{"id":24164,"date":"2020-07-09T20:57:00","date_gmt":"2020-07-09T17:57:00","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/astronomers-spot-unidentifiable-circular-phenomena-over-australia\/"},"modified":"2020-07-09T20:57:00","modified_gmt":"2020-07-09T17:57:00","slug":"astronomers-spot-unidentifiable-circular-phenomena-over-australia","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/astronomers-spot-unidentifiable-circular-phenomena-over-australia\/","title":{"rendered":"#Astronomers spot unidentifiable \u2018circular\u2019 phenomena over Australia"},"content":{"rendered":"

“#Astronomers spot unidentifiable \u2018circular\u2019 phenomena over Australia<\/strong>”<\/p>\n

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July 9, 2020 |<\/span> 1:57pm <\/p>\n

\n Australian astronomers have detected a series<\/a> of inexplicable signals that they believe could be \u201ca new class of astronomical object.\u201d<\/p>\n

A team of international researchers at the Australian Square Kilometre Array Pathfinder (ASKAP), in the continent\u2019s Western region, has dubbed the objects \u201codd radio circles,\u201d or ORCs.<\/p>\n

Led by astrophysicist Ray Norris of Western Sydney University, the scientists shared their findings on arXiv, an open-access scholarly articles archive, while their report awaits peer review for publication into the journal Nature Astronomy.<\/p>\n

Their study describe four ORCs, which app<\/a>ear as glowing orbs, three of which have distinct, bright rings around the circular object \u2014 and ruled out several possible explanations for their existence.<\/p>\n

\u201cCircular features are well-known in radio astronomical images, and usually represent a spherical object such as a supernova remnant, a planetary nebula, a circumstellar shell, or a face-on disc such as a protoplanetary disc or a star-forming galaxy,\u201d\u00a0they wrote in their report.<\/p>\n

\u201cThey may also arise from imaging [artifacts] around bright sources caused by calibration errors or inadequate deconvolution. Here we report the discovery of a class of circular feature in radio images that do not seem to correspond to any of these known types of object or [artifact], but rather appear to be a new class of astronomical object,\u201d they explained.<\/p>\n

The ORCs were first spotted in 2019, during a survey of the night sky which lasted from July to November for the Evolutionary Map of the Universe (EMU). They explain that one undefined object could be considered a glitch, but three or more suggests a pattern. The \u201cradio quiet zone\u201d surrounding ASKAP makes the likelihood of an instrumental quirk less probable, according to the Live Science<\/a> report. Furthermore, archival data from the Giant MetreWave Radio Telescope in India confirmed the presence of one of the ORCs discovered at ASKAP.<\/p>\n

\u201c[The objects] may well point to a new phenomenon that we haven\u2019t really probed yet,\u201d said Kristine Spekkens, from the Royal Military College of Canada and Queen\u2019s University.<\/p>\n

\u201cIt may also be that these are an extension of a previously known class of objects that we haven\u2019t been able to explore,\u201d Spekkens, who was not involved in the study, told Live Science on Wednesday. She also noted that the imaging revealed galaxies at the center of two of the four ORCs, which may indicate that they were formed by those galaxies.<\/p>\n

Scientists for the EMU project have said that upcoming studies of radio wavelengths could uncover some 70 million new radio objects, adding to their current log of just 2.5 million such phenomena.<\/p>\n

\u201cThis is a really nice indication of the shape of things to come in radio astronomy in the next couple of years,\u201d added Spekkens. \u201cHistory shows us that when we open up a new [avenue of looking at] space to explore \u2026 we always find new and exciting things.\u201d\n <\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n

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Source<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

“#Astronomers spot unidentifiable \u2018circular\u2019 phenomena over Australia” July 9, 2020 | 1:57pm Australian astronomers have detected a series of inexplicable signals that they believe could be \u201ca new class of astronomical object.\u201d A team of international researchers at the Australian Square Kilometre Array Pathfinder (ASKAP), in the continent\u2019s Western region, has dubbed the objects \u201codd…<\/p>\n","protected":false},"author":1,"featured_media":24165,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[1],"tags":[35728],"class_list":["post-24164","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","tag-astronomers-spot-unidentifiable-circular-phenomena-over-australia"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/24164","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=24164"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/24164\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/24165"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=24164"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=24164"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=24164"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}