Astronomy C Question Marathon

Test your knowledge of various Science Olympiad events
Crazy Puny Man
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Re: Astronomy C Question Marathon

Post by Crazy Puny Man »

alpacas wrote: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?
Jeez the rules didn't even come out yet at the time you posted this >_>

[hide]How does this work?[/hide]

r = 'rapid'; it's the process that forms elements heavier than iron in a supernova explosion, where nuclei (or neutrons? I can't remember, someone specify for me please >_>) rapidly collide with each other and fuse into heavier elements.

Am I right? It's been a long time since I read about that
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Re: Astronomy C Question Marathon

Post by syo_astro »

Crazy Puny Man wrote:
alpacas wrote: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?
Jeez the rules didn't even come out yet at the time you posted this >_>

r = 'rapid'; it's the process that forms elements heavier than iron in a supernova explosion, where nuclei (or neutrons? I can't remember, someone specify for me please >_>) rapidly collide with each other and fuse into heavier elements.

Am I right? It's been a long time since I read about that
The r-process itself is a rapid process of neutron capture by heavy nuclei (should we elaborate more?).  The DSO would likely be a massive explosion (Ib/Ic/II/etc).  This is quite important in forming heavy nuclei.  But Crazy Puny Man can take it if that's all good enough for alpacas.
I feel like the questions could be anything we want, even math. I guess this is just for practice. When everyone gets the rules maybe we could even do DSO/object ID :D. Though, if any mods could help on this that'd be a better answer.
Last edited by syo_astro on Tue Sep 03, 2013 8:24 pm, edited 3 times in total.
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Re: Astronomy C Question Marathon

Post by iwonder »

I think as long as the questions are related to scioly astronomy there aren't any guidelines. Just have fun :D
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Re: Astronomy C Question Marathon

Post by syo_astro »

Also, for Crazy Puny Man (I messed with some of my answers to hide them as shown with the edits >.<). The hide works a few ways. Either you can type or copy and paste: [hide]click me|a[ /hide]
Before the vertical bar is the text we'll see, after is what is hidden. You'd have to remove the space also. Or there is a hide button above where you make posts, but you still need to put in the vertical bar.
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Re: Astronomy C Question Marathon

Post by Crazy Puny Man »

Alright, coolio.

And you can take this question :D for some reason I'm feeling particularly lazy...
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Re: Astronomy C Question Marathon

Post by syo_astro »

Wait, did that work for alpacas?
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Re: Astronomy C Question Marathon

Post by alpacas »

yeah go for it, thats pretty much what I was looking for
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Re: Astronomy C Question Marathon

Post by syo_astro »

Okay, an RR Lyrae star has an apparent magnitude of +11. What is the distance to this star in Mpc?
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Re: Astronomy C Question Marathon

Post by FawnOnyx »

Average absolute magnitude of RR Lyrae: +0.75
Use distance modulus: d=10^[(11-0.75+5)/5] = 1100 pc = 0.0011 Mpc
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Re: Astronomy C Question Marathon

Post by syo_astro »

FawnOnyx wrote:
Average absolute magnitude of RR Lyrae: +0.75
Use distance modulus: d=10^[(11-0.75+5)/5] = 1100 pc = 0.0011 Mpc
That's what I got. Your move.
B: Crave the Wave, Environmental Chemistry, Robo-Cross, Meteo, Phys Sci Lab, Solar System, DyPlan (E and V), Shock Value
C: Microbe Mission, DyPlan (Fresh Waters), Fermi Questions, GeoMaps, Grav Vehicle, Scrambler, Rocks, Astro
Grad: Writing Tests/Supervising (NY/MI)

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