Avtory i prava: NASA,
Evropeiskoe kosmicheskoe agentstvo,
K. Sahu (Nauchnyi institut kosmicheskogo teleskopa)
i
nauchnaya gruppa SWEEPS
Perevod: D.Yu.Cvetkov
Poyasnenie:
Eto bogatoe zvezdami pole
v napravlenii centra nashei Galaktiki Mlechnyi Put'
okazalos' otlichnym mestom dlya poiskov
planet za
predelami nashei Solnechnoi sistemy.
Deistvitel'no, regulyarno poluchaya izobrazheniya okolo 180 tysyach zvezd
v etom pole
kazhduyu nedelyu, astronomy osushestvlyayut s pomosh'yu kosmicheskogo teleskopa Habbla
proekt po poisku zatmenii ot ekzoplanet v okne Strel'ca
(Sagittarius Window Eclipsing
Extrasolar Planet Search - SWEEPS).
Oni ishut korotkie, periodicheskie oslableniya bleska, vyzyvaemye
zatmeniyami,
ili prohozhdeniyami bol'shih planet pered zvezdami, vokrug kotoryh oni obrashayutsya.
Tak kak veroyatnost'
uvidet' takoe zatmenie ochen' mala,
dlya polucheniya rezul'tata
neobhodimo issledovat' kak mozhno bol'she zvezd.
V konce koncov, astronomy iz gruppy SWEEPS
obnaruzhili 16
zvezd (na pokazannoi zdes' chasti polnoi kartinki zelenymi kruzhkami otmecheny 11 iz nih),
vokrug kotoryh, veroyatno, obrashayutsya s periodom v neskol'ko dnei (ili
eshe men'shim) bol'shie planety razmerom s Yupiter.
Bol'shie planety, orbity kotoryh tak blizki k ih zvezdam, nazyvayut
goryachimi yupiterami.
V budushem NASA planiruet osushestvit' zapusk apparata
Kepler,
na kotorom mozhno budet obnaruzhit' prohozhdeniya
planet razmerom s Zemlyu.
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Publikacii s klyuchevymi slovami:
extrasolar planet - HST - transit - ekzoplaneta - kosmicheskii teleskop im.Habbla - Prohozhdenie
Publikacii so slovami: extrasolar planet - HST - transit - ekzoplaneta - kosmicheskii teleskop im.Habbla - Prohozhdenie | |
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