An Internet Database of Ultraviolet Lightcurves for Seyfert Galaxies

Abstract

Using the Multimission Archives at Space Telescope (MAST), we have extracted spectra and determined continuum light curves for 175 Seyfert Galaxies that have been observed with the International Ultraviolet Explorer (IUE) and the Faint Object Spectrograph (FOS) on the Hubble Space Telescope (HST). To obtain the light curves as a function of Julian Date, we used fix bins in the object's rest frame, and measured small regions (between 30 and 60 Angstroms) of each spectrum's continuum flux in the range 1150 Angstroms to 3200 Angstroms. We provide access to the UV light curves and other basic information about the observations in tabular and graphical form via the Internet at http://www.chara.gsu.edu/PEGA/IUE/.

arXiv comment20 pages, 9 figures, 3 tables, accepted for publication in April 2006 PASP

References in corpus (3)

• Multiwavelength observations of short time-scale variability in NGC 4151. II. Optical observations
• Multiwavelength observations of short time-scale variability in NGC 4151. I. Ultraviolet observations
• Temporal characteristics of the X-ray emission of NGC 7469

Cited by in corpus (18)

• The Simultaneous Optical-to-X-ray Spectral Energy Distribution of Soft X-ray Selected AGN observed by Swift
• Emergence of a Broad-Absorption-Line Outflow in the Narrow-line Seyfert 1 Galaxy WPVS 007
• XMM-Newton observations of the Narrow-Line Seyfert 1 galaxy Mrk 335 in an historical low X-ray flux state
• Discovery of the Narrow-Line Seyfert 1 galaxy Mkn 335 in an historical low X-ray flux state
• A Survey of Intrinsic Absorption in Active Galaxies using the Far Ultraviolet Spectroscopic Explorer
• Intrinsic Absorption Properties in Active Galaxies Observed with the Far Ultraviolet Spectroscopic Explorer
• HST/COS observations of the newly discovered obscuring outflow in NGC 3783
• Discovery of an Ultraviolet Counterpart to an Ultra-Fast X-ray Outflow in the Quasar PG1211+143
• Lifting the curtain: The Seyfert galaxy Mrk 335 emerges from deep low-state in a sequence of rapid flare events
• The X-ray spectral signatures from the complex circumnuclear regions in the Compton thick AGN NGC 424
• The X-ray/UV absorber in NGC 4593
• An Update on the X-ray transient Narrow-Line Seyfert 1 galaxy WPVS 007: Swift observations of UV variability and persistence of X-ray faintness
• Optical Monitoring of 3C 390.3 from 1995 to 2004 and Possible Periodicities in the Historical Light Curve
• Observations of Outflowing UV Absorbers in NGC 4051 with the Cosmic Origins Spectrograph
• The story of Seyfert galaxy RE J2248-511: from intriguingly ultrasoft to unremarkably average
• Evolution of the Outflows in NGC 3516
• AGN STORM 2: I. First results: A Change in the Weather of Mrk 817
• Long term Ultra-Violet Variability of Seyfert galaxies