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well, the subject says it all: are there binaries with visible matter
exchange? |
#2
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No, they're too close to resolve.
"username" e-mail@adress wrote in message ... well, the subject says it all: are there binaries with visible matter exchange? |
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Of course if he/she means "detectable" mass exchange just about any
close binary would qualify - spectroscopic binaries, eclipsing variables, novae, and so on. In message k.net, Bill Nunnelee writes No, they're too close to resolve. "username" e-mail@adress wrote in message ... well, the subject says it all: are there binaries with visible matter exchange? -- Rabbit arithmetic - 1 plus 1 equals 10 Remove spam and invalid from address to reply. |
#4
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I meant visible detection.
"Jonathan Silverlight" wrote in message ... Of course if he/she means "detectable" mass exchange just about any close binary would qualify - spectroscopic binaries, eclipsing variables, novae, and so on. In message k.net, Bill Nunnelee writes No, they're too close to resolve. "username" e-mail@adress wrote in message ... well, the subject says it all: are there binaries with visible matter exchange? -- Rabbit arithmetic - 1 plus 1 equals 10 Remove spam and invalid from address to reply. |
#5
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Interestingly, the two components of Sirius must have exchanged mass in the
past, because the less massive star (the white dwarf) is the most highly evolved. If anyone had been around then and the distance was still around 8 light years, that might have been seen visually with a scope. Generally though, visual doubles are really quite distant with periods of hundreds or thousands of years. The greater the separation, the larger the Rouche lobe that would have to be filled before matter could spill over to the other star. The matter basically has to make it out to the Lagrange point between the two, where the gravitational pulls are balanced. "username" e-mail@adress wrote in message ... I meant visible detection. "Jonathan Silverlight" wrote in message ... Of course if he/she means "detectable" mass exchange just about any close binary would qualify - spectroscopic binaries, eclipsing variables, novae, and so on. In message k.net, Bill Nunnelee writes No, they're too close to resolve. "username" e-mail@adress wrote in message ... well, the subject says it all: are there binaries with visible matter exchange? -- Rabbit arithmetic - 1 plus 1 equals 10 Remove spam and invalid from address to reply. |
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