{"id":7846,"date":"2022-06-20T18:30:07","date_gmt":"2022-06-20T16:30:07","guid":{"rendered":"https:\/\/www.lapth.cnrs.fr\/event\/unravelling-the-mystery-of-dark-matter-with-black-holes-remote-talk\/"},"modified":"2022-06-20T18:30:07","modified_gmt":"2022-06-20T16:30:07","slug":"unravelling-the-mystery-of-dark-matter-with-black-holes-remote-talk","status":"publish","type":"tribe_events","link":"https:\/\/www.lapth.cnrs.fr\/en\/event\/unravelling-the-mystery-of-dark-matter-with-black-holes-remote-talk\/","title":{"rendered":"Unravelling the mystery of Dark Matter with Black Holes [Remote talk]"},"content":{"rendered":"<div>Primordial black holes (<span>PBHs<\/span>), possibly formed via gravitational collapse of large density perturbations in the very early universe, are one of the earliest proposed and viable dark matter (DM) candidates. <span>PBHs<\/span> can make up a large or even entirety of DM over a wide range of masses. Ultralight <span>PBHs<\/span> in the mass range of 10^{15} &#8211; 10^{17} g, emit particles via Hawking radiation, act as a decaying DM, and can be probed via observations of those emitted particles in various space as well as ground based detectors. In this talk, I will discuss how diffuse supernova neutrino background searches at the Super-Kamiokande neutrino observatory, measurement of the 511 keV gamma-ray line by INTEGRAL telescope, observations of low energy Galactic Center photons by the imminent soft gamma-ray telescope AMEGO, and EDGES measurement of&nbsp; the global 21-cm signal can set robust, world-leading exclusions on the fraction of DM composed of ultralight <span>PBHs<\/span>. Finally, I will also walk you through a novel formation mechanism of low mass transmuted black holes, a viable non-primordial solution to sub-Chandrasekhar mass black holes, pointing out several avenues to test the transmuted origin of low mass black holes.<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Primordial black holes (PBHs), possibly formed via gravitational collapse of large density perturbations in the very early universe, are one of the earliest proposed and viable dark matter (DM) candidates. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"template":"","meta":{"_acf_changed":false,"_tribe_events_status":"","_tribe_events_status_reason":"","footnotes":""},"tags":[],"tribe_events_cat":[18],"class_list":["post-7846","tribe_events","type-tribe_events","status-publish","hentry","tribe_events_cat-weekly-seminars","cat_weekly-seminars"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.lapth.cnrs.fr\/en\/wp-json\/wp\/v2\/tribe_events\/7846","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lapth.cnrs.fr\/en\/wp-json\/wp\/v2\/tribe_events"}],"about":[{"href":"https:\/\/www.lapth.cnrs.fr\/en\/wp-json\/wp\/v2\/types\/tribe_events"}],"author":[{"embeddable":true,"href":"https:\/\/www.lapth.cnrs.fr\/en\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":0,"href":"https:\/\/www.lapth.cnrs.fr\/en\/wp-json\/wp\/v2\/tribe_events\/7846\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.lapth.cnrs.fr\/en\/wp-json\/wp\/v2\/media?parent=7846"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lapth.cnrs.fr\/en\/wp-json\/wp\/v2\/tags?post=7846"},{"taxonomy":"tribe_events_cat","embeddable":true,"href":"https:\/\/www.lapth.cnrs.fr\/en\/wp-json\/wp\/v2\/tribe_events_cat?post=7846"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}