A 20 cm Search for Pulsars in Globular Clusters with Arecibo and the GBT
We are conducting deep searches for radio pulsations at L-band (~ 20cm) towards more than 30 globular clusters using the
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A 20-cm Survey for Pulsars in Globular Clusters using the GBT and Arecibo
We have been conducting deep searches at ~20 cm of >30 globular clusters (GCs) using the 305-m Arecibo telescope in
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A Sensitive Targeted Search Campaign at Parkes to Find Young Radio Pulsars at 20 cm
We describe a sensitive targeted search campaign at Parkes to find faint young radio pulsars using the center beam of
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Big Bang Nucleosynthesis: Probing the First 20 Minutes
Within the first 20 minutes of the evolution of the hot, dense, early Universe, astrophysically interesting abundances of deuterium, helium-3,
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Cascades from $ν_e$ above $10^{20}$ eV
At very high energies, the Landau-Pomeranchuk-Migdal effect reduces the cross sections for electron bremsstrahlung and photon $e^+e^-$ pair production. The
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Coherent Pair Production by Photons in the 20-170 GeV Energy Range Incident on Crystals and Birefringence
The cross section for coherent pair production by linearly polarised photons in the 20-170 GeV energy range was measured for
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Comment on ``Violation of the Greisen-Zatsepin-Kuzmin Cutoff: A Tempest in a (Magnetic) Teapot? Why Cosmic Ray Energies above $10^{20}$ eV May Not Require New Physics''
In a recent letter [1] with the same title, Farrar and Piran offered an explanation for the near isotropy of
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`Comparing the Predicted Abell/ACO Cluster & the MarkIII Galaxy Density and Velocity Fields', Contribution to the Wide Field Spectroscopy Meeting held in Athens, 20-24 May 1996
We compare the predicted Abell/ACO cluster density and velocity fields, using linear theory, with that based on the MarkIII catalog
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First observation of spin dichroism with deuterons up to 20 MeV in a carbon target
The first observation of the phenomenom of deuteron spin dichroism in the energy region of 6-20 MeV is described. Experimental
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From 3K to $10^{20}$eV
The problem of predicting the upper cut-off of the cosmic ray spectrum is re-examined. Some aspects of extremely high energy
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Galaxy Redshift Surveys: 20 years later
This year marks the 20th anniversary of the effective beginning of large, systematic redshift surveys of galaxies. These surveys have
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Global Star Formation from z=5e-8 to z=20
Starting with the assertion that the problem of isolated, single star formation is essentially solved, this paper examines some of
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High p_T Phenomena in Heavy Ion Collisions at s^1/2=20 and 200 AGeV
Jet quenching as observed via high p_T hadron production is studied in the HIJING1.35 model. We test the model on
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High resolution images at 11 and 20 microns of the Active Galactic Nucleus in NGC 1068
We present diffraction-limited IR images at 11.2 and 20.5 microns of the central 6''x6'' region in NGC 1068, collected with
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Mass Composition of the Primary Cosmic Rays in the Energy Region 10^{14}-10^{20} eV in Anomalous Diffusion Model
We discuss the problem of cosmic ray mass composition variation in wide energy region 10^{14}-10^{20} eV. The mass composition predicted
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Non-axisymmetric wind-accretion simulations I. Velocity gradients of 3% and 20% over one accretion radius
We investigate the hydrodynamics of a variant of classical Bondi-Hoyle-Lyttleton accretion: a totally absorbing sphere moves at various Mach numbers
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Possible Explanation for $E > 10^{20}$ eV Air Showers with Flavour-Changing Neutral Currents
Air showers observed with $E > 10^{20}$ eV pose a problem since protons at such energies cannot survive a long
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Relic Neutrinos, Z-Bursts, and Cosmic Rays above 10^{20} eV
The observation of cosmic--ray events above the Greisen-Kuzmin-Zatsepin (GZK) cutoff of $\sim 5\times 10^{19}$ eV challenges orthodox modeling. We discuss
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Search for gamma-ray bursts above 20 TeV with the HEGRA AIROBICC Cherenkov array
A search for gamma-ray bursts (GRBs) above 20 TeV within the field of view (1 sr) of the HEGRA AIROBICC
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The AMS-02 RICH Imager Prototype - In-Beam Tests with 20 GeV/c per Nucleon Ions -
A prototype of the AMS Cherenkov imager (RICH) has been tested at CERN by means of a low intensity 20
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Tidal Tails Around 20 Galactic Globular Cluster: Observational Evidence for Gravitational Disk/Bulge Shocking
Large-field multi-color images of 20 galactic globular clusters are used to investigate the presence of tidal tails around these stellar
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Why a ring of stars at r = 20 kpc?
The recently discovered ring of stars near Galactocentric distance $r = 20$ kpc is interpreted as baryonic matter accreted onto
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Zero Zeros After All These (20) Years
We celebrate two birthdays connected with the radiation zero phenomenon. First, a striking dip in the theoretical angular distributions of
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Bose-Einstein Condensation Picture of Superconductivity in Ag2 (Ag3Pb2H2O6), Na0.05WO3 and Na0.041NH3 composites. (Dilute metals)
Traditionally, when one describes the crystallographic structure of oxides, the oxygen ion radius r02 is assumed to be approximately equal
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