/2404.14663
- https://arxiv.org/pdf/2404.14663
- OA Status
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- OpenAlex ID
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All OpenAlex metadata
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VLBI with SKA: Possible Arrays and Astrometric ScienceWork 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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2024-04-23Full publication date if available
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Yingjie Li, Ye Xu, Jingjing Li, Shuaibo Bian, Zehao Lin, Chaojie Hao, Dejian LiuList of authors in order
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https://arxiv.org/abs/2404.14663Publisher landing page
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https://arxiv.org/pdf/2404.14663Direct 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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Very-long-baseline interferometry, Astrometry, Astronomy, Computer science, Remote sensing, Data science, Geology, Physics, StarsTop concepts (fields/topics) attached by OpenAlex
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