How Fast Is It - 06 - Gravitational Lensing
Text https://howfarawayisit.com/wp-content/uploads/2023/06/Gravitational-Lensing-1.pdf
Credits https://howfarawayisit.com/wp-content/uploads/2013/05/Credits-and-Research.pdf
In this segment of the “How Fast Is It” video book, we cover gravitational lensing. First, we illustrate how the light is bent, followed by some Einstein Ring examples. We then cover the lens itself: how it magnifies; how it distorts; and how images are mapped back to the source celestial object. We also cover critical curves that can magnify an object by thousands of times. We use Abell 68 and MACS 1206 as examples. We cover flickering quasars and how they can be used to calculate the Hubble constant. We follow that with multiple Type 1a supernovae image timings that can also be used to calculate the Hubble constant. We use the supernova Refsdal with its Einstein Cross as an example. We then cover lensing galaxies like Hamilton’s Object, Starburst Arc and Abell 1689-zD1. We finish with lensing stars namely Icarus and Earendel.
Music
@00:00 Rachmaninoff - Symphony No. 2 Adagio - Sofia Philharmonic Orchestra; from the album “Sergie Rachmaninoff Symphony No. 2”, 2011
@14:37 Rachmaninoff - Piano Concerto No 2 in C minor – from the album “The Most Relaxing Classical Music Ever”, 1993
@23:30 Rachmaninoff - Rhapsody on a Theme of Paganini - Variation 18 - from the album “The Most Relaxing Classical Music Ever”, 1997
Видео How Fast Is It - 06 - Gravitational Lensing канала David Butler
Credits https://howfarawayisit.com/wp-content/uploads/2013/05/Credits-and-Research.pdf
In this segment of the “How Fast Is It” video book, we cover gravitational lensing. First, we illustrate how the light is bent, followed by some Einstein Ring examples. We then cover the lens itself: how it magnifies; how it distorts; and how images are mapped back to the source celestial object. We also cover critical curves that can magnify an object by thousands of times. We use Abell 68 and MACS 1206 as examples. We cover flickering quasars and how they can be used to calculate the Hubble constant. We follow that with multiple Type 1a supernovae image timings that can also be used to calculate the Hubble constant. We use the supernova Refsdal with its Einstein Cross as an example. We then cover lensing galaxies like Hamilton’s Object, Starburst Arc and Abell 1689-zD1. We finish with lensing stars namely Icarus and Earendel.
Music
@00:00 Rachmaninoff - Symphony No. 2 Adagio - Sofia Philharmonic Orchestra; from the album “Sergie Rachmaninoff Symphony No. 2”, 2011
@14:37 Rachmaninoff - Piano Concerto No 2 in C minor – from the album “The Most Relaxing Classical Music Ever”, 1993
@23:30 Rachmaninoff - Rhapsody on a Theme of Paganini - Variation 18 - from the album “The Most Relaxing Classical Music Ever”, 1997
Видео How Fast Is It - 06 - Gravitational Lensing канала David Butler
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Classroom Aid - Gravitationally Lensed GalaxiesClassroom Aid - The Gravitational Lens ItselfClassroom Aid - Gravitationally Lensed StarsClassroom Aid - Gravitationally Lensed SupernovaeClassroom Aid - Flickering Quasars to the Hubble ConstantClassroom Aid - Gravitational Lensing IntroductionClassroom Aid - Mercury's Orbit TestClassroom Aid - Pound Rebka ExperimentClassroom Aid - Mercury's Orbit Test xxHow Fast Is It - 05 - General Relativity II - Tests (4k)Classroom Aid - Gravitational Time DilationClassroom Aid - Light Cone TippingClassroom Aid - The Sun Bending Light TestHow Fast Is It - 04 - General Relativity 1 - Geometry (4K)Classroom Aid - Riemannian Curvature TensorClassroom Aid - Non-Euclidean GeometryClassroom Aid - Einstein Field EquationsClassroom Aid - Riemannian Curvature Tensor xyClassroom Aid - Measuring GeodesicsClassroom Aid - Non-Euclidian Geometry xy