ELEMENT MASSES IN THE CRAB NEBULA
Journal Article
·
· Astronomical Journal (Online)
- Department of Physics and Astronomy, Trinity University, San Antonio, TX 78212 (United States)
Using our previously published element abundance or mass-fraction distributions in the Crab Nebula, we derived actual mass distributions and estimates for overall nebular masses of hydrogen, helium, carbon, nitrogen, oxygen and sulfur. As with the previous work, computations were carried out for photoionization models involving constant hydrogen density and also constant nuclear density. In addition, employing new flux measurements for [Ni ii] λ 7378, along with combined photoionization models and analytic computations, a nickel abundance distribution was mapped and a nebular stable nickel mass estimate was derived.
- OSTI ID:
- 22662956
- Journal Information:
- Astronomical Journal (Online), Journal Name: Astronomical Journal (Online) Journal Issue: 4 Vol. 152; ISSN 1538-3881
- Country of Publication:
- United States
- Language:
- English
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