Image 1 Caption: Click on placeholder Image 1 to get Image 2 which what yours truly wants to show.
Image 1 is an artist's conception orbits of HD 188753, a hierachical triple-star system. There is hot Jupiter exoplanet (NOT shown) orbiting the primary star.
Image Caption 2: Image 2 is the copyrighted artist's conception of the PSR J0337+1715 system in the news-and-views article General relativity verified by a triple-star system, (Clifford M. Will, 2018, Nature) (see also the research article Universality of free fall from the orbital motion of a pulsar in a stellar triple system (Archibald et al., 2018, Nature)). There is a resemblance between the two triple-star systems of Image 1 and Image 2.
The PSR J0337+1715 system gives a strong verification of general relativity (GR), in particular the equivalence principle, in particular the strong equivalence principle.
Among other things, the confirmation really gives a sound basis to the modern GR concept of inertial frames.
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Images:
- Credit/Permission:
NASA,
JPL,
Caltech,
before or circa 2007
(uploaded to Wikimedia Commons
by User:Poppy,
2007) /
Public domain.
Image link: Wikimedia: Orbit of HD 188753. A placeholder image for Image 2.
- Credit/Permission:
Nature (journal),
2018 / No permission.
Image link: General relativity verified by a triple-star system, (Clifford M. Will, 2018, Nature).
Image link direct: PSR J0337+1715 system.
File: Neutron star file: pulsar_PSR_J0337+1715_GR_test.html.