Astronomers have found a radio source of unknown origin from NGC 2082

Astronomers have found a radio source of unknown origin from NGC 2082

Astrological researchers from Western Sydney University in Australia have discovered a new compact radio source amid continuous observations of the spiral galaxy NGC 2082. origin and requires further research in order to fully understand.

Using the Australian Square Kilometer Array Pathfinder (ASKAP) along with the Parkes Radio Telescope and the Australian Telescope Compact Array (ATCA), the team was able to locate a radio source called J054149.24-641813.7 after consistent observations of NGC 2082. The radio source is about 20 angular seconds from center galaxy, but its overall nature remains unresolved.

“We present NGC 2082 radio continuous observations using ASKAP, ATCA and Parkes telescopes from 888 MHz to 9,000 MHz,” the astronomer’s findings state in a published report. “About 20 angular seconds from the center of this nearby spiral galaxy, we have discovered a bright and compact radio source J054149.29-641813.7 of unknown origin.”

Also read: The radio telescope detects thousands of new unknown radio sources in the direction of the large Magellanic Cloud!

NGC 2082 is located in the constellation Dorado, about 60 million light-years from Earth, and is a spiral galaxy of type G about 33,000 light-years across. It is a hotbed of cosmic information for such researchers, giving astronomers more detailed information about the necessary concepts of galaxy formation, magnetic field evolution, and the obvious characteristics of both transient and variable radio sources.

Radio source J054149.29-641813.7 carries a luminosity of about 888 MHz at 129 EW / Hz and, like other fast radio flashes (FRBs), is located at the edge of the galaxy NGC 2082. Astronomers first considered the radio source to be a supernova remnant (SNR), since that a type II supernova was discovered in the area in 2015 by Robert Evans. However, its overall luminosity and flat radio spectral index (about 0.02) suggest this. it has a rather thermal origin.

Other conditional aspects provided by the team presupposed it as a pulsar or even a persistent radio source with an embedded FRB progenitor, although again its limited clarity proves the opposite. Australian researchers point out that it could be an extragalactic background source, which basically means it can be anything, the most prominent among the concepts being the active galactic nucleus (AGN), quasi-stellar object (QSO) or full radio galaxy, although the team remains unclear and therefore requires further research.

In the document, the team simply states: “We have found that the probability of finding such a source behind NGC 2082 is P = 1.2 percent, and concludes that the most likely origin of J054149.29-641813.7 is the background quasar or radio galaxy.” ”

With little complete research on the entire galaxy NGC-2082, such as high-resolution neutral atomic hydrogen (HI) absorption data, it is difficult to make a relentless hypothesis about the overall nature of J054149.29-641813.7. Its current weak polarization, which is found at 5,500 and 9,000 MHz, together with the flat spectral index of the radio source, lends credibility to the current location of the extragalactic source behind the team.

Astronomical radio resources in space are an integral part of our understanding of space. They come in several different shapes, sizes, and with basic feature sets that allow researchers like those mentioned in this study to fully map and diagnose various phenomena in space, such as the definition of quasars, pulsars, radio galaxies, and even certain nebulae.

Also read: ASKAP detects a repeating radio signal at the center of the Milky Way galaxy | Space experts say it’s not from known sources

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