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Energy spectrum of cosmic-ray electrons at TeV energies.
- F. Aharonian, A. Akhperjanian, A. Zech
- PhysicsPhysical review letters
- 24 November 2008
TLDR
Multiwavelength tests of the dusty torus model for Seyfert galaxies
- J. Mulchaey, A. Koratkar, T. Hurt
- Physics
- 1 December 1994
We present a compilation of emission properties for a sample of 116 Seyfert galaxies based on both previously unpublished data and measurements available in the literature. These measurements include…
An atlas of mid-infrared spectra of galaxy nuclei
- P. Roche, D. Aitken, Craig Smith, M. Ward
- Physics
- 15 February 1991
The spectral energy distributions are presented for 60 galaxies for which 8-13 μm, and in some cases 17-23 μm, spectra have been obtained. These IR bright galaxies are discussed in terms of their…
Intrinsic disc emission and the soft X‐ray excess in active galactic nuclei
Narrow-line Seyfert 1 (NLS1) galaxies have low-mass black holes and mass accretion rates close to (or exceeding) Eddington, so a standard blackbody accretion disc should peak in the extreme…
A periodicity of ∼1 hour in X-ray emission from the active galaxy RE J1034+396
- M. Gierliński, M. Middleton, M. Ward, C. Done
- PhysicsNature
- 18 September 2008
TLDR
Ultraluminous X-Ray Sources in External Galaxies
- A. King, M. Davies, M. Ward, G. Fabbiano, M. Elvis
- Physics
- 20 April 2001
We investigate models for the class of ultraluminous nonnuclear X-ray sources (i.e., ultraluminous compact X-ray sources [ULXs]) seen in a number of galaxies and probably associated with star-forming…
Fast Variability of TeraElectron Volt γ Rays from the Radio Galaxy M87
- F. Aharonian, A. Akhperjanian, M. Ward
- PhysicsScience
- 1 December 2006
TLDR
A combined Optical and X-ray Spectra Study for Type 1 AGN. III. Broadband SED Properties
In this third paper in a series of three, we present a detailed study of the AGN broadband SED based on a nearby unobscured Type 1 AGN sample. We perform a systematic cross-correlation study of the…
The Near-Infrared Broad Emission Line Region of Active Galactic Nuclei. I. The Observations
- H. Landt, M. Bentz, M. Karovska
- Physics
- 8 August 2007
We present high-quality (high signal-to-noise ratio and moderate spectral resolution) near-infrared (near-IR) spectroscopic observations of 23 well-known broad emission line active galactic nuclei…
The Orbital Period of the Wolf-Rayet Binary IC 10 X-1: Dynamic Evidence that the Compact Object Is a Black Hole
- A. Prestwich, R. Kilgard, M. Ward
- Physics
- 18 September 2007
IC 10 X-1 is a bright (LX = 1038 ergs s-1) variable X-ray source in the Local Group starburst galaxy IC 10. The most plausible optical counterpart is a luminous Wolf-Rayet star, making IC 10 X-1 a…
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