Perevod: Vol'nova A.A.
Poyasnenie:
Dlya orbital'nogo gamma-teleskopa Zemlya na samom dele yavlyaetsya samym yarkim istochnikom
gamma-izlucheniya
— samoi
vysokoenergichnoi formy sveta.
Gamma-luchi, prihodyashie s Zemli, rozhdayutsya,
kogda
vysokoenergichnye chasticy kosmicheskih
luchei
stalkivayutsya s atmosferoi.
I hotya takoe vzaimodeistvie prepyatstvuet popadaniyu vrednoi radiacii na poverhnost'
Zemli, zemnoe
gamma-izluchenie dominiruet na etom zamechatel'nom snimke Zemli i neba, poluchennom
s pomosh'yu teleskopa
LAT (Large Area Telescope — Teleskop Bol'shoi Ploshadi), ustanovlennogo na
orbital'noi gamma-observatorii Fermi.
Izobrazhenie bylo postroeno tol'ko po tem nablyudeniyam, kogda Mlechnyi Put' prohodil
vblizi zenita, to est'
tochno nad sputnikom Fermi.
Na kartinke zenit nahoditsya v centre.
Zemlya i tochki vblizi nadira, nahodyashiesya pryamo pod sputnikom, nahodyatsya u kraev izobrazheniya,
obrazuya
proekciyu Zemli i vsego neba s tochki zreniya Fermi.
Gamma-izluchenie nizkoi intensivnosti pokazano sinim cvetom, a bolee yarkie uchastki
izobrazheny zheltymi
ottenkami v logarifmicheskoi shkale.
Krai izobrazheniya zapolnilo zheltoe kol'co yarkogo gamma-izlucheniya, kotoroe pokazyvaet
raspolozhenie limba
nashei skromnoi planety.
Otnositel'no slaboe gamma-izluchenie ot istochnikov v Mlechnom
Puti narisovalo
polosu, rastyanuvshuyusya po diagonali.
Observatoriya Fermi byla zapushena v kosmos 11 iyunya 2008
goda chtoby
issledovat' Vselennuyu v vysokih
energiyah, i na
etoi nedele ona prazdnuet 2000-yi den' na nizkoi okolozemnoi orbite.
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
Yanvar' Fevral' Mart Aprel' Mai Iyun' Iyul' Avgust Sentyabr' Oktyabr' Noyabr' Dekabr' |
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Publikacii s klyuchevymi slovami:
Milky Way - atmosphere - gamma-teleskop - gamma-izluchenie - gamma-astronomiya - orbital'naya observatoriya
Publikacii so slovami: Milky Way - atmosphere - |