Recent content by Radu094
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Graduate Solar flares triggering seismic events
Well, given the way earthquakes work, someone will eventually argue that some butterfly landing on a specific rock caused the whole thing. On an unrelated note, I have spent most of this morning convincing people that 'an unusually low lunar perigee' is not the cause for the disaster in Japan...- Radu094
- Post #6
- Forum: Astronomy and Astrophysics
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Graduate The eccentricity of binary stars' orbits
Well, the planet's orbit will have to be stable enough to be an ellipse, which assumes it's quite far away from the apoapsis distance of the stars (AFAIRemember >12*a). Anyway, a circumbinary orbit should have it's Kepler elements defined w.r.t the binary system's barycenter.- Radu094
- Post #8
- Forum: Astronomy and Astrophysics
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Graduate Total radiation flux from a star
Any way I can realistically quantify this given the specs for a star and a distance? Something that wouldn't be pure guesswork? I understand there will be a lot of fudge-factors and unknown constants but the general trend will suffice. Heck, even a general 2D diagram will do. I guess what I...- Radu094
- Post #5
- Forum: Astronomy and Astrophysics
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Undergrad Why is there a universal speed limit, c, and why is it what it is?
Well, like bcrowell was saying, when asking 'why' questions, you inevitably end-up with a sequence like: Why is 'A' true? Because 'B' is true. Well, then why is 'B' true? Because 'C' is true. Well, then why is 'C' true? ... and you can do this for a long time until the answer comes back as...- Radu094
- Post #11
- Forum: Special and General Relativity
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Graduate Total radiation flux from a star
Hmm...enlightning! So the Stefan Boltzmann should account for most of the radiation coming out from a star? How about estimating the magnetic field strength? I would assume that depends on the rotation of the star? Is there any current way of determining the rotation of observable stars? Or...- Radu094
- Post #3
- Forum: Astronomy and Astrophysics
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Graduate Total radiation flux from a star
Hi all ! I'm looking around the net to find good resources on how to compute total radiation flux from a given star at a given orbiting distance. Ideally I'd like to get not just the W/m2 of the star, but also the expected high-energy radiation, thermal, solar wind pressure.. well, the...- Radu094
- Thread
- Flux Radiation Star
- Replies: 4
- Forum: Astronomy and Astrophysics