During observations of a spiral galaxy known as NGC 2082, astronomers have discovered a mysterious, bright and compact radio source. Its origin remains, to this day, unknown.
From the center of the galaxy At the end of the 19th century, the development of astronomical instruments and nascent astrophotography had made it possible to discover…” data-image=”https://cdn.futura-sciences.com/buildsv6/ images/midioriginal/2/9/8/2986702f33_50035262_ngc-01.jpg” data-url=”https://news.google.com/sciences/definitions/astronomy-ngc-6380/” data-more=”Read more “> of unknown origin. Revealed by during observation campaigns carried out in 2019 and 2021 by different he responds to the sweet name of J054149.24-641813.7.2082, a The disc contains several luminous arms which wind in a spiral around the bulb. The arms contain the stars…” data-image=”https://cdn.futura-sciences.com/buildsv6/images/midioriginal/6/e/6/6e6981356f_50034127_galaxie-spirale-ngc-1187-eso.jpg ” data-url=”https://news.google.com/sciences/definitions/universe-spiral-galaxy-42/” data-more=”Read more”> located approximately 60 million light-years away in the Set of small satellites…” data-url=”https://news.google.com/sciences/definitions/universe-constellation-21/” data-more= “Read more”> sea bream, comes to us a
In a study published on its discoverers have made several hypotheses about its origin, in particular by comparing it to other signals identified. It would recall in particular, by its spectral index and its high, the often shortened by the acronym FRB for “Fast Radio Burst”. These mysterious are able to release in a few thousandths of a second, as many that the Sun is the closest star to Earth, from which it is about 150 million kilometers away. The Sun is located 8.5 kparsecs from the center of the Milky Way. In star classification, the sun is a G2 type star.
The mass…” data-image=”https://cdn.futura-sciences.com/buildsv6/images/midioriginal/1/d/9/1d9cd1d45f_50034577_eruption.jpg” data-url=”https://news. google.com/sciences/definitions/univers-soleil-3727/” data-more=”Read more”> in a day, but their origin remains unidentified to this day.
A quasar or a radio galaxy
Unfortunately, J054149.24-641813.7 does not reach a level of luminosity sufficient to be assimilated to a , according to the researchers. Few candidates then remain in the race: among them are quasars, pulsars and certain or radio galaxies. But almost every hypothesis has so far been ruled out. Too bright to match an optical remnant
This is the case, for example, of images that remain on the retina…” data-image=”https://cdn.futura-sciences.com/buildsv6/images/midioriginal/1/7/9/1794d36c35_50035512_remanent-supernova -chandra-x-ray-nasa-cxc-b-gaensler-al.jpg” data-url=”https://news.google.com/planete/definitions/developpement-durable-remanent-6918/” data-more =”Read more”> from Extract from…” data-image=”https://cdn.futura-sciences.com/buildsv6/images/midioriginal/a/9/4/a940132305_50034136_supernova1987a.jpg” data-url=”https://news .google.com/sciences/definitions/universe-supernova-60/”data-more=”Read more”> but ” not bright enough to be a source persistent radio with a built-in FRB progenitor”this has a flat spectral index, that is to say a source which would be of thermal origin.
This spectral index also eliminates another possibility: the a periodic signal from a which turns very quickly on itself. Only two possibilities remain: quasar and radio galaxy. Quasars correspond to active nuclei of very bright galaxies, which contain in their center a supermassive black hole, just like the From Earth, we can only observe a cross section…” data-image=”https:/ /cdn.futura-sciences.com/buildsv6/images/midioriginal/7/7/7/777b761907_120668_voie-lactee-galaxie.jpg” data-url=”https://news.google.com/sciences/definitions/universe- milkyway-3729/” data-more=”Read more”> houses in its center Sagittarius A*.
As to , as their name suggests, they are galaxies whose emitted energy comes from radio waves due to synchrotron radiation. But, whether the source matches one or the other, ” we can expect to see some PHYSIOLOGY Penetration of a substance from outside into a living organism. Intestinal absorption: passage of nutrients from…” data-url=”https://news.google.com/sante/definitions/medecine-absorption-2910/” data-more=”Read more”> from Hi; however, there is currently no Hi High data for NGC 2082 “, conclude the researchers. The mystery still persists.
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