1,562 indexed results
We present subarcsecond resolution imaging and spectroscopy of the BL Lac object 1ES 1741+196 and neighboring galaxies. Based on 2-dimensional
We examine the 24 micron to X-ray color of 157 X-ray--selected AGN as a function of X-ray obscuration and optical
With approximately 6000 QSO redshifts,the 2dF QSO redshift survey is already the biggest complete QSO survey. The aim for the
We show that in dilute metallic p-SiGe heterostructures, magnetic field can cause multiple quantum Hall-insulator-quantum Hall transitions. The insulating states
A deep survey of the European Large Area ISO Survey (ELAIS) field in the southern celestial hemisphere (hereinafter S1) has
We analyze HST/GHRS spectra of AB Doradus, the prototypical ultra-rapidly rotating K dwarf. We observed chromospheric (Mg II) and transition
We have measured the temperature dependence of gap features revealed by Andreev reflection Delta_s and by tunneling Delta in the
We have systematically investigated the magnetic, electrical, and structural properties of RuSr2GdCu2O8, in which a long-range ferromagnetic order and superconductivity
An inelastic neutron scattering experiment has been performed in the high-temperature superconductor $\rm YBa_2Cu_3O_{6.89}$ to search for an oxygen-isotope shift
Based on a simple, but fairly successful, model of the chemical evolution of the Milky Way disk, we study the
The first VLBI images of water maser emission in the Circinus Galaxy AGN show both an accretion disk and outflow
The first VLBI images of water maser emission in the Circinus Galaxy AGN show both a warped, edge-on accretion disk
We report simultaneous observations in the X-ray, infrared, and radio wavelengths of the galactic superluminal source GRS 1915+105. During episodes
We have obtained adaptive optics images and accurate radial velocities for 7 very low mass systems, in the course of
We present very accurate orbital parameters and mass measurements (2.4% accuracy) for the well known very low mass triple system
We present improved visual and near-infrared empirical mass-luminosity relations for very low mass stars (M$<$0.6~\Msol). These relations make use of
The Hubble Space Telescope is being used to measure accurate Cepheid distances to nearby galaxies with the ultimate aim of
Using the Chandra ACIS-I instruments, we have carried out a deep X-ray observation on the Galactic plane region at (l,b)
We have developed a general data reduction technique for ISOCAM data coming from various deep surveys of faint galaxies. In
The goal of the second flight of the Medium Scale Anisotropy Measurement (MSAM1-94) was to confirm the measurement of cosmic
We describe a robust approach for linking already existing lexical/semantic hierarchies. We use a constraint satisfaction algorithm (relaxation labelling) to
In this survey we have systematically mapped 63 cloud cores in the CS J = 5 -> 4 line towards
A phenomenological theory to describe the electromagnetic properties of granular superconductors, based on known bulk superconductors expressions and conventional Josephson's
In this addendum we introduce the concept of time-inversion referencing. This is an extension of hypertext allowing authors to cite