A Model of the Temporal Variability of Optical Light from Extrasolar Terrestrial Planets
The light scattered by an extrasolar Earth-like planet's surface and atmosphere will vary in intensity and color as the planet
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A search for clusters at high redshift - II. A proto cluster around a radio galaxy at z=2.16
VLT spectroscopic observations of Ly alpha--excess objects in the field of the clumpy radio galaxy 1138-262 at z=2.16 have led
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BeppoSAX Observations of the Atoll X-Ray Binary 4U0614+091
We report the first simultaneous measurement of the broad band X-ray (0.3-150 keV) spectrum of the neutron star x-ray binary
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Calibration of Geometric Distortion in the ACS Detectors
The off-axis location of the Advanced Camera for Surveys (ACS) is the chief (but not sole) cause of strong geometric
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Choice of Observing Schedules for Astrometric Planet Searches
The Space Interferometry Mission (SIM) will make precise astrometric measurements that can be used to detect planets around nearby stars.
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Discovery of a kHz QPO in 2S 0918-549
We report the discovery of a kilohertz quasi-periodic oscillation (kHz QPO) in the low-mass X-ray binary (LMXB) 2S 0918-549. The
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Discovery of water vapor around IRC+10216 as evidence for comets orbiting another star
Since 1995, astronomers have discovered planets with masses comparable to that of Jupiter (318 times Earth's mass) in orbit around
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Dynamical Instabilities in Extrasolar Planetary Systems
Instabilities and strong dynamical interactions between multiple giant planets have been proposed as a possible explanation for the surprising orbital
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Dynamical Instabilities in Extrasolar Planetary Systems Containing Two Giant Planets
Instabilities and strong dynamical interactions between several giant planets have been proposed as a possible explanation for the surprising orbital
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Extragalactic Planetary Nebulae
Planetary nebulae (PNe) can be used to trace intermediate and old stellar populations in galaxies and the intracluster medium out
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HST/ACS Coronagraphic Imaging of the AU Microscopii Debris Disk
We present {\it Hubble Space Telescope} Advanced Camera for Surveys multicolor coronagraphic images of the recently discovered edge-on debris disk
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HST Detections of Massive Black Holes in the Centers of Galaxies
After correcting spherical aberration in the Hubble Space Telescope in 1993, the central masses of galaxies can be measured with
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Integration of the SL(2,R)/U(1) Gauged WZNW Theory by Reduction and Quantum Parafermions
Using a gauge invariant reduction we directly integrate the SL(2,R)/U(1) WZNW theory. We prove that the conserved parafermions of this
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Intracluster Planetary Nebulae in the Virgo Cluster
We briefly describe the properties of the confirmed spectroscopic sample of intracluster planetary nebulae recently discovered in the Virgo cluster.
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Kilo-hertz QPO in Island State of 4U1608-52 as Observed with RXTE/PCA
We report RXTE/PCA observations of 4U 1608-52 on March 15, 18 and 22 immediately after the outburst in early 1996.
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Latest QCD results from LEP
We summarise the latest experimental QCD studies based on data from LEP. Measurements of the quark and gluon jet fragmentation
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Multiscale Renormalization and Decoupling
The standard MS renormalization prescription is inadequate for dealing with multiscale problems. To illustrate this, we consider the computation of
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Planetary Nebulae in NGC 5128 (Centaurus A)
The study of planetary nebulae (PNe) in the nearby post-merger elliptical galaxy NGC 5128 (Cen A) now has a history
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Quantum Field Theory in Curved Spacetime
These lectures deal with selected aspects of quantum field theory in curved spacetime including the following topics: (1) Quantization of
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Quantum Gravity and Astrophysics: The Microwave Background and Other Thermal Sources
The problem of formulating a fully consistent quantum gravity theory (QGT) has not yet been solved. Even before we are
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Quantum Inequality Restrictions on Negative Energy Densities in Curved Spacetimes
In quantum field theory, there exist states in which the expectation value of the energy density for a quantized field
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Quantum Lightcone Fluctuations in Theories with Extra Dimensions
The effects of small extra dimensions upon quantum fluctuations of the lightcone are examined. We argue that compactified extra dimensions
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Search for clusters at high redshift - I. Candidate Lya emitters near 1138-262 at z=2.2
Radio, optical and X-ray observations of the powerful radio galaxy PKS 1138-262 at z=2.156 have suggested that this galaxy is
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Stress Tensor Fluctuations and Passive Quantum Gravity
The quantum fluctuation of the stress tensor of a quantum field are discussed, as are the resulting spacetime metric fluctuations.
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