Add to ORKGThe Crab Nebula is marginally observable with the IUE. Observations of the optically brightest filamentary regions, made with IUE in August 1979, show the C IV x1549, He II x1640, and C III] x1909 emission lines. The intensities of these lines have been compared with visual-wavelength data. It appears that carbon is not overabundant in the Crab; carbon/- oxygen is approximately normal oxygen is slightly scarcer than normal as a fraction of the total mass.https://digitalcommons.chapman.edu/scs_books/1005/thumbnail.jp
The results of four years of observation of the Crab Nebula at TeV energies by the Whipple group are...
We present and discuss correlations for optical and near-infrared (5500-10030 angstroms) line intens...
We present new observations and photoionization calculations for investigating gaseous regions that ...
The Crab Nebula is marginally observable with the IUE. Observations of the optically brightest filam...
The Crab Nebula is marginally observable with the IUE. Observations of the optically brightest filam...
The Crab Nebula is marginally observable with the IUE. Observations of the optically brightest filam...
Data from 65 hours of observation of the Crab Nebula with the International Ultraviolet Explorer are...
The Crab Nebula is the remnant of a supernova event which occurred in 1054 AD. Because of its relati...
The Crab Nebula is the remnant of a supernova event which occurred in 1054 AD. Because of its relati...
Long-slit spectra of two peripheral regions around the Crab Nebula show no H(alpha) emission down to...
Observations of the Crab nebula are described, which were made under the OAO 2/NASA guest-investigat...
We present a range of steady-state photoionization simulations, corresponding to different assumed s...
The elemental abundances remaining in the nebula surrounding a neutron star provide insight into the...
Narrowband images of the Crab Nebula taken with the Hubble Space Telescope (HST) WFPC2 show the morp...
Narrowband images of the Crab Nebula taken with the Hubble Space Telescope (HST) WFPC2 show the morp...
The results of four years of observation of the Crab Nebula at TeV energies by the Whipple group are...
We present and discuss correlations for optical and near-infrared (5500-10030 angstroms) line intens...
We present new observations and photoionization calculations for investigating gaseous regions that ...
The Crab Nebula is marginally observable with the IUE. Observations of the optically brightest filam...
The Crab Nebula is marginally observable with the IUE. Observations of the optically brightest filam...
The Crab Nebula is marginally observable with the IUE. Observations of the optically brightest filam...
Data from 65 hours of observation of the Crab Nebula with the International Ultraviolet Explorer are...
The Crab Nebula is the remnant of a supernova event which occurred in 1054 AD. Because of its relati...
The Crab Nebula is the remnant of a supernova event which occurred in 1054 AD. Because of its relati...
Long-slit spectra of two peripheral regions around the Crab Nebula show no H(alpha) emission down to...
Observations of the Crab nebula are described, which were made under the OAO 2/NASA guest-investigat...
We present a range of steady-state photoionization simulations, corresponding to different assumed s...
The elemental abundances remaining in the nebula surrounding a neutron star provide insight into the...
Narrowband images of the Crab Nebula taken with the Hubble Space Telescope (HST) WFPC2 show the morp...
Narrowband images of the Crab Nebula taken with the Hubble Space Telescope (HST) WFPC2 show the morp...
The results of four years of observation of the Crab Nebula at TeV energies by the Whipple group are...
We present and discuss correlations for optical and near-infrared (5500-10030 angstroms) line intens...
We present new observations and photoionization calculations for investigating gaseous regions that ...