© Autonomous Nonprofit Organization “TV-Novosti”, 2005–2020. The scientists theorise that the supernova disrupted the white dwarf's orbit with its partner star when it very abruptly ejected a large proportion of its mass. In this study, the scientists also found that the white dwarf was traveling about 560,000 miles per hour (900,000 kilometers per hour) in the opposite direction of the way the galaxy is rotating. The second type of supernova occurs at the end of a single star's lifetime. 'It would have been a type of supernova, but of a kind that that we haven't seen before,' he explained. The work was published in The Astrophysical Journal Letters.

The data in the infrared band obtained from NASA’s Spitzer Space Telescope have also provided information on the amount of gas and dust collected from the cloud while expanding into interstellar space. ” Without the radioactive nickel that powers the long-lasting afterglow of the Type Ia supernovae, the explosion that sent SDSS1240+6710 hurtling across our Galaxy would have been a brief flash of light that would have been difficult to discover. "That's what makes this white dwarf unique — it did undergo nuclear burning, but stopped before it got to iron," Gänsicke said. Suspiciously though, the “iron group” of elements (iron, nickel, chromium, and manganese) which would normally also be left behind after the thermonuclear storm of a supernova were missing, indicating that the white dwarf only experienced a partial supernova before jetting off elsewhere in the Milky Way.
Altogether, the team says that the white dwarf once belonged to a binary pair, before some kind of partial supernova sent both stars shooting off in different directions. Much remains unknown about the white dwarf's companion, but the researchers think it could have been a white dwarf much like SDSS J1240+6710. This scenario would help to explain the white dwarf's speed, puny size and bizarre atmosphere. Reserve your timed-entry tickets. The nearest known white dwarf is Sirius B, at 8.6 light years, the smaller component of the Sirius binary star. Astronomers were able to measure the white dwarf's velocity and found that it is travelling at 559,234 miles per hour.

Piecing together these bizarre characteristics, the team came to one conclusion: somehow the star underwent a partial supernova, but survived. Weirder still, this star is absolutely pelting through the Milky Way. Our sun will one day become a white dwarf, as will more than 90% of the stars in the Milky Way.

Space is part of Future US Inc, an international media group and leading digital publisher. Criminals behind July's infamous 'Twitter hack' accessed famous accounts by duping employees working from... Trove of artifacts dating back some 9,500 years are uncovered in the Alpine glaciers due to ice melting from... Rare white baby sea turtle discovered on a South Carolina beach was born with a genetic disorder that causes... Facebook rejected more than 2 MILLION ads since March for trying to 'obstruct voting' in the upcoming US... Facebook claims it has registered 2.5 MILLION Americans to vote and aims to help four million before... SDSS J124043.01+671034.68: the partially burned remnant of a low-mass white dwarf that underwent thermonuclear ignition? White dwarf to the supernova « The information is also in the black holes. “The explosion in a single white dwarf near the limit of its mass and a merger of two white dwarfs in fact produce significantly different quantities of these elements.” The team also measured the iron and chromium present in the cloud since these are elements that are produced in all type Ia supernovae and allow us to standardize the calculations. In a new study, scientists zeroed in on the white dwarf SDSS J1240+6710, located about 1,430 light-years from Earth. Scientists have detected a white dwarf star blazing across the Milky Way galaxy at 900,000kph, having been fired from a potentially new kind of supernova which acted like a nuclear slingshot. In textbook thermonuclear Type 1a supernovae, a … White dwarfs are the burnt-out cores left over after red giant stars die, and typically boast a very particular chemical composition. Read RT Privacy policy to find out more. 'It has all the key features of a white dwarf but it has this very high velocity and unusual abundances that make no sense when combined with its low mass. Using the Hubble Space Telescope, the scientists also identified carbon, sodium, and aluminium in the star's atmosphere, all of which are produced in the first thermonuclear reactions of a supernova.

Now open! 200 Central Park West Think your friends would be interested? The results indicate that the explosion, which took place thousands of years ago, was triggered by a single white dwarf.

A white dwarf is so dense that fusion sweeps rapidly out from the center, releasing the tremendous energy that blows the star apart. At the time, astronomers noted that the object had an unusual composition. "The explosion isn't powerful enough to totally disrupt the star.". Astronomers observed a flash of ultraviolet light after a white dwarf star exploded in a supernova, marking only the second time such an event has been observed. 'There is clearly a whole zoo out there. Subscribe to RT newsletter to get stories the mainstream media won’t tell you, Illustration © University of Warwick/Mark Garlick, Incredibly rare glimpse of one of universe’s biggest EXPLOSIONS captured by scientists (PHOTO), Internet implodes after AOC says only entitled moaners think cancel culture exists (in a post complaining about her critics), ‘How Islam moderated slavery’: BBC blasted for piece explaining the ‘nice’ way to treat humans as property, ‘Destructive ideas’: Russia accuses US state-run media of spreading fake information about constitutional amendment vote, ‘All who don’t kowtow to BLM must be destroyed’ – this new Inquisition wants to dismantle the America we know, Turkish president Erdogan signs decree turning Istanbul's Hagia Sofia into a mosque after court ruling, ‘Threat to the community’? The observations made in April 2005 indicate that 3C 397 has collected a mass of about 18 times that of the original white dwarf. “All of these facts imply that it must have come from some kind of close binary system and it must have undergone thermonuclear ignition,” says Boris Gaensicke, lead author of the study. Researchers in this new study used the Hubble Space Telescope to take a closer look at the white dwarf and they identified carbon, sodium and aluminum in the object's atmosphere.


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