Gravitational Lensing Hubble
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Hubbles sensitivity and high resolution allow it to see faint and distant gravitational lenses that cannot be detected with ground based telescopes whose images are blurred by the earths atmosphere.
The gravitational lensing effect means that they have been able to determine fascinating insights about the galaxy that would not normally be visible even with hubble.
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Gravitational lensing hubble. In 1929 edwin hubble confirmed that galaxies are receding from us with a speed proportional to their distance. This effect called gravitational lensing is only visible in rare cases and only the best telescopes can observe the related phenomena. This hubble space telescope photo released feb. By combining the power of a natural lens in space with the capability of nasas hubble space telescope astronomers made a surprising discoverythe first example of a compact yet massive fast spinning disk shaped galaxy that stopped making stars only a few billion years after the big bang.
Esahubble nasa suyu et al. Hubble pushed beyond limits to spot clumps of new stars in distant galaxy jul 6 2017 compass and scale image for galaxy cluster sdss j11106459 lensed galaxy sgas j11102006459508. A gravitational lens is a distribution of matter such as a cluster of galaxies between a distant light source and an observer that is capable of bending the light from the source as the light travels towards the observerthis effect is known as gravitational lensing and the amount of bending is one of the predictions of albert einsteins general theory of relativity. 2 2012 shows a distant galaxy 10 billion light years away shown as as it appears through the gravitational lens around the galaxy cluster rcs2.
This image from the nasaesa hubble space te. Gravitational lensing measurements push hubble constant discrepancy past 5s. Hubbles data will also provide a basis and guide for the james webb space telescope whose infrared observations will push yet farther into the cosmos. Among their discoveries is that the distant galaxys stars are very old meaning that galaxies probably formed earlier in cosmic history than we first thought.
V h 0 das late as the mid 1990s the value of the proportionality constant h 0 the hubble constant was known only to be somewhere between 50 and 90 kms per megaparsec see the article by mario livio and adam riess physics today october. Galaxy clusters are some of the most massive structures that can be found in the universe large groups of galaxies bound together by gravity. When combined with measurements of the cosmic microwave background a reflection of the spatial.