Now showing items 1-10 of 30
Reaction-rates for Sm-146 production in supernovae
Correlations of the Nd-142/Nd-144 ratio with the Sm/Nd ratio in some meteorites have been previously explained by the alpha-decay of long-lived Sm-146. In order to account for these observations, a necessary production ...
A silicon micromachined device for use in blood cell deformability studies
An application of silicon micromachining to the analysis of blood cell theology is described. The system, based upon a micromachined flow cell, provides a specific measurement of each cell in a statistically significant ...
The Spectral Evolution of High-Frequency Radio Outbursts in the Blazar PKS:0420-014
Multifrequency monitoring data between 375 and 22 GHz are used to investigate spectral evolution of radio outbursts in the blazar 0420-014. It is shown that, after subtraction of the underlying `quiescent' emission, the ...
Multiwavelength Observations of Markarian 421 During a TeV/X-Ray Flare
A TeV flare from the BL Lac object Mrk 421 was detected in May of 1994 by the Whipple Observatory air Cherenkov experiment during which the flux above 250 GeV increased by nearly an order of magnitude over a 2-day period. ...
Study of short-lived silver isotopes with a laser ion-source
A chemically selective laser ion source based on resonance ionization of atoms in a hot cavity has been applied for the study of short-lived silver isotopes at CERN/ISOLDE. Silver atoms were ionized by two resonant excitations ...
Potential for recognition of airborne asbestos fibres from spatial laser scattering profiles
This Short Communication describes some preliminary results of research which seeks to develop a method by which individual airborne asbestos fibres may be detected in real-time within a contaminated environment. The method ...
Near-IR spectropolarimetry and modeling of NGC 1068
We present new spectropolarimetric data for NGC 1068, including, for the first time, coverage in the near-IR. Using these, and other previously published data, we develop a scattering model for NGC 1068, using NGC 5548 for ...
Shell effects in neutron capture on Pb
(American Institute of Physics, 1995)
Loophole-free test of the Bell inequality
An atomic cascade experiment is proposed that includes the detection of a recoil atom after the emission of two photons. This would permit testing of the Bell inequality without the need for additional assumptions, provided ...
A model for the infrared continuum spectrum of NGC 1068
We present a model for the nuclear infrared (IR) continuum spectrum of the Seyfert galaxy NGC 1068. The torus emission is modelled in terms of the tapered disc models of Efstathiou & Rowan-Robinson, which give a good fit ...