4 ms·
Great question! Since they're emanated in jets, the GRBs travel in a conical shape that spreads out as it travels. Check out page 19 of this paper, it has a hi
by acadien 12y ago
Great question! Since they're emanated in jets, the GRBs travel in a conical shape that spreads out as it travels. Check out page 19 of this paper, it has a histogram of the jet opening angle;
http://arxiv.org/pdf/1101.2458.pdf http://arxiv.org/pdf/1101.2458.pdf
Then you can figure out the flux from the area of a circle on a sphere, which is something like
2πr^2(1−cosθ)
Where theta is the opening angle and r is the distance from point of emanation of the GRB.
- austinz 12y agoThanks for the paper link! I'll check it out. (The histogram legend seems to indicate two distributions of observed GRBs, the larger centered around 8 degree cones.)
- jbert 12y agoDo you know if there is any bias to the orientation of the jets? e.g. in a spiral galaxy, do they tend to align with the axis of rotation and so do less damage locally (spray out "up and down" from the galaxy)?
- jjaredsimpson 12y agojets are randomly oriented with no preferred orientation.