Supernova remnant 160,000 light-years away, heralds end of star, observed by Hubble and Chandra | Sorae space portal site

【▲ Supernova Remnant “SNR 0519-69.0” (Credit: X-ray: NASA/CXC/GSFC/BJ Williams et al.; Optical: NASA/ESA/STScI)]

This one is in the constellation DoradoSupernova Remnant “SNR 0519-69.0”(henceforth “SNR 0519”). SNR 0519 is one of the companion galaxies (satellite galaxies) of the Milky Way, about 160,000 light years away.“Large Magellanic Cloud”(LMC: Large Magellanic Cloud, also known as the Large Magellanic Galaxy).

The remnants of a supernova are aObjects Observed after a Supernova ExplosionAbout. Electromagnetic waves such as visible light and X-rays are emitted by the shock wave produced by the supernova explosion which propagates into the surroundings and heats the gas. The light from the supernova explosion that formed SNR 0519 wasAbout 670 years ago, around the 14th centuryit is estimated to have reached Earth in

This image is“Hubble” Space Telescope.WhenX-ray observation satellite “Chandra”Created from images obtained using The width of the image corresponds to about 88 light years. Since X-ray data that cannot be captured by the human eye is also included, the Hubble data are colored red and white, and the Chandra data are colored green, blue, and purple descending order of X-ray energy.

According to the Chandra X-ray Center at the Smithsonian Astrophysical Observatory, this supernova remains.white dwarfhappen in“Type Ia supernova”a white dwarf is believed to have been formed by a celestial Body that evolved after the death of a light star such as the Sun, which would not cause a supernova explosion on its own. It is a type Ia supernovaOccurs when the mass of a white dwarf increases to about 1.4 times that of the Sun (Chandrasekhar limit)It has been with. As for why the mass of the white dwarf is increasing,Gas flowing out of a star accumulatesorWhite dwarf mergerthat is believed to be the reason.

The top image was released on September 12, 2022 by the National Aeronautics and Space Administration (NASA) and the Chandra X-ray Center.

Related: Faint and short-lived glow. Hubble image of supernova remnant in Table Scorpio


  • Image Credit: X-ray: NASA/CXC/GSFC/BJ Williams et al.; Optical: NASA/ESA/STScI
  • NASA – Set the clock on a stellar explosion
  • Chandra X-ray Center – SNR 0519-69.0: Setting the Clock on a Stellar Explosion

Text / Matsumura Takehiro

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