{"id":90447,"date":"2022-05-09T19:23:49","date_gmt":"2022-05-09T17:23:49","guid":{"rendered":"https:\/\/www.astb.se\/cassiopeiabloggen\/?p=90447"},"modified":"2022-05-09T19:24:00","modified_gmt":"2022-05-09T17:24:00","slug":"nr-32-2022","status":"publish","type":"post","link":"https:\/\/www.astb.se\/cassiopeiabloggen\/2022\/05\/09\/nr-32-2022\/","title":{"rendered":"Nr 32 2022"},"content":{"rendered":"\n

Den mest avl\u00e4gsna galaxen <\/h2>\n\n\n\n

W-bloggen surfade in om RAS (Royal Astronomical Society) och dess hemsida och uppt\u00e4ckte till sin \u00f6verraskning en stor nyhet fr\u00e5n i vintras:<\/p>\n\n\n\n

Ett g\u00e4ng astronomer har nu hittat den mest avl\u00e4gna galaxen av dem alla.<\/p>\n\n\n\n

HD1 ligger p\u00e5 13,5 miljarder ljus\u00e5rs avst\u00e5nd.<\/p>\n\n\n\n

Sannolikt inneh\u00e5ller galaxen universums \u00e4ldsta stj\u00e4rnor, Population III-stj\u00e4rnor som aldrig observerats, och sannolikt \u00e4ven ett supermassivt svart h\u00e5l.<\/p>\n\n\n\n

HD1-rapporten \u00e5terfinns h\u00e4r Astrophysical Journal<\/em><\/a>. och h\u00e4r Monthly Notices of the Royal Astronomical Society Letters<\/em>,<\/a> <\/p>\n\n\n\n

Bakom uppt\u00e4ckten ligger 1200 timmars observationer med japanernas Subaru-teleskop p\u00e5 Hawaii, VISTA Telescope, UK Infrared Telescope och Spitzer Space Telescope. \u00c4ven ALMA spelade stor roll i bekr\u00e4ftandet av avst\u00e5ndsbed\u00f6mningen.<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Bildk\u00e4lla: Yuichi Harikane, University of Tokyo, et al<\/em><\/p>\n\n\n\n

Det \u00e4r denna typ av uppt\u00e4ckter som vi r\u00e4knar med James Webb-teleskopet ska komma med.<\/p>\n\n\n\n

GK Perseis molekyler <\/h2>\n\n\n\n

Den klassiska novan GK Persei, som small 1901 s\u00e5 h\u00e4ftigt att till och med August Strindberg <\/strong>l\u00e4ste om den och kommenterade den, har granskats i jakten p\u00e5 molekyl\u00e4r gas. Denna lyser med sin fr\u00e5nvaro<\/a>. Sannolikt beroende p\u00e5 att novautbrotten \u00e4r s\u00e5 h\u00e4ftiga att molekyler som HCN och CO aldrig f\u00e5r chans att bildas.<\/p>\n\n\n\n

Bokh\u00f6rnan!<\/h2>\n\n\n\n

Anders Larsson,<\/strong> v\u00e5r ASTB:are, h\u00e5ller \u00f6gat p\u00e5 nya b\u00f6cker inom v\u00e5r sf\u00e4r. Nyligen kom han \u00f6ver med tv\u00e5 l\u00e5neex dels Messier Astrophotography Reference<\/em> av Allan Hall,<\/strong> dels Stephen James O\u00b4Mearas<\/strong> nya bok Herschel 400 Observing Guide.<\/em><\/p>\n\n\n\n

O\u00b4Meara \u00e4r en veteran, med f\u00f6rflutet p\u00e5 Sky and Telescope, <\/em>och han har sammanst\u00e4llt flera viktiga kataloger och faktab\u00f6cker. Herschel-boken \u00e4r en innovation, den diskuterar i detalj hur vi m\u00e5nad f\u00f6r m\u00e5nad observerar och fotograferar 400 av 1700\/1800-talsgiganten William Hersche<\/strong>ls <\/strong>drygt 2500 deep sky-objekt.<\/p>\n\n\n\n

Jag tror att astrofotograferna i ASTB-ledet har stor gl\u00e4dje av b\u00f6ckerna, som b\u00f6r k\u00f6pas in till v\u00e5rt bibliotek p\u00e5 Tycho Brahe-observatoriet.<\/p>\n\n\n\n

\"Denna<\/figure><\/div>\n","protected":false},"excerpt":{"rendered":"

Den mest avl\u00e4gsna galaxen W-bloggen surfade in om RAS (Royal Astronomical Society) och dess hemsida och uppt\u00e4ckte till sin \u00f6verraskning en stor nyhet fr\u00e5n i vintras: Ett g\u00e4ng astronomer har nu hittat den mest avl\u00e4gna galaxen av dem alla. HD1 ligger p\u00e5 13,5 miljarder ljus\u00e5rs avst\u00e5nd. Sannolikt inneh\u00e5ller galaxen universums \u00e4ldsta stj\u00e4rnor, Population III-stj\u00e4rnor som… L\u00e4s mer »Nr 32 2022<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":[],"rop_publish_now_history":[],"rop_publish_now_status":"pending","neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[3],"tags":[],"_links":{"self":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/90447"}],"collection":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/comments?post=90447"}],"version-history":[{"count":10,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/90447\/revisions"}],"predecessor-version":[{"id":90459,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/90447\/revisions\/90459"}],"wp:attachment":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/media?parent=90447"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/categories?post=90447"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/tags?post=90447"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}