Abstract
view Abstract Citations (8) References (17) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Search for thermal X-ray line emission from the Crab Nebula. Kestenbaum, H. L. ; Wolff, R. S. ; Long, K. S. ; Novick, R. ; Weisskopf, M. C. Abstract Observations of the Crab Nebula from 1.85 to 8 keV obtained with the large-area graphite crystal spectrometer on OSO-8 show a smooth featureless continuum with an absence of X-ray emission lines from highly ionized Si and S. Upper limits on the line emission are used to derive an upper limit to the emission measure for a thermal source associated with the Crab Nebula. Existing evidence for an extended thermal source is discussed, and it is shown that the evidence is not contradicted by the upper limits set with the spectrometer data. Publication: The Astrophysical Journal Pub Date: August 1977 DOI: 10.1086/182502 Bibcode: 1977ApJ...216L..27K Keywords: Crab Nebula; Supernova Remnants; Thermal Emission; X Ray Spectra; Astronomical Spectroscopy; Emission Spectra; High Temperature Plasmas; Oso-8; Plasma Spectra; Astronomy full text sources ADS |
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
