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21 papers · 1 filter
Discovery of >350 GeV Gamma Rays from the BL Lacertae Object 1ES 2344+514
M. Catanese, C. W. Akerlof, H. M. Badran +31
We present the discovery of >350 GeV gamma-ray emission from the BL Lacertae object 1ES 2344+514 with the Whipple Observatory 10m gamma-ray telescope. This is the third BL Lac obje…
A study of the quenched bc mass spectrum at beta=6.2
C. T. H. Davies, A. J. Lidsey, H. P. Shanahan
We present an analysis of the mass spectrum of heavy quarkonia with non-degenerate quark masses. The heavier (bottom) valence quark is treated in a non-relativistic fashion and the…
Jet-cloud interations and the brightening of the narrow line region in Seyfert galaxies
W. Steffen, J. L. Gomez, A. C. Raga +1
We study the kinematical and brightness evolution of emission line clouds in the narrow line region (NLR) of Seyfert galaxies during the passage of a jet. We derive a critical dens…
Microscopic Viscoelasticity: Shear Moduli of Soft Materials Determined from Thermal Fluctuations
F. Gittes, B. Schnurr, P. D. Olmsted +2
We describe a high-resolution, high-bandwidth technique for determining the local viscoelasticity of soft materials such as polymer gels. Loss and storage shear moduli are determin…
A Simple New Method For Analysing Gapped Time-Series: Search For a High Frequency Cut-off In The X-ray Power Spectrum of MCG -6-30-15
T. Yaqoob, B. McKernan, A. Ptak +2
We present a new, simple method for analysing gapped time-series which is particularly suited to probe the X-ray power spectra of active galactic nuclei (AGN).The method is applied…
Multiwavelength Observations of a Flare from Markarian 501
M. Catanese, S. M. Bradbury, A. C. Breslin +23
We present multiwavelength observations of the BL Lacertae object Markarian 501 (Mrk 501) in 1997 between April 8 and April 19. Evidence of correlated variability is seen in very h…