{"id":42132,"date":"2013-06-04T22:28:50","date_gmt":"2013-06-04T21:28:50","guid":{"rendered":"http:\/\/www.astb.se\/cassiopeiabloggen\/?p=42132"},"modified":"2013-06-05T15:04:59","modified_gmt":"2013-06-05T14:04:59","slug":"nr-68-2013","status":"publish","type":"post","link":"https:\/\/www.astb.se\/cassiopeiabloggen\/2013\/06\/04\/nr-68-2013\/","title":{"rendered":"Nr 68 2013"},"content":{"rendered":"<h3><u>Hedersdoktor i Lund, hyllad p&aring; scenen i USA:<br \/>\n\t<\/u><\/h3>\n<h2>En musikal om Milton L Humason!<\/h2>\n<p>Det blir mycket USA i dagens W-blogg (som g&ouml;r en paus n&aring;gra dagar).<\/p>\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/61026174_128872318915.jpg\"><img decoding=\"async\" alt=\"\" class=\"alignleft size-full wp-image-42102\" height=\"108\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/61026174_128872318915.jpg\" title=\"\" width=\"80\" \/><\/a>Exempelvis: D&aring; och d&aring; har vi anledning att syssla med den fantastiske Mt Wilson-astronomen\/spektroskopisten <strong>Milton L Humason<\/strong>, vars enda akademiska &quot;grad&quot; var det hedersdoktorat han tilldelades i Lund 1950. Ett initiativ helt klart av <strong>Knut Lundmark<\/strong>. Samtidigt promoverades &auml;ven Mt Wilson\/Mt Palomar-chefen <strong>Ira S Bowen<\/strong>.<\/p>\n<p>Det verkar inte som om Humason personligen kunde komma till Lund 1950, men han var enormt stolt och tacksam &ouml;ver hedersbevisningen,<\/p>\n<p>Humasons g&aring;ng fr&aring;n &aring;snedrivare och v&auml;garbetare under Mt Wilson-observatoriets uppbyggnad till en av 1900-talets stora astronomiska uppt&auml;ckare &auml;r som en saga och f&ouml;rhoppningsvis ska Humason f&aring; en egen flik p&aring; v&aring;r Lundmark-sajt (www.knutlundmark.se). Under v&auml;gkneget p&aring; Mt Wilson blev Humason f&ouml;r&auml;lskad i&nbsp; dottern till en av chefsastronomerna, och p&aring; den v&auml;gen blev&nbsp; det.<\/p>\n<p>Om betydelsen av Humasons noggranna m&auml;tningar av galaxers radialhastigheter och Lundmarks intresse av dem, bevisar det brev av Humason till KL jag &auml;ger och som vi &aring;terger p&aring; Lundmark-sajten. Lundmark var het p&aring; gr&ouml;ten!<\/p>\n<p>P&aring; senare tid har Humason uppm&auml;rksammats p&aring; ett ganska m&auml;rkligt vis i USA:<\/p>\n<p>Komposit&ouml;ren&nbsp; <strong>Stan Peal<\/strong>&nbsp; skrev en musikal om honom 2008 kallad &quot;The Expanding Sky&quot;. P&aring; <a href=\"http:\/\/www.stanpeal.com\/expanding.htm\">Peals hemsida <\/a>finns ett par s&aring;ngnummer att ladda ner ur den 90 minuter l&aring;nga musikalen, som uruppf&ouml;rdes av Epic Arts Repertory Theatre i Charlotte, NC. Milton och <strong>Helen Humason<\/strong> kreerades av akt&ouml;rerna <strong>Lou Delassandro <\/strong>och <strong>Cindy Barringer<\/strong>.<\/p>\n<h2><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/meghanstan.jpg\"><img decoding=\"async\" alt=\"\" class=\"aligncenter size-medium wp-image-42098\" height=\"232\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/meghanstan-300x232.jpg\" title=\"Fr\u00e5n f\u00f6rest\u00e4llningen om Milton L Humason. Bildk\u00e4lla: Stan Peals hemsida.\" width=\"300\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/meghanstan-300x232.jpg 300w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/meghanstan.jpg 783w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/h2>\n<p>Efter pensioneringen sysslade Humason mest med sin favoritsyssels&auml;ttning, att fiska och att umg&aring;s med en god v&auml;n, en gammal vis kines. Han undanbad sig best&auml;mt att f&aring; ett teleskop av sina barn i f&ouml;delsedagspresent.<\/p>\n<h2>Haleteleskopet en alert folkpension&auml;r<\/h2>\n<p>Aprop&aring; ovanst&aring;ende: 3 juni 1948, f&ouml;r 65 &aring;r sen, invigdes formellt Mount Palomars 5,1-meters Hale-teleskop i Californien. Massor av astronomiska k&auml;ndisar var p&aring; plats.<\/p>\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/dedicationfromeastsm.jpg\"><img decoding=\"async\" alt=\"\" class=\"aligncenter size-large wp-image-42112\" height=\"355\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/dedicationfromeastsm-1024x809.jpg\" title=\"Bj\u00e4ssen invigs! Bildk\u00e4lla: Caltech\/Mt Palomar\" width=\"450\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/dedicationfromeastsm-1024x809.jpg 1024w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/dedicationfromeastsm-300x237.jpg 300w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/dedicationfromeastsm.jpg 1200w\" sizes=\"(max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>Efter en del finjusteringar kom teleskopet ig&aring;ng p&aring; allvar 1950, och det &auml;r fortfarande ett av v&auml;rldens mest funktionsdugliga.<\/p>\n<p>P&aring; en punkt &auml;r jag dock besviken: Observatoriets hemsida &auml;r p&aring; tok f&ouml;r inaktuell. &Auml;nd&aring; arbetas det mycket med t ex exoplaneter med Halebj&auml;ssen, vilket <a href=\"http:\/\/arxiv.org\/abs\/1303.2627\">denna rapport<\/a> visar.<\/p>\n<h2>Supernova i stj&auml;rnstr&ouml;m<\/h2>\n<p>P&aring; <a href=\"http:\/\/An SN candidate associated with a possible tidal stream On 2013-05-31UT, during the course of regular survey operations of CRTS, we discovered transient MLS130531:100208+115705. The source is has magnitude V=18 and appears to be associated with galaxy 2MASXJ10020847+1157123. Based on the galaxy's redshift (z=0.0362, SDSS DR9) the source has an absolute luminosity of Mv~-18. Upon visual inspection of the discovery data it was found that the transient coincides with an apparent stellar stream associated with a tidally disrupted dwarf galaxy. Archival SDSS and CHFT MegaPrime images of the host galaxy also support the existence of tidal stream associated with this galaxy. The visual inspection also serendipitously revealed numerous filaments and structures associated with CGCG 064-031, a galaxy situated 5.8'W, 29.4'S of 2MASXJ10020847+1157123 with a matching redshift (z=0.0364, NED). This source was previously noted as a &quot;very compact&quot; galaxy (Zwicky et al. 1961), yet is clearly extended by on-going mergers.  Follow up observations are required to confirm the nature of the supernova candidate and the existence of the possible tidal stream\">Astronomer&acute;s Telegram rapporteras <\/a>om en med&nbsp; s&ouml;kprogrammet CRTS uppt&auml;ckt SN-kandidat knuten till en galax och en med den f&ouml;rbunden stj&auml;rnstr&ouml;m, som i sin tur &auml;r ett resultat av en v&auml;xelverkande dv&auml;rggalax. Galaxen har katalogbeteckningen 2MASXJ10020847+1157123, har en r&ouml;df&ouml;rskjutning z = 0,0362 och den misstnkta supernovan en absolut magnitud p&aring; Mv~-18.<\/p>\n<p>P&aring; denna SDSS-upptagning kan vi skymta stj&auml;rnstr&ouml;mmarna:<\/p>\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/SDSSg.jpg\"><img decoding=\"async\" alt=\"\" class=\"aligncenter size-medium wp-image-42091\" height=\"248\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/SDSSg-300x248.jpg\" title=\"\" width=\"300\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/SDSSg-300x248.jpg 300w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/SDSSg.jpg 816w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Och h&auml;r ligger SN-kandidaten:<\/p>\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/SN.jpg\"><img decoding=\"async\" width=\"272\" height=\"300\" alt=\"\" class=\"aligncenter size-medium wp-image-42092\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/SN-272x300.jpg\" style=\"width: 299px; height: 329px;\" title=\"\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/SN-272x300.jpg 272w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/SN.jpg 486w\" sizes=\"(max-width: 272px) 100vw, 272px\" \/><\/a><\/p>\n<p>I (den astronomiska) n&auml;rheten ligger en annan galax och p&aring;verkar systemet gravitationellt.<\/p>\n<h2>TBO-utst&auml;llningen uppm&auml;rksammas<\/h2>\n<p><strong>Sergios<\/strong> utomhusutst&auml;llning med den &quot;vinddrivna&quot; raketen uppm&auml;rksammas p&aring; <em>Kv&auml;llspostens<\/em> kultursida 5 juni, sid 7.<\/p>\n<p>En lika v&auml;lformulerad som synpunktsrik och fram&aring;tsyftande notis&#8230;<\/p>\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/raket_sm.jpg\"><img decoding=\"async\" alt=\"\" class=\"aligncenter size-thumbnail wp-image-42142\" height=\"150\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/raket_sm-150x150.jpg\" title=\"Massmedial vindraket!\" width=\"150\" \/><\/a><\/p>\n<h2>Dv&auml;rgnovan i Aquila\/&Ouml;rnen<\/h2>\n<p>I dag s&aring;g ljuskurveutvecklingen f&ouml;r dv&auml;rgnovan <u>PNV J19150199+0719471 <\/u>ut s&aring; h&auml;r enligt AAVSO:s &quot;light curve generator&quot;:<\/p>\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/546682541-1.png\"><img decoding=\"async\" alt=\"\" class=\"aligncenter size-medium wp-image-42107\" height=\"157\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/546682541-1-300x157.png\" title=\"\" width=\"300\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/546682541-1-300x157.png 300w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/546682541-1.png 900w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Det g&aring;r, som synes, sakteliga utf&ouml;r.<\/p>\n<h2>Lokala universumet i 3 D<\/h2>\n<p><strong>H&eacute;l&egrave;ne M Courtois<\/strong> &auml;r f&ouml;rstanamn p&aring; en rapport, som med utg&aring;ngspunkt fr&aring;n olika parametrar diskuterar <a href=\"http:\/\/arxiv.org\/abs\/1306.0091\">v&aring;rt lokala universum i 3 D-termer.<\/a><\/p>\n<p>&Auml;ven<a href=\"http:\/\/vimeo.com\/64868713\"> en film<\/a> med H&eacute;l&egrave;ne som kommentator &aring;sk&aring;dligg&ouml;r v&aring;r del av v&auml;rlden inklusive tomrum (&quot;local void&quot;), filament m m har gjorts. Extremt pedagogiskt!<\/p>\n<h2>Percival Lowells Clark-refraktor snyggas till<\/h2>\n<p><strong>Christian Vestergaard <\/strong>p&aring;pekade f&ouml;r en tid sedan, att det 117 &aring;r gamla klassiska Clark-teleskopet, en 24-tummars refraktor, p&aring; Lowell Observatory i Flagstaff, Arizona, h&aring;ller p&aring; att restaureras. Med detta teleskop utf&ouml;rde <strong>Percial Lowell<\/strong> sina m&auml;rkliga Mars-studier, <strong>V C Slipher <\/strong>utf&ouml;rde de f&ouml;rsta observationerna som pekade p&aring; universums expansion, <strong>Clyde Tombaugh <\/strong>uppt&auml;ckte Pluto och teleskopet spelade ocks&aring; en roll i Apollo-projektets b&ouml;rjan genom kartl&auml;ggningen av m&aring;nytan.<\/p>\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/Percy.jpg\"><img decoding=\"async\" alt=\"\" class=\"aligncenter size-medium wp-image-42123\" height=\"300\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/Percy-240x300.jpg\" title=\"Percival Lowell spanar vid okularet...\" width=\"240\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/Percy-240x300.jpg 240w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/Percy.jpg 480w\" sizes=\"(max-width: 240px) 100vw, 240px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/Alvan_Clark_Refractor_Telescope_Lowell_Observatory.jpg\"><img decoding=\"async\" width=\"224\" height=\"300\" alt=\"\" class=\"aligncenter size-medium wp-image-42125\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/Alvan_Clark_Refractor_Telescope_Lowell_Observatory-224x300.jpg\" style=\"width: 234px; height: 312px;\" title=\".. refraktorn i sin helhet. Bildk\u00e4lla: The Lowell Observatory\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/Alvan_Clark_Refractor_Telescope_Lowell_Observatory-224x300.jpg 224w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/Alvan_Clark_Refractor_Telescope_Lowell_Observatory-767x1024.jpg 767w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/Alvan_Clark_Refractor_Telescope_Lowell_Observatory.jpg 800w\" sizes=\"(max-width: 224px) 100vw, 224px\" \/><\/a><\/p>\n<p>L&auml;get nu?<\/p>\n<p>Teleskopet har de senaste &aring;rtiondena brukats s&aring; mycket i den yttre popul&auml;rvetenskapliga verksamheten att det b&ouml;rjat g&aring; upp i limningen, och nu m&aring;ste det investeras ett antal hundra tusen kr i uppdatering av optik och mekanik, ny kupol m m. Folk sk&auml;nker&nbsp; gladeligen pengar f&ouml;rst&aring;s, och <a href=\"http:\/\/www.indiegogo.com\/projects\/restore-the-clark\">m&aring;let har ocks&aring; uppn&aring;tts<\/a>, f&ouml;rst&aring;r jag.<\/p>\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/specialevents_restoretheclark.jpg\"><img decoding=\"async\" alt=\"\" class=\"aligncenter size-medium wp-image-42120\" height=\"148\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/specialevents_restoretheclark-300x148.jpg\" title=\"\" width=\"300\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/specialevents_restoretheclark-300x148.jpg 300w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/specialevents_restoretheclark.jpg 535w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<h2>Inf&ouml;r nationaldagen 6 juni&#8230;.<\/h2>\n<p>&#8230;erinras om att i Sverige fick kvinnor allm&auml;n r&ouml;str&auml;tt f&ouml;rst 1922.<\/p>\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/images.jpeg\"><img decoding=\"async\" width=\"57\" height=\"80\" alt=\"\" class=\"alignleft size-full wp-image-42146\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/images.jpeg\" style=\"width: 27px; height: 38px;\" title=\"\" \/><\/a>Vi var v&auml;&auml;&auml;ldigt sent p&aring; det!<\/p>\n<p>Inf&ouml;r v&aring;r gurus, <strong>Knut Lundmarks<\/strong>, professorsinstallation 1929 p&aring;pekade Lunds universitetsrektor <strong>Axel Moberg <\/strong>i sin installationsinbjudan till h&ouml;gtiden i aulan:<br \/>\n\t&quot;F&ouml;r damer &auml;ro platser reserverade p&aring; aulans galleri; tilltr&auml;de fr&aring;n kl. 11.30 f.m.&quot;<\/p>\n<h2>Gubbarna i m&aring;nen<\/h2>\n<p>Tack till <strong>Rune Fogelquist,<\/strong> som l&aring;ter mig f&aring; &aring;terge denna illustration ur <em>*Asterisken<\/em> nr 4 2008 &#8211; m&aring;nen full av gubbar. Rune tog m&aring;nbilden, <strong>Helen Sch&ouml;n<\/strong> photoshoppade.<\/p>\n<p>Samtliga gentlemen har f&aring;tt kratrar uppkallade efter sig.<\/p>\n<p>Hur m&aring;nga av gubbsen kan du identifiera? R&auml;tt svar i n&auml;sta blogg.<\/p>\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/Moongubben.jpg\"><img decoding=\"async\" alt=\"\" class=\"aligncenter size-full wp-image-42103\" height=\"342\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/Moongubben.jpg\" title=\"\" width=\"227\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/Moongubben.jpg 227w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2013\/06\/Moongubben-199x300.jpg 199w\" sizes=\"(max-width: 227px) 100vw, 227px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hedersdoktor i Lund, hyllad p&aring; scenen i USA: En musikal om Milton L Humason! Det blir mycket USA i dagens W-blogg (som g&ouml;r en paus n&aring;gra dagar). Exempelvis: D&aring; och d&aring; har vi anledning att syssla med den fantastiske Mt Wilson-astronomen\/spektroskopisten Milton L Humason, vars enda akademiska &quot;grad&quot; var det hedersdoktorat han tilldelades i Lund&hellip;&nbsp;<a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/2013\/06\/04\/nr-68-2013\/\" rel=\"bookmark\">L\u00e4s mer &raquo;<span class=\"screen-reader-text\">Nr 68 2013<\/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":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/42132"}],"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=42132"}],"version-history":[{"count":11,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/42132\/revisions"}],"predecessor-version":[{"id":42148,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/42132\/revisions\/42148"}],"wp:attachment":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/media?parent=42132"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/categories?post=42132"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/tags?post=42132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}