Gravitational lens time delays and gravitational waves
Using Fermat's principle, we analyze the effects of very long wavelength gravitational waves upon the images of a gravitationally lensed quasar. We show that the lens equation in the presence of gravity waves is equivalent to that of a lens with a different alignment between source, deflector,...
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todo:paper_05562821_v50_n8_p4895_Frieman2023-10-03T15:35:29Z Gravitational lens time delays and gravitational waves Frieman, J.A. Harari, D.D. Surpi, G.C. Using Fermat's principle, we analyze the effects of very long wavelength gravitational waves upon the images of a gravitationally lensed quasar. We show that the lens equation in the presence of gravity waves is equivalent to that of a lens with a different alignment between source, deflector, and observer in the absence of gravity waves. Contrary to a recent claim, we conclude that measurements of time delays in gravitational lenses cannot serve as a method to detect or constrain a stochastic background of gravitational waves of cosmological wavelengths, because the wave-induced time delay is observationally indistinguishable from an intrinsic time delay due to the lens geometry. © 1994 The American Physical Society. Fil:Harari, D.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Surpi, G.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_05562821_v50_n8_p4895_Frieman |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
Using Fermat's principle, we analyze the effects of very long wavelength gravitational waves upon the images of a gravitationally lensed quasar. We show that the lens equation in the presence of gravity waves is equivalent to that of a lens with a different alignment between source, deflector, and observer in the absence of gravity waves. Contrary to a recent claim, we conclude that measurements of time delays in gravitational lenses cannot serve as a method to detect or constrain a stochastic background of gravitational waves of cosmological wavelengths, because the wave-induced time delay is observationally indistinguishable from an intrinsic time delay due to the lens geometry. © 1994 The American Physical Society. |
| format |
JOUR |
| author |
Frieman, J.A. Harari, D.D. Surpi, G.C. |
| spellingShingle |
Frieman, J.A. Harari, D.D. Surpi, G.C. Gravitational lens time delays and gravitational waves |
| author_facet |
Frieman, J.A. Harari, D.D. Surpi, G.C. |
| author_sort |
Frieman, J.A. |
| title |
Gravitational lens time delays and gravitational waves |
| title_short |
Gravitational lens time delays and gravitational waves |
| title_full |
Gravitational lens time delays and gravitational waves |
| title_fullStr |
Gravitational lens time delays and gravitational waves |
| title_full_unstemmed |
Gravitational lens time delays and gravitational waves |
| title_sort |
gravitational lens time delays and gravitational waves |
| url |
http://hdl.handle.net/20.500.12110/paper_05562821_v50_n8_p4895_Frieman |
| work_keys_str_mv |
AT friemanja gravitationallenstimedelaysandgravitationalwaves AT hararidd gravitationallenstimedelaysandgravitationalwaves AT surpigc gravitationallenstimedelaysandgravitationalwaves |
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1782024936412413952 |