Supernova: First image of a double stellar explosion

Therefore,

Supernova: first image double stellar:

Astronomers have captured the traces of a double explosion which completed the existence of a star. Nevertheless, providing first visual proof of this previously theoretical scenario, in a study on Wednesday.

The supernovae, these cataclysms of certain stars at the end of their life, remain in many ways mysterious. Therefore, Because the event, which sees the imploser star, is as sudden as they are immense.

From a mass similar to that of the sun, the white dwarfs concentrate supernova: first image double stellar their material in a much smaller volume. However, They are deemed to end their existence by turning slowly. Nevertheless, to become black dwarfs – theorized without ever having been observed -, or by exploding in supernova.

“The explosions of white dwarfs play a critical role in astronomy. Nevertheless, ” noticed in a press release from the European Austral Observatory the doctoral student Priyam Das, the first author of the study published in “Nature”. For example, Especially because these events produce a number of elements. Therefore, including iron, which will serve as a raw material to form new stars. Similarly, Despite this “the long -standing puzzle of the exact mechanism triggering the explosion remains irresolved”, according to Priyam Das.

Second confirmed model

All the models agree on a scenario in which the white dwarf accumulates matter by stealing it from a twin star. Therefore, until imploding under its supernova: first image double stellar own mass. Nevertheless, But recent studies have pointed out towards a second possibility. Therefore, in which the white dwarf is dragging itself in a helium blanket stolen from its partner, and which “can become unstable and detonate”, according to the press release. Consequently, The shock wave of this blast would then compress the white dwarf, which would in turn explode in supernova.

Thanks to the Muse instrument installed on the very large telescope of the Austral European Observatory (ESO) in Chile. In addition, the team of astronomers has captured a “photographic instantaneous” of the remains of the event, baptized SNR 0509, and occurring around 300 to 330 years ago in the Magellan cloud, close to the Milky Way. Meanwhile, In accordance with theory. For example, these images show two distinct rings of calcium, colored in blue in the images of Muse, each corresponding to an explosion.

It is a “clear indication” of what the “double detonation mechanism takes place in nature”. Furthermore, according to astronomer Ivo Seitenzahl, of the German Institute supernova: first image double stellar of Heidelberg for theoretical studies, which led observations.

(afp)

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In addition, “width”:1200,”height”:675,”aspectRatio”:1.77778,”mediaType”:”image/jpeg”},”1200px_2.25_1″:{“src”:”https://image.lematin.ch/2025/07/02/8f977964-7f6e-40d5-b77a-62a2c84699c8.jpg?auto=format%2Ccompress%2Cenhanceu0026fit=maxu0026w=1200u0026h=1200u0026rect=0%2C333%2C3000%2C1333u0026s=c2bf5694d2e848531a6cc53d7e4f717b”. “avifSrc”:”https://image.lematin.ch/2025/07/02/8f977964-7f6e-40d5-b77a-62a2c84699c8.jpg?auto=format%2Ccompress%2Cenhanceu0026fit=maxu0026w=1200u0026h=1200u0026rect=0%2C333%2C3000%2C1333u0026fm=avifu0026s=70315f0479518181d3d69e161bb1ad2e”. Additionally, “width”:1200,”height”:533,”aspectRatio”:2.25. “mediaType”:”image/jpeg”}},”description”:””},”titleHeader”:”Espace”,”title”:”Première image d’une étoile mourant dans une double explosion”,”lead”:”Jusque-là uniquement théorique, une supernova a pu être observée, se drapant d’hélium avant de détonner.”,”kickword”:{},”styles”:{“name”:”Default”},”useEmbedUrl”:false},”facebook”:{“published”:”2025-07-02T14:00:52.630Z”,”updated”:”2025-07-02T14:00:52.630Z”. Furthermore, “mainCategoryName”:”Santé u0026 Environnement”,”mainCategoryUrlPath”:”santeenvironnement”,”mainCategoryFullUrlPath”:”santeenvironnement”,”url”:”/story/espace-premiere-image-d-une-etoile-mourant-dans-une-double-explosion-103373970″,”urlSlug”:”espace-premiere-image-d-une-etoile-mourant-dans-une-double-explosion”,”openInNewWindow”:false,”readingTime”:120,”wordCount”:476,”settings”:{“commentRisk”:”high”,”commentingEnabled”:true,”sharingEnabled”:true,”likesEnabled”:true,”renderedInWebView”:false,”publicationDateExposed”:true,”adsEnabled”:true,”allowRobots”:true,”headDisabled”:false},”authors”:[{“type”:”agency”,”name”:”afp”}],”image”:{“id”:”JEMLJKC7B-KK”,”variants”:{“1200px”:{“src”:”https://image.lematin.ch/2025/07/02/8f977964-7f6e-40d5-b77a-62a2c84699c8.jpg?auto=format%2Ccompress%2Cenhanceu0026fit=maxu0026w=1200u0026h=1200u0026rect=0%2C0%2C3000%2C2000u0026s=619daf5b9317d8eaac7ef32d182f8d23″. “avifSrc”:”https://image.lematin.ch/2025/07/02/8f977964-7f6e-40d5-b77a-62a2c84699c8.jpg?auto=format%2Ccompress%2Cenhanceu0026fit=maxu0026w=1200u0026h=1200u0026rect=0%2C0%2C3000%2C2000u0026fm=avifu0026s=eb232877f7a6b24bb5880532f1e7da25″. Moreover, “maxWidth”:1200,”maxHeight”:1200,”width”:1200,”height”:800,”aspectRatio”:1.5,”mediaType”:”image/jpeg”,”focusPoint”:{“x”:0.5,”y”:0.5}},”fix1200x675px”:{“src”:”https://image.lematin.ch/2025/07/02/8f977964-7f6e-40d5-b77a-62a2c84699c8.jpg?auto=format%2Ccompress%2Cenhanceu0026fit=cropu0026w=1200u0026h=675u0026rect=0%2C0%2C3000%2C2000u0026crop=facesu0026s=98478e419af19bc85814313372e6e972″. “avifSrc”:”https://image.lematin.ch/2025/07/02/8f977964-7f6e-40d5-b77a-62a2c84699c8.jpg?auto=format%2Ccompress%2Cenhanceu0026fit=cropu0026w=1200u0026h=675u0026rect=0%2C0%2C3000%2C2000u0026crop=facesu0026fm=avifu0026s=815165fc0682d55478ad096d634cc4a1″. Also, “maxWidth”:1200,”maxHeight”:675,”width”:1200,”height”:675,”aspectRatio”:1.7777777777777777,”mediaType”:”image/jpeg”,”focusPoint”:{“x”:0.5,”y”:0.5}}}}. “titleHeader”:”Espace”,”title”:”Première image d’une étoile mourant dans une double explosion”,”lead”:”Des astronomes ont observé une supernova se drapant d’hélium avant d’exploser, confirmant une théorie. L’étoile naine blanche a accumulé de la matière volée à son étoile jumelle, causant une double détonation.”,”kickword”:{},”styles”:{“name”:”Default”},”useEmbedUrl”:false,”titleSet”:true,”leadSet”:true},”twitter”:{“published”:”2025-07-02T14:00:52.630Z”,”updated”:”2025-07-02T14:00:52.630Z”. “mainCategoryName”:”Santé u0026 Environnement”,”mainCategoryUrlPath”:”santeenvironnement”,”mainCategoryFullUrlPath”:”santeenvironnement”,”url”:”/story/espace-premiere-image-d-une-etoile-mourant-dans-une-double-explosion-103373970″,”urlSlug”:”espace-premiere-image-d-une-etoile-mourant-dans-une-double-explosion”,”openInNewWindow”:false,”readingTime”:120,”wordCount”:476,”settings”:{“commentRisk”:”high”,”commentingEnabled”:true,”sharingEnabled”:true,”likesEnabled”:true,”renderedInWebView”:false,”publicationDateExposed”:true,”adsEnabled”:true,”allowRobots”:true,”headDisabled”:false},”authors”:[{“type”:”agency”,”name”:”afp”}],”image”:{“id”:”JEMLJKC7B-KK”,”variants”:{“1200px”:{“src”:”https://image.lematin.ch/2025/07/02/8f977964-7f6e-40d5-b77a-62a2c84699c8.jpg?auto=format%2Ccompress%2Cenhanceu0026fit=maxu0026w=1200u0026h=1200u0026rect=0%2C0%2C3000%2C2000u0026s=619daf5b9317d8eaac7ef32d182f8d23″. “avifSrc”:”https://image.lematin.ch/2025/07/02/8f977964-7f6e-40d5-b77a-62a2c84699c8.jpg?auto=format%2Ccompress%2Cenhanceu0026fit=maxu0026w=1200u0026h=1200u0026rect=0%2C0%2C3000%2C2000u0026fm=avifu0026s=eb232877f7a6b24bb5880532f1e7da25″. In addition, “maxWidth”:1200,”maxHeight”:1200,”width”:1200,”height”:800,”aspectRatio”:1.5,”mediaType”:”image/jpeg”,”focusPoint”:{“x”:0.5,”y”:0.5}},”fix1200x675px”:{“src”:”https://image.lematin.ch/2025/07/02/8f977964-7f6e-40d5-b77a-62a2c84699c8.jpg?auto=format%2Ccompress%2Cenhanceu0026fit=cropu0026w=1200u0026h=675u0026rect=0%2C0%2C3000%2C2000u0026crop=facesu0026s=98478e419af19bc85814313372e6e972″. “avifSrc”:”https://image.lematin.ch/2025/07/02/8f977964-7f6e-40d5-b77a-62a2c84699c8.jpg?auto=format%2Ccompress%2Cenhanceu0026fit=cropu0026w=1200u0026h=675u0026rect=0%2C0%2C3000%2C2000u0026crop=facesu0026fm=avifu0026s=815165fc0682d55478ad096d634cc4a1″. Additionally, “maxWidth”:1200,”maxHeight”:675,”width”:1200,”height”:675,”aspectRatio”:1.7777777777777777,”mediaType”:”image/jpeg”,”focusPoint”:{“x”:0.5,”y”:0.5}}}}. “titleHeader”:”Espace”,”title”:”Supernova: première image d’une double explosion stellaire”,”lead”:”Jusque-là uniquement théorique, une supernova a pu être observée, se drapant d’hélium avant supernova: first image double stellar de détonner.”. Furthermore, “kickword”:{},”styles”:{“name”:”Default”},”useEmbedUrl”:false,”titleSet”:false,”leadSet”:false}},”seoTeaser”:{“title”:”Supernova: première image d’une double explosion stellaire”,”lead”:”Des astronomes ont confirmé l’existence d’une supernova «à double détonation», un phénomène jusque-là théorique. L’étoile naine blanche s’est drapé d’hélium avant d’exploser.”. “titleSet”:true,”leadSet”:true},”clientdata”:{“community”:{“shares”:”0″,”comments”:”0″,”contentRatings”:”2″}},”relatedContent”:{“content”:[]},”settings”:{“commentRisk”:”high”,”commentingEnabled”:true,”sharingEnabled”:true,”likesEnabled”:true,”renderedInWebView”:false,”publicationDateExposed”:true,”adsEnabled”:true,”allowRobots”:true,”headDisabled”:false}},”article”:{“titleHeader”:”Espace”,”title”:”Première image d’une étoile mourant dans une double explosion”,”lead”:”Jusque-là uniquement théorique, une supernova a pu être observée, se drapant d’hélium avant de détonner.”,”leadRT”:{“text”:””,”elements”:[]},”elements”:[{“type”:”publishDate”,”publishedTime”:”2025-07-02T14:00:52.630Z”. “isUpdated”:false},{“type”:”title”,”htmlText”:”u003cspanu003eEspaceu003cspan class=”visually-hidden” aria-hidden=”true” role=”presentation”u003e: u003c/spanu003eu003c/spanu003ePremière image d’une étoile mourant dans une double explosion”},{“type”:”lead”,”htmlText”:”Jusque-là uniquement théorique, une supernova a pu être observée, se drapant d’hélium avant de détonner.”}. Moreover, {“type”:”authors”,”authors”:[]},{“type”:”image”,”image”:{“id”:”JEMLJKC7B-KK”,”caption”:{“text”:”Cette image montre le vestige en expansion d’une étoile ayant explosé il y a des centaines d’années lors d’une double détonation. Le calcium est représenté en bleu et est disposé en deux couches concentriques. Ces deux couches indiquent que l’étoile aujourd’hui morte a explosé lors d’une double détonation.”. “elements”:[{“type”:”textBlockArray”,”items”:[{“type”:”htmlTextItem”,”htmlText”:”Cette image montre le vestige en expansion d’une étoile ayant explosé il y a des centaines d’années lors d’une double supernova: first image double stellar détonation. Le calcium est représenté en bleu et est disposé en deux couches concentriques. Ces deux couches indiquent que l’étoile aujourd’hui morte a explosé lors d’une double détonation.”}]}]},”credit”:”ESO/AFP”,”suffix”:”jpeg”,”variants”:{“400px”:{“src”:”https://image.lematin.ch/2025/07/02/8f977964-7f6e-40d5-b77a-62a2c84699c8.jpg?auto=format%2Ccompress%2Cenhanceu0026fit=maxu0026w=400u0026h=400u0026rect=0%2C0%2C3000%2C2000u0026s=25744081c7ae49b80fa6d9733ff5f61f”. “avifSrc”:”https://image.lematin.ch/2025/07/02/8f977964-7f6e-40d5-b77a-62a2c84699c8.jpg?auto=format%2Ccompress%2Cenhanceu0026fit=maxu0026w=400u0026h=400u0026rect=0%2C0%2C3000%2C2000u0026fm=avifu0026s=3e067c08bfeb117ca5033e01a72f7787″. “maxWidth”:400,”maxHeight”:400,”width”:400,”height”:267,”aspectRatio”:1.4981273408239701,”mediaType”:”image/jpeg”,”focusPoint”:{“x”:0.5,”y”:0.5}},”800px”:{“src”:”https://image.lematin.ch/2025/07/02/8f977964-7f6e-40d5-b77a-62a2c84699c8.jpg?auto=format%2Ccompress%2Cenhanceu0026fit=maxu0026w=800u0026h=800u0026rect=0%2C0%2C3000%2C2000u0026s=05e960352ed4a95af44048ca9e00869f”. 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Car l’évènement, qui voit l’astre imploser, est aussi soudain qu’imprévisible.”}]}. {“type”:”ad”,”availableFor”:{“desktop”:true,”app”:true}},{“type”:”textBlockArray”,”items”:[{“type”:”htmlTextItem”,”htmlText”:”D’une masse similaire à celle du Soleil, les naines blanches concentrent leur matière dans un volume beaucoup plus petit. Elles sont réputées terminer leur existence en s’éteignant doucement. pour devenir des naines noires, – théorisées sans jamais avoir été observées –, ou en supernova: first image double stellar explosant en supernova.”}]}. {“type”:”textBlockArray”,”items”:[{“type”:”htmlTextItem”,”htmlText”:”«Les explosions de naines blanches jouent un rôle critique en astronomie», a remarqué dans un communiqué de l’Observatoire européen austral le doctorant Priyam Das, premier auteur de l’étude parue dans “},{“type”:”htmlTextItem”,”htmlText”:”u003ca target=”_blank” href=”https://www.nature.com/articles/s41550-025-02589-5″u003e«Nature»u003c/au003e”},{“type”:”htmlTextItem”,”htmlText”:”. Notamment parce que ces évènements produisent quantité d’éléments. dont du fer, qui serviront de matière première pour former de nouvelles étoiles. Malgré cela «le puzzle de longue date du mécanisme exact déclenchant l’explosion reste irrésolu». selon Priyam Das.”}]}. {“type”:”crosshead”,”htmlText”:”Deuxième modèle confirmé”,”style”:{}},{“type”:”textBlockArray”,”items”:[{“type”:”htmlTextItem”,”htmlText”:”Tous les modèles s’accordent sur un scénario dans lequel la naine blanche accumule de la matière en la dérobant à une étoile jumelle, jusqu’à imploser sous sa propre masse. Mais de récentes études ont pointé vers une deuxième possibilité. dans laquelle la naine blanche se drape dans une couverture d’hélium volée à sa compagne, et qui «peut devenir instable et détonner», selon le communiqué. L’onde de choc de cette déflagration comprimerait alors la naine supernova: first image double stellar blanche, qui exploserait à son tour en supernova.”}]},{“type”:”image”,”image”:{“id”:”MLym9N1DtWne”,”caption”:{“text”:”Cette image d’artiste illustre le reste de supernova SNR 0509-67,5. Cet événement n’a laissé que des traces. clairement visibles, de la double explosion qui a mis fin à l’existence d’une étoile.”,”elements”:[{“type”:”textBlockArray”,”items”:[{“type”:”htmlTextItem”,”htmlText”:”Cette image d’artiste illustre le reste de supernova SNR 0509-67,5. Cet événement n’a laissé que des traces. clairement visibles, de la double explosion qui a mis fin à l’existence d’une étoile.”}]}]},”credit”:”ESO/AFP”,”suffix”:”jpeg”,”variants”:{“400px”:{“src”:”https://image.lematin.ch/2025/07/02/2405f2bd-e635-495f-81e2-2774618564e5.jpg?auto=format%2Ccompress%2Cenhanceu0026fit=maxu0026w=400u0026h=400u0026rect=0%2C0%2C3840%2C2306u0026s=c2991481aa9690384d7fa12f46ff72b7″. “avifSrc”:”https://image.lematin.ch/2025/07/02/2405f2bd-e635-495f-81e2-2774618564e5.jpg?auto=format%2Ccompress%2Cenhanceu0026fit=maxu0026w=400u0026h=400u0026rect=0%2C0%2C3840%2C2306u0026fm=avifu0026s=6a54593feae6f210102e6a37ba758239″. “maxWidth”:400,”maxHeight”:400,”width”:400,”height”:240,”aspectRatio”:1.6666666666666667,”mediaType”:”image/jpeg”,”focusPoint”:{“x”:0.5,”y”:0.5}},”800px”:{“src”:”https://image.lematin.ch/2025/07/02/2405f2bd-e635-495f-81e2-2774618564e5.jpg?auto=format%2Ccompress%2Cenhanceu0026fit=maxu0026w=800u0026h=800u0026rect=0%2C0%2C3840%2C2306u0026s=7e6800e63a165f40a0209fc315f1fdb6″. 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Also, “avifSrc”:”https://image.lematin.ch/2025/07/02/2405f2bd-e635-495f-81e2-2774618564e5.jpg?auto=format%2Ccompress%2Cenhanceu0026fit=maxu0026w=2001u0026h=2000u0026rect=0%2C0%2C3840%2C2306u0026fm=avifu0026s=96b1da496104f128c6eb786e96c0d124″. “maxWidth”:2001,”maxHeight”:2000,”width”:2001,”height”:1202,”aspectRatio”:1.6647254575707155,”mediaType”:”image/jpeg”,”focusPoint”:{“x”:0.5,”y”:0.5}},”small”:{“src”:”https://image.lematin.ch/2025/07/02/2405f2bd-e635-495f-81e2-2774618564e5.jpg?auto=format%2Ccompress%2Cenhanceu0026fit=maxu0026w=400u0026h=400u0026rect=0%2C0%2C3840%2C2306u0026s=c2991481aa9690384d7fa12f46ff72b7″. 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Additionally, “avifSrc”:”https://image.lematin.ch/2025/07/02/2405f2bd-e635-495f-81e2-2774618564e5.jpg?auto=format%2Ccompress%2Cenhanceu0026fit=maxu0026w=1200u0026h=1200u0026rect=0%2C0%2C3840%2C2306u0026fm=avifu0026s=df9aab5dad12f068eea11562f19f01a8″. “maxWidth”:1200,”maxHeight”:1200,”width”:1200,”height”:721,”aspectRatio”:1.6643550624133148,”mediaType”:”image/jpeg”,”focusPoint”:{“x”:0.5,”y”:0.5}}},”maxAspectRatio”:1.68}}. Furthermore, {“type”:”textBlockArray”,”items”:[{“type”:”htmlTextItem”,”htmlText”:”Grâce à l’instrument MUSE installé sur le Très grand télescope de l’Observatoire européen austral (ESO) au Chili, l’équipe d’astronomes a capturé un «instantané photographique» des restes de l’évènement, baptisé SNR 0509, et survenu il y a environ 300 à 330 ans dans le nuage de Magellan, proche de la Voie lactée. 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Supernova: first image double stellar

Further reading: Cdiscount discreetly displays an unexpected price on the Google Pixel 8 Pro smartphone – “We use neurons for calculation and intelligence”: this cerebral organoid, rented 300 €/week, already controls robotic interfaces – Podcast – How does the brain of teenagers work (or not) work? – Rts.ch – Microsoft replaces the emblematic ‘Blue screen of death’ after 40 years – At less than 150 euros, the Samsung Galaxy A16 smartphone becomes the New Star of the Sales.