File:Spectra of iron lines in 44i Bootis.png

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English: Spectra of iron lines in 44i Bootis taken by Chandra X-ray Observatory

Date

25 April 2000

Source

44i Bootis: The Terrible Twos: What Might Happen If Our Sun Had A Twin (TIFF)

Author

CXC/N. Brickhouse et al.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	09:03, 10 February 2015		2,100 × 1,500 (169 KB)	Mikhail Ryazanov (talk \| contribs)	Negative (white background)
	08:59, 10 February 2015		2,100 × 1,500 (165 KB)	Mikhail Ryazanov (talk \| contribs)	{{Information \|Description={{en\|Spectra of iron lines in 44i Bootis taken by Chandra X-ray Observatory}} \|Source=[http://chandra.harvard.edu/photo/2001/0176/ 44i Bootis: The Terrible Twos: What Might Happen If Our Sun Had A Twin] ([http://chandra.harva...

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- ۴۴ گاوران
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- うしかい座i星
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- 44 Волопаса

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PNG file comment	The blue spheres are an artist's conception of two closely orbiting stars known as 44i Bootis. The stars pass in front of one another every three hours. The red arrow in the illustration indicates the direction that the stars are orbiting. Chandra's data on the Neon X-ray emission from the stars is depicted on the plots to the right. The 4 panels show the shift in the wavelength at which the emission peaks as the stars orbit one another. By using the Doppler effect the same process that causes the wavelength of an ambulance's siren to shift up and down as the ambulance approaches and recedes astronomers were able to pinpoint the location of the source of most of the X-rays. To their surprise, they found that the stars produce most of the X-rays from near their poles. In contrast, the active X-ray regions on the Sun tend to be near the equator.
Horizontal resolution	118.11 dpc
Vertical resolution	118.11 dpc
File change date and time	08:45, 10 February 2015

File:Spectra of iron lines in 44i Bootis.png

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