File:G19 xray.tif

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摘要

描述G19 xray.tif	English: G1.9+0.3 is the remains of the most recent supernova, in Earth's time frame, known to have occurred in the Milky Way. If gas and dust had not heavily obscured it, the explosion would have been visible from Earth just over a century ago. A new long Chandra observation - equivalent to over 11 days of time - reveals new details about the explosion. Fast Facts for G1.9+0.3: Credit X-ray (NASA/CXC/NCSU/K.Borkowski et al.) Release Date June 26, 2013 Scale Image is 8 arcmin across (About 60 light years) Category Supernovas & Supernova Remnants Coordinates (J2000) RA 17h 48m 45s - Dec -27° 10' 00" Constellation Sagittarius Observation Date 15 pointings between Feb 2007 and Jul 2011 Observation Time 362 hours (15 days 2 hours) Obs. ID 6708, 8521, 10111, 10112, 10928, 10930, 12689-95, 13407, 13509 Instrument ACIS References Borkowski, K, et al, 2013, ApJ Letters (Submitted); arXiv:1305.7399 Color Code X-ray (Red, Green, Blue) .
日期	2013年6月26日
來源	http://chandra.harvard.edu/photo/2013/g19/ http://chandra.harvard.edu/photo/2013/g19/g19_xray.tif
作者	NASA/CXC/NCSU/K.Borkowski et al.
授權許可 (重用此檔案)	See Category:Chandra_images

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	日期/時間	縮⁠圖	尺寸	用戶	備⁠註
目前	2014年1月3日 (五) 17:30		1,500 × 1,280（804 KB）	Fabian RRRR	crop
	2014年1月3日 (五) 17:25		3,600 × 3,600（984 KB）	Fabian RRRR	=={{int:filedesc}}== {{Information \|description={{en\|1=G1.9+0.3 is the remains of the most recent supernova, in Earth's time frame, known to have occurred in the Milky Way. If gas and dust had not heavily obscured it, the explosion would have been visi...

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影像標題	A new Chandra observation is providing important details about the most recent supernova known to have exploded in the Milky Way. The explosion would have been visible from Earth a little more than a hundred years ago if it had not been heavily obscured by dust and gas. G1.9+0.3 was most likely created when a white dwarf star underwent a thermonuclear detonation and was destroyed - either after merging with another white dwarf or by pulling too much material from an orbiting companion star. The Chandra data show that most of the X-ray emission is "synchrotron radiation," produced by extremely energetic electrons accelerated in the rapidly expanding blast wave of the supernova. The new X-ray study also reveals that the explosion that created G1.9+0.3 was asymmetrical and unusually energetic.
寬度	1,500 px
高度	1,280 px
每像素位元	8 8 8
壓縮方式	LZW
像素合成	RGB
方位	標準
像素數量	3
每帶行數	64
水平解析度	300 dpi
垂直解析度	300 dpi
資料排列	矮胖格式