{"id":83566,"date":"2020-04-03T20:34:18","date_gmt":"2020-04-03T19:34:18","guid":{"rendered":"http:\/\/www.astb.se\/cassiopeiabloggen\/?p=83566"},"modified":"2020-04-03T21:07:05","modified_gmt":"2020-04-03T20:07:05","slug":"nr-27-2020","status":"publish","type":"post","link":"https:\/\/www.astb.se\/cassiopeiabloggen\/2020\/04\/03\/nr-27-2020\/","title":{"rendered":"Nr 27 2020"},"content":{"rendered":"\n<h4 class=\"wp-block-heading\">Malm\u00f6 och G\u00f6teborg simmar i samma b\u00e5t:<\/h4>\n\n\n\n<h3 class=\"wp-block-heading\">Tufft f\u00f6r unga och skolor i coronatider<\/h3>\n\n\n\n<p>Coronatsunamin sveper \u00e4ven \u00f6ver&nbsp;den astronomiska communityn, konstigt vore det annars. Men det g\u00e5r att kr\u00e5ngla sig&nbsp;f\u00f6rbi v\u00e5gskvalpet med lite smartness: <strong>Peter Hemborg,<\/strong> v\u00e5r egen astropedagog inom ASTB,&nbsp;kunde h\u00e4rom sistens&nbsp;med <strong>Jon Saalbachs<\/strong> hj\u00e4lp&nbsp;&nbsp;k\u00f6ra ett par av sina m\u00f6ten&nbsp; med den unga generationen helt virtuellt (via Skype).&nbsp;Det gick perfekt, och &nbsp;alla var glada och n\u00f6jda. Forts\u00e4ttning f\u00f6ljer!<\/p>\n\n\n\n<p>Resultatet finns <a href=\"https:\/\/www.youtube.com\/watch?v=8t5Nk1cxENg\">bl a p\u00e5 Youtube<\/a> och h\u00e4r p\u00e5 n\u00e5gra ytterligare bildbevis:<\/p>\n\n\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/?attachment_id=83587\" rel=\"attachment wp-att-83587\"><img decoding=\"async\" width=\"300\" height=\"225\" class=\"aligncenter size-medium wp-image-83587\" alt=\"\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/IMG_20200401_193718728-1-300x225.jpg\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/IMG_20200401_193718728-1-300x225.jpg 300w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/IMG_20200401_193718728-1-768x576.jpg 768w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/IMG_20200401_193718728-1-200x150.jpg 200w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/IMG_20200401_193718728-1.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/?attachment_id=83588\" rel=\"attachment wp-att-83588\"><img decoding=\"async\" width=\"300\" height=\"225\" class=\"aligncenter size-medium wp-image-83588\" alt=\"\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/IMG_20200401_183444742-300x225.jpg\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/IMG_20200401_183444742-300x225.jpg 300w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/IMG_20200401_183444742-768x576.jpg 768w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/IMG_20200401_183444742-200x150.jpg 200w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/IMG_20200401_183444742.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n\n\n<p><\/p>\n\n\n\n<p>I G\u00f6teborg s\u00e5g det riktigt bra ut i b\u00f6rjan av \u00e5ret, d\u00e5 <strong>Katja Lindblom<\/strong> efter alltf\u00f6r l\u00e5\u00e5\u00e5\u00e5ng tid i ide till f\u00f6ljd av rent politiska, ogener\u00f6sa&nbsp;dum\u00e5tg\u00e4rder, kunde starta upp skolverksamheten p\u00e5 Slottsskogsobservatoriet igen. Kickstarten f\u00f6ljdes tack vare coronaviruset av en efterf\u00f6ljande &#8211; tv\u00e4rnit. Enormt tr\u00e5kigt! Och av s\u00e5na ryck m\u00e5r ingen av oss bra i l\u00e4ngden, \u00e4rligt talat.<\/p>\n\n\n\n<p>Efter sju sorger och \u00e5tta bedr\u00f6velser kunde Katja k\u00f6ra ig\u00e5ng igen i mitten av januari. Det b\u00f6rjade med skolverksamheten, f\u00f6r som Katja p\u00e5pekar: D\u00e5 blir det sv\u00e5rare f\u00f6r diverse involverade parter som G\u00f6teborgs kommun och V\u00e4stra G\u00f6talandsregionen (som betalar hyran) att ignorera observatoriet och dess verksamhet, framf\u00f6r allt som d\u00e4r rent faktiskt bedrivs verksamhet.<\/p>\n\n\n\n<p>So far so good.<\/p>\n\n\n\n<p>Verksamheten drogs allts\u00e5&nbsp;ig\u00e5ng, det blev snabbt fullbokat trots att observatoriet nu m\u00e5ste ta betalt f\u00f6r lektionerna&nbsp;sedan st\u00f6det fr\u00e5n G\u00f6teborgs kulturf\u00f6rvaltning upph\u00f6rt,&nbsp;&nbsp;men s\u00e5 kom den d\u00e4r&nbsp;tv\u00e4rniten i form av Covid-19. Med f\u00f6ljd av obsis \u00e5ter st\u00e5r tomt, skolklasser f\u00e5r inte \u00e5ka kollektivt hur som helst.<\/p>\n\n\n\n<p>Nu f\u00e5r vi se vad som h\u00e4nder, oppositionspartierna i G\u00f6teborg har lyckats k\u00f6ra \u00f6ver den regerande alliansen och i b\u00e5de KS och KF f\u00e5 igenom ett yrkande om kommunalt st\u00f6d p\u00e5 0,5 miljoner kr till observatoriet under 2020. Med f\u00f6rhoppning om fortsatt st\u00f6d \u00f6ver tid.&nbsp;N\u00e4rmast v\u00e4ntar ett godk\u00e4nnande i Grundskolen\u00e4mnden 18 april.<\/p>\n\n\n\n<p>Katja tipsar om denna <a href=\"https:\/\/www4.goteborg.se\/prod\/Intraservice\/Namndhandlingar\/SamrumPortal.nsf\/9C93B3E3327C178AC125853D004E2C7D\/$File\/KF_protokoll_20200319.pdf?OpenElement\">l\u00e4nk p\u00e5 stans hemsida.<\/a>&nbsp;Scrolla ner till paragrafen 20.<\/p>\n\n\n\n<p>Vi h\u00e5ller tummarna f\u00f6r Katja, som ju vill jobba med det hon \u00e4r b\u00e4st p\u00e5 (visat genom&nbsp;Lundmarkpriset): att f\u00f6rmedla entusiasm, kunskap och insikter om v\u00e5r fantastiska vetenskap till omv\u00e4rlden.<\/p>\n\n\n\n<p>Min gamle kollega&nbsp;fr\u00e5n Expressen\/KvP\/GT&nbsp;<strong>Lars N\u00e4slund<\/strong> (vi gjorde bl a en ganska s\u00e5 dramatisk ub\u00e5tsresa tillsammans med start i G\u00f6teborg) jobbar numera f\u00f6r DN:s nystartade G\u00f6teborgsredaktion och <a href=\"https:\/\/www.dn.se\/nyheter\/lars-naslund-alliansen-overkorda-igen-vad-har-s-och-d-i-stjarnkikaren\/\">skrev om det politiska spelet<\/a> bakom &#8220;ickest\u00f6det&#8221; till observatoriet f\u00f6r n\u00e5gra veckor sedan. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Upphittat: En ny sorts himlakroppar<\/h2>\n\n\n\n<p>Det \u00e4r s\u00e4rskilt roligt <a href=\"https:\/\/www.aanda.org\/component\/content\/article\/185-highlights\/highlights-2020\/1792-the-origin-of-tail-like-structures-around-protoplanetary-disks-vorobyov-et-al\">n\u00e4r astronomer uppt\u00e4cker n\u00e5got helt nytt.<\/a> Som nu dessa m\u00e4rkliga &#8220;svansar&#8221; f\u00f6rbunda med protoplaneter och&nbsp;ackretionsdiskar runt &nbsp;protostj\u00e4rnor.<\/p>\n\n\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/?attachment_id=83574\" rel=\"attachment wp-att-83574\"><img decoding=\"async\" width=\"300\" height=\"193\" class=\"aligncenter size-medium wp-image-83574\" alt=\"\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/36990Vorobyov1-300x193.jpg\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/36990Vorobyov1-300x193.jpg 300w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/36990Vorobyov1-1024x659.jpg 1024w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/36990Vorobyov1-768x495.jpg 768w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/36990Vorobyov1-200x129.jpg 200w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/36990Vorobyov1.jpg 1185w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n\n\n<p>Vad \u00e4r det vi tror vi ser? Med hj\u00e4lp av datasimuleringar (&#8220;numerical hydrodynamics simulations&#8221;) tror sig n\u00e5gra forskare ha hittat l\u00f6sningen:<\/p>\n\n\n\n<p> 1. Att vi ser utkastade gasklumpar&nbsp;fr\u00e5n ickestabila protostell\u00e4ra diskar ELLER, och nu blir astrohistorikern i mig nyfiken, 2. att vi ser st\u00f6rningar i diskarna genom en fr\u00e4mmande stj\u00e4rnas intr\u00e5ng.<\/p>\n\n\n\n<p>Alternativ 2&nbsp;betyder ju en sorts sofistikerad ren\u00e4ssans f\u00f6r <strong>James Jeans <\/strong>gamla teori om planetbildning genom stj\u00e4rnm\u00f6ten. Hmmm.&nbsp;<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Upphittat: Mellanstort svart h\u00e5l<\/h2>\n\n\n\n<p>Nu \u00e4r det bevisat enligt HST aka Hubble Space telescope att <a href=\"https:\/\/www.spacetelescope.org\/news\/heic2005\/?lang\">mellanstora svarta h\u00e5l <\/a>finns. HST-uppt\u00e4ckten fokuserar p\u00e5 en t\u00e4t klotformig stj\u00e4rnhop.<\/p>\n\n\n\n<p>Det svarta h\u00e5let har en massa motsvarande 50 000 solens.<\/p>\n\n\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/?attachment_id=83569\" rel=\"attachment wp-att-83569\"><img decoding=\"async\" width=\"300\" height=\"300\" class=\"size-medium wp-image-83569 aligncenter\" alt=\"\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/heic2005c1-300x300.jpg\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/heic2005c1-300x300.jpg 300w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/heic2005c1-1024x1024.jpg 1024w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/heic2005c1-150x150.jpg 150w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/heic2005c1-768x768.jpg 768w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/heic2005c1-200x200.jpg 200w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/heic2005c1.jpg 1280w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n\n\n<p class=\"has-text-align-center\"><em>Det svarta h\u00e5let b\u00e4r katalogbeteckningen 3XMM J215022.4\u2212055108 och ligger inom den vita cirkeln. Avst\u00e5ndet \u00e4r l\u00e5ngt bortom Vintergatan, stj\u00e4rnhopen tillh\u00f6r galaxen i mitten. I bakgrunden ytterligare en spiralgalax v\u00e4nd en face mot oss.<\/em><\/p>\n\n\n\n<p class=\"has-text-align-center\"><em>Bildk\u00e4lla: NASA, ESA, and D. Lin (University of New Hampshire)<\/em><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Venus i m\u00f6te med Plejaderna<\/h2>\n\n\n\n<p>Just nu m\u00f6ts Venus och Plejaderna p\u00e5 stj\u00e4rnhimlen. M\u00e4ngder av bilder bl a p\u00e5<a href=\"https:\/\/spaceweathergallery.com\/index.php?title=Venus\"> spaceweather.com.<\/a><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Var la Lundmark hatten?<\/h2>\n\n\n\n<p>1951 gjorde veckotidningen <em>Se<\/em> ett stort reportage om <strong>Knut Lundmark<\/strong> &#8211; han var till och med omslagspojke &#8211; och en av bilderna av Se-fotografen<strong> Hans Malmberg <\/strong>i reportaget visade honom vid refraktorn p\u00e5 Lunds obsis.<\/p>\n\n\n\n<p>Min fr\u00e5ga: Var la Lundmark sin hatt?<\/p>\n\n\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/?attachment_id=83597\" rel=\"attachment wp-att-83597\"><img decoding=\"async\" width=\"225\" height=\"300\" class=\"aligncenter size-medium wp-image-83597\" alt=\"\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/IMG_0465-2-225x300.jpg\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/IMG_0465-2-225x300.jpg 225w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/IMG_0465-2-768x1024.jpg 768w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/IMG_0465-2-150x200.jpg 150w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/IMG_0465-2-1152x1536.jpg 1152w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/IMG_0465-2-1536x2048.jpg 1536w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2020\/04\/IMG_0465-2-scaled.jpg 1920w\" sizes=\"(max-width: 225px) 100vw, 225px\" \/><\/a><\/p>\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Malm\u00f6 och G\u00f6teborg simmar i samma b\u00e5t: Tufft f\u00f6r unga och skolor i coronatider Coronatsunamin sveper \u00e4ven \u00f6ver&nbsp;den astronomiska communityn, konstigt vore det annars. Men det g\u00e5r att kr\u00e5ngla sig&nbsp;f\u00f6rbi v\u00e5gskvalpet med lite smartness: Peter Hemborg, v\u00e5r egen astropedagog inom ASTB,&nbsp;kunde h\u00e4rom sistens&nbsp;med Jon Saalbachs hj\u00e4lp&nbsp;&nbsp;k\u00f6ra ett par av sina m\u00f6ten&nbsp; med den unga generationen&hellip;&nbsp;<a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/2020\/04\/03\/nr-27-2020\/\" rel=\"bookmark\">L\u00e4s mer &raquo;<span class=\"screen-reader-text\">Nr 27 2020<\/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\/83566"}],"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=83566"}],"version-history":[{"count":27,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/83566\/revisions"}],"predecessor-version":[{"id":83600,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/83566\/revisions\/83600"}],"wp:attachment":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/media?parent=83566"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/categories?post=83566"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/tags?post=83566"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}