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The Swift gamma-ray burst mission
The Swift mission, scheduled for launch in 2004, is a multiwavelength observatory for gamma-ray burst astronomy. Expand
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Evolutionary Processes in Close Binary Systems
The structure and evolution of the stars constitute one of the main prob­ lems of modern astrophysics. Binary stars are so common that it is not pos­ sible to develop a comprehensive theory ofExpand
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Gravitational microlensing by the galactic halo
A simple model of microlensing by massive objects that might be present in the halo of the Galaxy is presented. It is shown that in any nearby galaxy one star out of a million is strongly microlensedExpand
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A model of accretion disks in close binaries.
The simple periodic orbits of a test particle in the restricted three-body problem are a very good approximation to the streamlines in the accretion disk with a very small pressure and viscosity. TheExpand
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Discovery of a cool planet of 5.5 Earth masses through gravitational microlensing
In the favoured core-accretion model of formation of planetary systems, solid planetesimals accumulate to build up planetary cores, which then accrete nebular gas if they are sufficiently massive.Expand
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Transient Events from Neutron Star Mergers
Mergers of neutron stars (NS + NS) or neutron stars and stellar-mass black holes (NS + BH) eject a small fraction of matter with a subrelativistic velocity. Upon rapid decompression, nuclear-densityExpand
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Gamma-ray bursters at cosmological distances
It is proposed that some, perhaps most, gamma-ray bursters are at cosmological distances, like quasars, with a redshift of about 1 or 2. This proposition requires a release of supernova-like energyExpand
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A test of the galactic origin of gamma-ray bursts
Models in which gamma-ray bursters are young neutron stars may be difficult to reconcile with the apparently isotropic distribution of observed bursts. To justify this statement, the distribution ofExpand
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The Optical Gravitational Lensing Experiment. The Optical Depth to Gravitational Microlensing in the Direction of the Galactic Bulge
We present the analysis of the first two years of the OGLE search for gravitational lenses towards the Galactic bulge. We detected 9 microlensing events in an algorithmic search of $ \sim 10^8 $Expand
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Gamma-ray bursts as the death throes of massive binary stars
We propose that gamma-ray bursts are created in the mergers of double neutron star binaries and black hole neutron star binaries at cosmological distances. Two different processes provide theExpand
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