Fabrication and Test of Pixelated CZT Detectors with Different Pixel Pitches and ThicknessesThe main methods grown Cadmium Zinc Telluride (CZT) crystals with high yield and excellent homogeneity are Modified Horizontal Bridgman (MHB) and High Pressure Bridgman (HPB) processes, respectively.…Q. Li, A. Garson, P. Dowkontt et al.·Nov 19, 2008SaveLearn
Hubble Space Telescope Survey of the Perseus Cluster: II. Photometric scaling relations in different environmentsWe investigate the global photometric scaling relations traced by early-type galaxies in different environments, ranging from dwarf spheroidals, over dwarf elliptical galaxies, up to giant…S. De Rijcke, S. Penny, C. Conselice et al.·Nov 19, 2008SaveLearn
Hubble Space Telescope survey of the Perseus Cluster - I: The structure and dark matter content of cluster dwarf spheroidalsWe present the results of a Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS) study of dwarf galaxies in the core of the rich nearby Perseus Cluster, down to MV=-12. We identify 29…S. Penny, C. Conselice, S. De Rijcke et al.·Nov 19, 2008SaveLearn
The chemical abundances in the Galactic Centre from the atmospheres of Red SupergiantsThe Galactic Centre (GC) has experienced a high degree of recent star-forming activity, as evidenced by the large number of massive stars currently residing there. The relative abundances of chemical…Ben Davies, Livia Origlia, Rolf-Peter Kudritzki et al.·Nov 19, 2008SaveLearn
Reconciling MOND and dark matter?Observations of galaxies suggest a one-to-one analytic relation between the inferred gravity of dark matter at any radius and the enclosed baryonic mass, a relation summarized by Milgrom's law of…Jean-Philippe Bruneton, Stefano Liberati, Lorenzo Sindoni et al.·Nov 19, 2008SaveLearn
The case for optical interferometric polarimetryWithin the last 10 years, long-baseline optical interferometry (LBOI) has benefited significantly from increased sensitivity, spatial resolution, and spectral resolution, e.g., measuring the…Nicholas M. Elias, Carol E. Jones, Henrique R. Schmitt et al.·Nov 19, 2008SaveLearn
Red giant stellar collisions in the Galactic CentreWe show that collisions with stellar--mass black holes can partially explain the absence of bright giant stars in the Galactic Centre, first noted by Genzel et al, 1996. We show that the missing…James E. Dale, Melvyn B. Davies, Ross P. Church et al.·Nov 19, 2008SaveLearn
Detecting the effect of Globular Cluster impacts on the disk of the Milky WayThe crossing of the Galactic disk by a Globular Cluster could produce star formation due to gravitational focussing or compression of disk material. We report on simulations of the effect on disk…D. Vande Putte, Mark Cropper·Nov 19, 2008SaveLearn
Radio Bimodality: Spin, Accretion Mode, or Both?A new scenario is suggested to explain a large diversity of the AGN radio properties and their dependence on the galaxy morphology. The scenario is based on the assumption that the growth of…M. Sikora·Nov 19, 2008SaveLearn
On the nature of the extragalactic number counts in the K-bandWe investigate the causes of the different shape of the K-band number counts when compared to other bands, analyzing in detail the presence of a change in the slope around K17.5. We present a…G. Barro, J. Gallego, P. G. Pérez-González et al.·Nov 19, 2008SaveLearn
A new method for determining physical parameters of fundamental mode RR Lyrae stars from multicolour light curvesWe present a new method for determining physical parameters of RRab variables exclusively from multicolour light curves. Our method is an Inverse Photometric Baade-Wesselink analysis which, using a…Á. Sódor, J. Jurcsik, B. Szeidl·Nov 19, 2008SaveLearn
Pairing mechanisms for binary starsKnowledge of the binary population in stellar groupings provides important information about the outcome of the star forming process in different environments. Binarity is also a key ingredient in…M. B. N. Kouwenhoven, A. G. A. Brown, S. P. Goodwin et al.·Nov 19, 2008SaveLearn
Clustering of Meter-wave Luminous Objects toward MonocerosA distribution of the meter-wave luminous objects, which are bright at frequency 74 MHz (a wavelength of 4 m) but not detectable at 1.4 GHz (21 cm) in the VLA surveys, shows a notable concentration…Shuji Deguchi, Kazutaka Koike·Nov 19, 2008SaveLearn
Identikit 1: A Modeling Tool for Interacting Disk GalaxiesBy combining test-particle and self-consistent techniques, we have developed a method to rapidly explore the parameter space of galactic encounters. Our method, implemented in an interactive graphics…Joshua E. Barnes, John E. Hibbard·Nov 19, 2008SaveLearn
Red supergiants as potential Type IIn supernova progenitors: Spatially resolved 4.6 micron CO emission around VY CMa and BetelgeuseWe present high-resolution 4.6micron CO spectra of the circumstellar environments of two RSGs that are potential SN progenitors: Betelgeuse and VY CMa. Around Betelgeuse, 12CO emission within 3arcsec…Nathan Smith, Kenneth H. Hinkle, Nils Ryde·Nov 19, 2008SaveLearn
Three-Dimensional Simulations of Solar and Stellar Dynamos: The Influence of a TachoclineWe review recent advances in modeling global-scale convection and dynamo processes with the Anelastic Spherical Harmonic (ASH) code. In particular, we have recently achieved the first global-scale…M. S. Miesch, M. K. Browning, A. S. Brun et al.·Nov 19, 2008SaveLearn
Substructure in the cold front cluster Abell 3667We present evidence for the existence of significant substructure in the cold front cluster Abell 3667 based on multi-object spectroscopy taken with the 3.9m Anglo Australian Telescope. This paper is…Matt S. Owers, Warrick J. Couch, Paul E. J. Nulsen·Nov 19, 2008SaveLearn
An Energetic AGN Outburst Powered by a Rapidly Spinning Supermassive Black Hole or an Accreting Ultramassive Black HolePowering the 1062 erg nuclear outburst in the MS0735.6+7421 cluster central galaxy by accretion implies that its supermassive black hole (SMBH) grew by ~6x108 solar masses over the past 100 Myr. We…B. R. McNamara, F. Kazemzadeh, D. A. Rafferty et al.·Nov 18, 2008SaveLearn
Exoplanets from the CHEPS: Discovery of the Double Planet System HD191760The paper was withdrawn due to another possible solution to the dataset that is significantly different in nature. This issue will be addressed shortly and clarified with an additional data point.J. S. Jenkins, H. R. A. Jones, J. R. Barnes et al.·Nov 18, 2008SaveLearn
The Shapes of Molecular Cloud Cores in Simulations and ObservationsIn this study, we investigate the shapes of starless and protostellar cores using hydrodynamic, self-gravitating adaptive mesh refinement simulations of turbulent molecular clouds. We simulate…S. S. R. Offner, M. R. Krumholz·Nov 18, 2008SaveLearn
Prompt high-energy emission from gamma-ray bursts in the internal shock modelThe prompt GRB emission is thought to arise from electrons accelerated in internal shocks propagating within a highly relativistic outflow. The launch of Fermi offers the prospect of observations…Z. Bosnjak, F. Daigne, G. Dubus·Nov 18, 2008SaveLearn
[SiPAH]+ pi-Complexes in the Interstellar MediumWe investigate the presence of silicon atoms adsorbed on the surface of interstellar polycyclic aromatic hydrocarbons (PAHs) to form SiPAH pi-complexes. We use quantum chemistry calculations to…B. Joalland, A. Simon, C. J. Marsden et al.·Nov 18, 2008SaveLearn
Very-High Energy Gamma-Ray Flux Limits for Nearby Active Galactic NucleiCombining the results of targeted observations, H.E.S.S. has accumulated a large amount of extra-galactic exposure at TeV energies. Due to its large field of view a considerable part of the sky (0.6…T. Herr, W. Hofmann·Nov 18, 2008SaveLearn
A Magnetohydrodynamic Model for the Formation of Episodic JetsEpisodic ejection of plasma blobs have been observed in many black hole systems. While steady, continuous jets are believed to be associated with large-scale open magnetic fields, what causes the…Feng Yuan, Jun Lin, Kinwah Wu et al.·Nov 18, 2008SaveLearn
Spin Needlets for Cosmic Microwave Background Polarization Data AnalysisScalar wavelets have been used extensively in the analysis of Cosmic Microwave Background (CMB) temperature maps. Spin needlets are a new form of (spin) wavelets which were introduced in the…Daryl Geller, Frode K. Hansen, Domenico Marinucci et al.·Nov 18, 2008SaveLearn