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R. Barrett and P. P. Delsanto
Fig. 7.12 Hubble telescope photograph of Galaxy NGC 4993 on 22nd August, 2017.
The box in the image (and enlarged inset) shows the optical flare from two colliding
neutron stars. Within 6 days, the flare had faded to invisibility. Image: NASA/Swift
(The image was released by NASA/Swift. https://www.nasa.gov/press-release/nasa-mis
sions-catch-first-light-from-a-gravitational-wave-event (accessed 2020/05.27))
To end on a human note, this recent discovery of gravitational waves is
a triumph of perseverance for many, now elderly, physicists, who have spent
their whole professional lives on what many believed would be a fruitless
search.
References
1. Newton I (1979) Opticks. Dover, New York
2. Soares DSL (2009) Newtonian gravitational deflection of light revisited. https://
arxiv.org/pdf/physics/0508030.pdf. Accessed 26 May 2020
3. Ellis R et al (2009) 90 years on—the 1919 eclipse expedition at Príncipe. Astron
Geophys 50(4):4.12–4.15. https://doi.org/10.1111/j.1468-4004.2009.50412.x.
Accessed 26 May 2020
R. Barrett and P. P. Delsanto
Fig. 7.12 Hubble telescope photograph of Galaxy NGC 4993 on 22nd August, 2017.
The box in the image (and enlarged inset) shows the optical flare from two colliding
neutron stars. Within 6 days, the flare had faded to invisibility. Image: NASA/Swift
(The image was released by NASA/Swift. https://www.nasa.gov/press-release/nasa-mis
sions-catch-first-light-from-a-gravitational-wave-event (accessed 2020/05.27))
To end on a human note, this recent discovery of gravitational waves is
a triumph of perseverance for many, now elderly, physicists, who have spent
their whole professional lives on what many believed would be a fruitless
search.
References
1. Newton I (1979) Opticks. Dover, New York
2. Soares DSL (2009) Newtonian gravitational deflection of light revisited. https://
arxiv.org/pdf/physics/0508030.pdf. Accessed 26 May 2020
3. Ellis R et al (2009) 90 years on—the 1919 eclipse expedition at Príncipe. Astron
Geophys 50(4):4.12–4.15. https://doi.org/10.1111/j.1468-4004.2009.50412.x.
Accessed 26 May 2020