Photometric properties of resolved and unresolved magnetic elementsWe investigate the photometric signature of magnetic flux tubes in the solar photosphere. We developed two dimensional, static numerical models of isolated and clustered magnetic flux tubes. We…Serena Criscuoli, Mark Rast·Dec 9, 2008SaveLearn
The JCMT Nearby Galaxies Legacy Survey I. Star Forming Molecular Gas in Virgo Cluster Spiral GalaxiesWe present large-area maps of the CO J=3-2 emission obtained at the James Clerk Maxwell Telescope for four spiral galaxies in the Virgo Cluster. We combine these data with published CO J=1-0, 24…C. D. Wilson, B. E. Warren, F. P. Israel et al.·Dec 9, 2008SaveLearn
Physical and chemical conditions in methanol maser selected hot-cores and UCHII regionsWe present the results of a targeted 3-mm spectral line survey towards the eighty-three 6.67 GHz methanol maser selected star forming clumps observed by Purcell et al. 2006. In addition to the…C. R. Purcell, S. N. Longmore, M. G. Burton et al.·Dec 9, 2008SaveLearn
Nuclear Masses in AstrophysicsAmong all nuclear ground-state properties, atomic masses are highly specific for each particular combination of N and Z and the data obtained apply to a variety of physics topics. One of the most…Christine Weber, Klaus Blaum, Hendrik Schatz·Dec 9, 2008SaveLearn
Constraining Cosmological Parameters with Observational Data Including Weak Lensing EffectsIn this paper, we study the cosmological implications of the 100 square degree Weak Lensing survey (the CFHTLS-Wide, RCS, VIRMOS-DESCART and GaBoDS surveys). We combine these weak lensing data with…Hong Li, Jie Liu, Jun-Qing Xia et al.·Dec 9, 2008SaveLearn
Modelling solar-like variability for the detection of Earth-like planetary transits. II) Performance of the three-spot modelling, harmonic function fitting, iterative non-linear filtering and sliding boxcar filteringWe present a comparison of four methods of filtering solar-like variability to increase the efficiency of detection of Earth-like planetary transits by means of box-shaped transit finder algorithms.…A. S. Bonomo, S. Aigrain, P. Bordé et al.·Dec 9, 2008SaveLearn
Angular momentum transport in a multicomponent solar wind with differentially flowing, thermally anisotropic ionsThe Helios measurements of the angular momentum flux L for the fast solar wind show that the individual ion contributions, Lp and Lα, tend to be negative (i.e., in the sense of…Bo Li, Xing Li·Dec 9, 2008SaveLearn
Resolving the jet in Cygnus AOur previous studies revealed a good kinematic model for the jet of Cygnus A, but the counter-jet speed is still not well constrained. The central engine and part of the counter-jet of Cyg A are…U. Bach, T. P. Krichbaum, E. Middelberg et al.·Dec 9, 2008SaveLearn
The XMM-Newton view of AGN with intermediate mass black holesWe have observed with XMM-Newton four radiatively efficient active type 1 galaxies with black hole masses < 106 Msun, selected optically from the SDSS. We show here that their soft X-ray spectrum…G. Miniutti, G. Ponti, J. E. Greene et al.·Dec 9, 2008SaveLearn
An analysis of electron distributions in galaxy clusters by means of the flux ratio of iron lines FeXXV and XXVIThe interpretation of hard X-ray emission from galaxy clusters is still ambiguous and different models proposed can be probed using various observational methods. Here we explore a new method based…D. A. Prokhorov, F. Durret, V. A. Dogiel et al.·Dec 9, 2008SaveLearn
PIC simulation of a strong double layer in a nonrelativistic plasma flow: Electron acceleration to ultrarelativistic speedsTwo charge- and current neutral plasma beams are modelled with a one-dimensional PIC simulation. The beams are uniform and unbounded. The relative speed between both beams is 0.4c. One beam is…M E Dieckmann, A Bret·Dec 9, 2008SaveLearn
Very high energy gamma-ray observations of the galaxy clusters Abell 496 and Abell 85 with H.E.S.SAims: The nearby galaxy clusters Abell 496 and Abell 85 are studied in the very high energy (VHE, E > 100 GeV) band to investigate VHE cosmic rays (CRs) in this class of objects which are the largest…H. E. S. S. Collaboration, :, F. Aharonian·Dec 9, 2008SaveLearn
Comparison of transient horizontal magnetic fields in a plage region and in the quiet SunProperties of transient horizontal magnetic fields (THMFs) in both plage and quiet Sun regions are obtained and compared. Spectro-polarimetric observations with the Solar Optical Telescope (SOT) on…Ryohko Ishikawa, Saku Tsuneta·Dec 9, 2008SaveLearn
Jets and multi-phase turbulenceJets are observed to stir up multi-phase turbulence in the inter-stellar medium as well as far beyond the host galaxy. Here we present detailed simulations of this process. We evolve the…Martin G. H. Krause·Dec 9, 2008SaveLearn
Internal Extinction in the SDSS Late-Type GalaxiesWe study internal extinction of late-type galaxies in the Sloan Digital Sky Survey. We find that the degree of internal extinction depends on both the concentration index c and Ks-band absolute…Jungyeon Cho, Changbom Park·Dec 9, 2008SaveLearn
The HARPS search for southern extra-solar planets. XVII. Super-Earth and Neptune-mass planets in multiple planet systems HD47186 and HD181433This paper reports on the detection of two new multiple planet systems around solar-like stars HD47186 and HD181433. The first system includes a hot Neptune of 22.78 MEarth at 4.08-days period and a…F. Bouchy, M. Mayor, C. Lovis et al.·Dec 9, 2008SaveLearn
A New Feature in the Spectrum of the Superluminous LMC Supergiant HDE 269896We have found strong selective emission of the N II 5000A complex in the spectrum of the LMC hypergiant HDE 269896, ON9.7 Ia+. Since this object also has anomalously strong He II λ4686 emission…Mariela A. Corti, Nolan R. Walborn, Christopher J. Evans·Dec 9, 2008SaveLearn
Ten New and Updated Multi-planet Systems, and a Survey of Exoplanetary SystemsWe present the latest velocities for 10 multi-planet systems, including a re-analysis of archival Keck and Lick data, resulting in improved velocities that supersede our previously published…J. T. Wright, S. Upadhyay, G. W. Marcy et al.·Dec 8, 2008SaveLearn
Reconstructing Patchy Reionization from the Cosmic Microwave BackgroundWe introduce a new statistical technique for extracting the inhomogeneous reionization signal from future high-sensitivity measurements of the cosmic microwave background temperature and polarization…Cora Dvorkin, Kendrick M. Smith·Dec 8, 2008SaveLearn
The Iron abundance in Galactic Planetary NebulaeWe constrain the iron abundance in a sample of 33 low-ionization Galactic planetary nebulae (PNe) using [Fe III] lines and correcting for the contribution of higher ionization states with ionization…G. Delgado-Inglada, M. Rodriguez, A. Mampaso et al.·Dec 8, 2008SaveLearn
Discovery of very low amplitude 9-minute multiperiodic pulsations in the magnetic Ap star HD 75445We present our discovery of pulsational radial-velocity variations in the cool Ap star HD 75445, an object spectroscopically similar to the bright, rapidly-oscillating Ap (roAp) star gamma Equ. Based…O. Kochukhov, S. Bagnulo, G. Lo Curto et al.·Dec 8, 2008SaveLearn
Stellar Population Models and Individual Element Abundances II: Stellar Spectra and Integrated Light ModelsThe first paper in this series explored the effects of altering the chemical mixture of the stellar population on an element by element basis on stellar evolutionary tracks and isochrones to the end…H. -c. Lee, G. Worthey, A. Dotter et al.·Dec 8, 2008SaveLearn
Hall equilibrium of thin Keplerian disks embedded in mixed poloidal and toroidal magnetic fieldsAxisymmetric steady-state weakly ionized Hall-MHD Keplerian thin disks are investigated by using asymptotic expansions in the small disk aspect ratio ε. The model incorporates the azimuthal and…Yuri M. Shtemler, Michael Mond, Gunther Rudiger·Dec 8, 2008SaveLearn
INTEGRAL Observations of the Perseus clusterWe present the results of a 500 ksec observation of the Perseus cluster with INTEGRAL, with the aim of investigating the possible diffuse non-thermal component detected in a previous Chandra…D. Eckert, S. Paltani·Dec 8, 2008SaveLearn
The Horizon Run N-body Simulation: Baryon Acoustic Oscillations and Topology of Large Scale Structure of the UniverseIn support of the new Sloan III survey, which will measure the baryon oscillation scale using the luminous red galaxies (LRGs), we have run the largest N-body simulation to date using 41203 = 69.9…Juhan Kim, Changbom Park, J. Richard Gott et al.·Dec 8, 2008SaveLearn