[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-141382-105":59,"doc-detail-141382-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","solar-system-gamma-ray-astronomy-with-fermi-observatory","Solar System Gamma-Ray - Astronomy with Fermi - Observatory","","Material discusses gamma-ray observational capabilities of the Fermi-LAT for studying solar system objects, with emphasis on solar activity around the solar cycle 24 peak. It outlines expected high-energy flare statistics, identifies moving sources, and describes gamma-ray albedo production from cosmic-ray interactions with surfaces such as the Moon and the Sun. The analysis section presents a moving-coordinates approach and background estimation using a “fake source” method with flux comparisons.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/solar-system-gamma-ray-astronomy-with-fermi-observatory/141382/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/solar-system-gamma-ray-astronomy-with-fermi-observatory/141382.png","ImageObject",300,407,{"name":92,"@type":93},"Jiven","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-06","2026-08-25",true,{"@type":102,"interactionType":103,"userInteractionCount":44},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What makes Fermi-LAT suitable for solar observations above 30 MeV?","Question",{"text":112,"@type":113},"Fermi-LAT is described as the only satellite capable of making solar observations above 30 MeV, enabling study of solar high-energy emission during solar cycle 24.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How does the document estimate the background for moving sources?",{"text":117,"@type":113},"It uses an analysis in moving coordinates and a background model that fits diffuse emission across the whole sky. It also applies a “fake source” method that follows the real source path with an angular offset.",{"name":119,"@type":110,"acceptedAnswer":120},"Which solar system bodies are identified as gamma-ray sources in the slides?",{"text":121,"@type":113},"The document lists the Moon and the Sun via albedo processes, the Earth as a potential source, asteroid populations such as Main Asteroid Belt and Trojans, Kuiper Belt Objects, and other planets.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},141382,1787655146,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":44,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":129,"read_time":144},1099513958607,"https://ap-avatar.wpscdn.com/avatar/100002390cf8733938c?x-image-process=image/resize,m_fixed,w_180,h_180&k=1778829742770036399","Solar System Gamma-Ray  \nAstronomy with Fermi  ~~ Observatory ~~  \n\n| Monica Brigida |\n| --- |\n| Bari University and INFN |\n| on behalf of Solar System |\n| Working group and Fermi LAT\u003Cbr>Collaboration |\n\n1  \n~~ Solar System observation   capabilities with Fermi ~~  \n 􀂄 Solar Activity expected to peak around 2011   \n􀂄 Fermi will operate for nearly the entire  \nduration of solar cycle 24  \n2  \n~~ Solar System observation ~~ ~~ capabilities with Fermi (2) ~~  \n\n| 􀂄 Fermi is the only satellite capable of making solar observations >30 MeV |\n| --- |\n| 􀂄 Coordinated mesurements between LAT gamma-ray and GBM (10 keV-25 MeV) |\n|  |\n| 􀂄 Comparison with RHESSI (1 keV –20 MeV)\u003Cbr>􀂄 Comparison with energetic solar particle observations |\n| (ACE, STEREO, SOHO, WIND) and ground based experiments (Milagro) for flaring Sun alerts |\n|  |\n| 􀂄 About ten high-energy flares expected |\n|  |\n\n3  \n~~ Sources in Solar System ~~  \n􀂄 “γ -ray albedo” due to CR interactions with surface material  \nCR   \n γ   \n􀂄 Moving sources  \n􀂄 Sources:  \n• The Moon (albedo)  \n• The Sun (albedo + inverse  \nCompton)  \n\n| • The Earth\u003Cbr>􀂄 Potential Sources |\n| --- |\n| • Asteroids in different populations:\u003Cbr>􀂄 Main Asteroid Belt (MBAs) |\n| 􀂄\u003Cbr>􀂄 Jovian and Neptunian Trojans (Trojans)\u003Cbr>( ) |\n| 􀂄 Kuiper Belt Objects ( KBOs) |\n| • Other planets |\n\nBelt  \n4  \nFermi: the Sun track in the sky  \nAnalysis and Background  \nestimation approach  \n􀂉 Analysis in Moving Coordinates  \n 􀂉􀂉􀂉􀂉 SSMMUUOONNOONis immssoovvmmooinnvvginaaggbboouuttaabboou11tt°//11dd55aa°°yy//dday   \n􀂉 Ideas for background estimate  \n􀂉 Background model: a fit of the diffuse emission model to the whole sky  \n\n| 􀂉 A “fake” source method\u003Cbr>􀂉 A fake source follow the path of the real source but 30 |\n| --- |\n| degrees away (passes through the same areas on the sky but at different times)\u003Cbr>􀂉 The source flux is the total flux minus the fake source |\n| 􀂉 Fluxes computed with both approaches |\n| 􀂉 Very similar results obtained |\n\nFluxes computed  \n6  \nThe “fake source” idea  \n~6 months of Moon Observations   \nand fluxes  \n| Counts map >100 MeV\u003Cbr>Pixel size 0.25º | Moon disk |\n| --- | --- |\n| |  |\n|  |  |\n|  |  |\n|  |  |\n|  |  |\n\n􀂄 Total Flux (>100 MeV) = 1 .57 x10-6 cm-2 s-1  \n􀂄 Fake Moon Flux (>100 MeV) = 1 .08x10-6 cm-2 s-1  \n~~ 􀂄 Source Flux (>100 MeV) = 4 .9 x10~~-~~7 cm~~-~~2 s~~-~~1 (preliminary) ~~  \n 􀂄 Expected Flux ~ 5x10-7 cm-2 s-1 (@ solar min) (Moskalenko&Porter’08) 8  \n􀂄 EGRET Flux (>100 MeV) = (4 .7±0 .7)x10-7 cm-2 s-1 (Thompson+’97)  \n􀂄 = (5 .55±0 .65)x10-7 cm-2 s-1 (Orlando&Strong’08)   \nMoon  Moon net spectrum Aug-Dec 2008   ~~ Spectra ~~Ferprelmi~~ ~~imiLnAaTry~~ ~~  \nlimb (outer 5’)  \ncenter (inner 20”)  \ndecay  \nMoskalenko &Porter’07  \n~~ of the Moon disk ~~  \nPion  \n9  \nSun emission model: Inverse   \n\n| Compton scattering |\n| --- |\n| e |\n\n| ©UCAR |\n| --- |\n| Inverse-Compton scattering solar photons in the heliosphere by Galactic CR electrons: the emission is |\n| predicted to be extended\u003Cbr>• electrons are isotropic |\n\nInverse  \nof  \nsolar photons  \nin the  \n• photons  \nhave a radial  \nangular distribution  \nMoskalenko ’06 Orlando&Strong’08  \n10","cbCaiuLKwXZtFmfU","https://ap.wps.com/l/cbCaiuLKwXZtFmfU","pdf",1011782,15,"English","# Solar System Gamma-Ray - Astronomy with Fermi - Observatory\n## Solar observation with Fermi-LAT\n## Sources in the Solar System\n## Analysis and background estimation approach\n## The “fake source” method","[{\"question\":\"What makes Fermi-LAT suitable for solar observations above 30 MeV?\",\"answer\":\"Fermi-LAT is described as the only satellite capable of making solar observations above 30 MeV, enabling study of solar high-energy emission during solar cycle 24.\"},{\"question\":\"How does the document estimate the background for moving sources?\",\"answer\":\"It uses an analysis in moving coordinates and a background model that fits diffuse emission across the whole sky. It also applies a “fake source” method that follows the real source path with an angular offset.\"},{\"question\":\"Which solar system bodies are identified as gamma-ray sources in the slides?\",\"answer\":\"The document lists the Moon and the Sun via albedo processes, the Earth as a potential source, asteroid populations such as Main Asteroid Belt and Trojans, Kuiper Belt Objects, and other planets.\"}]","Solar System Gamma-Ray - Astronomy with Fermi - Observatory | PDF",38]