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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/UFJUHFI4NG4KYGV7EHFL7NRCTDI3SSH7/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "CAEahN0+XQrotr_V=xOdBeQqd3Z+-nEa2xefZGV1N1ogmje_5cA@mail.gmail.com",
    "message_id_hash": "UFJUHFI4NG4KYGV7EHFL7NRCTDI3SSH7",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/Y3FDDFCX7CYTCYHYTEOWCAGBQ77DE33E/?format=api",
    "sender": {
        "address": "ai7rogerroger (a) gmail.com",
        "mailman_id": null,
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    },
    "sender_name": "Roger - W7TZ",
    "subject": "Re: [amsat-bb] A second mysterious repeating fast radio burst has been detected in space",
    "date": "2019-01-10T17:42:15Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/Y3FDDFCX7CYTCYHYTEOWCAGBQ77DE33E/?format=api",
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    "content": "Season 6 Episode 33 of \"How the Universe Works\" may shed a bit of light on\nFRB phenomenon.\n\n73, Roger\nW7TZ\nCN83ia\nGrid Busters\nw7tz.webs.com\n\n\nOn Thu, Jan 10, 2019 at 5:34 AM Greg <[email protected]> wrote:\n\n> In case you missed it. Radio astronomy news.\n>\n> Greg N3MVF\n>\n>\n> (CNN)Far outside our Milky Way galaxy, something is causing repeating\n> short bursts of radio waves to be released into space. Scientists have\n> recorded the second repeating fast radio burst to be discovered, according\n> to a study published Wednesday in the journal Nature.\n>\n> The finding was also presented at the 233rd meeting of the American\n> Astronomical Society in Seattle.\n> These radio bursts are only millisecond-long radio flashes, and such rapid\n> bursts themselves aren't rare in space.\n> But this is only the second one that has been found to repeat. The mystery\n> about why these bursts happen and where they come from continues, which\n> always spurs believers to think that advanced extraterrestrial\n> civilizations are creating them.\n> The first one, deemed FRB 121102, was discovered in 2015 by the Arecibo\n> radio telescope, and it was revealed in 2018 that the bursts release an\n> enormous amount of energy.\n>\n> What's sending mysterious repeating fast radio bursts in space?\n> This new repeating fast radio burst is called FRB 180814.J0422+73 and was\n> recorded six times coming from the same location, 1.5 billion light-years\n> away.\n> This is one of the very first detections made by the new Canadian Hydrogen\n> Intensity Mapping Experiment, or CHIME. The radio telescope was still in\n> its pre-commissioning phase and operating with only a small amount of its\n> full capacity in the summer of 2018 when it detected this and 12 singular\n> fast radio bursts.\n> And although this new detection doesn't solve the biggest mysteries\n> surrounding the radio bursts, the researchers who recorded it believe that\n> other repeating fast radio bursts will be found -- which could allow them\n> to figure out where they originate.\n> \"Knowing that there is another suggests that there could be more out\n> there,\" said Ingrid Stairs, a member of the CHIME team and an\n> astrophysicist at the University of British Columbia. \"And with more\n> repeaters and more sources available for study, we may be able to\n> understand these cosmic puzzles -- where they're from and what causes them.\"\n>\n> One hypothesis is that powerful astrophysical phenomena are causing them.\n> The first repeating fast radio burst was recorded at a frequency of 700\n> megahertz, but some of the bursts CHIME recorded were as low as 400\n> megahertz.\n> \"[We now know] the sources can produce low-frequency radio waves and those\n> low-frequency waves can escape their environment, and are not too scattered\n> to be detected by the time they reach the Earth,\" Tom Landecker, a CHIME\n> team member from the National Research Council of Canada, said in a\n> statement. \"That tells us something about the environments and the sources.\n> We haven't solved the problem, but it's several more pieces in the puzzle.\"\n>\n> The low frequency of this new detection could mean that the source of the\n> bursts differ. \"Scattering\" was detected in the fast radio bursts, which is\n> a phenomenon that helps determine more about the environment surrounding\n> the origin.\n> The CHIME team believes this scattering is indicative of powerful\n> astrophysical objects at the source of the bursts.\n> \"That could mean [the source is] in some sort of dense clump like a\n> supernova remnant,\" team member Cherry Ng, an astronomer at the University\n> of Toronto, said in a statement. \"Or near the central black hole in a\n> galaxy. But it has to be in some special place to give us all the\n> scattering that we see.\"\n> And if CHIME was able to make these detections before it was even fully up\n> and running, the researchers are hopeful that the new radio telescope will\n> help them find answers about these mysterious signals.\n> _______________________________________________\n> Sent via [email protected]. AMSAT-NA makes this open forum available\n> to all interested persons worldwide without requiring membership. Opinions\n> expressed\n> are solely those of the author, and do not reflect the official views of\n> AMSAT-NA.\n> Not an AMSAT-NA member? Join now to support the amateur satellite program!\n> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb\n>\n",
    "attachments": []
}