{"id":2567,"date":"2022-01-28T11:20:21","date_gmt":"2022-01-28T02:20:21","guid":{"rendered":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/?post_type=seminar&#038;p=2567"},"modified":"2022-09-27T16:31:36","modified_gmt":"2022-09-27T07:31:36","slug":"a-brief-review-on-primordial-black-hole-formation-and-recent-related-topics","status":"publish","type":"seminar","link":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/2567\/","title":{"rendered":"A brief review on primordial black hole formation and recent related topics"},"content":{"rendered":"<p>Recently primordial black holes (PBHs) have been attracting a lot of attention as a dark matter candidate and possible origin of observed binary black holes. In this talk, I will briefly review the standard formation process of a PBH in a radiation dominated universe by introducing the simple three-zone model. Then I will briefly introduce the two related topics based on our recent work: the effect of the velocity dispersion on the formation of PBHs in a matter- dominated era and PBH formation from massless scalar isocurvature. <br \/>\nRefs. <br \/>\nhttps:\/\/arxiv.org\/abs\/1309.4201<br \/>\nhttps:\/\/arxiv.org\/abs\/2112.12335<\/p>\n","protected":false},"featured_media":0,"template":"","tags":[],"seminar_category":[58],"acf":{"s_now_accepting":true,"s_date_order":"2022-01-19 17:30:00","s_date_end":null,"s_date_text":"2022-01-19 17:30","s_text":"Chulmoon Yoo (Nagoya University)","s_place":"Zoom","s_place_other":"","s_categoryother":"","s_poster":"","s_poster2":"","s_slide":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>A brief review on primordial black hole formation and recent related topics - KMI - Nagoya University<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/2567\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A brief review on primordial black hole formation and recent related topics - KMI - Nagoya University\" \/>\n<meta property=\"og:description\" content=\"Recently primordial black holes (PBHs) have been attracting a lot of attention as a dark matter candidate and possible origin of observed binary black holes. 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