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- W1555523919 abstract "The Seyfert galaxy NGC 7469 has been observed with both the OSSE instrument on the Compton Observatory at hard x-ray energies, and with both the PCA and HEXTE detectors on the Rossi XTE satellite. The OSSE spectral data were combined with ASCA and Ginga spectra. The combined spectrum is largely consistent with a Compton reflection model, with a weakly constrained exponential cutoff above 50 keV. Significant flux variability was observed in the x-ray data, and the XTE data are being used to better under- stand the combined x-ra and gamma ray spectrum. and to measure spectral and flux variability with greater accuracy. At the present time, background subtraction uncertainty in the XTE data is still being refined, which is limiting the study of time variability. Work has recently been slowed bN, my participation in the launch and operations of the Chandra Observatory." @default.
- W1555523919 created "2016-06-24" @default.
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- W1555523919 date "1999-11-01" @default.
- W1555523919 modified "2023-09-26" @default.
- W1555523919 title "A Combined X-Ray and Gamma Ray Study of the Seyfert Galaxies NGC 7469 and NGC 3227" @default.
- W1555523919 hasPublicationYear "1999" @default.
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