|
0 members (),
231
guests, and
29
robots. |
Key:
Admin,
Global Mod,
Mod
|
S |
M |
T |
W |
T |
F |
S |
|
|
|
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
|
|
There are no members with birthdays on this day. |
#74143
Wed 14 Dec 2011 05:00:AM
|
Joined: Feb 2001
Posts: 381,903
Launch Director
|
OP
Launch Director
Joined: Feb 2001
Posts: 381,903 |
Like wine in a glass, vast clouds of hot gas are sloshing back and forth in Abell 2052, a galaxy cluster located about 480 million light years from Earth. X-ray data (blue) from NASA's Chandra X-ray Observatory shows the hot gas in this dynamic system, and optical data (gold) from the Very Large Telescope shows the galaxies. The hot, X-ray bright gas has an average temperature of about 30 million degrees. A huge spiral structure in the hot gas -- spanning almost a million light years -- is seen around the outside of the image, surrounding a giant elliptical galaxy at the center. This spiral was created when a small cluster of galaxies smashed into a larger one that surrounds the central elliptical galaxy. The smaller cluster passed the cluster core, the direction of motion of the cluster gas reversed and it traveled back towards the cluster center. The cluster gas moved through the center again and "sloshed" back and forth, similar to wine sloshing in a glass that was jerked sideways. The sloshing gas ended up in a spiral pattern because the collision between the two clusters was off-center. The Chandra data show clear bubbles evacuated by material blasted away from the black hole, which are surrounded by dense, bright, cool rims. As with the sloshing, this activity helps prevent cooling of the gas in the cluster's core, setting limits on the growth of the giant elliptical galaxy and its supermassive black hole. Image Credit: X-ray: NASA/CXC/BU/L.Blanton; Optical: ESO/VLT Source: A Galaxy Cluster Gets Sloshed
David Cottle
UBB Owner & Administrator
|
|
CMS The Best Conveyancing solicitors conveyancing quotes throughout the UK
For any webhosting enquiries please email webmaster@aus-city.com
|
Forums60
Topics687,226
Posts721,837
Members2,957
|
Most Online3,142 Jan 16th, 2023
|
|
|
|
Copyright 1996 - 2023 by David Cottle. Designed by David Bate Jr. All Rights Reserved.
By using this forum, the user agrees not to transfer any data or technical information received under the agreement, to any other entity without the express approval of the AUS-CITY Forum Admins and/or authors of individual posts (Forum Admins and DoD/USSPACECOM for the analysis of satellite tracking data).
Two-line elements (TLE) and all other satellite data presented and distributed via this forum and e-mail lists of AUS-CITY are distributed with permission from DoD/USSTRATCOM.
Reprise Hosting
|
|