Avtory i prava: NASA/Observatoriya Chandra /
Universitet Kolumbii/
K.Heili i dr.
Perevod: D.Yu.Cvetkov
Poyasnenie:
Nedavnii neformal'nyi opros pokazal, chto u astronomov poka net horoshego
obshego nazvaniya
dlya gruppy chernyh dyr, odnako ono mozhet potrebovat'sya.
Krasnye kruzhki na etom
rentgenovskom izobrazhenii,
poluchennom observatoriei Chandra, otmechayut gruppu iz dyuzhiny chernyh dyr,
yavlyayushihsya chlenami dvoinyh zvezdnyh sistem.
Massa chernyh dyr v dvoinyh sistemah sostavlyaet ot 5 do 30 mass Solnca,
oni nahodyatsya na rasstoyaniyah men'she 3 svetovyh let ot
centra nashei Galaktiki,
v kotorom raspolozhena sverhmassivnaya chernaya dyry, izvestnaya kak Strelec A* (Sgr A*).
Zheltymi kruzhkami otmecheny
rentgenovskie
istochniki, kotorye, veroyatno, yavlyayutsya menee massivnymi
neitronnymi zvezdami ili belymi karlikami v dvoinyh zvezdnyh sistemah.
Odinochnaya chernaya dyra
nevidima, odnako esli ona vhodit v dvoinuyu sistemu, to mozhet akkrecirovat' veshestvo
normal'noi zvezdy – vtorogo chlena pary, i izluchat' rentgenovskie luchi.
Na rasstoyanii do centra Galaktiki Chandra mozhet registrirovat' tol'ko samye yarkie
iz dvoinyh sistem s chernymi dyrami kak tochechnye istochniki rentgenovskih luchei,
poetomu mozhno predpolozhit', chto v etoi oblasti sushestvuet eshe mnogo bolee slabyh
izuchayushih rentgenovskie luchi dvoinyh sistem s chernymi dyrami, kotorye poka
ne mogut byt' obnaruzheny.
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Publikacii s klyuchevymi slovami:
black hole - Galactic Center - centr Galaktiki - chernye dyry
Publikacii so slovami: black hole - Galactic Center - centr Galaktiki - chernye dyry | |
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