{"id":67126,"date":"2020-09-15T14:55:00","date_gmt":"2020-09-15T11:55:00","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/scientists-propose-possible-mechanisms-to-explain-coronal-mini-jets-in-activated-tornado-like-prominence\/"},"modified":"2020-09-15T14:55:00","modified_gmt":"2020-09-15T11:55:00","slug":"scientists-propose-possible-mechanisms-to-explain-coronal-mini-jets-in-activated-tornado-like-prominence","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/scientists-propose-possible-mechanisms-to-explain-coronal-mini-jets-in-activated-tornado-like-prominence\/","title":{"rendered":"#Scientists propose possible mechanisms to explain coronal mini-jets in activated tornado-like prominence"},"content":{"rendered":"

“#Scientists propose possible mechanisms to explain coronal mini-jets in activated tornado-like prominence<\/strong>”<\/p>\n

\n
\n
\n
\"Scientists<\/img>
\n Small-scale UV jets in an activated tornado-like prominence observed by spacecraft IRIS and SDO. Credit: CHEN\u00a0Huadong
\n <\/figcaption><\/figure>\n<\/div>\n<\/div>\n

Solar jets are a common phenomenon in the solar atmosphere. They mainly app<\/a>ear as transient collimated plasma ejections. Some studies have shown that jets may play an important role in heating the corona and initiating solar winds. \u00a0<\/p>\n

\n <\/section>\n

Dr. Chen Huadong\u00a0from the\u00a0National Astronomical Observatories of Chinese Academy of Science<\/a>s (NAOC) and his collaborators first found a particular type of small-scale jets, which arose singly or in clusters from a tornado-like prominence suspended in the corona, according to the study\u00a0published in the Astrophysical Journal Letters<\/i> in 2017.\u00a0<\/p>\n

The difference in the local plasma environment and magnetic field topology structure between these coronal mini-jets and the other jets previously reported suggests that they may have different formation mechanisms.\u00a0\u00a0
\nRecently,\u00a0an international research team led by Dr. Chen Huadong further\u00a0conducted a statistical analysis of the dynamical and energetic characteristics of the coronal mini-jets, and proposed two possible fine-scale magnetic reconnection mechanisms to explain the occurrence of the jets. The\u00a0study was\u00a0published in the Astrophysical Journal<\/i> on August 7.\u00a0
\nAccording to their results, magnetic reconnection probably takes place between the prominence field and the enveloping or background field. The enveloping field means the magnetic field closely enveloping the erupting prominence. The background field mainly refers to the potential field in the active region. This reconnection can be called external reconnection.\u00a0
\nThrough the physical process of magnetic reconnection, magnetic energy can be converted into thermal and kinetic energy, which would heat and accelerate the plasma of the prominence to move along the enveloping or background field to form the jets.\u00a0
\nAdditionally, solar tornado-like prominence usually has complex magnetic field structures. So magnetic reconnection may also occur between twisted or braided flux tubes within the prominence. This kind of reconnection can be named internal reconnection. Similarly, internal reconnection would also heat and accelerate the prominence mass to erupt in directions approximately perpendicular to the flux rope.\u00a0
\n“Since this event occurs near the solar limb, nonlinear force-free field extrapolations cannot be employed to help clarify the spatial relationship of the prominence field to its surrounding non-potential field. The role of the two mechanisms in formation of similar coronal mini-jets still needs more research work to confirm in the future,”\u00a0said Dr. Chen.\u00a0
\nOne\u00a0referee commented, “This study presents an important new fine-scale explosive solar phenomenon. Because these mini-jets are presumably produced by fine-scale bursts of magnetic reconnection, they open a new empirical window on the reconnection process in filament eruptions.”\u00a0<\/p>\n

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More information:<\/strong>
\n Huadong Chen et al. Coronal Mini-jets in an Activated Solar Tornado-like Prominence, The Astrophysical Journal<\/i> (2020). DOI: 10.3847\/1538-4357\/ab9cad\n <\/div>\n

\n Citation<\/strong>:
\n Scientists propose possible mechanisms to explain coronal mini-jets in activated tornado-like prominence (2020, September 15)
\n retrieved 15 September 2020
\n from https:\/\/phys.org\/news<\/a>\/2020-09-scientists-mechanisms-coronal-mini-jets-tornado-like.html<\/p>\n

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
\n part may be reproduced without the written permission. The content is provided for information purposes only.<\/p><\/div>\n<\/p><\/div>\n

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“#Scientists propose possible mechanisms to explain coronal mini-jets in activated tornado-like prominence” Small-scale UV jets in an activated tornado-like prominence observed by spacecraft IRIS and SDO. Credit: CHEN\u00a0Huadong Solar jets are a common phenomenon in the solar atmosphere. They mainly appear as transient collimated plasma ejections. Some studies have shown that jets may play an…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[5017,69495],"class_list":["post-67126","post","type-post","status-publish","format-standard","hentry","category-sciencee","tag-astronomy","tag-scientists-propose-possible-mechanisms-to-explain-coronal-mini-jets-in-activated-tornado-like-prominence"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/67126","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=67126"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/67126\/revisions"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=67126"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=67126"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=67126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}