Credit: SciTechDaily.comPEARLSDG, an isolated dwarf galaxy discovered by the James Webb Space Telescope, defies basic galactic development theories by not forming new stars, indicating a requirement to revise our understanding of galaxies.A team of astronomers, led by Arizona State University Assistant Research Scientist Tim Carleton, has actually discovered a dwarf galaxy that appeared in James Webb Space Telescope (JWST) imaging that wasnt the main observation target.Galaxies are bound together by gravity and made up of planets and stars, with vast clouds of dust and gas as well as dark matter. They have fewer than 100 million stars, while the Milky Way, for example, has almost 200 billion stars.Understanding Dwarf GalaxiesRecent dwarf galaxy observations of the abundance of “ultra-diffuse galaxies” beyond the reach of previous large spectroscopic studies suggest that our understanding of the dwarf galaxy population might be incomplete.In a newly published research study, Carleton and the team were at first looking at a cluster of galaxies as part of the JWST Prime Extragalactic Areas for Reionization and Lensing Science (PEARLS) project.The dwarf galaxy, PEARLSDG, occurred to appear in some of the teams JWST imaging.”Until now, astronomers understanding of galaxy advancement revealed an isolated galaxy that continued to form young stars or it would communicate with a more huge buddy galaxy.
Credit: SciTechDaily.comPEARLSDG, an isolated dwarf galaxy discovered by the James Webb Space Telescope, defies standard galactic development theories by not forming new stars, indicating a requirement to revise our understanding of galaxies.A team of astronomers, led by Arizona State University Assistant Research Scientist Tim Carleton, has actually discovered a dwarf galaxy that appeared in James Webb Space Telescope (JWST) imaging that wasnt the main observation target.Galaxies are bound together by gravity and made up of planets and stars, with huge clouds of dust and gas as well as dark matter. They have fewer than 100 million stars, while the Milky Way, for example, has nearly 200 billion stars.Understanding Dwarf GalaxiesRecent dwarf galaxy observations of the abundance of “ultra-diffuse galaxies” beyond the reach of previous big spectroscopic surveys recommend that our understanding of the dwarf galaxy population may be incomplete.In a recently published research study, Carleton and the team were initially looking at a cluster of galaxies as part of the JWST Prime Extragalactic Areas for Reionization and Lensing Science (PEARLS) project.The dwarf galaxy, PEARLSDG, occurred to appear in some of the groups JWST imaging.”Until now, astronomers understanding of galaxy development showed an isolated galaxy that continued to form young stars or it would interact with a more enormous buddy galaxy.”This was absolutely versus peoples expectations for a dwarf galaxy like this,” Carleton said.This discovery modifications astronomers understanding of how galaxies progress and form.
