{"id":21176,"date":"2026-04-27T12:20:58","date_gmt":"2026-04-27T12:20:58","guid":{"rendered":"https:\/\/www.radionet-org.eu\/radionet\/?p=21176"},"modified":"2026-04-27T12:20:58","modified_gmt":"2026-04-27T12:20:58","slug":"accretion-streamers-feed-young-protoplanetary-disks","status":"publish","type":"post","link":"https:\/\/www.radionet-org.eu\/radionet\/accretion-streamers-feed-young-protoplanetary-disks\/","title":{"rendered":"Accretion streamers feed young protoplanetary disks"},"content":{"rendered":"<p>Researchers from <span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">IRAM<\/span><\/span> and <span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">IPAG<\/span><\/span> have announced new results shedding light on how young planetary systems form. Using the <span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">NOEMA interferometer<\/span><\/span> together with the <span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">IRAM 30-meter telescope<\/span><\/span>, the team studied how <em>accretion streamers (<\/em>flows of interstellar material) feed protoplanetary disks around newly born stars.<\/p>\n<p>Observations of the protostar <span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">L1489 IRS<\/span><\/span> reveal that these streamers can be massive enough to replenish disks multiple times and significantly alter their chemical composition. By transporting fresh, unprocessed material from the surrounding environment, they establish a direct connection between the interstellar medium and the regions where planets form.<\/p>\n<p>These results highlight the important role of external accretion in shaping protoplanetary disks and call for a re-examination of classical models of star and planet formation. Read the full press release <a href=\"https:\/\/iram-institute.org\/newsroom\/general\/accretion-streamers-feed-young-protoplanetary-disks\/\">here<\/a> and related publications: <a href=\"https:\/\/ui.adsabs.harvard.edu\/abs\/2024A%26A...687A..92T\/abstract\">Tanious et al. 2024<\/a> and<a href=\"https:\/\/ui.adsabs.harvard.edu\/abs\/2025A%26A...703A.244T\/abstract\"> Tanious et al. 2025<em>.<\/em><\/a><\/p>\n<p><span style=\"color: #808080\"><em>Image:\u00a0<span class=\"text-xxs text-grey-30 block p-0.5rem bg-black\/50 absolute bottom-0rem right-0rem\">Artist&#8217;s interpretation of a star-forming nursery shaped by magnetic fields. Credit: NSF\/AUI\/NSF NRAO\/P.Vosteen<\/span><\/em><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Researchers from IRAM and IPAG have announced new results shedding light on how young planetary systems form. Using the NOEMA interferometer together with the IRAM 30-meter telescope, the team studied how accretion streamers (flows of interstellar material) feed protoplanetary disks around newly born stars. Observations of the protostar L1489 IRS reveal that these streamers can [&hellip;]<\/p>\n","protected":false},"author":24,"featured_media":21177,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[118,9],"tags":[],"_links":{"self":[{"href":"https:\/\/www.radionet-org.eu\/radionet\/wp-json\/wp\/v2\/posts\/21176"}],"collection":[{"href":"https:\/\/www.radionet-org.eu\/radionet\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.radionet-org.eu\/radionet\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.radionet-org.eu\/radionet\/wp-json\/wp\/v2\/users\/24"}],"replies":[{"embeddable":true,"href":"https:\/\/www.radionet-org.eu\/radionet\/wp-json\/wp\/v2\/comments?post=21176"}],"version-history":[{"count":1,"href":"https:\/\/www.radionet-org.eu\/radionet\/wp-json\/wp\/v2\/posts\/21176\/revisions"}],"predecessor-version":[{"id":21178,"href":"https:\/\/www.radionet-org.eu\/radionet\/wp-json\/wp\/v2\/posts\/21176\/revisions\/21178"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.radionet-org.eu\/radionet\/wp-json\/wp\/v2\/media\/21177"}],"wp:attachment":[{"href":"https:\/\/www.radionet-org.eu\/radionet\/wp-json\/wp\/v2\/media?parent=21176"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.radionet-org.eu\/radionet\/wp-json\/wp\/v2\/categories?post=21176"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.radionet-org.eu\/radionet\/wp-json\/wp\/v2\/tags?post=21176"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}