{"id":521,"date":"2018-05-29T16:02:45","date_gmt":"2018-05-29T15:02:45","guid":{"rendered":"http:\/\/auditore.cab.inta-csic.es\/galaxias\/?p=521"},"modified":"2018-05-29T16:02:45","modified_gmt":"2018-05-29T15:02:45","slug":"the-centre-of-the-galaxy-ngc-5643-has-been-chosen-as-an-eso-picture-of-the-week","status":"publish","type":"post","link":"http:\/\/auditore.cab.inta-csic.es\/galaxias\/the-centre-of-the-galaxy-ngc-5643-has-been-chosen-as-an-eso-picture-of-the-week\/","title":{"rendered":"The centre of the galaxy NGC 5643 has been chosen as an ESO Picture of the Week"},"content":{"rendered":"<div id=\"attachment_522\" style=\"width: 1290px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-522\" class=\"wp-image-522 size-full\" src=\"http:\/\/auditore.cab.inta-csic.es\/galaxias\/files\/2018\/05\/potw1822a.jpg\" alt=\"\" width=\"1280\" height=\"771\" srcset=\"http:\/\/auditore.cab.inta-csic.es\/galaxias\/files\/2018\/05\/potw1822a.jpg 1280w, http:\/\/auditore.cab.inta-csic.es\/galaxias\/files\/2018\/05\/potw1822a-300x181.jpg 300w, http:\/\/auditore.cab.inta-csic.es\/galaxias\/files\/2018\/05\/potw1822a-768x463.jpg 768w, http:\/\/auditore.cab.inta-csic.es\/galaxias\/files\/2018\/05\/potw1822a-1024x617.jpg 1024w, http:\/\/auditore.cab.inta-csic.es\/galaxias\/files\/2018\/05\/potw1822a-498x300.jpg 498w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><p id=\"caption-attachment-522\" class=\"wp-caption-text\">Centre of NGC 5643 observed by ALMA and VLT. Credit: ESO\/A. Alonso-Herrero et al.; ALMA (ESO\/NAOJ\/NRAO)<\/p><\/div>\n<p>This <a href=\"https:\/\/www.eso.org\/public\/images\/potw\/\">ESO Picture of the Week<\/a> shows the centre of a galaxy named NGC 5643. This galaxy is located 55 million light-years from Earth in the constellation of <a href=\"https:\/\/en.wikipedia.org\/wiki\/Lupus_(constellation)\">Lupus (The Wolf)<\/a>, and is known as a <a href=\"https:\/\/en.wikipedia.org\/wiki\/Seyfert_galaxy\">Seyfert galaxy<\/a>. Seyfert galaxies have very luminous centres \u2014 thought to be powered by material being accreted onto\u00a0a <a href=\"https:\/\/en.wikipedia.org\/wiki\/Supermassive_black_hole\">supermassive black hole<\/a> lurking within \u2014 that can also be shrouded and obscured by clouds of dust and intergalactic material.<!--more--><\/p>\n<p>As a result, it can be difficult to observe the <a href=\"https:\/\/en.wikipedia.org\/wiki\/Active_galactic_nucleus\">active centre<\/a> of a Seyfert galaxy. NGC 5643 poses a further challenge; it is viewed at a high inclination, making it even trickier to view its inner workings. However, scientists have used the <a href=\"https:\/\/www.eso.org\/public\/teles-instr\/alma\/\">Atacama Large Millimeter\/submillimeter Array (ALMA)<\/a> together with archival data from the <a href=\"https:\/\/www.eso.org\/public\/teles-instr\/paranal-observatory\/vlt\/vlt-instr\/muse\/\">Multi Unit Spectroscopic Explorer (MUSE)<\/a> instrument on ESO\u2019s <a href=\"https:\/\/www.eso.org\/public\/teles-instr\/paranal-observatory\/vlt\/\">Very Large Telescope<\/a> to reveal this view of NGC 5643 \u2014 complete with energetic outflowing ionised gas pouring out into space.<\/p>\n<p>These impressive outflows stretch out on either side of the galaxy, and are caused by matter being ejected from the accretion disc of the supermassive black hole at NGC 5643\u2019s core. Combined, the ALMA and VLT data show the galaxy\u2019s central region to have two distinct components: a spiraling, rotating disc (visible in red) consisting of cold molecular gas traced by carbon monoxide,\u00a0and the outflowing gas, traced by ionised oxygen and hydrogen (in blue-orange hues) perpendicular to the inner nuclear disc.<\/p>\n<p>Based on results to be published in the Astrophysical Journal by Almudena Alonso-Herrero et al. (<a href=\"https:\/\/arxiv.org\/abs\/1804.04842\">https:\/\/arxiv.org\/abs\/1804.04842<\/a>)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This ESO Picture of the Week shows the centre of a galaxy named NGC 5643. This galaxy is located 55 million light-years from Earth in the constellation of Lupus (The Wolf), and is known as a Seyfert galaxy. Seyfert galaxies &hellip; <a href=\"http:\/\/auditore.cab.inta-csic.es\/galaxias\/the-centre-of-the-galaxy-ngc-5643-has-been-chosen-as-an-eso-picture-of-the-week\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":72,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[17,39,62,60,59,61,49,58],"class_list":["post-521","post","type-post","status-publish","format-standard","hentry","category-news","tag-alma","tag-black-hole","tag-eso","tag-muse","tag-ngc5643","tag-seyfert","tag-smbh","tag-vlt"],"_links":{"self":[{"href":"http:\/\/auditore.cab.inta-csic.es\/galaxias\/wp-json\/wp\/v2\/posts\/521","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/auditore.cab.inta-csic.es\/galaxias\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/auditore.cab.inta-csic.es\/galaxias\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/auditore.cab.inta-csic.es\/galaxias\/wp-json\/wp\/v2\/users\/72"}],"replies":[{"embeddable":true,"href":"http:\/\/auditore.cab.inta-csic.es\/galaxias\/wp-json\/wp\/v2\/comments?post=521"}],"version-history":[{"count":4,"href":"http:\/\/auditore.cab.inta-csic.es\/galaxias\/wp-json\/wp\/v2\/posts\/521\/revisions"}],"predecessor-version":[{"id":585,"href":"http:\/\/auditore.cab.inta-csic.es\/galaxias\/wp-json\/wp\/v2\/posts\/521\/revisions\/585"}],"wp:attachment":[{"href":"http:\/\/auditore.cab.inta-csic.es\/galaxias\/wp-json\/wp\/v2\/media?parent=521"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/auditore.cab.inta-csic.es\/galaxias\/wp-json\/wp\/v2\/categories?post=521"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/auditore.cab.inta-csic.es\/galaxias\/wp-json\/wp\/v2\/tags?post=521"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}