activity
19982008
most citedSimultaneous X-ray and infrared variability in the quasar 3C273 II: Confirmation of the correlation and X-ray lag

25 citations · 40 across the 4 of their papers we have counts for

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Showing 1998Show all

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astro-ph1998

EUVE-RXTE simultaneous observations of NGC 4051: variability and spectrum

I. Cagnoni, A. Fruscione, I. M. McHardy +1

We present timing and spectral analysis of the data collected by the Extreme Ultraviolet Explorer Satellite (EUVE) for the Seyfert 1 galaxy NGC 4051 during 1996. NGC 4051 was obser…

astro-ph1998

Ultraviolet Isotropic Emission from the Blazar 3C 279

E. Pian, A. Koratkar, L. Maraschi +7

Archival IUE SWP and HST FOS spectra show the presence of a relatively strong, broad Lyman alpha emission line superposed onto the UV spectral continuum of the blazar 3C 279. As op…