Explanation: Why is M77 surrounded by an ultraviolet glow? M77, also called NGC 1068, appears at first sight to be a relatively normal barred spiral galaxy. But when photographed in the ultraviolet (UV), as shown above in false color, the galaxy sports an ultraviolet halo - shown as violet in the photograph. The blue spiral structure closer to the picture's center indicates normal ultraviolet emission from bright young stars that have recently formed there. Astronomers now hypothesize that the outer glow arises from UV light emitted from the galaxy's active center and reflected to us from clouds of gas and dust. These same gas and dust clouds obscure the active center of this Seyfert galaxy - where an ultramassive black hole is thought to live.

<<  Sentyabr'  >> Pn Vt Sr Cht Pt Sb Vs             1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30             1995   1996   1997 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'

Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
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: spiral'naya galaktika s peremychkoi - Seifertovskaya galaktika - Yadra galaktik - Ul'trafioletovoe izluchenie Publikacii so slovami: spiral'naya galaktika s peremychkoi - Seifertovskaya galaktika - Yadra galaktik - Ul'trafioletovoe izluchenie
Sm. takzhe: Velikolepnaya spiral'naya galaktika NGC 5643 M106: spiral'naya galaktika so strannym yadrom Tri galaktiki v Drakone NGC 2442: galaktika v Letuchei Rybe V rukavah NGC 1097 Spiral'naya galaktika s peremychkoi NGC 1300 Blizkaya spiral'naya galaktika NGC 4945 Vse publikacii na tu zhe temu >>