{"id":1929,"date":"2016-03-25T14:28:44","date_gmt":"2016-03-25T14:28:44","guid":{"rendered":"http:\/\/tbg.vds-astro.de\/?page_id=1929"},"modified":"2016-11-21T21:46:21","modified_gmt":"2016-11-21T21:46:21","slug":"ngc-598-m-33","status":"publish","type":"page","link":"https:\/\/tbg.vdsastro.de\/?page_id=1929","title":{"rendered":"NGC 598 (M 33)"},"content":{"rendered":"<style id=\"bwg-style-0\">      #bwg_container1_0 #bwg_container2_0 .image_browser_images_conteiner_0 * {        -moz-box-sizing: border-box;        box-sizing: border-box;      }      #bwg_container1_0 #bwg_container2_0 .image_browser_images_conteiner_0{\t\tbackground-color: rgba(245, 245, 245, 0.90);\t\ttext-align: center;\t\twidth: 100%;\t\tborder-style: none;\t\tborder-width: 2px;\t\tborder-color: #F7F7F7;\t\tpadding: 4px;\t\tborder-radius: 0;\t\tposition:relative;      }      #bwg_container1_0 #bwg_container2_0 .image_browser_images_0 {\t\tdisplay: inline-block;\t\t-moz-box-sizing: border-box;\t\tbox-sizing: border-box;\t\tfont-size: 0;\t\ttext-align: center;\t\tmax-width: 100%;\t\twidth: 100%; 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Neyer published a deep image of NGC 598 (M 33). More details about this image you will find in the text below.                   <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<style>      \/*pagination styles*\/      #bwg_container1_0 #bwg_container2_0 .tablenav-pages_0 {\t\t\t\ttext-align: center;\t\t\t\tfont-size: 12px;\t\t\t\tfont-family: segoe ui;\t\t\t\tfont-weight: bold;\t\t\t\tcolor: #666666;\t\t\t\tmargin: 6px 0 4px;\t\t\t\tdisplay: block;      }      @media only screen and (max-width : 320px) {      #bwg_container1_0 #bwg_container2_0 .displaying-num_0 {     \t display: none;      }      }      #bwg_container1_0 #bwg_container2_0 .displaying-num_0 {\t\t\t\tfont-size: 12px;\t\t\t\tfont-family: segoe ui;\t\t\t\tfont-weight: bold;\t\t\t\tcolor: #666666;\t\t\t\tmargin-right: 10px;\t\t\t\tvertical-align: middle;      }      #bwg_container1_0 #bwg_container2_0 .paging-input_0 {\t\t\t\tfont-size: 12px;\t\t\t\tfont-family: segoe ui;\t\t\t\tfont-weight: bold;\t\t\t\tcolor: #666666;\t\t\t\tvertical-align: middle; 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           default:              document.getElementById('page_number_0').value = 1;          }          bwg_ajax('gal_front_form_0', '0', 'bwg_image_browser_0', '0', '', 'gallery', 0, '', '', load_more, '', 1);        }                    jQuery('.first-page disabled').on('click', function () {              spider_page_0(this, 1, -2, 'numeric');              return false;            });            jQuery('.prev-page disabled').on('click', function () {              spider_page_0(this, 1, -1, 'numeric');              return false;            });            jQuery('.next-page-0').on('click', function () {              spider_page_0(this, 1, 1, 'numeric');              return false;            });            jQuery('.last-page-0').on('click', function () {              spider_page_0(this, 1, 2, 'numeric');              return false;            });        \t\t\t\t\/* Change page on input enter. *\/        function bwg_change_page_0( e, that ) {          if (  e.key == 'Enter' ) {            var to_page = parseInt(jQuery(that).val());            var pages_count = jQuery(that).parents(\".pagination-links\").data(\"pages-count\");            var current_url_param = jQuery(that).attr('data-url-info');            if (to_page > pages_count) {              to_page = 1;            }\t \t\t\t\t\t\t\t\t\t\t\t\tspider_page_0(this, to_page, 0, 'numeric');\t\t\t\t\t\t\treturn false;\t\t\t\t\t\t          }          return true;        }        jQuery('.bwg_load_btn_0').on('click', function () {            spider_page_0(this, 1, 1, true);            return false;        });      <\/script>      <\/span>                <\/div>\n<\/p><\/form>\n<style>          #bwg_container1_0 #bwg_container2_0 #spider_popup_overlay_0 {          background-color: #000000;          opacity: 0.70;          }          <\/style>\n<div id=\"bwg_spider_popup_loading_0\" class=\"bwg_spider_popup_loading\"><\/div>\n<div id=\"spider_popup_overlay_0\" class=\"spider_popup_overlay\" onclick=\"spider_destroypopup(1000)\"><\/div>\n<p>        <input type=\"hidden\" id=\"bwg_random_seed_0\" value=\"2031434184\">                <\/div>\n<\/p><\/div>\n<p>    <script>      if (document.readyState === 'complete') {        if( typeof bwg_main_ready == 'function' ) {          if ( jQuery(\"#bwg_container1_0\").height() ) {            bwg_main_ready(jQuery(\"#bwg_container1_0\"));          }        }      } else {        document.addEventListener('DOMContentLoaded', function() {          if( typeof bwg_main_ready == 'function' ) {            if ( jQuery(\"#bwg_container1_0\").height() ) {             bwg_main_ready(jQuery(\"#bwg_container1_0\"));            }          }        });      }    <\/script>    <\/p>\n<p><strong><span style=\"color: #999999;\">H II regions in Messier 33<\/span><\/strong><\/p>\n<p><span style=\"color: #999999;\">The Sc galaxy M 33 is apart from our Milky Way and the Andromeda Nebula the third largest galaxy in the Local Group of galaxies. It\u00b4s distance is 809 kpc, so that the apparent diameter of 65 arcmin leads to a real diameter of about 15.3 kpc. The equatorial coordinates (J2000) are: RA = 01 h 33,9 min, DEC = +30 \u00b0 39 &#8216;.<\/span><\/p>\n<p><span style=\"color: #999999;\">M 33 shows a mean color index B-V = 0.55 mag. This means a blue color in the galaxy\u00b4s spiral arms, resulting from the huge amount of young and hot stars and stellar associations, which were born only 4 to 6 million years ago. The former starburst was accompanied by an enormous number of H II regions, tracing the spiral arm structure. In many cases these H II regions present a bubble-like structure, caused by the stellar winds of central Wolf Rayet and\/or O-type stars. But it should be emphasized that some of the H II regions also show strong emission in [O III].<\/span><\/p>\n<p><span style=\"color: #999999;\">The surrounding of M 33 can be characterized by faint cirrus clouds, being produced by the Milky Way. But there are also some extremely faint areas of outlying stars, detected in 2014 with the 4-m telescope of Hawaii. These faint features are presented in an inverted view.<\/span><\/p>\n<p><span style=\"color: #999999;\">TBG member Fabian Neyer has got this new image with an apochromatic refractor TEC 140 (f\/7.2). The field of view is 121&#8242; x 81&#8242;. Although this is quite small, we can see the galaxy clearly being resolved into individual stars. Fabian used a CCD camera SBIG STL-11000M with Baader filters. The exposure time was 10.3-7.5-4.7-5.2-6.5 h for L(H\u03b1+[NII])RGB, this means a total of 34.2 h. The individual exposures were taken in 17 nights between october 2012 and october 2014. In order to get more pronounced H II regions, the H\u03b1-emission was isolated by subtracting the red continuum and following addition to the R image.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><strong><span style=\"color: #999999;\">Special literature regarding Messier 33:<\/span><\/strong><\/p>\n<p><span style=\"color: #999999;\">Court\u00e8s G. et al.: H-alpha survey of M33 with the six-meter telescope. Morphology of the general diffuse emission, evidence for a chaotic medium of bubbles and filaments; A&amp;A 174, 28-56 (3\/1987) (<a href=\"http:\/\/adsabs.harvard.edu\/full\/1987A%26A...174...28C\">link to publication<\/a>)<\/span><\/p>\n<p><span style=\"color: #999999;\">Drissen L., Shara M.M., Moffat A.F.J.: Ring nebulae around Wolf-Rayet stars in M33; AJ 101, 1659-1662, 1947-1951 (5\/1991) (<a href=\"http:\/\/adsabs.harvard.edu\/full\/1991AJ....101.1659D\">link to publication<\/a>)<\/span><\/p>\n<p><span style=\"color: #999999;\">Hunter D.A.: Imaging and spectroscopy of ionized shells in M33 and M31; AJ 108, 1658-1666 (1994) (<a href=\"http:\/\/adsabs.harvard.edu\/full\/1994AJ....108.1658H\">link to publication<\/a>)<\/span><\/p>\n<p><span style=\"color: #999999;\">Hunter D.A. Et al.: The Wolf-Rayet star population in the most massive giant H II regions of M33; ApJ 456, 174 (1\/1996) (<a href=\"http:\/\/articles.adsabs.harvard.edu\/cgi-bin\/nph-iarticle_query?1996ApJ...456..174H&amp;amp;data_type=PDF_HIGH&amp;amp;whole_paper=YES&amp;amp;type=PRINTER&amp;amp;filetype=.pdf\">link to publication<\/a>)<\/span><\/p>\n<p><span style=\"color: #999999;\">Pellerin A.: Massive stellar content of giant H II regions in M33 and M101; AJ 131, 849-858 (2\/2006) (<a href=\"http:\/\/iopscience.iop.org\/article\/10.1086\/499073\/fulltext\/\">link to publication<\/a>)<\/span><\/p>\n<p><span style=\"color: #999999;\">McConnachie A.W. et al.: The Photometric Properties of a Vast Stellar Substructure in the Outskirts of M33; ApJ 723, 1038-1052 (2010) (<a href=\"http:\/\/iopscience.iop.org\/0004-637X\/723\/2\/1038\/pdf\/apj_723_2_1038.pdf\">link to publication<\/a>)<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: left;\"><span style=\"color: #c0c0c0;\">Back to<\/span> <a title=\"results\" href=\"http:\/\/tbg.vds-astro.de\/?page_id=44\">results<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>H II regions in Messier 33 The Sc galaxy M 33 is apart from our Milky Way and the Andromeda Nebula the third largest galaxy in the Local Group of galaxies. It\u00b4s distance is 809 kpc, so that the apparent &hellip; <a href=\"https:\/\/tbg.vdsastro.de\/?page_id=1929\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":44,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1929","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/tbg.vdsastro.de\/index.php?rest_route=\/wp\/v2\/pages\/1929","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tbg.vdsastro.de\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/tbg.vdsastro.de\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/tbg.vdsastro.de\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tbg.vdsastro.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1929"}],"version-history":[{"count":0,"href":"https:\/\/tbg.vdsastro.de\/index.php?rest_route=\/wp\/v2\/pages\/1929\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/tbg.vdsastro.de\/index.php?rest_route=\/wp\/v2\/pages\/44"}],"wp:attachment":[{"href":"https:\/\/tbg.vdsastro.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1929"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}