Researchers have uncovered where FRBs are more likely to occur in the universe -- massive star-forming galaxies rather than low - mass ones.
Since their discovery in 2007, fast radio bursts -- extremely energetic pulses of radio-frequency light -- have lit up the sky repeatedly, leading astronomers on a chase to uncover their origins. Currently, confirmed fast radio bursts, or FRBs, number in the hundreds, and scientists have assembled mounting evidence for what triggers them: highly magnetized neutron stars known as magnetars .
"DSA-110 has more than doubled the number of FRBs with known host galaxies," says Ravi."This is what we built the array to do." Stars that are rich in metals -- which in astronomical terms means elements heavier than hydrogen and helium -- tend to grow larger than other stars."Over time, as galaxies grow, successive generations of stars enrich galaxies with metals as they evolve and die," Ravi says.
In summary, since FRBs are preferentially observed in massive and metal-rich star-forming galaxies, then magnetars are probably also forming in metal-rich environments conducive to the merging of two stars. The results therefore hint that magnetars across the universe originate from the remnants of stellar mergers.
Galaxies Astrophysics Extrasolar Planets Black Holes Nebulae Cosmology Astronomy
United States Latest News, United States Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Power Rangers Finally Delivered The Scene Every Mighty Morphin Fan Had Been Waiting For Since The 1990sThe Mighty Morphin Black Ranger in costume combined with the Mighty Morphin team without their costumes
Read more »
Rio Grande initiatives aim to restore once-mighty riverAlso known as Rio Bravo, it’s barely a trickle through much of West Texas. Scientists and advocates say local initiatives could be scaled up to restore flows.
Read more »
Mighty Morphin Power Rangers: Rita’s Rewind brings the 1990s home this DecemberDT Video
Read more »
Mighty Morphin Power Rangers: Rita’s Rewind Reveals Release Date and Epic New TrailerComic Book Movies, News, & Digital Comic Books
Read more »
Banishers: Ghosts of New Eden gives off mighty The Witcher vibes - Video Games on Sports IllustratedBanishers: Ghosts of New Eden gives off mighty The Witcher vibes in our gamescom hands-on with the game.
Read more »
Opinion: The Great British Decline — From Mighty To MediocreOnce a European powerhouse, Great Britain faces an uncertain future as it risks being eclipsed by European nations by the decade's end.
Read more »