{"id":2154,"date":"2025-02-24T06:30:49","date_gmt":"2025-02-24T04:30:49","guid":{"rendered":"https:\/\/sf2a.eu\/website2023\/?p=2154"},"modified":"2025-02-24T06:30:49","modified_gmt":"2025-02-24T04:30:49","slug":"message-sf2a-no-1126","status":"publish","type":"post","link":"https:\/\/sf2a.eu\/website2023\/message-sf2a-no-1126\/","title":{"rendered":"Message SF2A No 1126"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Message SF2A No 1126 &#8211; 24\/02\/25<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Prix Camille Flammarion de la m\u00e9diation SAF\/SF2A<\/li>\n\n\n\n<li>Semestre 2025B au TCFH &#8211; Appel de temps ouvert<\/li>\n\n\n\n<li>French AtLAST days, May 12-14, 2025, Amphith\u00e9\u00e2tre Pierre-Gilles De Gennes, universit\u00e9 Paris Cit\u00e9 (France)<\/li>\n\n\n\n<li>Journ\u00e9es Ariel France, May 22-23, 2025, LIRA Meudon (France)<\/li>\n\n\n\n<li>EAS2025 SS16: A new picture of galaxy evolution from Cosmic Dawn to Cosmic Noon: after the first years of JWST operation and towards the ELT, June 23rd-27th, Cork (Ireland)<\/li>\n\n\n\n<li>EAS2025 SS31: Numerical models of extreme stellar explosions, June 23rd-27th, Cork (Ireland)<\/li>\n\n\n\n<li>EAS2025 SS38: A Bright Future for Far-Infrared Astrophysics in Europe, June 23rd-27th, Cork (Ireland)<\/li>\n\n\n\n<li>Atelier SF2A S05: Exploring the frontiers of astrophysics with machine learning: New methods and current challenges, July 1, 2025, Toulouse (France)<\/li>\n\n\n\n<li>Atelier SF2A S10: Atmosph\u00e8res plan\u00e9taires : processus physiques, couplages internes et interpr\u00e9tation des observations, July 4, 2025, Toulouse (France)<\/li>\n\n\n\n<li>Atelier SF2A S11: Enseignement et formation, July 2, 2025, Toulouse (France)<\/li>\n\n\n\n<li>Urgent Call from the International Astronomical Community for the Protection of Chile&rsquo;s Astronomical Heritage<\/li>\n\n\n\n<li>P\u00e9tition en soutien \u00e0 la recherche aux USA<\/li>\n\n\n\n<li>Le num\u00e9ro de mars 2025 du magazine de la SAF l\u2019Astronomie est paru<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">1. Prix Camille Flammarion de la m\u00e9diation SAF\/SF2A<\/h3>\n\n\n\n<p>La Soci\u00e9t\u00e9 Astronomique de France (SAF) et la Soci\u00e9t\u00e9 Fran\u00e7aise d\u2019Astronomie et d\u2019Astrophysique (SF2A) se sont associ\u00e9es pour cr\u00e9er en 2022 le Prix Camille Flammarion destin\u00e9 \u00e0 r\u00e9compenser une action de m\u00e9diation scientifique men\u00e9e par un jeune chercheur. Ce prix est ouvert aux doctorant(e)s et aux post-doctorant(e)s en Sciences de l\u2019Univers. La SAF et SF2A lancent le 4\u00e8me appel \u00e0 candidature pour le Prix Camille Flammarion qui sera remis lors de la semaine de l\u2019Astrophysique Fran\u00e7aise qui se tiendra du 1 au 4 juillet 2025 \u00e0 Toulouse.<br>Le prix d\u00e9cern\u00e9 sera mat\u00e9rialis\u00e9 par un ch\u00e8que de 1000\u20ac ; un communiqu\u00e9 de presse sera ensuite diffus\u00e9. En outre, le projet distingu\u00e9 pourra faire l\u2019objet d\u2019une communication lors des journ\u00e9es de la SF2A 2025 et d\u2019une publication dans le magazine l\u2019Astronomie.<br>Le jury compos\u00e9 de membres de la SAF et de la SF2A d\u00e9cidera en mai 2025 de l\u2019attribution du prix.<\/p>\n\n\n\n<p>Quelles sont les conditions de participation ?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Le prix est ouvert aux doctorant(e)s et postdoctorant(e)s francophones en Sciences de l\u2019Univers \u00e0 titre individuel ou en collaboration avec une association ou un laboratoire<\/li>\n\n\n\n<li>Le projet pr\u00e9sent\u00e9 doit \u00eatre en cours (2024 et 2025) ou avoir eu lieu l\u2019an dernier (2023\/2024) et concerne un des domaines des Sciences de l\u2019Univers<\/li>\n\n\n\n<li>Toutes les tailles et tous les formats de projet sont les bienvenus. Les points importants sont le c\u00f4t\u00e9 innovant de votre projet et l\u2019impact de votre initiative sur le public cible<\/li>\n\n\n\n<li>Les candidatures seront soumises en Fran\u00e7ais<\/li>\n<\/ul>\n\n\n\n<p>Pour faire acte de candidature, il est n\u00e9cessaire de :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>R\u00e9pondre au formulaire en ligne avant le 2 mai 12h sur :<br><a href=\"https:\/\/forms.gle\/vDvNKzUcYGZNdmX36\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/forms.gle\/vDvNKzUcYGZNdmX36<\/a><\/li>\n\n\n\n<li>Joindre dans le formulaire en ligne un court CV (1 page en format PDF) de la personne porteuse principale du projet.<\/li>\n<\/ul>\n\n\n\n<p>N&rsquo;h\u00e9sitez pas \u00e0 nous contacter si besoin<\/p>\n\n\n\n<p>Bien cordialement<\/p>\n\n\n\n<p>Sylvain Bouley &#8211; Soci\u00e9t\u00e9 Astronomique de France &#8211; sylvain.bouley@gmail.com<br>Olivia Venot &#8211; Soci\u00e9t\u00e9 Fran\u00e7aise d&rsquo;Astronomie et d\u2019Astrophysique &#8211; presidence@sf2a.eu<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Semestre 2025B au TCFH &#8211; Appel de temps ouvert<\/h3>\n\n\n\n<p>Chers utilisateurs du TCFH,<\/p>\n\n\n\n<p>L&rsquo;appel de temps 2025B du TCFH est maintenant ouvert. La date limite est le 20 mars \u00e0 23h59 UTC. Pour plus d&rsquo;information, veuillez consulter le lien ci-dessous:<\/p>\n\n\n\n<p><a href=\"https:\/\/www.cfht.hawaii.edu\/en\/science\/Proposals\">https:\/\/www.cfht.hawaii.edu\/en\/science\/Proposals<\/a><\/p>\n\n\n\n<p>Veuillez noter que trois nouveaux filtres SITELLE sont maintenant disponibles et qu&rsquo;une section contient des notes techniques importantes qui ont \u00e9t\u00e9 ajout\u00e9es pour que chaque \u00e9quipe puisse v\u00e9rifier la faisabilit\u00e9 technique de leur demande. La pression venant des Grands Programmes est pr\u00e9sent\u00e9e sous la section \u00ab\u00a0Time available\u00a0\u00bb.<\/p>\n\n\n\n<p>Meilleure des chances \u00e0 tous les proposants.<\/p>\n\n\n\n<p>Transmis par Nadine Manset<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. French AtLAST days, May 12-14, 2025, Amphith\u00e9\u00e2tre Pierre-Gilles De Gennes, universit\u00e9 Paris Cit\u00e9 (France)<\/h3>\n\n\n\n<p>AtLAST (Atacama Large Aperture Submillimeter Telescope) is a groundbreaking initiative to develop a 50-meter submillimeter and millimeter-wave telescope on the Chajnantor Plateau in Chile. As part of the ESO \u00ab\u00a0Expanding Horizon\u00a0\u00bb framework, this project is poised to deliver transformational science while pioneering sustainability through renewable energy and environmental considerations.<\/p>\n\n\n\n<p>We are organizing an AtLAST event in Paris on May 12-14 (with hybrid participation available). The ultimate goal is to discuss the role of France in supporting and contributing to this project, including instrumental or software developments and the exploration of its scientific potential. The AtLAST team will present the current status of the project within the European context. Critical questions about environmental and societal aspects, ensuring that AtLAST aligns with these contemporary challenges will also be addressed.<br>We are looking forward to your participation (on-site or on-line) and contribution to this event. Registration is now open on the website: <a href=\"https:\/\/atlast-fr-days.sciencesconf.org\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/atlast-fr-days.sciencesconf.org\/ <\/a><\/p>\n\n\n\n<p>Deadline: April 14th<\/p>\n\n\n\n<p>Transmis par Caroline Bot<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. Journ\u00e9es Ariel France, May 22-23, 2025, LIRA Meudon (France)<\/h3>\n\n\n\n<p>The Ariel France annual conference will be held at LIRA (Meudon) on 22 and 23 May 2025. They are aimed at the entire French exoplanet community, and will include a presentation on the progress of the ESA\/Ariel mission, recent results and proposed contributions from the community.<\/p>\n\n\n\n<p>A review of the progress of the Ariel mission and the AIRS instrument piloted by France will be given during the afternoon of 22 May 2025. As the annual Ariel France days held since 2021, these new days should enable the entire French community to get involved in the mission, which includes in particular an opening to the international \u2018open science\u2019 community. The integration of Ariel into collaborations with other ground or space-based instruments is an important element in preparing for optimum scientific return.<\/p>\n\n\n\n<p>We are therefore inviting researchers and doctoral students to take part in this day, and to propose oral contributions on the various theoretical, observational or programmatic aspects in relation to Ariel. These days will be held in hybrid mode, either face-to-face at LIRA (amphitheatre in building 18 Evry Schatzman) or via a remote connection. Invited presentations will describe the technical and modelling progress of the project. Contributions of 15 minutes (+ 5 min for questions) are invited, before the 31 March deadline.<\/p>\n\n\n\n<p>Participation can be in person (preferably) or remotely, to be indicated at the time of registration.<\/p>\n\n\n\n<p>Times of the Ariel days:<br>Thursday 22 May, 14:00-18:00, with a visit of SimEnOm, followed by a drink (wine, cheese)<br>Friday 23 May, 09:00 &#8211; 13:00, free lunch (possibility of lunch in the Observatoire canteen)<\/p>\n\n\n\n<p>Registration is open via the French Ariel Mission website:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-ariel wp-block-embed-ariel\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"IyTsEUZ9Pl\"><a href=\"https:\/\/www.ariel-mission.fr\/les-journees-ariel\/\">Les journ\u00e9es et ateliers Ariel<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u00ab\u00a0Les journ\u00e9es et ateliers Ariel\u00a0\u00bb &#8212; Ariel\" src=\"https:\/\/www.ariel-mission.fr\/les-journees-ariel\/embed\/#?secret=oyB9T0VR0X#?secret=IyTsEUZ9Pl\" data-secret=\"IyTsEUZ9Pl\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Transmis par Benjamin Charnay<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. EAS2025 SS16: A new picture of galaxy evolution from Cosmic Dawn to Cosmic Noon: after the first years of JWST operation and towards the ELT, June 23rd-27th, Cork (Ireland)<\/h3>\n\n\n\n<p>After nearly two years of operation, the instruments aboard the James Webb Space Telescope (JWST) have already delivered unprecedented images and spectra of our universe. Among the approximately 1000 published papers utilizing JWST data, several findings were unexpected. While these results may have seemed surprising upon their initial announcement, many have since been corroborated in subsequent months, underscoring the imperative for a new understanding of galaxy formation and evolution.<\/p>\n\n\n\n<p>The primary approach to interpreting Webb?s observations involves enhancing our existing model of galaxy formation and evolution, as well as our model on stellar population. Despite being the forefront near-infrared telescope, JWST has limitations in addressing these inquiries due to its restricted capabilities. To explore these questions further, alternative instruments with larger fields of view, comparable (or even greater) sensitivity and resolution are essential.<\/p>\n\n\n\n<p>In July 2023, the construction and development of the ESO Extremely Large Telescope (ELT) reached its midpoint. Anticipated to witness its first light in less than four years, in 2028, the telescope is set to introduce several instruments designed for either the first light or the first generation. These instruments are designed to possess the necessary sensitivity and field-of-view crucial for advancing research in galaxy formation and evolution, and in stellar population studies.<\/p>\n\n\n\n<p>This EAS Special Session will discuss the latest results based on JWST observations and the synergy between JWST and the first-light and first-generation instruments of ELT, focusing on the intricate themes of galaxy formation and evolution. This presents a valuable opportunity to unite the european community around these pivotal subjects and instruments, initiating discussions on the primary science interests of the community on the ELT instruments.<\/p>\n\n\n\n<p><strong>Programme<\/strong><br>The properties of galaxies at the redshift frontier<br>The contribution of AGN and star formation to the reionisation process<br>The first large scale structures and their evolution with Cosmic time<br>The properties of massive stars (such as Wolf-Rayet stars and pop-III stars)<br>The evolution of galaxies properties from Cosmic Dawn to Cosmic Noon<br>Galaxy evolution and stellar populations<\/p>\n\n\n\n<p>Abstract submission [deadline March 3rd] : <a href=\"https:\/\/eas.unige.ch\/EAS_meeting\/abstract_submission.jsp\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/eas.unige.ch\/EAS_meeting\/abstract_submission.jsp<\/a><\/p>\n\n\n\n<p>Transmis par Nicolas Laporte<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">6. EAS2025 SS31: Numerical models of extreme stellar explosions, June 23rd-27th, Cork (Ireland)<\/h3>\n\n\n\n<p>We are glad to announce a Special Session (SS31) titled \u201c<a href=\"https:\/\/eas.unige.ch\/EAS_meeting\/session.jsp?id=SS31\">Numerical models of extreme stellar explosions: bridging the gap between the central engine and the emission region<\/a>\u201d at the upcoming EAS 2025 Annual Meeting.<br>The meeting will be held on June 23-27 in Cork, Ireland, with SS31 scheduled on Wednesday June 25.<\/p>\n\n\n\n<p>This special session aims at bringing together experts in the modeling of all the different phases that characterize extreme stellar explosions, from their initial onset to the emission of the electromagnetic transient. The main goal is to foster discussions and collaborations that will help the community to develop a deeper understanding of the fundamental physical processes at work during these events and trace the path to connect observed GRBs to their stellar progenitors.<\/p>\n\n\n\n<p>We will focus on three major topics related to the modeling of extreme stellar explosions:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The formation and dynamics of the central engine (i.e. extreme core-collapse supernovae, collapsar, binary neutron stars and neutron star-black hole mergers)<\/li>\n\n\n\n<li>The relativistic jet (launch mechanism, propagation through the stellar progenitor or the merger ejecta, interaction with the surrounding medium)<\/li>\n\n\n\n<li>The multi-wavelength electromagnetic and multi-messenger emission (including energy dissipation mechanisms and particle acceleration processes, GW, and neutrinos)<\/li>\n<\/ul>\n\n\n\n<p>If you are interested in participating, you are kindly invited to submit an abstract by March 3.<br>We look forward to seeing you in Cork!<\/p>\n\n\n\n<p>Contact: <a href=\"mailto:matteo.bugli@iap.fr\">matteo.bugli@iap.fr<\/a><\/p>\n\n\n\n<p>Transmis par Matteo Bugli<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">7. EAS2025 SS38: A Bright Future for Far-Infrared Astrophysics in Europe, June 23rd-27th, Cork (Ireland)<\/h3>\n\n\n\n<p>The far-infrared domain is key to study the cold obscured Universe at all scales from protoplanetary disks, to star formation and to galaxy evolution. Without a far-infrared facility, we are blind to half of the luminous content of the Universe. Far-IR observations are essential to understanding the origin of planets, stars, and galaxies.<\/p>\n\n\n\n<p>Following the recommendations of the American decadal report, NASA issued a call for a far-infrared and\/or X-ray probe and in October 2024 selected PRIMA to represent the Far-IR community. With a final selection in mid-2026, EAS2025 is timely to gather the whole European community behind the PRIMA probe.<\/p>\n\n\n\n<p>PRIMA is a cryogenically-cooled, Far-IR observatory concept for the community in the 2030 decade, including both a sensitive wideband spectrometer FIRESS (24 to 235 microns with R~100 and a high-resolution mode), and a multi-band spectrophotometric imager \/ polarimeter PRIMAger. Both instruments use detectors limited by the natural background. More information on the probe is available here: <a href=\"https:\/\/prima.ipac.caltech.edu\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/prima.ipac.caltech.edu\/<\/a><\/p>\n\n\n\n<p>The aim of this special session is to make a big step forward within the European community, and discuss the science opportunities afforded through the &gt;70% of guest observing time that the PRIMA will propose.<\/p>\n\n\n\n<p>We invite researchers to propose and present their views and ideas on the key open questions that require Far-IR observations and how PRIMA would help answering them. We are also welcoming contributions showing the synergy of PRIMA with current or future facilities. This will be an opportunity to directly interact and discuss with the PRIMA team. Furthermore, this session will end with a discussion on future Far-IR concepts, including interferometers, heterodyne telescopes, and balloon-based observatories.<\/p>\n\n\n\n<p>Asbtract submission deadline: March 3rd (!)<\/p>\n\n\n\n<p>Information: <a href=\"https:\/\/eas.unige.ch\/EAS_meeting\/session.jsp?id=SS38\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/eas.unige.ch\/EAS_meeting\/session.jsp?id=SS38<\/a><\/p>\n\n\n\n<p>Transmis par Laure Ciesla<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">8. Atelier SF2A S05: Exploring the frontiers of astrophysics with machine learning: New methods and current challenges, July 1, 2025, Toulouse (France)<\/h3>\n\n\n\n<p>As part of the Journ\u00e9es de la SF2A 2025, we are organizing a workshop called \u201cExploring the frontiers of astrophysics with machine learning: New methods and current challenges\u201d on Tuesday July 1st in Toulouse.<\/p>\n\n\n\n<p>This session aims to bring together members of the astrophysical ML community, as well as those who are curious about the topic, to exchange on the developed methods and their applications for scientific research. We propose a workshop divided into two parts, the first one will focus on presentations covering ML applications in simulations and data analysis. The second part (~1 hour) will be a round-table to address the challenges that are specific to ML approaches, such as model interpretability, data bias, and the integration of ML with traditional methods. This is an occasion to discuss the strengths, limitations, and potential of current methods in solving astrophysical questions, while also identifying the community\u2019s needs.<\/p>\n\n\n\n<p>More information on the workshop at : <a href=\"https:\/\/journees.sf2a.eu\/ateliers\/s05\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/journees.sf2a.eu\/ateliers\/s05\/<\/a><\/p>\n\n\n\n<p>Registration and submission of abstracts are made on the website of the Journ\u00e9es de la SF2A (<a href=\"https:\/\/journees.sf2a.eu\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/journees.sf2a.eu\/<\/a>). Abstracts should be received by April 25.<\/p>\n\n\n\n<p>Sent by Nina Kessler on behalf of the SOC<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">9. Atelier SF2A S10: Atmosph\u00e8res plan\u00e9taires : processus physiques, couplages internes et interpr\u00e9tation des observations, July 4, 2025, Toulouse (France)<\/h3>\n\n\n\n<p>The SF2A week will be held from July 1 to 4, 2025 in Toulouse.<\/p>\n\n\n\n<p>You can already submit an abstract for session S10, Planetary atmospheres: physical processes, internal couplings and interpretation of observations, on the SF2A website (https:\/\/journees.sf2a.eu\/), deadline April 25.<\/p>\n\n\n\n<p>Do not hesitate to spread the information.<\/p>\n\n\n\n<p>Link to the conference website: <a href=\"https:\/\/journees.sf2a.eu\/ateliers\/s10\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/journees.sf2a.eu\/ateliers\/s10\/<\/a><br><\/p>\n\n\n\n<p>Overview: Understanding the diversity of planetary atmospheres requires complex models integrating photochemistry, atmospheric dynamics and interactions with the planetary interior and the star. This session aims to strengthen the synergies between climate modeling, internal planetary structure modeling and observation.<\/p>\n\n\n\n<p>Transmis par Guillaume Chaverot<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">10. Atelier SF2A S11: Enseignement et formation, July 2, 2025, Toulouse (France)<\/h3>\n\n\n\n<p>La SF2A, en partenariat avec l\u2019\u00e9quipe de coordonnateurs nationaux du Bureau de l\u2019Astronomie pour l\u2019Education (NAEC), organise un atelier qui sera ax\u00e9 sur 2 th\u00e8mes :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>l\u2019astronomie pour les personnes en situation de handicap (sensoriel, moteur, psychique) ou d\u2019isolement (h\u00f4pital, prison, etc.) L\u2019un des objectifs de cet atelier est de recenser les m\u00e9thodes \/ outils d\u00e9velopp\u00e9s pour ces actions et de constituer une base de donn\u00e9es de ressources pouvant \u00eatre utilis\u00e9es par celles et ceux qui veulent s\u2019investir mais se sentent d\u00e9munis face aux \u00e9ventuelles difficult\u00e9s.<\/li>\n\n\n\n<li>la sensibilisation \u00e0 la pollution lumineuse et ses enjeux culturels L\u2019accent sera mis sur les impacts de la pollution lumineuse (\u00e9clairage urbain, constellations de satellites, etc.) en astronomie, professionnelle et amateur.<\/li>\n<\/ul>\n\n\n\n<p>Vos propositions de contribution (orale, poster ou simplement fiche de renseignements sur une action men\u00e9e) sont \u00e0 renseigner avant le 20 mai sur le site web des journ\u00e9es SF2A (copie \u00e0 <a href=\"mailto:eric.josselin@umontpellier.fr\">eric.josselin@umontpellier.fr<\/a>).<br>Les pr\u00e9sentations seront n\u00e9cessairement courtes, et les pr\u00e9sentations en pr\u00e9sentiel seront privil\u00e9gi\u00e9es.<\/p>\n\n\n\n<p>Transmis par Eric Josselin<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">11. Urgent Call from the International Astronomical Community for the Protection of Chile&rsquo;s Astronomical Heritage<\/h3>\n\n\n\n<p>A google form collecting signatures from scientists from the physical and astronomical sciences to support the letter Urgent Call from the International Astronomical Community for the Protection of Chile&rsquo;s Astronomical Heritage is available online here:<\/p>\n\n\n\n<p><a href=\"https:\/\/docs.google.com\/forms\/d\/e\/1FAIpQLSfcqFFYvpXHMEdCts4ICq65C3K9NxwGF1MeMj27c5DCSCLaVQ\/viewform\">https:\/\/docs.google.com\/forms\/d\/e\/1FAIpQLSfcqFFYvpXHMEdCts4ICq65C3K9NxwGF1MeMj27c5DCSCLaVQ\/viewform<\/a><\/p>\n\n\n\n<p>Transmis par Boud Roukema<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">12. P\u00e9tition en soutien \u00e0 la recherche aux USA<\/h3>\n\n\n\n<p>Une p\u00e9tition en soutien \u00e0 la recherche aux Etats-Unis lanc\u00e9e par RogueESR est disponible \u00e0 l\u2019adresse suivante :<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-rogueesr wp-block-embed-rogueesr\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"G8YxDQq4Cr\"><a href=\"https:\/\/rogueesr.fr\/in-solidarity\/\">In solidarity<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u00ab\u00a0In solidarity\u00a0\u00bb &#8212; RogueESR\" src=\"https:\/\/rogueesr.fr\/in-solidarity\/embed\/#?secret=r42GF1qxrV#?secret=G8YxDQq4Cr\" data-secret=\"G8YxDQq4Cr\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Transmis par Isabelle Gallagher<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">13. Le num\u00e9ro de mars 2025 du magazine de la SAF l\u2019Astronomie est paru<\/h3>\n\n\n\n<p>Le num\u00e9ro de mars 2025 (n\u00b0191) du magazine de la SAF l\u2019Astronomie est paru.<br>Dans les Actualit\u00e9s, J.Lequeux (OP) r\u00e9v\u00e8le que, gr\u00e2ce \u00e0 un programme de d\u00e9tection de microlentilles, une exoplan\u00e8te a \u00e9t\u00e9 d\u00e9tect\u00e9e autour d\u2019une \u00e9toile \u00e0 tr\u00e8s grande vitesse. S. Collin-Zahn (OP) d\u00e9voile la pr\u00e9sence de galaxies spirales dans l\u2019Univers tr\u00e8s lointain et montre que notre galaxie est atypique. F. Deschamps (IESA, Taipei, Taiwan) pr\u00e9sente une exoplan\u00e8te tr\u00e8s jeune. F. Mottez (OP) signale un ast\u00e9ro\u00efde g\u00e9ocroiseur 2024 YR4, \u00e0 surveiller. Dans l\u2019\u00e9vocation du centenaire de la disparition du fondateur de la SAF, F. Combes (OP, Acad\u00e9mie des Sciences) pr\u00e9sente le livre de C. Flammarion \u00ab Merveilles C\u00e9lestes \u2013 Lectures du Soir \u00bb publi\u00e9 en1865. Dans la rubrique Spatial, J. Borg (IAS) et O. de Goursac (SAF) continuent \u00e0 suivre le cheminement sur Mars du robot Perseverance. Dans le Zoom, F. Deschamps explique comment on a mesur\u00e9 l\u2019\u00e2ge du Syst\u00e8me solaire. Dans La question du mois M.-C. Paskoff (SAF) explique \u00ab pourquoi certains astres sont sph\u00e9riques et d\u2019autres non \u00bb. D. Briot et R. Courtin (OP) pr\u00e9sentent leurs conf\u00e9rences en prison.<br>Dans O&amp;T, L. Boissel (SAF) pr\u00e9sente une m\u00e9thode novatrice, LUNAE-Volc, permettant de d\u00e9terminer la nature et la datation des \u00e9ruptions volcaniques. A. Salez (SAF) pr\u00e9sente l\u2019\u00e9clipse de Soleil du 29 mars 2025. Dans la rubrique Observer le ciel G. Sautot (Science et culture en Picardie) invite \u00e0 observer la galaxie NGC 3190 et E. Evrard (SAF) la lumi\u00e8re zodiacale. M. Khatchadourian (SAF) pr\u00e9sente la lunette Askar SQA 85.<br>Pour vous informer sur le num\u00e9ro en cours et les num\u00e9ros pr\u00e9c\u00e9dents, vous abonner, ou abonner votre laboratoire, voir <a href=\"https:\/\/lastronomie.fr\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/lastronomie.fr<\/a>.<\/p>\n\n\n\n<p>Transmis par Nicole Mein<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>Pour faire passer vos messages, envoyez un mail au secr\u00e9tariat SF2A (<a href=\"mailto:secretariat@sf2a.eu\">secretariat@sf2a.eu<\/a>) avant le vendredi 18h pour une diffusion le lundi apr\u00e8s-midi suivant.<\/p>\n","protected":false},"excerpt":{"rendered":"<h4>Message SF2A No 1126 &#8211; 24\/02\/25<\/h4>\n<p>\n1. Prix Camille Flammarion de la m\u00e9diation SAF\/SF2A<br \/>\n2. Semestre 2025B au TCFH &#8211; Appel de temps ouvert<br \/>\n3. French AtLAST days, May 12-14, 2025, Amphith\u00e9\u00e2tre Pierre-Gilles De Gennes, universit\u00e9 Paris Cit\u00e9 (France)<br \/>\n4. Journ\u00e9es Ariel France, May 22-23, 2025, LIRA Meudon (France)<br \/>\n5. EAS2025 SS16: A new picture of galaxy evolution from Cosmic Dawn to Cosmic Noon: after the first years of JWST operation and towards the ELT, June 23rd-27th, Cork (Ireland)<br \/>\n6. EAS2025 SS31: Numerical models of extreme stellar explosions, June 23rd-27th, Cork (Ireland)<br \/>\n7. EAS2025 SS38: A Bright Future for Far-Infrared Astrophysics in Europe, June 23rd-27th, Cork (Ireland)<br \/>\n8. Atelier SF2A S05: Exploring the frontiers of astrophysics with machine learning: New methods and current challenges, July 1, 2025, Toulouse (France)<br \/>\n9. Atelier SF2A S10: Atmosph\u00e8res plan\u00e9taires : processus physiques, couplages internes et interpr\u00e9tation des observations, July 4, 2025, Toulouse (France)<br \/>\n10. Atelier SF2A S11: Enseignement et formation, July 2, 2025, Toulouse (France)<br \/>\n11. Urgent Call from the International Astronomical Community for the Protection of Chile&rsquo;s Astronomical Heritage<br \/>\n12. P\u00e9tition en soutien \u00e0 la recherche aux USA<br \/>\n13. Le num\u00e9ro de mars 2025 du magazine de la SAF l\u2019Astronomie est paru<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"saved_in_kubio":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2154","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/sf2a.eu\/website2023\/wp-json\/wp\/v2\/posts\/2154","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sf2a.eu\/website2023\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sf2a.eu\/website2023\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sf2a.eu\/website2023\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sf2a.eu\/website2023\/wp-json\/wp\/v2\/comments?post=2154"}],"version-history":[{"count":1,"href":"https:\/\/sf2a.eu\/website2023\/wp-json\/wp\/v2\/posts\/2154\/revisions"}],"predecessor-version":[{"id":2155,"href":"https:\/\/sf2a.eu\/website2023\/wp-json\/wp\/v2\/posts\/2154\/revisions\/2155"}],"wp:attachment":[{"href":"https:\/\/sf2a.eu\/website2023\/wp-json\/wp\/v2\/media?parent=2154"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sf2a.eu\/website2023\/wp-json\/wp\/v2\/categories?post=2154"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sf2a.eu\/website2023\/wp-json\/wp\/v2\/tags?post=2154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}