132,655 research outputs found
Time variations of the narrow FeII and HI spectral emission lines from the close vicinity of Eta Carinae during the spectral event of 2003
The spectrum of Eta Carinae and its ejecta shows slow variations over a
period of 5.5 years. However, the spectrum changes drastically on a time scale
of days once every period called the 'spectral event'. We report on variations
in the narrow emission line spectrum of gas condensations (the Weigelt blobs)
close to the central star during a spectral event. The rapid changes in the
stellar radiation field illuminating the blobs make the blobs a natural
astrophysical laboratory to study atomic photoprocesses. The different
responses of the HI Paschen lines, fluorescent lines and forbidden
[FeII] lines allow us to identify the processes and estimate physical
conditions in the blobs. This paper is based on observations from the Pico dos
Dias Observatory (LNA/Brazil) during the previous event in June 2003.Comment: Accepted for publication in A&
Self Interference of Single Electrodynamic Particle in Double Slit
It is by the long established fact in experiment and theory that
electromagnetic waves, here as one component of an IED particle, passing a
double slit will undergo self inference each, producing at a detector plane
fringed intensities. The wave generating point charge of a zero rest mass, as
the other component of the particle, is maintained a constant energy and speed
by a repeated radiation reabsorption/reemission scheme, and in turn steered in
direction in its linear motion by the reflected radiation field, and will
thereby travel to the detector along (one of) the optical path(s) of the waves
leading to a bright interference fringe. We elucidate the process formally
based on first principles solutions for the IED particle and known principles
for wave-matter interaction.Comment: Presentation at The 6th Int. Symp. Quantum Theory and Symmetries,
Univ. Kent, 2009
Discrete polynuclear growth and determinantal processes
We consider a discrete polynuclear growth (PNG) process and prove a functioal
limit theorem for its convergrence to the Airy process. This generalizes
previous results by Pr"ahofer and Spohn. The result enables us to express the
GOE largest eigenvalue (Tracy-Widom) distribution in terms of the Airy process.
We also show some results and give a conjecture about the transversal
fluctuations in a point to line last passage percolation problem.Comment: In the new version some parts have been replaced, new material has
beeb added and errors correcte
Origin of Mass. Mass and Mass-Energy Equation from Classical-Mechanics Solution
We establish the classical wave equation for a particle formed of a massless
oscillatory elementary charge generally also traveling, and the resulting
electromagnetic waves, of a generally Doppler-effected angular frequency \w,
in the vacuum in three dimensions. We obtain from the solutions the total
energy of the particle wave to be \eng=\hbarc\w, 2\pi \hbarc being a
function expressed in wave-medium parameters and identifiable as the Planck
constant. In respect to the train of the waves as a whole traveling at the
finite velocity of light , \eng=mc^2 represents thereby the translational
kinetic energy of the wavetrain, m=\hbarc\w/c^2 being its inertial mass and
thereby the inertial mass of the particle. Based on the solutions we also write
down a set of semi-empirical equations for the particle's de Broglie wave
parameters. From the standpoint of overall modern experimental indications we
comment on the origin of mass implied by the solution.Comment: 13 pages, no figure. Augmented introductio
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