Coulomb suppression of the stellar enhancement factorIt is commonly assumed that reaction measurements for astrophysics should be preferably performed in the direction of positive Q value to minimize the impact of the stellar enhancement factor, i.e.…G. G. Kiss, T. Rauscher, Gy. Gyürky et al.·Sep 16, 2008SaveLearn
Optical properties of High-Mass X-ray Binaries (HMXB) in the Small Magellanic CloudThe SMC represents an exciting opportunity to observe the direct results of tidal interactions on star birth. One of the best indicators of recent star birth activity is the presence of signicant…M. J. Coe, R. H. D. Corbet, K. E. McGowan et al.·Sep 16, 2008SaveLearn
Relativistic Shock Acceleration: A Hartree-Fock ApproachWe examine the problem of particle acceleration at a relativistic shocks assuming pitch-angle scattering and using a Hartree-Fock method to approximate the associated eigenfunctions. This leads to a…Paul Dempsey, John G. Kirk·Sep 16, 2008SaveLearn
Search for Near-Infrared Pulsation of the Anomalous X-ray Pulsar 4U 0142+61We have searched for pulsation of the anomalous X-ray pulsar (AXP) 4U 0142+61 in the K' band (λ eff = 2.11 μm) using the fast-readout mode of IRCS at the Subaru 8.2-m telescope. We…Mikio Morii, Naoto Kobayashi, Nobuyuki Kawai et al.·Sep 16, 2008SaveLearn
Line of sight depth of the Large and Small Magellanic CloudsWe used the red clump stars from the Optical Gravitational Lensing Experiment (OGLE II) survey and the the Magellanic Cloud Photometric Survey (MCPS), to estimate the line of sight depth. The…Annapurni Subramaniam, Smitha Subramanian·Sep 16, 2008SaveLearn
Scattering matrices and expansion coefficients of Martian analogue palagonite particlesWe present measurements of ratios of elements of the scattering matrix of Martian analogue palagonite particles for scattering angles ranging from 3 to 174 degrees and a wavelength of 632.8 nm. To…E. C. Laan, H. Volten, D. M. Stam et al.·Sep 16, 2008SaveLearn
A Quasar Wind ModelA quasar wind model is proposed to describe the spatial and velocity structure of the broad line region. This model requires detailed photoionization and magnetohydrodynamic simulation, as the broad…Andrea Ruff·Sep 16, 2008SaveLearn
Chemical enrichment in the cluster of galaxies Hydra AWe analyzed global properties, radial profiles and 2D maps of the metal abundances and temperature in the cool core cluster of galaxies Hydra A using a deep XMM-Newton exposure. The best fit among…A. Simionescu, N. Werner, H. Böhringer et al.·Sep 15, 2008SaveLearn
First detection of hard X-ray photons in the soft X-ray transient Narrow-Line Seyfert 1 galaxy WPVS 007: The X-ray photon distribution observed by SwiftWe report on the first detection of hard X-ray photons (E>2.5 keV) in the X-ray transient Narrow-Line Seyfert 1 galaxy WPVS 007 which was the AGN with the softest X-ray spectrum during the ROSAT…Dirk Grupe, Karen M. Leighly, Stefanie Komossa·Sep 15, 2008SaveLearn
Can the Copernican principle be tested by cosmic neutrino background?The Copernican principle, stating that we do not occupy any special place in our universe, is usually taken for granted in modern cosmology. However recent observational data of supernova indicate…Junji Jia, Hongbao Zhang·Sep 15, 2008SaveLearn
SCP06F6: A carbon-rich extragalactic transient at redshift z~0.14?We show that the spectrum of the unusual transient SCP06F6 is consistent with emission from a cool, optically thick and carbon-rich atmosphere if the transient is located at a redshift of z~0.14. The…B. T. Gaensicke, A. J. Levan, T. R. Marsh et al.·Sep 15, 2008SaveLearn
Probing the last scattering surface through the recent and future CMB observationsWe have constrained the extended (delayed and accelerated) models of hydrogen recombination, by investigating associated changes of the position and the width of the last scattering surface. Using…Jaiseung Kim, Pavel Naselsky, Lev Krukier et al.·Sep 15, 2008SaveLearn
Evolution of stellar structure in the Small Magellanic CloudThe projected distribution of stars in the Small Magellanic Cloud (SMC) from the Magellanic Clouds Photometric Survey is analysed. Stars of different ages are selected via criteria based on V…M. Gieles, N. Bastian, B. Ercolano·Sep 15, 2008SaveLearn
The Metallicity Distribution of Distant F and G type stars in the CFHT Legacy Survey Deep FieldWe study the metal abundances of F and G type stars in the Galactic disk and halo using the Canada-France-Hawaii Telescope Legacy Survey D4 field. For a sample of stars within 7 kpc of the Galactic…Y. Karatas, M. Kilic, O. Gunes et al.·Sep 15, 2008SaveLearn
Magnetic Reconnection During the Two-Phase Evolution of a Solar Eruptive FlareWe present a detailed multi-wavelength analysis and interpretation of the evolution of an M7.6 flare on October 24, 2003. The X-ray observations of the flare taken from the RHESSI spacecraft reveal…Bhuwan Joshi, Astrid Veronig, K. -S. Cho et al.·Sep 15, 2008SaveLearn
Pulsating B and Be stars in the Magellanic CloudsStellar pulsations in main-sequence B-type stars are driven by the κ-mechanism due to the Fe-group opacity bump. The current models do not predict the presence of instability strips in the B…P. D. Diago, J. Gutiérrez-Soto, J. Fabregat et al.·Sep 15, 2008SaveLearn
Intrinsic absorption in 3C 279 at GeV-TeV energies and consequences for estimates of the EBLWe revisit the limits of the level of the extragalactic background light (EBL) recently reported by the MAGIC collaboration based on the observed gamma-ray spectrum of the quasar 3C279, considering…F. Tavecchio, D. Mazin·Sep 15, 2008SaveLearn
Hard X-Ray Spectrum from West Lobe of Radio Galaxy Fornax A Observed with SuzakuAn observation of the West lobe of radio galaxy Fornax A (NGC 1316) with Suzaku is reported. Since Feigelson et al. (1995) and Kaneda et al. (1995) discovered the cosmic microwave background boosted…Makoto S. Tashiro, Naoki Isobe, Hiromi Seta et al.·Sep 15, 2008SaveLearn
Profile and polarization characteristics of energetic pulsarsIn this paper we compare the characteristics of pulsars with a high spin-down energy loss rate (Edot) against those with a low Edot. We show that the differences in the total intensity pulse…Patrick Weltevrede, Simon Johnston·Sep 15, 2008SaveLearn
Detection and extraction of signals from the epoch of reionization using higher order one-point statisticsDetecting redshifted 21cm emission from neutral hydrogen in the early Universe promises to give direct constraints on the epoch of reionization (EoR). It will, though, be very challenging to extract…Geraint J. A. Harker, Saleem Zaroubi, Rajat M. Thomas et al.·Sep 15, 2008SaveLearn
SMA CO(2-1) Observations of CG30: A Protostellar Binary System with a High-Velocity Quadrupolar Molecular OutflowWe present interferometric observations in the 12CO (2-1) line and at 1.3 mm dust continuum of the low-mass protostellar binary system in the cometary globule CG30, using the Submillimeter Array. The…Xuepeng Chen, Tyler L. Bourke, Ralf Launhardt et al.·Sep 15, 2008SaveLearn
Emission from Large-scale Jets in QuasarsWe consider the emission processes in the large-scale jets of powerful quasars based on the results obtained with the VLA, Spitzer, Hubble, and Chandra. We show that two well-known jets, 3C 273 and…Yasunobu Uchiyama·Sep 15, 2008SaveLearn
Type Ia supernovae and the acceleration of the universe: results from the ESSENCE Supernova SurveyThe ESSENCE project was a six year supernova search carried out with the CTIO 4-m telescope. We also obtained spectra with many of the world's largest ground-based telescopes and observed some of…Kevin Krisciunas·Sep 15, 2008SaveLearn
A Search for the Most Massive Galaxies. III. Global and Central StructureWe used the Advanced Camera for Surveys on board the Hubble Space Telescope to obtain high resolution i-band images of the centers of 23 single galaxies, which were selected because they have SDSS…J. B. Hyde, M. Bernardi, R. K. Sheth et al.·Sep 15, 2008SaveLearn
High-Redshift Starbursting Dwarf Galaxies Revealed by GRB AfterglowsWe present a study of 15 long-duration gamma-ray burst (GRB) host galaxies at z>2. The GRBs are selected with available early-time afterglow spectra in order to compare interstellar medium (ISM)…Hsiao-Wen Chen, Daniel A. Perley, Lindsey K. Pollack et al.·Sep 15, 2008SaveLearn