Perevod: D.Yu.Cvetkov
Poyasnenie:
Pochemu eta galaktika tak bystro vrashaetsya?
Nachnem s togo, chto slozhno dazhe opredelit' tip galaktiki
UGC 12591
– u nee est' temnye pylevye polosy, kak u spiral'noi galaktiki, no bol'shoi
diffuznyi
baldzh iz zvezd, kak u
linzovidnoi galaktiki.
Nablyudeniya
neozhidanno
pokazali, chto skorost' vrasheniya
UGC 12591
– okolo 480 km/s, pochti v dva raza bol'she, chem u nashego
Mlechnogo Puti.
Eto – samaya bol'shaya izmerennaya do sih por skorost' vrasheniya.
Massa, neobhodimaya dlya sohraneniya ustoichivosti tak bystro vrashayusheisya galaktiki,
v neskol'ko
raz prevyshaet massu nashei Galaktiki
Mlechnyi Put'.
Vozmozhnye scenarii proishozhdeniya
UGC 12591
vklyuchayut
medlennyi rost
s akkreciei okruzhayushego veshestva i bystryi rost pri
stolknovenii galaktik ili
neskol'kih stolknoveniyah.
Budushie nablyudeniya mogut pomoch' vyyasnit' eto.
Svet, kotoryi my vidim seichas ot
UGC 12591, byl ispushen galaktikoi
400 millionov let nazad,
kogda
derev'ya
tol'ko nachinali poyavlyat'sya na
Zemle.
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:
spiral galaxy - vrashenie - spiral'naya galaktika
Publikacii so slovami: spiral galaxy - vrashenie - spiral'naya galaktika | |
Sm. takzhe:
Vse publikacii na tu zhe temu >> | |
