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NASA's Chandra shows Milky Way has a halo of hot gas
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| Salvo | Date: Thursday, 04.10.2012, 17:51 | Message # 1 |
 Star Engineer
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| http://www.nasa.gov/mission_pages/chandra/news/H-12-331.html
It looks strange, why we can't see it? 
The universe is not required to be in perfect harmony with human ambition.
CPU: Intel Core i7 4770 GPU: ASUS Radeon R9 270 RAM: 8 GBs
(still don't know why everyone is doing this...)
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| DoctorOfSpace | Date: Thursday, 04.10.2012, 18:13 | Message # 2 |
 Galaxy Architect
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| I hate when I get a Halo of hot around me. 
Quote The estimated mass of the halo is comparable to the mass of all the stars in the galaxy.
Now thats pretty incredible.
Intel Core i7-5820K 4.2GHz 6-Core Processor
G.Skill Ripjaws V Series 32GB (4 x 8GB) DDR4-2400 Memory
EVGA GTX 980 Ti SC 6GB
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| apenpaap | Date: Thursday, 04.10.2012, 18:15 | Message # 3 |
 World Builder
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| Well, it's extremely undense. Interstellar space is absolutely gigantic compared to stars; Alpha Centauri is 20000 times further away than Neptune, and Neptune's orbital radius is 80000 times bigger than the Sun's radius. Therefore, a gas enveloping the entire galaxy like that would probably need densities of only a couple hundred atoms per litre to be as massive as 10 billion suns; which is as good as nothing. Certainly much less dense than any vacuum we can make on Earth, the Sun's corona, or the Moon's atmosphere. Something with so little density would be completely transparent, yet could be ribonkulously massive because of its size.
I occasionally stream at http://www.twitch.tv/magistermystax. Sometimes SE, sometimes other games.
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| Salvo | Date: Thursday, 04.10.2012, 19:18 | Message # 4 |
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Star Engineer
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Italy
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| Quote (apenpaap) Certainly much less dense than any vacuum we can make on Earth, the Sun's corona, or the Moon's atmosphere.
Amazing 
But when I saw:
Quote temperatures between 100,000 and 1 million kelvins.
My expression was like this:
The universe is not required to be in perfect harmony with human ambition.
CPU: Intel Core i7 4770 GPU: ASUS Radeon R9 270 RAM: 8 GBs
(still don't know why everyone is doing this...)
Edited by Salvo - Thursday, 04.10.2012, 19:19 |
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| Antza2 | Date: Thursday, 04.10.2012, 19:44 | Message # 5 |
 World Builder
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Finland
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| Quote (Salvo) PewDiePie picture
*Brofist*
Go to antza2.deviantart.com for cool photos!
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| SpaceEngineer | Date: Thursday, 04.10.2012, 22:27 | Message # 6 |
 Author of Space Engine
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| Quote (Salvo) But when I saw: Quotetemperatures between 100,000 and 1 million kelvins. My expression was like this:
Did you know that the Solar corona has a temperature 1-2 million kelvins, and Earth's orbit has passed through it? But despite the huge temperature, its density is extremely low, so we on Earth can't feel it's influence and even can't see it; only its most dense layers near the Sun at a full solar eclipse.
*
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| Aerospacefag | Date: Thursday, 04.10.2012, 22:35 | Message # 7 |
 Pioneer
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| By the way, the Earth ionosphere(beyond 85 km from surface) is mostly composed of ionized and irradiated layer of (very thin) plasma with temperature up to 1300 K.
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| Salvo | Date: Friday, 05.10.2012, 13:54 | Message # 8 |
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Star Engineer
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Italy
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| Quote (SpaceEngineer) its density is extremely low, so we on Earth can't feel it's influence
i know that, just joking
The universe is not required to be in perfect harmony with human ambition.
CPU: Intel Core i7 4770 GPU: ASUS Radeon R9 270 RAM: 8 GBs
(still don't know why everyone is doing this...)
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| Disasterpiece | Date: Friday, 02.11.2012, 09:53 | Message # 9 |
 World Builder
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United States
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| Quote (Salvo) My expression was like this:
Wow, that's really weird (no offense intended).
I play teh spase engien
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