Optical spectroscopy of galaxies in the direction of the Virgo cluster
Optical spectroscopy of 76 galaxies, 48 of which are projected in the direction of the Virgo cluster and 28 onto
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Palomar-QUEST: A case study in designing sky surveys in the VO era
The advent of wide-area multicolour synoptic sky surveys is leading to data sets unprecedented in size, complexity and data throughput.
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Performance of the STACEE Atmospheric Cherenkov Telescope
The Solar Tower Atmospheric Cherenkov Effect Experiment (STACEE) is located at the National Solar Thermal Test Facility of Sandia National
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Proper motion and membership determination in the young open cluster NGC1662
Relative proper motions and cluster membership probabilities of 30 stars within an area of 14' of diameter centered in the
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Quasars as bubbles of dark matter: evidence for axion and tachyon matter in the Universe
Growing amount of data show evidence for statistical and apparent physical association between low-redshift galaxies and high-redshift quasi-stellar objects, suggesting
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Radiative processes for Rindler and accelerating observers and the stress-tensor detector
We consider a monopole detector interacting with a massive scalar field. The radiative processes are discussed from the accelerated frame
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Reducing the flexing of the arms of LISA
The joint NASA-ESA mission LISA relies crucially on the stability of the three spacecraft constellation. All three spacecraft are on
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Reverberation Measurements of Quasars and the Size-Mass-Luminosity Relations in Active Galactic Nuclei
A 7.5 years spectrophotometric monitoring program of 28 Palomar-Green quasars to determine the size of their broad emission line region
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Serendipitous Discovery of a BAL QSO at z = 2.169
We report the serendipitous discovery of a BAL QSO at z = 2.169, located 41'' southwest of 3C 48. We
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Solving the phase problem in i(AlPdMn)
We apply a new technique for ab initio phase determination [Acta Crystallogr. Sect. A, A55, 48 (1999)] to solve for
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STIS Spectroscopy of PKS 0405-123
We present results for QSO PKS 0405-123 (z=0.574, V=14.9), as part of a STIS Investigation Definition Team (IDT) key project
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Subdwarf B binaries in the Edinburgh-Cape Survey
We give an update of the results of a campaign to obtain orbital solutions of subdwarf B stars from the
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Supershells and the closest GRB remnants
Following recent suggestions of a gamma-ray burst origin of large ISM holes (supershells) detected in the galaxy, we discuss the
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The afterglow and complex environment of the optically dim burst GRB 980613
We report the identification of the optical afterglow of GRB 980613 in R- and I-band images obtained between 16 and
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The beryllium abundance in the very metal-poor halo star G 64-12 from VLT/UVES observations
We report on a new spectroscopic analysis of the very metal deficient star G 64-12 ([Fe/H]=-3.3), aimed at determining, for
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The gamma-ray burst of 980425 and its association with the extraordinary radio emission from a most unusual supernova
Supernova SN 1998bw exploded in the same direction and at the same time as the gamma-ray burst GRB 980425. Here
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The Hubble Constant from Gravitational Lens Time Delays
There are now 10 firm time delay measurements in gravitational lenses. The physics of time delays is well understood, and
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The late afterglow and host galaxy of GRB 990712
We present deep HST imaging, as well as ground-based imaging and spectroscopy, of the optical afterglow associated with the long-duration
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Theory of Magnetocrystalline Anisotropy Energy for Wires and Corrals of Fe adatoms: A Non-Perturbative Theory
The magnetocrystalline anisotropy energy $E_{anis}$ for free-standing chains (quantum wires) and rings (quantum corrals) of Fe-adatoms $N=$(2...48) is determined using
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The shortest path to complex networks
1. The birth of network science. 2. What are random networks? 3. Adjacency matrix. 4. Degree distribution. 5. What are
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The STACEE Project
The Solar Tower Atmospheric Cherenkov Effect Experiment (STACEE) is a telescope designed to explore the gamma-ray sky between 20 and
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The Young Stellar Group Associated with HD 199143
Recently, several groups of young stars in the solar neighborhood have been discovered. Given their proximity, these systems are ideally
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Variability and Velocity of Superluminal Sources
We investigate the relation between the Doppler factor determined from variations in total flux at 22 and 37 GHz, and
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Velocity structure of the dwarf galaxy population in the Centaurus cluster
Based on the photometric survey of the inner region of the Centaurus cluster (Jerjen & Dressler 1997a) we measured redshifts
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