{"id":2453,"date":"2021-01-27T12:47:52","date_gmt":"2021-01-27T12:47:52","guid":{"rendered":"https:\/\/astronomia.bedigital.cl\/witnessing-planet-formation-with-alma\/"},"modified":"2024-11-12T19:04:20","modified_gmt":"2024-11-12T19:04:20","slug":"witnessing-planet-formation-with-alma","status":"publish","type":"post","link":"https:\/\/astronomia.udp.cl\/es\/witnessing-planet-formation-with-alma\/","title":{"rendered":"Witnessing planet formation with ALMA"},"content":{"rendered":"

UDP astronomers led high-resolution ALMA survey of protoplanetary disks, obtaining remarkable images which seem to trace the formation of giant extrasolar planets. Even though the Sun and all of its planets were formed 4.5 billion years ago, nature has provided astronomers with natural laboratories where young exoplanets are currently forming, allowing us to observe the process from afar. One of the closest such laboratories is known as the Ophiuchus molecular cloud, at 140 pc (420 light years) form Earth. This molecular cloud contains almost 300 protoplanetary disks with ages ranging from < 0.5 to 3 million years. As part of the Ophiuchus Disk Survey Employing ALMA (ODISEA) project, an UDP-lead team of international astronomers has obtained images of 10 of the brightest protoplanetary disks in Ophiuchus with the maximum resolution provided by ALMA, corresponding to 3-5 astronomical units at the distance of targets. The ODISEA observations were combined with those of 5 additional objects previously observed by ALMA at similar resolution by a project called DSHARP. This resulted in the largest sample of objects observed so far with this level of detail in any given molecular cloud.<\/p>\n

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\nLas im\u00e1genes obtenidas con ALMA muestran una asombrosa diversidad de estructuras (anillos, surcos y cavidades), las cuales pueden entenderse en t\u00e9rminos de la formaci\u00f3n de planetas gigantes en discos protoplanetarios masivos. Si esta interpretaci\u00f3n es correcta, esto implicar\u00eda que los planetas gigantes pueden formarse m\u00e1s r\u00e1pido (y a mayor distancia de sus estrellas centrales) de lo que se cre\u00eda posible con anterioridad. Si bien ALMA no puede obtener im\u00e1genes de los planetas directamente, puede ver el polvo subyacente en el disco protoplanetario y los surcos tallados en ellos por planetas en crecimiento. Las im\u00e1genes de ALMA obtenidas por el proyecto ODISEA son sumamente consistentes con las predicciones de modelos num\u00e9ricos de evoluci\u00f3n del polvo, los cuales incluyen procesos f\u00edsicos tales como el crecimiento y la migraci\u00f3n del polvo en presencia de planetas en formaci\u00f3n. Confirmar este escenario requiere comparar las observaciones con modelos m\u00e1s detallados de objetos individuales y de diferentes etapas evolutivas. Dichas comparaciones se realizar\u00e1n como parte del proyecto de doctorado del estudiante de la UDP Camilo Gonz\u00e1lez<\/a><\/strong><\/em> y del proyecto FONDECYT recientemente adjudicado al profesor de la UDP Lucas Cieza.<\/p>\n

M\u00e1s informaci\u00f3n:
\nhttps:\/\/ui.adsabs.harvard.edu\/abs\/2021MNRAS.501.2934C\/abstract<\/strong><\/em><\/a><\/p>","protected":false},"excerpt":{"rendered":"

UDP astronomers led high-resolution ALMA survey of protoplanetary disks, obtaining remarkable images which seem to trace the formation of giant extrasolar planets. Even though the Sun and all of its planets were formed 4.5 billion years ago, nature has provided astronomers with natural laboratories where young exoplanets are currently forming, allowing us to observe the …<\/p>\n

Witnessing planet formation with ALMA<\/span> Leer m\u00e1s »<\/a><\/p>","protected":false},"author":2,"featured_media":2460,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":""},"categories":[13,15],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/astronomia.udp.cl\/es\/wp-json\/wp\/v2\/posts\/2453"}],"collection":[{"href":"https:\/\/astronomia.udp.cl\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/astronomia.udp.cl\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/astronomia.udp.cl\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/astronomia.udp.cl\/es\/wp-json\/wp\/v2\/comments?post=2453"}],"version-history":[{"count":2,"href":"https:\/\/astronomia.udp.cl\/es\/wp-json\/wp\/v2\/posts\/2453\/revisions"}],"predecessor-version":[{"id":3915,"href":"https:\/\/astronomia.udp.cl\/es\/wp-json\/wp\/v2\/posts\/2453\/revisions\/3915"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/astronomia.udp.cl\/es\/wp-json\/"}],"wp:attachment":[{"href":"https:\/\/astronomia.udp.cl\/es\/wp-json\/wp\/v2\/media?parent=2453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/astronomia.udp.cl\/es\/wp-json\/wp\/v2\/categories?post=2453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/astronomia.udp.cl\/es\/wp-json\/wp\/v2\/tags?post=2453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}