A Gamma-Ray Burst Mission to Investigate the Properties of Dark Energy
[Abridged] Very recently, relations between the peak energy of Gamma-Ray Burst burst spectra, the isotropic-equivalent energy of the burst, and
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A Lattice Spanning-Tree Entropy Function
The function $$W(aq,b)=\int\int_0^{2π}\ln[1-a\cos x-b\cos y-(1-a-b)\cos(x+y)]dxdy$$ which expresses the spanning-tree entropy for various two dimensional lattices, for example, is evaluated directly
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Anomalous magnetic moment and Lamb shift in the second order of the perturbation theory with finite electron mass renormalization in quantum electrodynamics
The paper determines the anomalous magnetic moment and Lamb energy level shift in the second order of the perturbation theory
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An X-ray Galaxy Cluster Survey for Investigations of Dark Energy
The amount and nature of dark energy (DE) can be tightly constrained by measuring the spatial correlation features and evolution
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Application of the Variability -> Luminosity Indicator to X-Ray Flashes
We have applied the proposed variability -> luminosity indicator to ten "X-Ray Flashes" (XRFs) observed by the Wide-Field Cameras on
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A Search for TeV Emission from Unidentified Sources in the Galactic Plane
The ~70 unidentified sources of the EGRET sky survey may be one of its most important legacies. The identification of
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Astrometric Calibration and Estimate of the Systematic Error in WXM Localizations Obtained by the Chicago Bayesian Method
WXM gives GRB localizations in instrument coordinates. WXM localizations must be converted to celestial coordinates using spacecraft aspect information obtained
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A Unified Jet Model of X-Ray Flashes, X-ray Rich GRBs and GRBs
HETE-2 has provided strong evidence that the properties of X-Ray Flashes (XRFs) and GRBs form a continuum, and therefore that
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Comment on "The Lamb Shift and Ultra High Energy Cosmic Rays" and Comment on "Vacuum Polarization Energy Losses of High Energy Cosmic Rays"
The cosmic rays spectrum has been shown to extend well beyond 10^20 eV. With nearly 20 events observed in the
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Constraints on Cosmic-Ray Origin Theories from TeV Gamma-Ray Observations
If supernova remnants (SNRs) are the sites of cosmic-ray acceleration, the associated nuclear interactions should result in observable fluxes of
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Constraints on neutron star matter from kilohertz QPOs
One of the most dramatic discoveries made so far with the Rossi X-Ray Timing Explorer is that many accreting neutron
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Corrections to Hyperfine Splitting and Lamb Shift Induced by the Overlapping Two-Loop Electron Self-Energy Insertion in the Electron Line
Contributions to HFS and to the Lamb shift intervals of order $α^2(Zα)^5$ induced by the graph with the two-loop overlapping
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Discovery of 800 Hz QPO in 4U1608-52
We present results of RXTE observations of the low-mass X-ray binary and atoll source 4U 1608$-$52 made over 9 days
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Early-type galaxies in the SDSS
A sample of nearly 9000 early-type galaxies, in the redshift range 0.01<z<0.3, was selected from the Sloan Digital Sky Survey
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Eccentric orbits and QPOs in neutron star X-ray binaries
We investigate the suggestion that the frequencies of the kilohertz and other QPOs in the emission from neutron stars in
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Evidence Against an Association Between Gamma-Ray Bursts and Type I Supernovae
We use a rigorous method, based on Bayesian inference, for calculating the odds favoring the hypothesis that any particular class
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Evidence for TeV gamma ray emission from TeV J2032+4130 in Whipple archival data
A reanalysis of data taken on the Cygnus region in 1989-90 using the Whipple Observatory atmospheric Cherenkov imaging telescope confirms
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First Results from a Search for TeV Emission from BL Lacs
Two active galactic nuclei have been detected at TeV energies using the atmospheric Cherenkov imaging technique. The Whipple Observatory gamma-ray
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Galaxy Collisions and Star Formation
We present a brief overview of some recent observations of colliding galaxies and relevant numerical simulations. These are compared, and
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Gamma-Ray Bursts as a Laboratory for the Study of Type Ic Supernovae
HETE-2 has confirmed the connection between GRBs and Type Ic supernovae. Thus we now know that the progenitors of long
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Gamma-Ray Bursts as a Probe of the Epoch of Reionization
GRBs are expected to occur at redshifts far higher than the highest quasar redshifts so far detected. And unlike quasars,
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GRB010921: Localization and Observations by the HETE Satellite
On September 21 at 18950.56 SOD (05:15:50.56) UT the FREGATE gamma-ray instrument on the High Energy Transient Explorer (HETE) detected
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GRB 020531: A Short, Hard Gamma-Ray Burst Localized and Observed by HETE-2
The HETE-2 FREGATE and WXM instruments detected a short, hard GRB at 00:26:18.72 UT on 31 May 2002. A preliminary
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GRO J1744-28: Last Gasps of a Dying Low-mass X-ray Binary
We argue that the bursting, transient X-ray source GRO J1744-28 is a binary consisting of a very low-mass ($M \approx
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