Astronomy C Question Marathon

Test your knowledge of various Science Olympiad events
Locked
Jim_R
Admin Emeritus
Admin Emeritus
Posts: 283
Joined: May 13th, 2001, 4:22 pm
Division: Grad
Has thanked: 0
Been thanked: 0
Contact:

Astronomy C Question Marathon

Post by Jim_R »

Question Marathon for Astronomy C.
-The path of the Administrator is beset on all sides by the inequities of the selfish and the tyranny of evil men.

-Nothing\'s gonna get deleted. We\'re gonna be like three little Fonzies here. And what\'s Fonzie like? Come on, what\'s Fonzie like?
-Cool?
-Correctamundo. And that\'s what we\'re gonna be. We\'re gonna be cool. Now, I\'m gonna count to three, and when I count three, you let go of your mouse, and back away from the keyboard. But when you do it, you do it cool. Ready? One... two... three.
User avatar
alpacas
Member
Member
Posts: 14
Joined: October 4th, 2012, 6:09 pm
Division: C
State: CA
Has thanked: 0
Been thanked: 0

Re: Astronomy C Question Marathon

Post by alpacas »

What mass range of stars can form Mira variables?
syo_astro
Exalted Member
Exalted Member
Posts: 615
Joined: December 3rd, 2011, 9:45 pm
Division: Grad
State: NY
Has thanked: 1 time
Been thanked: 19 times
Contact:

Re: Astronomy C Question Marathon

Post by syo_astro »

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 September 3rd, 2013, 8:22 pm, edited 1 time in total.
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)
Crazy Puny Man
Member
Member
Posts: 265
Joined: May 25th, 2013, 6:25 pm
Division: Grad
State: IN
Has thanked: 0
Been thanked: 0

Re: Astronomy C Question Marathon

Post by Crazy Puny Man »

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.
syo_astro
Exalted Member
Exalted Member
Posts: 615
Joined: December 3rd, 2011, 9:45 pm
Division: Grad
State: NY
Has thanked: 1 time
Been thanked: 19 times
Contact:

Re: Astronomy C Question Marathon

Post by syo_astro »

Crazy 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.
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 notes :P). 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
C: Microbe Mission, DyPlan (Fresh Waters), Fermi Questions, GeoMaps, Grav Vehicle, Scrambler, Rocks, Astro
Grad: Writing Tests/Supervising (NY/MI)
User avatar
alpacas
Member
Member
Posts: 14
Joined: October 4th, 2012, 6:09 pm
Division: C
State: CA
Has thanked: 0
Been thanked: 0

Re: Astronomy C Question Marathon

Post by alpacas »

I was going for 0.8 to 2 solar masses so I think those answers make sense
syo_astro
Exalted Member
Exalted Member
Posts: 615
Joined: December 3rd, 2011, 9:45 pm
Division: Grad
State: NY
Has thanked: 1 time
Been thanked: 19 times
Contact:

Re: Astronomy C Question Marathon

Post by syo_astro »

Good enough!

Next question, hopefully this isn't one of my...worst questions: What is the Baade-Wesselink method used to determine?
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)
User avatar
alpacas
Member
Member
Posts: 14
Joined: October 4th, 2012, 6:09 pm
Division: C
State: CA
Has thanked: 0
Been thanked: 0

Re: Astronomy C Question Marathon

Post by alpacas »

Its like the change in radius for pulsating variables right
syo_astro
Exalted Member
Exalted Member
Posts: 615
Joined: December 3rd, 2011, 9:45 pm
Division: Grad
State: NY
Has thanked: 1 time
Been thanked: 19 times
Contact:

Re: Astronomy C Question Marathon

Post by syo_astro »

alpacas wrote:Its like the change in radius for pulsating variables right
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.
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)
User avatar
alpacas
Member
Member
Posts: 14
Joined: October 4th, 2012, 6:09 pm
Division: C
State: CA
Has thanked: 0
Been thanked: 0

Re: Astronomy C Question Marathon

Post by alpacas »

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?
Locked

Return to “2014 Question Marathons”

Who is online

Users browsing this forum: No registered users and 2 guests