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- W2075573026 abstract "view Abstract Citations (40) References (22) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS X-Ray Emission from the Supernova Remnant CTA 1 Seward, F. D. ; Schmidt, B. ; Slane, P. Abstract Three pointings of the ROSAT PSPC have been used to map the X-ray emission of CTA 1. Emission is brightest at the center and extends in all directions to the boundaries of the remnant. The luminosity is model-dependent and (at 1.4 kpc), is, LX(0.1 24 keV) = 5-8 x 1034 ergs s-1. Emission from the center is harder and considerably brighter than that from the rim. Spectra from several parts of the remnant are fitted with two component models. Both a two-temperature thermal model and a model consisting of a power law and a soft thermal component produce good fits to all regions. The spectra do not allow us to distinguish between a remnant with hot evaporated material at the center, or an old Crab-like remnant. Both are plausible models for CTA 1. The ROSAT HRI was used to obtain an accurate location of a bright unresolved source within the remnant. This is identified as a background active galactic nucleus. Properties of eight weaker, unresolved X-ray sources within or nearby the remnant are tabulated. Publication: The Astrophysical Journal Pub Date: November 1995 DOI: 10.1086/176388 Bibcode: 1995ApJ...453..284S Keywords: GALAXIES: SEYFERT; ISM: INDIVIDUAL ALPHANUMERIC: CTA 1; ISM: SUPERNOVA REMNANTS; X-RAYS: ISM full text sources ADS | data products SIMBAD (14) NED (2) HEASARC (1)" @default.
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- W2075573026 date "1995-11-01" @default.
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- W2075573026 title "X-Ray Emission from the Supernova Remnant CTA 1" @default.
- W2075573026 doi "https://doi.org/10.1086/176388" @default.
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