Element Distributions In The Crab Nebula
Abstract
We have obtained images of the Crab Nebula through interference filters passing the emission of Hβ, HeI λ5876, HeII λ4686, [CI] λλ9823,9850, [NII] λλ6548,6583, [OI] λλ6300,6364, [SII] λλ6716,6731, [SIII] λ9069, [NiII] λ7378, and the synchrotron continuum. After we registered the images and adjusted their point spread functions to be identical, they were flux calibrated and continuum subtracted. Then each pixel was compared to the output line emission for a grid of approximately 20,000 photoionization models with nested abundance ranges. We will present the resultant abundance or mass-fraction distribution maps for the elements He, C, N, O, S, and Ni.
- Publication:
-
American Astronomical Society Meeting Abstracts #219
- Pub Date:
- January 2012
- Bibcode:
- 2012AAS...21943923M