Dispersion of Magnetic Fields in Molecular Clouds. IWe describe a method for determining the dispersion of magnetic field vectors about large-scale fields in turbulent molecular clouds. The method is designed to avoid inaccurate estimates of…Roger H. Hildebrand, Larry Kirby, Jessie L. Dotson et al.·Nov 5, 2008SaveLearn
Pairing of Supermassive Black Holes in unequal-mass galaxy mergersWe examine the pairing process of supermassive black holes (SMBHs) down to scales of 20-100 pc using a set of N-body/SPH simulations of binary mergers of disk galaxies with mass ratios of 1:4 and…Simone Callegari, Lucio Mayer, Stelios Kazantzidis et al.·Nov 5, 2008SaveLearn
Viability of vector-tensor theories of gravityWe present a detailed study of the viability of general vector-tensor theories of gravity in the presence of an arbitrary temporal background vector field. We find that there are six different…Jose Beltran Jimenez, Antonio L. Maroto·Nov 5, 2008SaveLearn
The Pierre Auger Observatory - a new stage in the study of the ultra-high energy cosmic raysThis paper presents the highlights from the recent measurements of the energy spectrum, mass composition, and arrival directions of the ultra-high energy (> 1017 eV = 0.1 EeV) cosmic rays…Serguei Vorobiov·Nov 5, 2008SaveLearn
The Impact of Uncertainties in Reaction Q-values on Nucleosynthesis in Type I X-Ray BurstsNucleosynthesis in Type I X-ray bursts may involve up to several thousand nuclear processes. The majority of these processes have only been determined theoretically due to the lack of sufficient…A. Parikh, J. Jose, C. Iliadis et al.·Nov 5, 2008SaveLearn
The first two transient supersoft X-ray sources in M 31 globular clusters and the connection to classical novaeClassical novae (CNe) have been found to represent the major class of supersoft X-ray sources (SSS) in our neighbour galaxy M 31. We determine properties and evolution of the two first SSSs ever…M. Henze, W. Pietsch, F. Haberl et al.·Nov 5, 2008SaveLearn
Short Gamma-Ray Bursts and Gravitational Waves from Dynamically Formed Merging BinariesMerging binary systems consisting of two collapsed objects are among the most promising sources of high frequency gravitational wave, GW, signals for ground based interferometers. Double neutron star…Dafne Guetta, Luigi Stella·Nov 5, 2008SaveLearn
Gamma Ray Astronomy and the Origin of Galactic Cosmic RaysDiffusive shock acceleration operating at expanding supernova remnant shells is by far the most popular model for the origin of galactic cosmic rays. Despite the general consensus received by this…Stefano Gabici·Nov 5, 2008SaveLearn
Chandra and XMM Observations of the Composite Supernova Remnant G327.1-1.1We present new X-ray imaging and spectroscopy of a composite supernova remnant G327.1-1.1 using the Chandra and XMM-Newton X-ray observatories. G327.1-1.1 has an unusual morphology consisting of a…Tea Temim, Patrick Slane, B. M. Gaensler et al.·Nov 5, 2008SaveLearn
The Effectiveness of the Kozai Mechanism in the Galactic CentreI examine the effectiveness of Kozai oscillations in the centres of galaxies and in particular the Galactic centre using standard techniques from celestial mechanics. In particular, I study the…P. Chang·Nov 5, 2008SaveLearn
Digging Into the Surface of the Icy Dwarf Planet ErisWe describe optical spectroscopic observations of the icy dwarf planet Eris with the 6.5 meter MMT telescope and the Red Channel Spectrograph. We report a correlation, that is at the edge of…M. R. Abernathy, S. C. Tegler, W. M. Grundy et al.·Nov 5, 2008SaveLearn
The OPTX Project I: The Flux and Redshift Catalogs for the CLANS, CLASXS, and CDF-N fieldsWe present the redshift catalogs for the X-ray sources detected in the Chandra Deep Field North (CDF-N), the Chandra Large Area Synoptic X-ray Survey (CLASXS), and the Chandra Lockman Area North…L. Trouille, A. J. Barger, L. L. Cowie et al.·Nov 5, 2008SaveLearn
Density Studies of MHD Interstellar Turbulence: Statistical Moments, Correlations and BispectrumWe present a number of statistical tools for obtaining studying turbulence in molecular clouds and diffuse interstellar medium. For our tests we used of three-dimensional 512 cube compressible MHD…Blakesley Burkhart, D. Falceta-Goncalves, G. Kowal et al.·Nov 5, 2008SaveLearn
Chandra Acis Survey of X-Ray Point Sources in 383 Nearby Galaxies I. the Source CatalogThe Chandra data archive after eight years' accumulation is a treasure for various studies, and in this paper we exploit this valuable resource to study the X-ray point source populations in…Jifeng Liu·Nov 5, 2008SaveLearn
Driving major solar flares and eruptions: a reviewThis review focuses on the processes that energize and trigger major solar flares and flux-rope destabilizations. Numerical modeling of specific solar regions is hampered by uncertain coronal-field…C. J. Schrijver·Nov 5, 2008SaveLearn
Multi-line Doppler imaging of MR Ser in high-stateDoppler images in Balmer, HeI, HeII and CII lines, and simultaneous I-band photometry of the polar MR Ser are presented and analyzed. The Balmer and Helium Doppler tomograms of this bright polar at…Marcos Diaz, Deonisio Cieslinski·Nov 5, 2008SaveLearn
2006 Whole Earth Telescope Observations of GD358: A New Look at the Prototype DBVWe report on the analysis of 436.1 hrs of nearly continuous high-speed photometry on the pulsating DB white dwarf GD358 acquired with the Whole Earth Telescope (WET) during the 2006 international…J. L. Provencal, M. H. Montgomery, A. Kanaan et al.·Nov 5, 2008SaveLearn
How Polarization and Scattering can reveal Geometries, Dynamics, and Feeding of Active Galactic NucleiGaskell et al. (2007) introduced polarization reverberation mapping as a new technique to explore the structure of active galactic nuclei. We present modeling results for the time-dependent…R. W. Goosmann, C. M. Gaskell, M. Shoji·Nov 5, 2008SaveLearn
Binary and Millisecond PulsarsWe review the main properties, demographics and applications of binary and millisecond radio pulsars. Our knowledge of these exciting objects has greatly increased in recent years, mainly due to…D. R. Lorimer·Nov 5, 2008SaveLearn
R-matrix inner-shell electron-impact excitation of Fe15+ including Auger-plus-radiation dampingWe present results for the inner-shell electron-impact excitation of Fe15+ using the intermediate-coupling frame transformation R-matrix approach in which Auger-plus-radiation damping has…G Y Liang, A D Whiteford, N R Badnell·Nov 5, 2008SaveLearn
Cometary masses derived from non-gravitational forcesWe compute masses and densities for ten periodic comets with known sizes: 1P/Halley, 2P/Encke, 6P/d'Arrest, 9P/Tempel 1, 10P/Tempel 2, 19P/Borrelly, 22P/Kopff, 46P/Wirtanen,…Andrea Sosa, Julio A. Fernandez·Nov 5, 2008SaveLearn
Giant cavities, cooling and metallicity substructure in Abell 2204We present results from deep Chandra and XMM-Newton observations of the relaxed X-ray luminous galaxy cluster Abell 2204. We detect metallicity inhomogeneities in the intracluster medium on a variety…J. S. Sanders, A. C. Fabian, G. B. Taylor·Nov 5, 2008SaveLearn
Gamma ray astrophysics: the EGRET resultsCosmic gamma rays provide insight into some of the most dynamic processes in the Universe. At the dawn of a new generation of gamma-ray telescopes, this review summarizes results from the Energetic…D J Thompson·Nov 5, 2008SaveLearn
The most energetic cosmic rays and their possible sourcesThe primary cosmic rays particles with energies above 10**20 eV have been observed at many extensive air shower arrays since the beginning of observations over 40 years ago. The validity of…L. G. Dedenko, D. A. Podgrudkov, T. M. Roganova et al.·Nov 5, 2008SaveLearn
Trigonometric Parallaxes of Massive Star Forming Regions: V. G23.01-0.41 and G23.44-0.18We report trigonometric parallaxes for the massive star-forming regions G23.01-0.41 and G23.44-0.18, corresponding to distances of 4.59 [+0.38/-0.33] kpc and 5.88 [+1.37/-0.93] kpc, respectively. The…A. Brunthaler, M. J. Reid, K. M. Menten et al.·Nov 5, 2008SaveLearn