Rambler's Top100Astronet    
  po tekstam   po klyuchevym slovam   v glossarii   po saitam   perevod   po katalogu
 


Dusting Spiral Galaxies
<< Yesterday 15.01.1998 Tomorrow >>
Dusting Spiral Galaxies
Credit & Copyright: W. Keel and R. White (U. Alabama), NASA
Explanation: How much dust is in spiral galaxies? Does it block out much of the starlight? Because astronomers rely on an accurate knowledge of galaxy properties to investigate a wide range of problems, like galaxy and quasar evolution and the nature of dark matter, answers to simple questions like this are key. This striking, detailed Hubble Space Telescope image of dust in the outer reaches of a foreground spiral galaxy (left) back lit by an elliptical galaxy offers an elegant approach to providing the answers. As expected, dust lanes in the foreground galaxy seem to be associated with spiral arms. But surprisingly, many dust regions are not completely opaque and the dust is more smoothly distributed than anticipated. This "overlapping" pair of galaxies is cataloged as AM1316-241 and is about 400 million light-years away in the constellation Hydra.

<<  Yanvar'  >>
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 31  
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   2025  
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.

Russkii tekst
Based on Astronomy Picture Of the Day
Publikacii s klyuchevymi slovami: dust - spiral galaxy - pyl' - Spiral'nye vetvi galaktik
Publikacii so slovami: dust - spiral galaxy - pyl' - Spiral'nye vetvi galaktik
Sm. takzhe:
Vse publikacii na tu zhe temu >>

Ocenka: 2.0 [golosov: 67]
 
O reitinge
Versiya dlya pechati Raspechatat'

Astronet | Nauchnaya set' | GAISh MGU | Poisk po MGU | O proekte | Avtoram

Kommentarii, voprosy? Pishite: info@astronet.ru ili syuda

Rambler's Top100 Yandeks citirovaniya