{"id":43818,"date":"2018-03-23T12:55:59","date_gmt":"2018-03-23T09:55:59","guid":{"rendered":"https:\/\/btv.md\/?p=43818"},"modified":"2018-03-23T12:55:59","modified_gmt":"2018-03-23T09:55:59","slug":"detaliul-fascinant-despre-gaurile-negre-obiectele-cosmice-ejecteaza-mase-de-dimensiunea-stelelor","status":"publish","type":"post","link":"https:\/\/www.btv.md\/ro\/detaliul-fascinant-despre-gaurile-negre-obiectele-cosmice-ejecteaza-mase-de-dimensiunea-stelelor\/","title":{"rendered":"Detaliul fascinant despre g\u0103urile negre: obiectele cosmice ejecteaz\u0103 mase de dimensiunea stelelor"},"content":{"rendered":"

Un nou studiu al oamenilor de \u0219tiin\u021b\u0103 de la Massachusetts Institute of Technology \u015fi de la John Hopkins University demonstreaz\u0103 observarea undelor radio care aproape oglindesc radia\u0163iile X ale semnalului luminos, scrie evzmd.md<\/a>.<\/h4>\n

Aceasta este o dovad\u0103 c\u0103 particulele energetice care ies din gaura neagr\u0103 sunt propor\u0163ionale cu masa de material care intr\u0103, scrie descoper\u0103.ro.<\/p>\n

\u201eAm descoperit c\u0103 undele radio sunt de fapt un \u201eecou\u201d ale radia\u0163iilor X\u201d, a precizat Dheeraj Pasham, autorul principal al studiului. \u201e\u015etim c\u0103 cel mai probabil radia\u0163iile X provin din materialul fierbinte care cade \u00eentr-o gaur\u0103 neagr\u0103. Faptul c\u0103 vedem acela\u015fi tipar de emisie \u00een radia\u0163ii la dou\u0103 s\u0103pt\u0103m\u00e2ni dup\u0103, ne spune c\u0103 exist\u0103 o conexiune clar\u0103 \u00eentre ce se \u00eent\u00e2mpl\u0103 \u00een gaura neagr\u0103 \u015fi ce este emis\u201d.<\/p>\n

\u00centr-o lucrare publicat\u0103 \u00een The Astrophysical Journal, Pasham \u015fi colegii s\u0103i furnizeaz\u0103 dovezi la o problem\u0103 care a r\u0103mas p\u00e2n\u0103 acum f\u0103r\u0103 dovezi.<\/p>\n

For\u0163ele gravita\u0163ionale ale unei g\u0103uri negre sunt aproape de neimaginat. C\u00e2nd o stea trece pe l\u00e2ng\u0103 o gaur\u0103 neagr\u0103, aceasta \u00eencepe s\u0103 se \u00eentind\u0103 \u015fi s\u0103 se aplatizeze, p\u00e2n\u0103 c\u00e2nd steaua este sf\u0103r\u00e2mat\u0103, iar apoi devorat\u0103.<\/p>\n

Acest consum creeaz\u0103 impulsuri de radia\u0163ii X \u015fi explozii optice \u015fi ultraviolete care ies din materialul incandescent. \u201e\u015etim c\u0103 undele radio vin din electronii \u00eenc\u0103rca\u0163i energetic care se mi\u015fc\u0103 \u00eentr-un c\u00e2mp magnetic – acesta este un proces cunoscut\u201d, a precizat Pasham. \u201eProblema a fost provenien\u0163a acestor electroni energetici\u201d.<\/p>\n

Pasham \u015fi echipa sa au putut asocia aceste unde radio misterioase cu un jet de energie pe care g\u0103urile negre \u00eencep s\u0103-l elibereze odat\u0103 ce au consumat o stea. Cu ajutorul acestui studiu, Pasham \u015fi echipa sa pot elabora un model explicativ prin care s\u0103 \u00een\u0163eleag\u0103 ce determin\u0103 ca g\u0103urile negre s\u0103 elibereze at\u00e2t de mult material.<\/p>\n","protected":false},"excerpt":{"rendered":"

Un nou studiu al oamenilor de \u0219tiin\u021b\u0103 de la Massachusetts Institute of Technology \u015fi de la John Hopkins University demonstreaz\u0103 observarea undelor radio care aproape oglindesc radia\u0163iile X ale semnalului luminos, scrie evzmd.md. Aceasta este o dovad\u0103 c\u0103 particulele energetice care ies din gaura neagr\u0103 sunt propor\u0163ionale cu masa de material care intr\u0103, scrie descoper\u0103.ro. […]<\/p>\n","protected":false},"author":4,"featured_media":43819,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-43818","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-externe"],"yoast_head":"\nDetaliul fascinant despre g\u0103urile negre: obiectele cosmice ejecteaz\u0103 mase de dimensiunea stelelor<\/title>\n<meta name=\"description\" content=\"Un nou studiu al oamenilor de \u0219tiin\u021b\u0103 de la Massachusetts Institute of Technology \u015fi de la John Hopkins University demonstreaz\u0103 observarea undelor radio care aproape oglindesc radia\u0163iile X ale semnalului luminos, scrie evzmd.md.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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