/channels/fr/news_feeds/all/term/astronomes/rss fr /channels/fr/channels/news/une-etonnante-exoplanete-barbe-papa-327777 <div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>La masse du cĹ“ur solide de l'exoplanète gĂ©ante<a href="https://fr.wikipedia.org/wiki/WASP-107_b"> </a>WASP-107b est nettement infĂ©rieure Ă  ce qu'on pensait nĂ©cessaire pour constituer l’épaisse enveloppe de gaz entourant des planètes gĂ©antes comme Jupiter et Saturne, a constatĂ© une Ă©quipe d'astronomes canadiens dont la professeure Eve Lee de l'UniversitĂ© Ă山ǿĽé.</p></div></div></div><div class="field field-name-field-primary-image field-type-image field-label-hidden"><div class="field-items"><div class="field-item even"><img class="no-float" src="/channels/files/channels/styles/wysiwyg_medium/public/channels/image/exoplanet_wasp-107b.jpg?itok=BJinKvPT" width="160" height="103" alt="" /></div></div></div><div class="field field-name-field-published-date field-type-datestamp field-label-hidden"><div class="field-items"><div class="field-item even"><div class="custom-multi-date"><div class="multi-date first"><span class="label">PubliĂ©: </span><span class="day">18 </span><span class="month">January </span><span class="year">2021</span></div></div></div></div></div> Mon, 18 Jan 2021 16:14:05 +0000 webfull 166982 at /channels /channels/fr/channels/news/une-succession-de-sursauts-radio-rapides-venue-dun-environnement-extreme-283756 <div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>De nouvelles dĂ©tections d’ondes radio provenant d’une succession de sursauts radio rapides ont mis au jour un champ magnĂ©tique d’une puissance exceptionnelle dans l’environnement de la source, indiquant ainsi qu’elle se trouve Ă  proximitĂ© d’un trou noir massif ou dans une nĂ©buleuse d’une puissance inouĂŻe.</p></div></div></div><div class="field field-name-field-primary-image field-type-image field-label-hidden"><div class="field-items"><div class="field-item even"><img class="no-float" src="/channels/files/channels/styles/wysiwyg_medium/public/channels/image/arecibo_high_frbs_no_spiral_lo_res.jpg?itok=4BPp1OUu" width="160" height="229" /></div></div></div><div class="field field-name-field-published-date field-type-datestamp field-label-hidden"><div class="field-items"><div class="field-item even"><div class="custom-multi-date"><div class="multi-date first"><span class="label">PubliĂ©: </span><span class="day">10 </span><span class="month">January </span><span class="year">2018</span></div></div></div></div></div> Wed, 10 Jan 2018 18:17:14 +0000 webfull 133979 at /channels /channels/fr/news/mysterieux-sursauts-radio-d%E2%80%99origine-cosmique-la-source-se-precise-264901 <div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>Pour la première fois, des astronomes ont repĂ©rĂ© la galaxie hĂ´te d’un sursaut radio rapide (SRR). Les scientifiques disposent ainsi d’un Ă©lĂ©ment de plus pour dĂ©terminer la cause de ces ondes radioĂ©lectriques puissantes, mais fugaces. Ces impulsions de quelques millisecondes seulement intriguent les astrophysiciens depuis leur dĂ©couverte, il y a une dizaine d’annĂ©es.</p></div></div></div><div class="field field-name-field-primary-image field-type-image field-label-hidden"><div class="field-items"><div class="field-item even"><img class="no-float" src="/channels/files/channels/styles/wysiwyg_medium/public/channels/image/frb_inset_gemini.jpg?itok=eW1UPZCa" width="160" height="142" /></div></div></div><div class="field field-name-field-published-date field-type-datestamp field-label-hidden"><div class="field-items"><div class="field-item even"><div class="custom-multi-date"><div class="multi-date first"><span class="label">PubliĂ©: </span><span class="day">3 </span><span class="month">January </span><span class="year">2017</span></div></div></div></div></div> Wed, 04 Jan 2017 18:01:45 +0000 webfull 123868 at /channels