New confirmation of Einstein's General Theory of Relativity. This illustration reveals how the gravity of a white dwarf star warps space and bends the light of a distant star behind it. Credit: NASA, ESA, and A. Feild (STSc. I). Albert Einstein predicted that whenever light from a distant star passes by a closer object, gravity acts as a kind of magnifying lens, brightening and bending the distant starlight. Yet, in a 1. 93. 6 article in the journal Science, he added that because stars are so far apart "there is no hope of observing this phenomenon directly.". Now, an international research team directed by Kailash C. Sahu has done just that, as described in their June 9, 2. Watch High Tomb Online Free 2016 here.

Science. The study is believed to be the first report of a particular type of Einstein's "gravitational microlensing" by a star other than the sun. In a related perspective piece in Science, entitled "A centennial gift from Einstein," Terry Oswalt of Embry- Riddle Aeronautical University says the discovery opens a new window to understanding "the history and evolution of galaxies such as our own."More specifically, Oswalt adds, "The research by Sahu and colleagues provides a new tool for determining the masses of objects we can't easily measure by other means. The team determined the mass of a collapsed stellar remnant called a white dwarf star. Such objects have completed their hydrogen- burning life cycle, and thus are the fossils of all prior generations of stars in our Galaxy, the Milky Way."Oswalt, an astronomer and chair of the Department of Physical Sciences at Embry- Riddle's Daytona Beach, Florida campus, says further, "Einstein would be proud. One of his key predictions has passed a very rigorous observational test."The video will load shortly. This time- lapse movie, made from eight Hubble Space Telescope images, shows the apparent motion of the white dwarf star Stein 2. B as it passes in front of a distant star.

The observations were taken between Oct. Oct. 1. 4, 2. 01. The path of Stein 2. B, due to its proper motion combined with its parallax due to the motion the Earth around the Sun, is shown by the wavy cyan line. Its proper motion in one year is shown by an arrow. Its parallax, enlarged by a factor of 5, is shown by an ellipse. Credit: NASA, ESA, and K.

Sahu (STSc. I)Understanding 'Einstein Rings'The gravitational microlensing of stars, predicted by Einstein, has previously been observed. Famously, in 1. 91. Sun provided one of the first convincing proofs of Einstein's general theory of relativity - a guiding law of physics that describes gravity as a geometric function of both space and time, or spacetime."When a star in the foreground passes exactly between us and a background star," Oswalt explains, "gravitational microlensing results in a perfectly circular ring of light - a so- called 'Einstein ring.'". Astronomers made the Hubble observations of the white dwarf, the burned- out core of a normal star, and the faint background star over a two- year period. Hubble observed the dead star passing in front of the background star, deflecting its light.

During the close alignment, the distant starlight appeared offset by about 2 milliarcseconds from its actual position. This deviation is so small that it is equivalent to observing an ant crawl across the surface of a quarter from 1,5. From this measurement, astronomers calculated that the white dwarf’s mass is roughly 6. Credit: NASA, ESA, and K.

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Sahu (STSc. I). Sahu's group observed a much more likely scenario: Two objects were slightly out of alignment, and therefore an asymmetrical version of an Einstein ring formed. The ring and its brightening were too small to be measured, but its asymmetry caused the distant star to appear off- center from its true position," Oswalt says. This part of Einstein's prediction is called 'astrometric lensing' and Sahu's team was the first to observe it in a star other than the Sun."Sahu, an astronomer at the Space Telescope Science Institute in Baltimore, Maryland, took advantage of the superior angular resolution of the Hubble Space Telescope (HST). Sahu's team measured shifts in the apparent position of a distant star as its light was deflected around a nearby white dwarf star called Stein 2. B on eight dates between October 2.

October 2. 01. 5. They determined that Stein 2. B - the sixth- closest white dwarf star to the Sun - has a mass that is about two- thirds that of the sun."The basic idea is that the apparent deflection of the background star's position is directly related to the mass and gravity of the white dwarf - and how close the two came to exactly lining up," explains Oswalt. The video will load shortly. This animation shows the motion of a white dwarf star passing in front of a distant background star. Watch Pink Floyd The Wall Online (2017).

During the passage, the faraway star appears to change its position slightly, because its light path has been altered by the white dwarf’s gravity. When the white dwarf Stein 2. B passed in front of a background star, the distant star’s light was offset by only about 2 milliarcseconds from its actual position. This deviation is so small that it is equivalent to observing an ant crawl across the surface of a quarter from 1,5. From this measurement, astronomers calculated that the white dwarf’s mass is roughly 6. Credit: NASA, ESA, and G.

Bacon (STSc. I)Among astronomers, the findings are significant for at least three reasons, according to Oswalt: First, the research "solves a long- standing mystery about the mass and composition of Stein 2. B," he says. Second, he notes, "Sahu's team nicely confirms astrophysicist Subrahmanyan Chandrasekhar's 1. Nobel Prize- winning theory about the relationship between the mass and radius of white dwarf stars. We now know that Stein 2. B is perfectly normal; it's not a massive white dwarf with an exotic composition, as has been believed for nearly a century."Third, Oswalt concludes, "This new tool for determining masses will be very valuable as huge new surveys uncover many other chance alignments over the next few years.".

Looks can be deceiving. In this Hubble Space Telescope image, the white dwarf star Stein 2. B and the smaller star below it appear to be close neighbors. Watch Exposed Hindi Full Movie. The stars, however, reside far away from each other.

Turnitin creates tools for K-12 and higher education that improve writing and prevent plagiarism. Turnitin’s formative feedback and originality checking services. This time-lapse movie, made from eight Hubble Space Telescope images, shows the apparent motion of the white dwarf star Stein 2051 B as it passes in front of a. E! Online - Your source for entertainment news, celebrities, celeb news, and celebrity gossip. Check out the hottest fashion, photos, movies and TV shows! Bhoomi (2017), action drama released in Hindi language in theatre near you in. Know about Film reviews, lead cast & crew, photos & video gallery on BookMyShow. Online file sharing and storage - 15 GB free web space. Easy registration. File upload progressor. Multiple file transfer. Fast download. Free porn sex videos & pussy movies. Porn hub is the ultimate xxx porn,sex and pussy tube, download sex videos or stream free xxx and free sex movies. SnagFilms Watch Free Streaming Movies Online. Each year some 20,000 Chinese immigrants arrive in New York from Taiwan and Hong Kong.

Stein 2. 05. 1B is 1. Earth; the other star is about 5,0. Stein 2. 05. 1B is named for its discoverer, Dutch Roman Catholic priest and astronomer Johan Stein. Credit: NASA, ESA, and K. Sahu (STSc. I). For the average star- gazer, he says, the findings are meaningful because "at least 9.

Galaxy, including the Sun, will become or already are white dwarfs - they tell us about our future, as well as our history."The video will load shortly. Dr. Terry Oswalt discusses results from a new study by Sahu et al., reporting the first successful measurement of a star’s weight using Einstein’s theory of general relativity. Dr. Oswalt gives a physical demonstration using props to show how a star’s gravity deflects light. Scientists can then use this deflection of light to calculate the weight of star. Credit: Embry- Riddle Aeronautical University / Robert H. Score. Explore further: A rare opportunity for planet hunting in Alpha Centauri A predicted for 2.

More information. K. C. Sahu el al., "Relativistic deflection of background starlight measures the mass of a nearby white dwarf star," Science (2. A centennial gift from Einstein," Science (2. Journal reference: Science.

Provided by. Embry- Riddle Aeronautical University.

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