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astro-ph2001
The electron temperature of the inner halo of the Planetary Nebula NGC 6543
Siek Hyung, Garrelt Mellema, Seong-Jae Lee +1
We investigate the electron temperature of the inner halo and nebular core regions of NGC 6543, using archival Hubble Space Telescope (HST) Wide Field Planetary Camera 2 (WFPC2) im…
astro-ph2001
Multi-wavelength observations of serendipitous Chandra sources
P. Gandhi, C. S. Crawford, A. C. Fabian +4
We describe progress in a programme to study a sample of sources typical of those which contribute a large fraction of the hard X-ray background. The sources are selected from the…