{"id":176595,"date":"2024-11-17T07:52:20","date_gmt":"2024-11-17T07:52:20","guid":{"rendered":"https:\/\/news.talkwithrattan.com\/index.php\/2024\/11\/17\/new-3d-map-of-local-hot-bubble-reveals-interstellar-tunnel-to-superbubble\/"},"modified":"2024-11-17T07:52:20","modified_gmt":"2024-11-17T07:52:20","slug":"new-3d-map-of-local-hot-bubble-reveals-interstellar-tunnel-to-superbubble","status":"publish","type":"post","link":"https:\/\/news.talkwithrattan.com\/index.php\/2024\/11\/17\/new-3d-map-of-local-hot-bubble-reveals-interstellar-tunnel-to-superbubble\/","title":{"rendered":"New 3D Map of Local Hot Bubble Reveals Interstellar Tunnel to Superbubble"},"content":{"rendered":"
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Astronomers<\/a> have crafted a detailed three-dimensional map of the Local Hot Bubble (LHB), a vast, low-density region surrounding our solar system. This bubble, filled with hot, X-ray-emitting gas, has been a subject of study since the 1970s, and recent data from the eROSITA All-Sky Survey has provided new insights into its structure and history. The eROSITA telescope<\/a>, which operates as part of the Spectrum-Roentgen-Gamma (SRG) mission, has allowed astronomers to view the bubble with unprecedented clarity by observing X-ray activity from outside Earth’s<\/a> geocorona.<\/p>\n

The new map reveals intriguing temperature variations within the LHB, attributed to stellar winds and supernova explosions. These phenomena cause certain regions of the bubble to expand, providing a more dynamic picture of its evolution. A particular discovery is the identification of an \u201cescape tunnel\u201d directed towards the constellation Centaurus. This tunnel may be a connection to another superbubble in the galaxy, formed by active young stars.<\/p>\n

The History of the Local Hot Bubble<\/h2>\n

The presence of the LHB has been recognised for nearly five decades, and its origins are believed to be linked to supernova activity. Early studies<\/a> of the bubble were hindered by interference from X-ray emissions within Earth’s atmosphere. However, the eROSITA telescope, launched in 2019, has now provided astronomers with the cleanest X-ray data of the bubble. Michael Yeung, a researcher at the Max Planck Institute, noted that the eRASS1 data, which was collected during a period of low solar wind activity, offers the most precise view of the X-ray sky to date.<\/p>\n

The mapping of the Milky Way’s hemisphere into around 2,000 regions has revealed a temperature difference between the Galactic North and South, with the Northern hemisphere being cooler. This discovery hints at an internal temperature disparity within the LHB.<\/p>\n

A New Interstellar Tunnel and Its Implications<\/h2>\n

Along withtemperature variations, the eROSITA data has revealed a previously unknown interstellar tunnel pointing towards the Centaurus constellation. This tunnel appears to connect the LHB with a hot gas corridor in the galaxy, suggesting a larger network of such tunnels across interstellar space.<\/p>\n

The team also noted the presence of dense molecular clouds at the edges of the LHB, potentially a remnant of the bubble’s formation. Gabriele Ponti, an MPE scientist, emphasised that the solar system is located in the centre of this bubble, though the Sun entered the LHB only a few million years ago \u2013 a brief moment in the Sun’s 4.6-billion-year history.<\/p>\n

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Astronomers have crafted a detailed three-dimensional map of the Local Hot Bubble (LHB), a vast, low-density region surrounding our solar system. This bubble, filled with hot, X-ray-emitting gas, has been a subject of study since the 1970s, and recent data from the eROSITA All-Sky Survey has provided new insights into its structure and history. The […]<\/p>\n","protected":false},"author":2,"featured_media":176596,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":"","fifu_image_url":"https:\/\/i.gadgets360cdn.com\/large\/9_Nov_article_2_full_1731164367205.jpg","fifu_image_alt":"","footnotes":""},"categories":[607],"tags":[36994,138269,138266,5632,6132,138267,2307,2687,138265,1185,138268,21283,74483,128056],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/posts\/176595"}],"collection":[{"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/comments?post=176595"}],"version-history":[{"count":1,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/posts\/176595\/revisions"}],"predecessor-version":[{"id":176597,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/posts\/176595\/revisions\/176597"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/media\/176596"}],"wp:attachment":[{"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/media?parent=176595"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/categories?post=176595"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/tags?post=176595"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}