Avtory i prava: Kevin Herli ( Laboratoriya kosmicheskih nauk )
Poyasnenie:
27 avgusta byla zaregistrirovana intensivnaya vspyshka rentgenovskogo i gamma-izlucheniya
. Etot vysokoenergichnyi signal byl zaregistrirovan pyat'yu kosmicheskimi observatoriyami Tret'ei mezhplanetnoi seti po poisku gamma-vspleskov
: Uliss , "Veter" , Rentgenovskii
teleskop Rossi , NEAR i BeppoSAKS . Signal byl nastol'ko moshnym,
chto detektory "Vetra" i Rentgenovskogo teleskopa Rossi zashkalili, a gamma-instrument srabotal i avtomaticheski pereklyuchil apparat NEAR v bezopasnyi rezhim. Kak pokazano na grafike,
postroennom po dannym detektora Uliss, proizoshlo mgnovennoe uvelichenie otschetov do vysokogo urovnya, a zatem medlennoe ugasanie s nebol'shimi vspleskami kazhdye 5 sekund. Nablyudaemyi
na etom apparate signal po polozheniyu na nebe byl otozhdestvlen so vspyshkoi odnogo iz ranee izvestnyh chetyreh
tak nazyvaemyh "povtoryayushihsya istochnikov v myagkih gamma-luchah" . Schitaetsya, chto eti ekzoticheskie istochniki
gamma-luchei predstavlyayut soboi vrashayushiesya neitronnye zvezdy s ochen' sil'nym magnitnym polem. Ih nazyvayut magnetarami . Etot magnetar
imeet oboznachenie SGR 1900+14 . Uchenye polagayut, chto on obrazovalsya v rezul'tate vspyshki
sverhnovoi primerno 1500 let nazad. Magnitnoe pole etogo magnetara ocenivaetsya v 500000000000000 raz sil'nee magnitnogo polya Zemli
.
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& Michigan Tech. U.
Publikacii s klyuchevymi slovami:
magnetar - soft gamma repeater - neutron star - neitronnye zvezdy - magnitnoe pole - rentgenovskoe izluchenie - gamma-izluchenie
Publikacii so slovami: magnetar - soft gamma repeater - neutron star - neitronnye zvezdy - magnitnoe pole - rentgenovskoe izluchenie - |