{"id":1585,"date":"2024-06-14T10:12:53","date_gmt":"2024-06-14T07:12:53","guid":{"rendered":"https:\/\/stellar-h2020.eu\/?p=1585"},"modified":"2024-06-21T12:01:40","modified_gmt":"2024-06-21T09:01:40","slug":"stellar-seminar-the-distortion-of-radio-observations-by-the-heliosphere","status":"publish","type":"post","link":"https:\/\/stellar-h2020.eu\/index.php\/2024\/06\/14\/stellar-seminar-the-distortion-of-radio-observations-by-the-heliosphere\/","title":{"rendered":"STELLAR Seminar: &#8220;The Distortion of Radio Observations by the Heliosphere&#8221;"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"alignleft size-medium is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"787\" height=\"1049\" src=\"https:\/\/stellar-h2020.eu\/wp-content\/uploads\/2024\/06\/Chrysaphi_photo-edited.jpg\" alt=\"\" class=\"wp-image-1581\" style=\"width:266px;height:auto\" srcset=\"https:\/\/stellar-h2020.eu\/wp-content\/uploads\/2024\/06\/Chrysaphi_photo-edited.jpg 787w, https:\/\/stellar-h2020.eu\/wp-content\/uploads\/2024\/06\/Chrysaphi_photo-edited-225x300.jpg 225w, https:\/\/stellar-h2020.eu\/wp-content\/uploads\/2024\/06\/Chrysaphi_photo-edited-768x1024.jpg 768w\" sizes=\"auto, (max-width: 787px) 100vw, 787px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"has-medium-font-size\"><strong>&#8220;The Distortion of Radio Observations by the Heliosphere&#8221;<br>Dr. Nicolina Chrysaphi<\/strong><br>Laboratory of Plasma Physics, Sorbonne University<br><strong>Thursday 20 June<\/strong> <strong>2024, 15h CET<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-vivid-green-cyan-color has-text-color has-link-color wp-elements-afc8b476372e4ff277428e39d177da01\"><a href=\"https:\/\/youtu.be\/JJWAbPB7_DM\">The Full Seminar Talk Available Here<\/a><\/h3>\n\n\n\n<p class=\"has-medium-font-size\"><strong>Abstract: <\/strong><br>Radio photons can interact with heliospheric density fluctuations that influence their observed properties, whether the photons have solar or extra-solar origins. I will demonstrate the importance of accounting for<br>such interactions, with particular focus on scattering which is the dominant radio-wave propagation effect. By combining observations of solar radio bursts and simulations, we showed that scattering is anisotropic and that ignoring its effects can be detrimental to any inferences made from observations. Such anisotropy also induces a dependence of radio measurements on the observer\u2019s angular position, including on the observed size, position, and flux. However, we recently employed an improved fitting method and analysed multi-vantage observations from four angularly-separated spacecraft, identifying the decay and rise times as the only radio burst measurements which are independent of the observer\u2019s position. We also identify scattering effects as an important contributor to the rise phase of the solar radio light curves we record, adding to our understanding of the plasma emission mechanism.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;The Distortion of Radio Observations by the Heliosphere&#8221;Dr. Nicolina ChrysaphiLaboratory of Plasma Physics, Sorbonne UniversityThursday 20 June 2024, 15h CET The Full Seminar Talk Available Here Abstract: Radio photons can interact with heliospheric density fluctuations that influence their observed properties, whether the photons have solar or extra-solar origins. I will demonstrate the importance of accounting [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1585","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/stellar-h2020.eu\/index.php\/wp-json\/wp\/v2\/posts\/1585","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stellar-h2020.eu\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/stellar-h2020.eu\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/stellar-h2020.eu\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/stellar-h2020.eu\/index.php\/wp-json\/wp\/v2\/comments?post=1585"}],"version-history":[{"count":5,"href":"https:\/\/stellar-h2020.eu\/index.php\/wp-json\/wp\/v2\/posts\/1585\/revisions"}],"predecessor-version":[{"id":1590,"href":"https:\/\/stellar-h2020.eu\/index.php\/wp-json\/wp\/v2\/posts\/1585\/revisions\/1590"}],"wp:attachment":[{"href":"https:\/\/stellar-h2020.eu\/index.php\/wp-json\/wp\/v2\/media?parent=1585"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stellar-h2020.eu\/index.php\/wp-json\/wp\/v2\/categories?post=1585"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stellar-h2020.eu\/index.php\/wp-json\/wp\/v2\/tags?post=1585"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}