{"id":17042,"date":"2019-11-19T08:25:57","date_gmt":"2019-11-19T08:25:57","guid":{"rendered":"https:\/\/www.revoscience.com\/en\/?p=17042"},"modified":"2020-06-09T12:39:30","modified_gmt":"2020-06-09T12:39:30","slug":"unidentified-mid-infrared-emission-band-detected-by-subaru-telescope","status":"publish","type":"post","link":"https:\/\/www.revoscience.com\/en\/unidentified-mid-infrared-emission-band-detected-by-subaru-telescope\/","title":{"rendered":"Unidentified Mid-infrared Emission Band detected by Sabaru Telescope"},"content":{"rendered":"\n

RevoScience News<\/a><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

By using Sabaru Telescope<\/a>, astronomers have detected an unidentified infrared emission band from comet 21P\/G-Z.<\/a> <\/p>\n\n\n\n

21P\/G-Z is s a\u00a0periodic comet<\/a>\u00a0in the Solar System, called as 21P \/Giacobini-Zinner, where thermal\nemissions from silicate and carbon grains.<\/p>\n\n\n\n

In 1920, \u00a0Michel Giacobin<\/a> observed the comet in the\u00a0constellation<\/a>\u00a0of\u00a0Aquarius<\/a>. It is 1.04 Au<\/a> far from the Sun near its perihelion. <\/p>\n\n\n\n

Along with, researcher publishes their results on November 18, 2019 in Icarus intitle “Unidentified Infrared Emission Features in Mid-infrared Spectrum of Comet 21P\/Giacobini-Zinner<\/a>“, Ootsubo et al.). <\/p>\n\n\n\n

Due to Cooled\nMid-Infrared Camera and Spectrometer (COMICS) in the Subaru Telescope, Researcher\nfinds unidentified infrared emission band. <\/p>\n\n\n\n

These unidentified\ninfrared emissions are likely due to complex organic molecules, both aliphatic\nand aromatic hydrocarbons, contaminated by N- or O-atoms. <\/p>\n\n\n\n

Considering the properties of the dust and organic molecules, comet 21P\/G-Z might have originated from the circumplanetary disk <\/a>of a giant planet like Jupiter or Saturn, where it was warmer than the typical comet-forming regions, Researcher Says.<\/p>\n\n\n\n

In addition, Astronomers from the Institute of Space and Astronautical Science<\/a>, Japan Aerospace Exploration Agency<\/a> (ISAS\/JAXA), Kyoto Sangyo University (KSU)<\/a>, National Astronomical Observatory of Japan (NAOJ),<\/a> and Okayama University of Science (OUS) <\/a>conducted mid-infrared spectroscopic and imaging observations of comet 21P\/G-Z using COMICS since July 5, 2005.<\/p>\n\n\n\n

The obtained spectrum of\ncomet 21P\/G-Z shows emission peaks of crystalline silicate grains, which are\nusually also seen in many other comets. <\/p>\n\n\n\n

Comet 21P\/G-Z is enriched\nin complex organic molecules. The enrichment of complex organic molecules requires\na warm temperature or high energetic particle environment around the comet in\nthe early solar nebula.<\/p>\n\n\n\n

This study is financially supported by MEXT Supported Program for the Strategic Research Foundation at Private Universities and JSPS KAKENHI Grants-in-Aid for Scientific Research.<\/p>\n\n\n\n

# 21P\/G-Z<\/a> #Comet<\/p>\n
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By using Sabaru Telescope, astronomers have detected an unidentified infrared emission band from comet 21P\/G-Z. <\/p>\n","protected":false},"author":2,"featured_media":17043,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17,20],"tags":[],"class_list":["post-17042","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research","category-space-news"],"featured_image_urls":{"full":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2019\/11\/21P_G_Z_revoscience.jpg",1739,1227,false],"thumbnail":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2019\/11\/21P_G_Z_revoscience-200x200.jpg",200,200,true],"medium":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2019\/11\/21P_G_Z_revoscience-300x212.jpg",300,212,true],"medium_large":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2019\/11\/21P_G_Z_revoscience-768x542.jpg",750,529,true],"large":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2019\/11\/21P_G_Z_revoscience-1024x723.jpg",750,530,true],"1536x1536":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2019\/11\/21P_G_Z_revoscience-1536x1084.jpg",1536,1084,true],"2048x2048":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2019\/11\/21P_G_Z_revoscience.jpg",1739,1227,false],"ultp_layout_landscape_large":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2019\/11\/21P_G_Z_revoscience.jpg",1134,800,false],"ultp_layout_landscape":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2019\/11\/21P_G_Z_revoscience.jpg",808,570,false],"ultp_layout_portrait":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2019\/11\/21P_G_Z_revoscience.jpg",600,423,false],"ultp_layout_square":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2019\/11\/21P_G_Z_revoscience.jpg",600,423,false],"newspaper-x-single-post":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2019\/11\/21P_G_Z_revoscience-760x490.jpg",760,490,true],"newspaper-x-recent-post-big":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2019\/11\/21P_G_Z_revoscience-550x360.jpg",550,360,true],"newspaper-x-recent-post-list-image":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2019\/11\/21P_G_Z_revoscience-95x65.jpg",95,65,true],"web-stories-poster-portrait":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2019\/11\/21P_G_Z_revoscience.jpg",640,452,false],"web-stories-publisher-logo":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2019\/11\/21P_G_Z_revoscience.jpg",96,68,false],"web-stories-thumbnail":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2019\/11\/21P_G_Z_revoscience.jpg",150,106,false]},"author_info":{"info":["RevoScience"]},"category_info":"Research<\/a> Space\/ AstroPhysics<\/a>","tag_info":"Space\/ AstroPhysics","comment_count":"0","_links":{"self":[{"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/posts\/17042","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/comments?post=17042"}],"version-history":[{"count":0,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/posts\/17042\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/media\/17043"}],"wp:attachment":[{"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/media?parent=17042"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/categories?post=17042"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/tags?post=17042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}