Astronomy C Question Marathon
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Jim_R
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Astronomy C Question Marathon
Question Marathon for Astronomy C.
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syo_astro
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Re: Astronomy C Question Marathon
alpacas wrote:What mass range of stars can form Mira variables?
I would say solar-mass/low-mass, but do you want a more specific range?
Last edited by syo_astro on Tue Sep 03, 2013 8:22 pm, edited 1 time in total.
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Crazy Puny Man
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Re: Astronomy C Question Marathon
Low-mass? Doesn't it need to fuse He to become a Mira?
According to the Wikipedia page temps have to be 10^8 K in order to fuse Helium via the triple-alpha process.
According to the Wikipedia page temps have to be 10^8 K in order to fuse Helium via the triple-alpha process.
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syo_astro
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Re: Astronomy C Question Marathon
That's why I said solar-mass/low-mass. Like I'd admit a red dwarf probably wouldn't become a Mira, but technically I think as an example the Sun is a low-mass star (which is basically why I asked whether the person wants a more specific range...didn't want to bother getting out my notesCrazy Puny Man wrote:Low-mass? Doesn't it need to fuse He to become a Mira?
According to the Wikipedia page temps have to be 10^8 K in order to fuse Helium via the triple-alpha process.
). My notes say 0.6 to a few solar masses as a more exact range.B: Crave the Wave, Environmental Chemistry, Robo-Cross, Meteo, Phys Sci Lab, Solar System, DyPlan (E and V), Shock Value
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alpacas
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Re: Astronomy C Question Marathon
I was going for 0.8 to 2 solar masses so I think those answers make sense
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syo_astro
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Re: Astronomy C Question Marathon
Good enough!
Next question, hopefully this isn't one of my...worst questions: What is the Baade-Wesselink method used to determine?
Next question, hopefully this isn't one of my...worst questions: What is the Baade-Wesselink method used to determine?
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syo_astro
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Re: Astronomy C Question Marathon
That's the main thing. But you can use it for SNe too, I think? I believe it's also useful in calibrating standard candles. Good job, wasn't sure how many people knew of it. You go.alpacas wrote:Its like the change in radius for pulsating variables right
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alpacas
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Re: Astronomy C Question Marathon
ok, what is the r-process? What DSOs from this year's rules might eventually have (or have had) the r-process?
Also are these questions supposed to be more like concept or trivia based?
Also are these questions supposed to be more like concept or trivia based?