{"id":20030,"date":"2022-12-15T11:00:00","date_gmt":"2022-12-15T10:00:00","guid":{"rendered":"https:\/\/www.ieec.cat\/an-international-team-of-astronomers-discovers-two-potentially-habitable-exo-earths-orbiting-a-nearby-star\/"},"modified":"2022-12-15T11:00:00","modified_gmt":"2022-12-15T10:00:00","slug":"an-international-team-of-astronomers-discovers-two-potentially-habitable-exo-earths-orbiting-a-nearby-star","status":"publish","type":"post","link":"https:\/\/www.ieec.cat\/en\/an-international-team-of-astronomers-discovers-two-potentially-habitable-exo-earths-orbiting-a-nearby-star\/","title":{"rendered":"An international team of astronomers discovers two potentially habitable exo-earths orbiting a nearby star"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; fullwidth=&#8221;on&#8221; theme_builder_area=&#8221;post_content&#8221; _builder_version=&#8221;4.14.8&#8243; _module_preset=&#8221;default&#8221; height=&#8221;114px&#8221; background_color=&#8221;&#8221; hover_enabled=&#8221;0&#8243; 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_module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<strong>The study is led by researchers from the Instituto de Astrof&iacute;sica de Canarias (IAC) and has the participation of members of the IEEC<\/strong><\/p>\n<p><strong>Both Earth-mass planets orbit the star GJ 1002, a red dwarf, and are excellent candidates for atmospheric characterization<\/strong><\/p>\n<p><span style=\"background-color:transparent; color:#000000\">Two Earth-mass planets orbiting a red dwarf<\/span><span style=\"background-color:transparent; color:#222222\">&mdash;<\/span><span style=\"background-color:transparent; color:#000000\">the star called GJ 1002<\/span><span style=\"background-color:transparent; color:#222222\">&mdash;<\/span><span style=\"background-color:transparent; color:#000000\">, have been found recently by an international team of astronomers. The study is led by researchers from the <a href=\"https:\/\/www.iac.es\/\">Instituto de Astrof&iacute;sica de Canarias<\/a> (IAC) and has the participation of members of the <a href=\"https:\/\/www.ieec.cat\/\">Institute of Space Studies of Catalonia<\/a> <\/span><span style=\"background-color:transparent; color:#222222\">(IEEC&nbsp; &mdash; Institut d&rsquo;Estudis Espacials de Catalunya)<\/span><span style=\"background-color:transparent; color:#000000\">. The article has been accepted for publication in the journal <\/span><em>Astronomy &amp; Astrophysics.<\/em><\/p>\n<p><span style=\"background-color:transparent; color:#000000\">The new planets orbit the nearby star GJ 1002, located less than 16 light years away from the solar system. <\/span><strong>Both have masses like the Earth and are located within the habitable zone of their star<\/strong><span style=\"background-color:transparent; color:#000000\">. As the star is quite cool, the habitable zone of the system is very close to it. The inner planet, GJ 1002 b, takes just 10 days to complete a full orbit. The other one, GJ 1002 c, needs 21 days.<\/span><\/p>\n<p><span style=\"background-color:transparent; color:#000000\">This discovery has only been possible thanks to the collaboration between the <\/span><a href=\"https:\/\/www.eso.org\/public\/spain\/teles-instr\/paranal-observatory\/vlt\/vlt-instr\/espresso\/\" style=\"text-decoration:none;\"><u>ESPRESSO<\/u><\/a><span style=\"background-color:transparent; color:#000000\"> [1] and <\/span><a href=\"https:\/\/www.ieec.cat\/content\/18\/carmenes\/\" style=\"text-decoration:none;\"><u>CARMENES<\/u><\/a><span style=\"background-color:transparent; color:#000000\"> [2] consortia, both devoted to the search of exoplanets. The star GJ 1002 was observed by the CARMENES instrument at the <a href=\"http:\/\/www.caha.es\/\">Calar Alto Observatory<\/a> between 2017 and 2019, and later between 2019 and 2021 by the ESPRESSO instrument at the <a href=\"https:\/\/www.eso.org\/public\/teles-instr\/paranal-observatory\/\">Paranal Observatory<\/a>.<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/i.imgur.com\/CDZiJoK.jpg\" style=\"height:268px; margin-bottom:0px; margin-left:0px; margin-right:0px; margin-top:0px; width:764px\" \/><\/span><br \/>\n<em><span style=\"background-color:transparent; color:#000000\">Caption: The infographic compares the planet positions, scaled to the habitability zone, with those of the Solar System.<\/span><br \/>\n<span style=\"background-color:transparent; color:#000000\">Credits: <\/span> <span style=\"background-color:transparent; color:#000000\">Alejandro Su&aacute;rez Mascare&ntilde;o (with resources from NASA).<\/span><\/em><\/p>\n<p><span style=\"background-color:transparent; color:#000000\">&ldquo;Nature seems determined to prove that Earth-like exoplanets are very common. With these two, we already know about 7 of them in nearby systems&rdquo;, explains Alejandro Su&aacute;rez Mascare&ntilde;o, researcher at the IAC and lead author of the study.<\/span><\/p>\n<p><span style=\"background-color:transparent; color:#000000\">The closeness of the star to our solar system makes the planets around GJ 1002 <strong>excellent candidates for atmospheric characterization<\/strong> by studying their reflected light or thermal emission.<\/p>\n<p>&ldquo;These will be prime targets for future space missions such as <\/span><a href=\"https:\/\/life-space-mission.com\/\" style=\"text-decoration:none;\"><u>LIFE<\/u><\/a><span style=\"background-color:transparent; color:#000000\">, currently in concept phase and with the participation of the IEEC, which will be able to detect key molecules in their atmospheres and study the presence of a biosphere&rdquo;, explains Ignasi Ribas, an IEEC researcher at the <a href=\"https:\/\/www.ice.csic.es\/\">Institute of Space Sciences<\/a> (ICE &#8211; CSIC).&nbsp;<\/span><\/p>\n<p><span style=\"background-color:transparent; color:#000000\">Due to its cool temperature, GJ 1002 is too faint in visible light to study its radial velocity variations with most spectrographs. The design of CARMENES, much redder than most other spectrographs focused on radial velocities, made it possible to study it with the 3.5-m Calar Alto telescope. The combination of ESPRESSO and the collecting power of the 8-m VLT telescopes made it possible to obtain radial velocity measurements with a precision of 30 cm\/s, out of reach for almost any other facility in the world.&nbsp;<\/span><\/p>\n<p><em>Press release prepared in collaboration with the Communication Office of the Instituto de Astrof&iacute;sica de Canarias (IAC).<\/em><span style=\"background-color:#ffffff; color:#000000\">&nbsp;<\/span><\/p>\n<p><strong>Notes<\/strong><\/p>\n<p><span style=\"background-color:#ffffff; color:#000000\">[1]<\/span><span style=\"background-color:#ffffff; color:#1155cc\"> <\/span><a href=\"https:\/\/www.eso.org\/public\/spain\/teles-instr\/paranal-observatory\/vlt\/vlt-instr\/espresso\/\" style=\"text-decoration:none;\"><u>ESPRESSO <\/u><\/a><span style=\"background-color:#ffffff; color:#000000\">(Echelle Spectrograph for Rocky Exoplanet and Stable Spectroscopic Observations) is a third-generation, fibre fed, cross-dispersed, echelle spectrograph mounted on the European Southern Observatory&#39;s Very Large Telescope (VLT). ESPRESSO is being developed by a consortium consisting of the European Southern Observatory (ESO) and seven European scientific institutes.<\/span><\/p>\n<p><span style=\"background-color:#ffffff; color:#000000\">[2] The <\/span><a href=\"https:\/\/www.ieec.cat\/content\/18\/carmenes\/\" style=\"text-decoration:none;\"><u>CARMENES<\/u><\/a><span style=\"background-color:#ffffff; color:#000000\"> (Calar Alto high-Resolution search for M dwarfs with Exo-earths with Near-infrared and optical &Eacute;chelle Spectrographs) instrument is a high-resolution optical and near infrared spectrograph built in collaboration by various Spanish and German research institutions, and it is operated by the <\/span><a href=\"http:\/\/www.caha.es\/\" style=\"text-decoration:none;\"><u>Calar Alto Observatory<\/u><\/a><span style=\"background-color:#ffffff; color:#000000\"> (Spain).<\/span><\/p>\n<p><strong>Main Image<\/strong><\/p>\n<p><span style=\"background-color:transparent; color:#000000\">Caption: Representation of an exoplanet around its red dwarf.<\/span><br \/>\n<span style=\"background-color:transparent; color:#000000\">Credits: Alejandro Su&aacute;rez Mascare&ntilde;o (IAC) and In&eacute;s Bonet Marquez (IAC).<\/span><\/p>\n<p><strong>Links<\/strong><\/p>\n<p><span style=\"background-color:#ffffff; color:#212529\">&#8211; <\/span><a href=\"http:\/\/www.ieec.cat\/\" style=\"text-decoration:none;\"><u>IEEC<\/u><\/a><br \/>\n<span style=\"background-color:#ffffff; color:#000000\">&#8211;<\/span><strong> <\/strong><a href=\"https:\/\/www.iac.es\/\" style=\"text-decoration:none;\"><u>IAC<\/u><\/a><br \/>\n<span style=\"background-color:#ffffff; color:#000000\">&#8211;<\/span><strong> <\/strong><a href=\"https:\/\/carmenes.caha.es\/\" style=\"text-decoration:none;\"><u>CARMENES<\/u><\/a><br \/>\n<span style=\"background-color:#ffffff; color:#000000\">&#8211;<\/span><strong> <\/strong><a href=\"https:\/\/www.eso.org\/public\/spain\/teles-instr\/paranal-observatory\/vlt\/vlt-instr\/espresso\/\" style=\"text-decoration:none;\"><u>ESPRESSO<\/u><\/a><\/p>\n<p><strong>More information<\/strong><\/p>\n<p><span style=\"background-color:transparent; color:#222222\">This research is presented in a paper entitled &ldquo;<\/span><a href=\"https:\/\/doi.org\/10.1051\/0004-6361\/202244991\" style=\"text-decoration:none;\"><u>Two temperate Earth-mass planets orbiting the nearby star GJ 1002<\/u><\/a><span style=\"background-color:transparent; color:#222222\">&rdquo; by A. Su&aacute;rez Mascare&ntilde;o <\/span><em>et al.,<\/em><span style=\"background-color:transparent; color:#222222\"> appeared in the journal <\/span><span style=\"background-color:transparent; color:#000000\">Astronomy &amp; Astrophysics<\/span><span style=\"background-color:transparent; color:#222222\"> on 15 December 2022.<\/span><br \/>\n<span style=\"background-color:transparent; color:#222222\">The Institute of Space Studies of Catalonia (IEEC&nbsp; &mdash; Institut d&rsquo;Estudis Espacials de Catalunya) promotes and coordinates space research and technology development in Catalonia for the benefit of society. IEEC fosters collaborations both locally and worldwide and is an efficient agent of knowledge, innovation and technology transfer. As a result of 25 years of high-quality research, done in collaboration with major international organisations, IEEC ranks among the best international research centres, focusing on areas such as: astrophysics, cosmology, planetary science, and Earth Observation. IEEC&rsquo;s engineering division develops instrumentation for ground- and space-based projects, and has extensive experience in working with private or public organisations from the aerospace and other innovation sectors.<br \/>\n&nbsp;&nbsp;<\/span><br \/>\n<span style=\"background-color:transparent; color:#222222\">IEEC is a private non-profit foundation, governed by a Board of Trustees composed of Generalitat de Catalunya and four other institutions that each have a research unit, which together constitute the core of IEEC R&amp;D activity: the Universitat de Barcelona (UB) with the research unit ICCUB &mdash; Institute of Cosmos Sciences; the Universitat Aut&ograve;noma de Barcelona (UAB) with the research unit CERES &mdash; Center of Space Studies and Research; the Universitat Polit&egrave;cnica de Catalunya &middot; BarcelonaTech (UPC) with the research unit CTE &mdash; Research Group in Space Sciences and Technologies; the Spanish Research Council (CSIC) with the research unit ICE &mdash; Institute of Space Sciences. The IEEC is a CERCA (Centres de Recerca de Catalunya) centre.<\/span><\/p>\n<p><strong>Contacts<\/strong><\/p>\n<p><strong><em>IEEC Communication Office<\/em><br \/>\n<em>Barcelona, Spain<\/em><\/strong><br \/>\n<span style=\"background-color:#ffffff; color:#222222\">E-mail: <\/span><a href=\"mailto:comunicacio@ieec.cat\" style=\"text-decoration:none;\"><u>comunicacio@ieec.cat<\/u><\/a><span style=\"background-color:#ffffff; color:#222222\">&nbsp;<\/span><\/p>\n<p><strong><em>Lead Researcher at IEEC<\/em><br \/>\n<em>Barcelona, Spain<\/em><\/strong><br \/>\n<span style=\"background-color:#ffffff; color:#222222\">Ignasi Ribas<\/span><br \/>\n<span style=\"background-color:transparent; color:#000000\">Institute of Space Studies of Catalonia (IEEC)<\/span><br \/>\n<span style=\"background-color:#ffffff; color:#222222\">Institute of Space Sciences (ICE &#8211; CSIC)<\/span><br \/>\n<span style=\"background-color:#ffffff; color:#222222\">E-mail:<\/span><span style=\"background-color:#ffffff; color:#222222\"> <\/span><a href=\"mailto:ribas@ieec.cat\" style=\"text-decoration:none;\"><u>ribas@ieec.cat<\/u><\/a><span style=\"background-color:#ffffff; color:#000000\">, <\/span><a href=\"mailto:iribas@ice.cat\" style=\"text-decoration:none;\"><u>iribas@ice.cat<\/u><\/a>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The study is led by researchers from the Instituto de Astrof&iacute;sica de Canarias (IAC) and has the participation of members of the IEEC Both Earth-mass planets orbit the star GJ 1002, a red dwarf, and are excellent candidates for atmospheric characterization Two Earth-mass planets orbiting a red dwarf&mdash;the star called GJ 1002&mdash;, have been found [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":20026,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"2880","footnotes":""},"categories":[98,38],"tags":[],"class_list":["post-20030","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science","category-sense-categoria"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - 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