... The X-raybackground Xavier Barcons Instituto de Fsica de Cantabria (CSIC-UC), Spain The cosmic X-raybackground (XRB) above photon energies of 2 keV is known to be of extragalactic origin. ...
... Optical: Filaments to the NW, with broad H component. X-ray: Thermal shell, with non-thermal limb-brightened arcs. ... Point sources: The background Schweizer Middleditch star is near the middle of the remnant. ...
... Optical: Filaments to the NW, with broad H component. X-ray: Thermal shell, with non-thermal limb-brightened arcs. ... Point sources: The background Schweizer Middleditch star is near the middle of the remnant. ...
... Optical: Filaments to the NW, with broad H component. X-ray: Thermal shell, with non-thermal limb-brightened arcs. ... Point sources: The background Schweizer Middleditch star is near the middle of the remnant. ...
... Particle Physics and the Early Universe Conference . Structure in the Cosmic Microwave Background . Primordial Theory . ... A search for X-ray emission towards the SZ cluster candidate in the direction of the quasar pair PC1643+4631 : R. Kneissl . ...
... Optical: Filaments to the NW, with broad Halpha component. X-ray: Thermal shell, with non-thermal limb-brightened arcs. ... Point sources: The background Schweizer-Middleditch star is near the middle of the remnant. ...
... Optical: Filaments to the NW, with broad Halpha component. X-ray: Thermal shell, with non-thermal limb-brightened arcs. ... Point sources: The background Schweizer-Middleditch star is near the middle of the remnant. ...
... Optical: Filaments to the NW, with broad Halpha component. X-ray: Thermal shell, with non-thermal limb-brightened arcs. ... Point sources: The background Schweizer-Middleditch star is near the middle of the remnant. ...
... Optical: Filaments to the NW, with broad Halpha component. X-ray: Thermal shell, with non-thermal limb-brightened arcs. ... Point sources: The background Schweizer-Middleditch star is near the middle of the remnant. ...