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[NASA 4K短片] 马卡林星系 2017 (246Mbps) [2160P/MOV/709MB] Animated illustration of the feedback process thought to be occurring in active galactic nuclei (AGN).
Credit: NASA's Goddard Space Flight Center
This animation illustrates the active galactic nuclei (AGN) feedback process occurring in the galaxy Markarian 573. The AGN itself, a supermassive black hole and its accretion disk surrounded by a dense wide, thick ring of dust and gas, is shown first. The ring, also called a torus, restricts escaping radiation to a pair of conical regions extending above and below its plane. The animation then zooms out to reveal the interaction between radiation escaping from the AGN's conical emitting regions and the gas in the galaxy's disk. The disk gas initially rotates in the galaxy's plane and becomes ionized as it passes through the AGN radiation field. Gas located less than about 2,500 light-years from the AGN accelerates away and forms fast-moving outflows. Gas located at larger distances also becomes ionized, but it is not driven away from the nucleus and remains rotating in the galaxy's disk. These interactions likely explain the spatially resolved structure and motions astronomers observe in other nearby AGN.
General
Complete name : AGN_Feedback_in_Markarian_573_3840x2160_246Mbps.mov
Format : MPEG-4
Format profile : QuickTime
Codec ID : qt 0000.00 (qt )
File size : 709 MiB
Duration : 24 s 157 ms
Overall bit rate mode : Variable
Overall bit rate : 246 Mbps
Encoded date : UTC 2017-06-12 13:41:45
Tagged date : UTC 2017-06-12 13:43:39
Writing library : Apple QuickTime
Video
ID : 1
Format : ProRes
Format version : Version 0
Format profile : 422
Codec ID : apcn
Duration : 24 s 157 ms
Bit rate mode : Variable
Bit rate : 246 Mbps
Width : 3840 pixels
Height : 2160 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:2
Scan type : Progressive
Bits/(Pixel*Frame) : 0.990
Stream size : 708 MiB (100%)
Title : Core Media Video
Writing library : Apple
Encoded date : UTC 2017-06-12 13:41:46
Tagged date : UTC 2017-06-12 13:43:39
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Other
ID : 2
Type : Time code
Format : QuickTime TC
Duration : 24 s 157 ms
Time code of first frame : 00:00:00:00
Time code, striped : Yes
Title : Core Media Time Code
Encoded date : UTC 2017-06-12 13:41:46
Tagged date : UTC 2017-06-12 13:43:39
Bit rate mode : CBR
播放器: Potplaye/MPC-HC
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发表于 2017-8-20 19:36
![[NASA 4K短片]马卡林星系 2017 (246Mbps)[2160P/MOV/709MB]](https://www.znds.com/static/image/common/none.gif)
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