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    Fast Radio Burst FRB tagged posts

    Astronomers detect Regular Rhythm of Radio Waves, with origins unknown

    June 18, 2020, Categories  Astronomy/Space

    CHIME, pictured here, consists of four large antennas, each about the size and shape of a snowboarding half-pipe, and is designed with no moving parts. Rather than swiveling to focus on different parts of the sky, CHIME stares fixedly at the entire sky, looking for fast radio burst sources across the universe.
    Image: CHIME Collaboration

    Signal from 500 million light years away is the first periodic pattern of radio bursts detected. A team of astronomers, including researchers at MIT, has picked up on a curious, repeating rhythm of fast radio bursts emanating from an unknown source outside our galaxy, 500 million light years away.

    Fast radio bursts, or FRBs, are short, intense flashes of radio waves that are thought to be the product of small, distant, extremely dense objects, though exac...

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    Cosmic Cat and Mouse: Astronomers Capture and Tag a Fleeting Radio Burst

    June 29, 2019, Categories  Astronomy/Space

    Host galaxy of FRB 180924.(A)
    VLT/FORS2 gʹ-band image showing the host galaxy of FRB 180924, labeled A. The burst location uncertainty is shown by the black circle. Two background faint background galaxies, labeled B and C, can be seen to the right and upper left are also visible (see supplementary text). (B) Keck Cosmic Web Imager (KCWI) spectrum (17) of the FRB 180924 host, showing the detection of forbidden-line ionized oxygen emission [O II], and Calcium absorption which set the FRB redshift z = 0.3214. fλ is relative flux. The oxygen emission is attributed to gas ionized by a hard ionizing spectrum. The absorption lines are stellar. (C) Section of Gemini Multi Object Spectrograph (GMOS) spectrum...
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    Astronomers Closer to Explaining Mysterious Radio Pulses from Space

    December 3, 2015, Categories  Astronomy/Space

    Artist impression of a Fast Radio Burst (FRB) reaching Earth. The colors represent the burst arriving at different radio wavelengths, with long wavelengths (red) arriving several seconds after short wavelengths (blue). This delay is called dispersion and occurs when radio waves travel through cosmic plasma. Credit: Jingchuan Yu, Beijing Planetarium

    Artist impression of a Fast Radio Burst (FRB) reaching Earth. The colors represent the burst arriving at different radio wavelengths, with long wavelengths (red) arriving several seconds after short wavelengths (blue). This delay is called dispersion and occurs when radio waves travel through cosmic plasma. Credit: Jingchuan Yu, Beijing Planetarium

    Origin of a Fast Radio Burst has been tied to to a highly magnetized, gas-filled region of space, providing a new hint in the decade-long quest to explain the mysterious radio pulses. “We now know that the energy from this particular burst passed through a dense magnetized field shortly after it formed,” says Kiyoshi Masui...

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