{"id":4169,"date":"2021-10-27T22:09:54","date_gmt":"2021-10-28T01:09:54","guid":{"rendered":"https:\/\/www.apex-telescope.org\/ns\/?page_id=4169"},"modified":"2024-06-19T16:29:44","modified_gmt":"2024-06-19T20:29:44","slug":"lasma-large-apex-sub-millimetre-array","status":"publish","type":"page","link":"https:\/\/www.apex-telescope.org\/ns\/observing\/the-telescope\/instruments\/lasma-large-apex-sub-millimetre-array\/","title":{"rendered":"LASMA (Large APEX Sub-Millimetre Array)"},"content":{"rendered":"\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-66460e8\" data-block-id=\"66460e8\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-66460e8-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-706e71a\" data-block-id=\"706e71a\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-706e71a-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks\">\n<p>LASMA is a 7 pixel array of SIS mixers operating in the 345 GHz atmospheric band. It is a PI instrument developed by the <a href=\"https:\/\/www.mpifr-bonn.mpg.de\/technology\/submm\" target=\"_blank\" rel=\"noreferrer noopener\">Sub-mm technology division at MPIfR<\/a> and It is installed in the B- Nasmyth cabin of the telescope.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>The instrument layout consists of an hexagon of 6 pixels surrounding the central pixel. The separation between pixels on sky is about 40 arcsec and the full-width half-power beam size ranges between 17 and 23 arcsec, depending on the frequency used (between 268 and 375 GHz).<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Each pixel consists of a 2SB mixer, which provides an IF bandwidth of 4-8 GHz for each of the 2 sidebands. LO tuning is done automatically and to compensate for the FOV rotation in the Nasmyth cabin, an image derotator is installed as part of the warm optics.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>For more details about the instrument, please go to the <a href=\"https:\/\/www.mpifr-bonn.mpg.de\/5278286\/lasma\" target=\"_blank\" rel=\"noreferrer noopener\">LASMA pages at the MPIfR web site<\/a>.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-70a9574\" data-block-id=\"70a9574\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-70a9574-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks\">\n<div class=\"wp-block-image\"><figure class=\"alignleft size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.apex-telescope.org\/ns\/wp-content\/uploads\/2021\/10\/LASMA_pic.jpg\" alt=\"\" class=\"wp-image-4170\" width=\"290\" height=\"491\"\/><\/figure><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>LASMA is a 7 pixel array of SIS mixers operating in the 345 GHz atmospheric band. It is a PI instrument developed by the Sub-mm technology division at MPIfR and It is installed in the B- Nasmyth cabin of the <a href=\"https:\/\/www.apex-telescope.org\/ns\/observing\/the-telescope\/instruments\/lasma-large-apex-sub-millimetre-array\/\" class=\"read-more\">Read More &#8230;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":10,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ngg_post_thumbnail":0,"spay_email":"","footnotes":""},"class_list":["post-4169","page","type-page","status-publish","hentry"],"featured_image_urls":{"full":"","thumbnail":"","medium":"","medium_large":"","large":"","1536x1536":"","2048x2048":"","education-hub-thumb":""},"post_excerpt_stackable":"<p>LASMA is a 7 pixel array of SIS mixers operating in the 345 GHz atmospheric band. It is a PI instrument developed by the Sub-mm technology division at MPIfR and It is installed in the B- Nasmyth cabin of the telescope. The instrument layout consists of an hexagon of 6 pixels surrounding the central pixel. The separation between pixels on sky is about 40 arcsec and the full-width half-power beam size ranges between 17 and 23 arcsec, depending on the frequency used (between 268 and 375 GHz). Each pixel consists of a 2SB mixer, which provides an IF bandwidth of&hellip;<\/p>\n","category_list":"","author_info":{"name":"apex","url":"https:\/\/www.apex-telescope.org\/ns\/author\/apex\/"},"comments_num":"0 comments","featured_image_urls_v2":{"full":"","thumbnail":"","medium":"","medium_large":"","large":"","1536x1536":"","2048x2048":"","education-hub-thumb":""},"post_excerpt_stackable_v2":"<p>LASMA is a 7 pixel array of SIS mixers operating in the 345 GHz atmospheric band. It is a PI instrument developed by the Sub-mm technology division at MPIfR and It is installed in the B- Nasmyth cabin of the telescope. The instrument layout consists of an hexagon of 6 pixels surrounding the central pixel. The separation between pixels on sky is about 40 arcsec and the full-width half-power beam size ranges between 17 and 23 arcsec, depending on the frequency used (between 268 and 375 GHz). Each pixel consists of a 2SB mixer, which provides an IF bandwidth of&hellip;<\/p>\n","category_list_v2":"","author_info_v2":{"name":"apex","url":"https:\/\/www.apex-telescope.org\/ns\/author\/apex\/"},"comments_num_v2":"0 comments","_links":{"self":[{"href":"https:\/\/www.apex-telescope.org\/ns\/wp-json\/wp\/v2\/pages\/4169","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.apex-telescope.org\/ns\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.apex-telescope.org\/ns\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.apex-telescope.org\/ns\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.apex-telescope.org\/ns\/wp-json\/wp\/v2\/comments?post=4169"}],"version-history":[{"count":4,"href":"https:\/\/www.apex-telescope.org\/ns\/wp-json\/wp\/v2\/pages\/4169\/revisions"}],"predecessor-version":[{"id":4174,"href":"https:\/\/www.apex-telescope.org\/ns\/wp-json\/wp\/v2\/pages\/4169\/revisions\/4174"}],"up":[{"embeddable":true,"href":"https:\/\/www.apex-telescope.org\/ns\/wp-json\/wp\/v2\/pages\/10"}],"wp:attachment":[{"href":"https:\/\/www.apex-telescope.org\/ns\/wp-json\/wp\/v2\/media?parent=4169"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}