{"id":2436,"date":"2020-02-04T09:10:11","date_gmt":"2020-02-04T12:10:11","guid":{"rendered":"https:\/\/iate.oac.uncor.edu\/?p=2436"},"modified":"2020-02-04T09:10:11","modified_gmt":"2020-02-04T12:10:11","slug":"miercoles-05-02-into-the-unknown-hidden-fossil-relics-that-shaped-the-halo-of-the-milky-way","status":"publish","type":"post","link":"https:\/\/iate.oac.uncor.edu\/en\/2020\/02\/04\/miercoles-05-02-into-the-unknown-hidden-fossil-relics-that-shaped-the-halo-of-the-milky-way\/","title":{"rendered":"Mi\u00e9rcoles 05\/02: Into the Unknown: Hidden Fossil Relics that shaped the Halo of the Milky Way."},"content":{"rendered":"

Seminario\u00a0extraordinario\u00a0IATE\u00a0(atenci\u00f3n a la fecha)<\/b><\/span><\/p>\n

\n
\n
\n
\n
\n

T\u00edtulo: <\/b>“Into the Unknown: Hidden Fossil Relics that shaped the Halo of the Milky Way”<\/span><\/p>\n

\n

Expositor:\u00a0<\/b>Dr. Jos\u00e9 Gregorio Fern\u00e1ndez-Trincado\u00a0\u00a0(Universidad de Atacama, Copiap\u00f3, Chile)<\/span><\/p>\n

Date: <\/b>Mi\u00e9rcoles 5 de febrero de 2020, 11 hs, Auditorio\u00a0IATE.<\/span><\/span><\/h3>\n<\/div>\n
Abstract:\u00a0<\/b>APOGEE contains more than hundred thousands of giant stars. This enabled us to collect an unprecedented and homogeneous sample of giant stars with light-element abundance variations similar to observed in \u201csecond-generation\u201d globular cluster stars. If they are really former members of dissolved globular clusters, stars in these groups should show some of the basic SG-like chemical patterns known for stars currently belonging to the Milky Way globular clusters, such as depletion in C and O together with N and Al enrichments. Here, I will present the results of an updated census of Unexplained\/SG-like stars from a near-infrared manual analysis using the Brussels Automatic Stellar Parameter (BACCHUS) which have allowed us to compile the main element families, namely the light elements (C, N), alpha-elements (O, Mg, Si), iron-peak element (Fe), s-process elements (Ce, Nd), and the light odd-Z elements (Na, Al) for every line of possible cluster member stars, which they migrate to the disk, halo, and bulge as unbound stars, and become part of the general stellar population of the Milky Way.<\/span><\/div>\n
\u00a0<\/b><\/span><\/div>\n
\n

Sobre el expositor:\u00a0<\/b><\/span><\/p>\n

El Dr. Jos\u00e9 Gregorio Fern\u00e1ndez-Trincado es Graduado en F\u00edsica, Universidad de los Andes, en Venezuela. PhD en Astrof\u00edsica, Observatorio de Besan\u00e7on, Francia. Posdoc en Universidad de Concepci\u00f3n, Chile. Profesor Asistente, Universidad de Atacama, Copiap\u00f3, Chile.<\/span><\/div>\n
Experiencia en datos cinem\u00e1ticos y modelizaci\u00f3n din\u00e1mica de estrellas para reconstruir la historia de la V\u00eda L\u00e1ctea. Desarrollo de GravPot16, utilizado para datos de GAIA y en la modelizaci\u00f3n del bulge y disco interior de la MW. Activamente involucrado en el survey APOGEE y en GAIA.<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

Seminario\u00a0extraordinario\u00a0IATE\u00a0(atenci\u00f3n a la fecha) T\u00edtulo: “Into the Unknown: Hidden Fossil Relics that shaped the Halo of the Milky Way” Expositor:\u00a0Dr. Jos\u00e9 Gregorio Fern\u00e1ndez-Trincado\u00a0\u00a0(Universidad de Atacama, Copiap\u00f3, Chile) Fecha: Mi\u00e9rcoles 5 de febrero de 2020, 11 hs, Auditorio\u00a0IATE. Resumen:\u00a0APOGEE contains more than hundred thousands of giant stars. This enabled us to…<\/p>","protected":false},"author":3,"featured_media":1508,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-2436","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novedades"],"_links":{"self":[{"href":"https:\/\/iate.oac.uncor.edu\/en\/wp-json\/wp\/v2\/posts\/2436","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/iate.oac.uncor.edu\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/iate.oac.uncor.edu\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/iate.oac.uncor.edu\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/iate.oac.uncor.edu\/en\/wp-json\/wp\/v2\/comments?post=2436"}],"version-history":[{"count":0,"href":"https:\/\/iate.oac.uncor.edu\/en\/wp-json\/wp\/v2\/posts\/2436\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/iate.oac.uncor.edu\/en\/wp-json\/wp\/v2\/media\/1508"}],"wp:attachment":[{"href":"https:\/\/iate.oac.uncor.edu\/en\/wp-json\/wp\/v2\/media?parent=2436"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/iate.oac.uncor.edu\/en\/wp-json\/wp\/v2\/categories?post=2436"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/iate.oac.uncor.edu\/en\/wp-json\/wp\/v2\/tags?post=2436"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}