{"id":7847,"date":"2022-06-20T18:30:07","date_gmt":"2022-06-20T16:30:07","guid":{"rendered":"https:\/\/www.lapth.cnrs.fr\/event\/warm-dark-matter-constraints-using-indirect-searches\/"},"modified":"2022-06-20T18:30:07","modified_gmt":"2022-06-20T16:30:07","slug":"warm-dark-matter-constraints-using-indirect-searches","status":"publish","type":"tribe_events","link":"https:\/\/www.lapth.cnrs.fr\/en\/event\/warm-dark-matter-constraints-using-indirect-searches\/","title":{"rendered":"Warm dark matter constraints using indirect searches"},"content":{"rendered":"<div>Warm dark matter (WDM) could explain some small-scale structure observations that have challenged the cold dark matter (CDM) model, as warm particles suppress structure formation due to free streaming effects. Observing small-scale structure thus provides a valuable way to distinguish between CDM and WDM. In this talk, I will present a semi-analytical model for the dark matter substructure evolution. Satellite galaxies form within dark matter subhaloes, and I will discuss constraints on WDM models based on the observed number of satellites in the Milky Way. Moreover, warm particles such as sterile neutrinos and axion-like particles can decay into photons, which are consequently detectable by X-ray telescopes. eROSITA will perform an all-sky X-ray survey, of which I will present its sensitivity to identify dark matter decay with narrow X-ray line emission.<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Warm dark matter (WDM) could explain some small-scale structure observations that have challenged the cold dark matter (CDM) model, as warm particles suppress structure formation due to free streaming effects. [&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-7847","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\/7847","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\/7847\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.lapth.cnrs.fr\/en\/wp-json\/wp\/v2\/media?parent=7847"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lapth.cnrs.fr\/en\/wp-json\/wp\/v2\/tags?post=7847"},{"taxonomy":"tribe_events_cat","embeddable":true,"href":"https:\/\/www.lapth.cnrs.fr\/en\/wp-json\/wp\/v2\/tribe_events_cat?post=7847"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}