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    JAXA tagged posts

    Iron Fingerprints in Nearby Active Galaxy

    May 9, 2024, Categories  Astronomy/Space

    A XRISM spectrum of NGC 4151 with a multiwavelength snapshot of the galaxy in the background.
    The Resolve instrument aboard XRISM (X-ray Imaging and Spectroscopy Mission) captured data from the center of galaxy NGC 4151, where a supermassive black hole is slowly consuming material from the surrounding accretion disk. The resulting spectrum reveals the presence of iron in the peak around 6.5 keV and the dips around 7 keV, light thousands of times more energetic that what our eyes can see. Background: An image of NGC 4151 constructed from a combination of X-ray, optical, and radio light.
    Spectrum: JAXA/NASA/XRISM Resolve. Background: X-rays, NASA/CXC/CfA/J.Wang et al.; optical, Isaac Newton Group of Telescopes, La Palma/Jacobus Kapteyn Telescope; radio, NSF/NRAO/VLA

    After starting science operations in February, Japan-led XRISM (X-ray Imaging and Spectroscopy Mission) studied the ...

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    Ryugu Samples illuminate Terrestrial Weathering Effects on Primitive Meteorites

    December 13, 2023, Categories  Astronomy/Space

    Ryugu Samples Illuminate Terrestrial Weathering Effects on Primitive Meteorites

    A groundbreaking study conducted by a team of international scientists has unveiled unprecedented insights into the nature of the asteroid Ryugu and shed light on the composition of water- and carbon-rich small bodies in the solar system.

    Asteroids like Ryugu are remnants of planetary embryos that never reached larger sizes, making them invaluable windows into materials that formed in the early solar system.

    The study centered on laboratory measurements of the samples brought back to the Earth by the Hayabusa2 spacecraft in 2020.

    Led by the Japan Aerospace Exploration Agency (JAXA), Hayabusa2 aimed to uncover the true nature of Ryugu and explore how astrologists can use knowledge from meteorites to...

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    Composition of Asteroid Phaethon

    December 1, 2023, Categories  Astronomy/Space

    Nuori mies kädessään purkki, jossa mustaa hiekkaa.
    Postdoctoral Researcher Eric MacLennan holds in his hands a very rare type of meteorite, the so-called CY carbonaceous chondrite. Only six specimens of the same type are known. The sample is on loan from the Natural History Museum in London. (Image: Susan Heikkinen)

    The asteroid that causes the Geminid shooting star swarm has also puzzled researchers with its comet-like tail. The infrared spectrum of rare meteorites helped to determine the composition of the asteroid.

    Asteroid Phaethon, which is five kilometers in diameter, has been puzzling researchers for a long time. A comet-like tail is visible for a few days when the asteroid passes closest to the Sun during its orbit.

    However, the tails of comets are usually formed by vaporizing ice and carbon dioxide, which cannot explain ...

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    Japan space agency finds ample Soil, Gas from Asteroid

    December 15, 2020, Categories  Astronomy/Space

    This Dec. 14, 2020, photo released by the Japan Aerospace Exploration Agency (JAXA), shows black grains, right, thought to be from Ryugu are inside the sample container of the re-entry capsule of Hayabusa2, in Sagamihara, near Tokyo. Japan’s space agency said Monday it has confirmed the presence of black soil samples inside a capsule that the spacecraft Hayabusa2 brought back from a distant asteroid last week. (JAXA via AP)

    Officials from Japan’s space agency said Tuesday they have found more than the anticipated amount of soil and gases inside a small capsule the country’s Hayabusa2 spacecraft brought back from a distant asteroid this month, a mission they praised as a milestone for planetary research.

    The Japan Aerospace Exploration Agency said its staff initially spotted some bla...

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