{"id":297,"date":"2021-05-12T11:43:50","date_gmt":"2021-05-12T09:43:50","guid":{"rendered":"https:\/\/graphonautedelespace.fr\/?post_type=project&p=297"},"modified":"2021-07-31T12:01:06","modified_gmt":"2021-07-31T10:01:06","slug":"episode-5-atmosphere-le-temps-du-climax","status":"publish","type":"project","link":"https:\/\/graphonautedelespace.fr\/?project=episode-5-atmosphere-le-temps-du-climax","title":{"rendered":"EPISODE 5 : Atmosph\u00e8re, le temps du climax"},"content":{"rendered":"

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Episode 5 : Atmosph\u00e8re, le temps du climax<\/h1>\n
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La nouvelle \u00e9tape pour comprendre l\u2019habitabilit\u00e9 des exoplan\u00e8tes reste un champ de recherche en construction : l\u2019histoire des atmosph\u00e8res.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

[\/et_pb_text][et_pb_image src=”https:\/\/web.archive.org\/web\/20181213200636im_\/http:\/\/scenario-terre.space\/wp-content\/uploads\/2018\/01\/E4-WP-1.jpg” title_text=”ilo1-VA” show_in_lightbox=”on” _builder_version=”4.8.2″ _module_preset=”default” width=”50%”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.8.2″ _module_preset=”default”][et_pb_column type=”4_4″ _builder_version=”4.8.2″ _module_preset=”default”][et_pb_video src=”https:\/\/vimeo.com\/238414381″ _builder_version=”4.8.2″ _module_preset=”default”][\/et_pb_video][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.8.2″ _module_preset=”default” custom_margin=”32px||||false|false”][et_pb_column type=”4_4″ _builder_version=”4.8.2″ _module_preset=”default”][et_pb_text _builder_version=”4.8.2″ _module_preset=”default” text_font=”Nasalization||||||||” text_text_color=”#FFFFFF” text_font_size=”30px” header_2_font=”Nasalization||||||||” header_2_text_color=”#FFFFFF” text_orientation=”center”]<\/p>\n

L’\u00e9pisode en d\u00e9tail<\/h2>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.8.2″ _module_preset=”default”][et_pb_column type=”1_2″ _builder_version=”4.8.2″ _module_preset=”default”][et_pb_video src=”https:\/\/youtu.be\/sK7P7Ag5Rp0″ _builder_version=”4.8.2″ _module_preset=”default”][\/et_pb_video][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.8.2″ _module_preset=”default”][et_pb_text _builder_version=”4.8.2″ _dynamic_attributes=”link_option_url” _module_preset=”default” link_option_url=”@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wb3N0Iiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjYzOCJ9fQ==@”]<\/p>\n

L\u2019eau liquide, Graal des chasseur d\u2019exoplan\u00e8tes<\/span><\/h3>\n


L\u2019eau liquide, Graal des chasseurs d\u2019exoplan\u00e8tes, est la premi\u00e8re hypoth\u00e8se pos\u00e9e pour envisager le d\u00e9veloppement de la vie, ici comme ailleurs. Que pouvons nous dire des quelques milliers d\u2019exoplan\u00e8tes d\u00e9couvertes \u00e0 ce jour\u00a0? Une fraction d\u2019entre elles se situe dans\u00a0la zone habitable de leur \u00e9toile<\/span><\/a>. Concr\u00e8tement, il s\u2019agit de\u00a0l\u2019intervalle de distance \u00e0 l\u2019\u00e9toile h\u00f4te o\u00f9 th\u00e9oriquement une plan\u00e8te recevrait une quantit\u00e9 suffisante d\u2019\u00e9nergie\u00a0pour que de l\u2019eau sous forme liquide puisse persister \u00e0 sa surface. Mais cette d\u00e9finition reste simpliste. Les conditions de maintien de l\u2019eau liquide sont fortement li\u00e9es \u00e0 l\u2019\u00e9volution de l\u2019atmosph\u00e8re, cette couche de gaz qui enveloppe les astres et certaines plan\u00e8tes. Une atmosph\u00e8re est donc essentielle !<\/span><\/p>\n

Lire la suite<\/span><\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_3,1_3,1_3″ _builder_version=”4.8.2″ _module_preset=”default”][et_pb_column type=”1_3″ _builder_version=”4.8.2″ _module_preset=”default”][et_pb_video src=”https:\/\/vimeo.com\/238545489″ _builder_version=”4.8.2″ _module_preset=”default”][\/et_pb_video][et_pb_text _builder_version=”4.8.2″ _module_preset=”default” text_text_color=”#FFFFFF”]<\/p>\n

Pourquoi mod\u00e9liser les atmosph\u00e8res des exoplan\u00e8tes ?<\/span><\/span><\/a><\/strong><\/p>\n

Une interview de l’astrophysicien Pascal Tremblin<\/p>\n

[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.8.2″ _module_preset=”default”][et_pb_image src=”https:\/\/scenarioterre.files.wordpress.com\/2017\/10\/ssc2017-01b_inline.jpg?w=589&h=589&crop=1″ title_text=”arbres-etoiles” url=”@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wb3N0Iiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjUxOSJ9fQ==@” _builder_version=”4.8.2″ _dynamic_attributes=”url” _module_preset=”default”][\/et_pb_image][et_pb_text _builder_version=”4.8.2″ _dynamic_attributes=”link_option_url” _module_preset=”default” text_text_color=”#FFFFFF” link_option_url=”@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wb3N0Iiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjUxOSJ9fQ==@”]<\/p>\n

La m\u00e9canique des atmosph\u00e8res<\/strong><\/p>\n

La r\u00e9volution des exoplan\u00e8tes, depuis leur d\u00e9couverte en 1995, a connu ses rebondissements. Face \u00e0 la diversit\u00e9 des syst\u00e8mes rencontr\u00e9s, notre propre syst\u00e8me solaire nous appara\u00eet d\u00e9sormais comme un cas sp\u00e9cifique. Pourtant il est aujourd\u2019hui possible de conclure que la plupart des \u00e9toiles sont entour\u00e9es de plan\u00e8tes rocheuses et qu\u2019elles re\u00e7oivent potentiellement suffisamment d\u2019irradiation pour garder de l\u2019eau liquide en surface. Il faut d\u00e9sormais regarder de plus pr\u00e8s. C\u2019est pourquoi les nouvelles missions spatiales s\u2019attaquant \u00e0 l\u2019\u00e9tude des exoplan\u00e8tes ne s\u2019arr\u00eatent plus \u00e0 leur simple d\u00e9tection. L\u2019\u00e9tape d\u00e9cisive dans la qu\u00eate des mondes habitables se dessine dans la caract\u00e9risation des atmosph\u00e8res. Observateurs et mod\u00e9lisateurs travaillent de concert pour comprendre les processus physiques qui r\u00e9gissent les atmosph\u00e8res et pour reconstituer l\u2019histoire de leurs climats.<\/p>\n

Lire la suite<\/span><\/p>\n

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Atmosph\u00e8re, la part du biologique<\/strong><\/p>\n

Une \u00e9pop\u00e9e scientifique racont\u00e9e par le climatologue Gilles Ramstein<\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”3.25″][et_pb_column type=”4_4″ _builder_version=”3.25″ custom_padding=”|||” custom_padding__hover=”|||”][et_pb_button button_text=”Envoyez votre histoire !” button_alignment=”center” _builder_version=”4.8.2″ custom_button=”on” button_text_size=”13px” button_text_color=”#212135″ button_bg_color=”#FFFFFF” button_border_width=”10px” button_border_color=”#FFFFFF” button_border_radius=”0px” button_letter_spacing=”2px” button_font=”Trebuchet|700||on|||||” background_layout=”dark” hover_enabled=”0″ box_shadow_style=”preset3″ box_shadow_color=”#FFFFFF” button_letter_spacing_hover=”2px” locked=”off” button_text_size__hover_enabled=”off” button_one_text_size__hover_enabled=”off” button_two_text_size__hover_enabled=”off” button_text_color__hover_enabled=”off” button_one_text_color__hover_enabled=”off” button_two_text_color__hover_enabled=”off” button_border_width__hover_enabled=”off” button_one_border_width__hover_enabled=”off” button_two_border_width__hover_enabled=”off” button_border_color__hover_enabled=”off” button_one_border_color__hover_enabled=”off” button_two_border_color__hover_enabled=”off” button_border_radius__hover_enabled=”off” button_one_border_radius__hover_enabled=”off” button_two_border_radius__hover_enabled=”off” button_letter_spacing__hover_enabled=”on” button_letter_spacing__hover=”2px” button_one_letter_spacing__hover_enabled=”off” button_two_letter_spacing__hover_enabled=”off” button_bg_color__hover_enabled=”off” button_one_bg_color__hover_enabled=”off” button_two_bg_color__hover_enabled=”off” button_url=”https:\/\/graphonautedelespace.fr\/?page_id=566″ sticky_enabled=”0″][\/et_pb_button][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"

[et_pb_section fb_built=”1″ fullwidth=”on” admin_label=”Hero Section” _builder_version=”4.8.2″ background_color=”#101535″ background_image=”https:\/\/graphonautedelespace.fr\/wp-content\/uploads\/2021\/02\/FONT_TEST.png” parallax=”on” custom_margin=”0px||0px||false|false” custom_padding=”|||”][et_pb_fullwidth_image src=”https:\/\/web.archive.org\/web\/20181213194024im_\/http:\/\/scenario-terre.space\/wp-content\/uploads\/2018\/01\/banniere-S4-fb-1.png” title_text=”bannie\u0300re-S0-fbVF” _builder_version=”4.8.2″ _module_preset=”default”][\/et_pb_fullwidth_image][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.8.2″ background_color=”#1f1e2e” background_enable_image=”off” custom_margin=”|||” custom_padding=”|||”][et_pb_row admin_label=”Ligne” _builder_version=”4.8.2″ _module_preset=”default”][et_pb_column type=”4_4″ _builder_version=”4.8.2″ _module_preset=”default”][et_pb_text _builder_version=”4.8.2″ _module_preset=”default” text_text_color=”#FFFFFF” header_font=”Nasalization||||||||” header_text_align=”center” header_text_color=”#ffffff” text_orientation=”center”] Episode 5 : Atmosph\u00e8re, le temps du climax La nouvelle \u00e9tape pour comprendre l\u2019habitabilit\u00e9 des exoplan\u00e8tes reste un champ de recherche […]<\/p>\n","protected":false},"author":1,"featured_media":298,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":""},"project_category":[],"project_tag":[],"_links":{"self":[{"href":"https:\/\/graphonautedelespace.fr\/index.php?rest_route=\/wp\/v2\/project\/297"}],"collection":[{"href":"https:\/\/graphonautedelespace.fr\/index.php?rest_route=\/wp\/v2\/project"}],"about":[{"href":"https:\/\/graphonautedelespace.fr\/index.php?rest_route=\/wp\/v2\/types\/project"}],"author":[{"embeddable":true,"href":"https:\/\/graphonautedelespace.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/graphonautedelespace.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=297"}],"version-history":[{"count":7,"href":"https:\/\/graphonautedelespace.fr\/index.php?rest_route=\/wp\/v2\/project\/297\/revisions"}],"predecessor-version":[{"id":873,"href":"https:\/\/graphonautedelespace.fr\/index.php?rest_route=\/wp\/v2\/project\/297\/revisions\/873"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/graphonautedelespace.fr\/index.php?rest_route=\/wp\/v2\/media\/298"}],"wp:attachment":[{"href":"https:\/\/graphonautedelespace.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=297"}],"wp:term":[{"taxonomy":"project_category","embeddable":true,"href":"https:\/\/graphonautedelespace.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fproject_category&post=297"},{"taxonomy":"project_tag","embeddable":true,"href":"https:\/\/graphonautedelespace.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fproject_tag&post=297"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}