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Keyword: magnetar

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  • New Type of Astronomical Object Discovered: Massive Magnetic Helium Stars

    08/17/2023 12:32:51 PM PDT · by Red Badger · 18 replies
    Scitech Daily ^ | AUGUST 17, 2023 | By EUROPEAN SOUTHERN OBSERVATORY (ESO)
    Scientists have discovered a star, HD 45166, which is expected to evolve into a magnetar. This star introduces the new category of massive magnetic helium stars and offers clues to the origins of magnetars, which possess the Universe’s most powerful magnetic fields. New Type of Star Gives Clues to Mysterious Origin of Magnetars Magnetars are the strongest magnets in the Universe. These super-dense dead stars with ultra-strong magnetic fields can be found all over our galaxy but astronomers don’t know exactly how they form. Now, using multiple telescopes around the world, including European Southern Observatory (ESO) facilities, researchers have uncovered...
  • Astronomer Have Discovered A Mysterious Object, Which Is 570 Billion Times Brighter Than The Sun

    02/06/2023 5:12:32 PM PST · by entropy12 · 75 replies
    /blog.physics-astronomy ^ | Unknown | Umer Abrar
    Billions of light years away, there is a giant ball of hot gas that is brighter than hundreds of billions of suns. It is hard to imagine something so bright. So what is it? Astronomers are not really sure, but they have a couple theories. They think it may be a very rare type of supernova — called a magnetar — but one so powerful that it pushes the energy limits of physics, or in other words, the most powerful supernova ever seen as of today. This object is so luminous that astronomers are having a really difficult time finding...
  • A New FRB Signal Has Buzzed Nearly 2,000 Times in Just Two Months, Raising a Mystery

    09/24/2022 11:25:33 AM PDT · by BenLurkin · 26 replies
    Science Alert ^ | 24 September 2022 By | MICHELLE STARR
    The object, named FRB 20201124A, was detected with the Five-hundred-meter Aperture Spherical radio Telescope (FAST) in China and described in a new paper led by astronomer Heng Xu of Peking University in China. So far most evidence points to a magnetar – a neutron star with extraordinarily strong magnetic fields – as a source of FRB emissions like this. If FRB 20201124A is indeed from one of these wild cosmic beasts, it's looking like an unusual specimen. Polarization refers to the orientation of light waves in three-dimensional space. By examining how much that orientation has changed since the light departed...
  • Mystery radio signal from space that’s on 157-day cycle just woke up right on schedule

    08/25/2020 8:18:05 AM PDT · by BenLurkin · 43 replies
    n y post ^ | 08/25/2020 | Harry Petitt, the Sun
    The so-called Fast Radio Burst repeats every 157 days with the power of millions of suns and its latest barrage arrived right on time last week. Known as FRB 121102, scientists hope that studying the strange blinkering signal could unlock the secret to what FRBs are and where they come from. Fast Radio Bursts are intense pulses of radio waves that last no longer than the blink of an eye and come from far beyond our Milky Way galaxy. Their origins are unknown. . The group’s findings, to The Astronomer’s Telegram, suggest the burst is currently in its active phase...
  • Mysterious 'fast radio burst' detected closer to Earth than ever before

    08/07/2020 7:21:56 AM PDT · by Red Badger · 27 replies
    www.livescience.com ^ | 08-07-2020 | By Brandon Specktor - Senior Writer
    Most FRBs originate hundreds of millions of light-years away. This one came from inside the Milky Way. Thirty thousand years ago, a dead star on the other side of the Milky Way belched out a powerful mixture of radio and X-ray energy. On April 28, 2020, that belch swept over Earth, triggering alarms at observatories around the world. The signal was there and gone in half a second, but that's all scientists needed to confirm they had detected something remarkable: the first ever "fast radio burst" (FRB) to emanate from a known star within the Milky Way, according to a...
  • "Similar Event Within 100 Light Years of Earth Would Be Catastrophic" --Astronomers...

    07/28/2016 7:54:07 AM PDT · by LibWhacker · 71 replies
    For most of 2016, astronomers have been viewing a ball of hot gas billions of light years away that is radiating the energy of hundreds of billions of suns. At its heart is an object a little larger than 10 miles across. And astronomers are not entirely sure what it is. If, as they suspect, the gas ball is the result of a supernova, then it’s the most powerful supernova ever seen. Most astronomers today believe that one of the plausible reasons we have yet to detect intelligent life in the universe is due to the deadly effects of local...
  • Rahm Emanuel and Magnetar Capital

    04/13/2010 11:24:44 AM PDT · by NativeNewYorker · 10 replies · 524+ views
    ...the hedge fund’s cagey bet on Rahm? Litowitz and his wife had never before made significant political donations. In 2005, they started giving to Rahm and his PACs, and only PACs connected to Rahm, just before the Magnetar CDO program began, and continued through the first quarter of 2008, when the trade would have started to pay out handsomely. The Litowitzs gave a total of $8,000 to Emanuel and $10,000 to his Our Common Values PAC in May 2005. In 2006 and 2007, they contributed $51,700 to the Democratic Congressional Campaign Committee, while Emanuel was chairman. We have been advised...
  • The Hibernating Stellar Magnet: First Optically Active Magnetar-Candidate Discovered

    09/25/2008 5:30:05 PM PDT · by SunkenCiv · 5 replies · 367+ views
    ESO ^ | Wednesday, September 24, 2008 | European Organisation for Astronomical Research in the Southern Hemisphere
    This weird object initially misled its discoverers as it showed up as a gamma-ray burst, suggesting the death of a star in the distant Universe. But soon afterwards, it exhibited some unique behaviour that indicates its origin is much closer to us. After the initial gamma-ray pulse, there was a three-day period of activity during which 40 visible-light flares were observed, followed by a brief near-infrared flaring episode 11 days later, which was recorded by ESO's Very Large Telescope. Then the source became dormant again... The most likely candidate for this mystery object is a 'magnetar' located in our own...
  • Right Before Our Eyes (Pulsar started emitting powerful bursts of x-rays like a magnetar.)

    02/23/2008 9:05:41 PM PST · by neverdem · 48 replies · 188+ views
    ScienceNOW Daily News ^ | 21 February 2008 | Phil Berardelli
    Enlarge ImageGrowing pains. This artist's conception shows a neutron star known as a magnetar crackling with extremely powerful magnetic activity.Credit: Gregg Dinderman/Sky & Telescope "When you hear hoofbeats," the old saying goes, "think horse, not zebra." But what if your horse suddenly grows zebra stripes? That's the predicament astronomers faced when a star they were observing--a rapidly spinning remnant of a supernova called a pulsar--started emitting powerful bursts of x-rays considered the hallmark of a much-rarer object called a magnetar. The finding strongly suggests that pulsars, also known as neutron stars, and magnetars are linked and paves the way...
  • Gamma-Ray Burst Leads Scientists to See Supernova in Action

    08/31/2006 12:01:15 AM PDT · by neverdem · 11 replies · 763+ views
    Scientific American ^ | August 30, 2006 | David Biello
    A star in a galaxy about 440 million light-years away released in a few seconds more energy than the sun will over the course of its entire lifetime, according to observations made on February 18. A high-energy jet of x-rays shot out from the doomed star's core and was captured by the Burst Alert Telescope on NASA's Swift satellite. The satellite relayed the information to astronomers on the ground, and within days a wide array of telescopes turned to the exploding object. Meanwhile the other telescopes on Swift continued to observe the unusually long-lived burst; it lasted 40 minutes compared...
  • Mystery Object Found in Supernova's Heart (Magnetar?)

    07/06/2006 1:40:38 PM PDT · by NormsRevenge · 32 replies · 3,651+ views
    Embedded in the heart of a supernova remnant 10,000 light-years away is a stellar object the likes of which astronomers have never seen before in our galaxy. At first glance, the object looks like a densely packed stellar corpse known as a neutron star surrounded by a bubble of ejected stellar material, exactly what would be expected in the wake of a supernova explosion. However, a closer 24.5-hour examination with the European Space Agency's XMM Newton X-ray satellite reveals that the energetic X-ray emissions of the blue, point-like object cycles every 6.7 hours-tens of thousands of times longer than expected...
  • Earthquakes and Tsunamis are triggered by Star-quakes

    03/06/2005 11:09:03 PM PST · by bd476 · 131 replies · 1,924+ views
    India Daily News ^ | March 7, 2005
    Earthquakes and Tsunamis are triggered by Star-quakes – the invisible interconnection between different parts of the Universe The position of SGR1806-20 in a radio image of the sky - 50,000 light-years away Staff Reporter Mar. 7, 2005 Computer models are showing an interesting relationship between star-quakes and earthquakes. Supernova, star-quakes and similar burst of energy in the Universe triggers earthquakes and tsunamis. According to researchers, most of the large earthquakes and Tsunamis happened when there was a burst of energy somewhere in the cosmos. According to BBC, Astronomers say they have been stunned by the amount of energy released in...
  • Strange Space Burst Could Be New Object (Big 'Burper')

    03/02/2005 5:21:21 PM PST · by NormsRevenge · 20 replies · 779+ views
    Reuters on Yahoo ^ | 3/2/05 | Reuters - Washington
    WASHINGTON (Reuters) - A strange and powerful burst of radio waves from near the center of our galaxy may have come from a previously unknown type of space object, U.S. astronomers reported on Wednesday. Other experts nicknamed the mysterious source a "burper" and said there would be a race to scan for similar radio bursts. "We hit the jackpot," said Scott Hyman, a professor of physics at Sweet Briar College in Virginia, who led the study. "An image of the Galactic center, made by collecting radio waves of about 1 meter (3 feet) in wavelength, revealed multiple bursts from the...
  • Cosmic Explosion Among the Brightest in Recorded History

    02/18/2005 12:19:03 PM PST · by PatrickHenry · 54 replies · 4,007+ views
    NASA ^ | 18 February 2005 | Staff
    Scientists have detected a flash of light from across the Galaxy so powerful that it bounced off the Moon and lit up the Earth's upper atmosphere. The flash was brighter than anything ever detected from beyond our Solar System and lasted over a tenth of a second. NASA and European satellites and many radio telescopes detected the flash and its aftermath on December 27, 2004. Two science teams report about this event at a special press event today at NASA headquarters. The scientists said the light came from a "giant flare" on the surface of an exotic neutron star, called...
  • Starburst Was One of Brightest Objects Observed on Earth

    02/18/2005 9:31:11 PM PST · by neverdem · 38 replies · 9,593+ views
    NY Times ^ | February 18, 2005 | KENNETH CHANG
    For a fraction of a second in December, a dying remnant of an exploded star let out a burst of light that outshone the Milky Way's other half-trillion stars combined, astronomers announced today. Even on Earth, half a galaxy away, the starburst was one of the brightest objects ever observed in the sky, after the Sun and perhaps a few comets. The magnitude of the event caught most astronomers by surprise. "Whoppingly bright," said Dr. Brian Gaensler, an astronomer at the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass. "It gave off more energy in 0.2 seconds than the Sun does...
  • Brightest Galactic Flash Ever Detected Hits Earth

    02/18/2005 6:11:56 PM PST · by Servant of the 9 · 73 replies · 3,443+ views
    Space.Com ^ | 18 February, 2005 | Robert Roy Britt
    A huge explosion halfway across the galaxy packed so much power it briefly altered Earth's upper atmosphere in December, astronomers said Friday.No known eruption beyond our solar system has ever appeared as bright upon arrival. But you could not have seen it, unless you can top the X-ray vision of Superman: In gamma rays, the event equaled the brightness of the full Moon's reflected visible light. The blast originated about 50,000 light-years away and was detected Dec. 27. A light-year is the distance light travels in a year, about 6 trillion miles (10 trillion kilometers). The commotion was caused by...
  • Astronomy Picture of the Day 03-06-04

    03/06/2004 3:24:18 AM PST · by petuniasevan · 3 replies · 188+ views
    NASA ^ | 03-06-04 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2004 March 6 N49's Cosmic Blast Credit: Hubble Heritage Team (STScI / AURA), Y. Chu (UIUC) et al., NASA Explanation: Scattered debris from a cosmic supernova explosion lights up the sky in this gorgeous composited image based on data from the Hubble Space Telescope. Cataloged as N49, these glowing filaments of shocked gas span about 30 light-years in our neighboring galaxy, the Large Magellanic Cloud. Light from the...
  • Astronomy Picture of the Day 7-04-03

    07/04/2003 12:38:49 AM PDT · by petuniasevan · 6 replies · 252+ views
    NASA ^ | 7-04-03 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2003 July 4 N49's Cosmic Blast Credit: Hubble Heritage Team (STScI / AURA), Y. Chu (UIUC) et al., NASA Explanation: Scattered debris from a cosmic supernova explosion lights up the sky in this gorgeous composited image based on data from the Hubble Space Telescope. Cataloged as N49, these glowing filaments of shocked gas span about 30 light-years in our neighboring galaxy, the Large Magellanic Cloud. Light from the...