Galaxy clusters discovered with a Sunyaev-Zel'dovich effect surveyThe South Pole Telescope (SPT) is conducting a Sunyaev-Zel'dovich (SZ) effect survey over large areas of the southern sky, searching for massive galaxy clusters to high redshift. In this…Z. Staniszewski, P. A. R. Ade, K. A. Aird et al.·Oct 9, 2008SaveLearn
CNONa and 12C/13C in giants of 10 open clustersEvolved low-mass stars of a wide range of metallicity bear signatures of a non-standard mixing event in their surface abundances of Li, C, and N, and in their 12C/13C ratio. A Na overabundance has…R. Smiljanic, R. Gauderon, P. North et al.·Oct 9, 2008SaveLearn
Low-frequency solar p modes as seen by GOLF and GONG instrumentsIn the case of spatially-revolved helioseismic data (such as MDI, GONG, HMI), the usual mode-fitting analysis consists of fitting the 2l+1 individual m-spectra of a given multiplet (n, l) either…D. Salabert, R. A. Garcia·Oct 9, 2008SaveLearn
Magnetogenesis and the primordial non-gaussianityThe primordial density fluctuation inevitably couples to all forms of matter via loop corrections and depends on the ambient conditions while inflation was ongoing. This gives us an opportunity to…David Seery·Oct 9, 2008SaveLearn
Probing the radio to X-ray connection of the Vela X PWN with Fermi LAT and H.E.S.SMorphologically it appears as if the Vela X PWN consists of two emission regions: whereas X-ray (1 keV) and very high energy (VHE) H.E.S.S. gamma-ray observations appear to define a cocoon type shape…O. C. de Jager, P. O. Slane, S. LaMassa·Oct 9, 2008SaveLearn
Pulsar Timing for the Fermi Gamma-ray Space TelescopeWe describe a comprehensive pulsar monitoring campaign for the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope (formerly GLAST). The detection and study of pulsars in gamma…D. A. Smith, L. Guillemot, F. Camilo et al.·Oct 9, 2008SaveLearn
Detection of chromatic microlensing in Q 2237+0305 AWe present narrowband images of the gravitational lens system Q~2237+0305 made with the Nordic Optical Telescope in eight different filters covering the wavelength interval 3510-8130 Å. Using…A. M. Mosquera, J. A. Muñoz, E. Mediavilla·Oct 9, 2008SaveLearn
New period-luminosity and period-color relations of classical Cepheids: III. Cepheids in SMCThe photometric data for 460 classical, fundamental-mode Cepheids in the SMC with log P > 0.4 measured by Udalski et al. have been analyzed for their P-C and P-L relations, and for the variation of…A. Sandage, G. A. Tammann, B. Reindl·Oct 9, 2008SaveLearn
MAXI and GLAST Studies of Jets in Active GalaxiesThe recent launch of Fermi / GLAST - coinciding with the MAXI workshop - opens a new era for studies of jet-dominated active galaxies, known as blazars. While the emission processes operating in…Greg Madejski, Jun Kataoka, Marek Sikora·Oct 9, 2008SaveLearn
Rotational Line Emission from Water in Protoplanetary DisksCircumstellar disks provide the material reservoir for the growth of young stars and for planet formation. We combine a high-level radiative transfer program with a thermal-chemical model of a…R. Meijerink, D. R. Poelman, M. Spaans et al.·Oct 9, 2008SaveLearn
Drag-Gravity torques on galaxies in clusters: radial small-scale alignment effectsWe calculate the torque on galaxies in clusters due to gravity and to dynamical friction forces in order to study the possible origin of small-scale alignment effects as the result of interactions…Alejandro González S., Luís F. A. Teodoro·Oct 9, 2008SaveLearn
Core instability models of giant planet accretion II: forming planetary systemsWe develop a simple model for computing planetary formation based on the core instability model for the gas accretion and the oligarchic growth regime for the accretion of the solid core. In this…Yamila Miguel, Adrian Brunini·Oct 9, 2008SaveLearn
A Cosmic Vision Beyond EinsteinThe acceleration of the cosmic expansion is a fundamental challenge to standard models of particle physics and cosmology. The new physics of dark energy may lie in the nature of gravity, the quantum…Eric V. Linder·Oct 9, 2008SaveLearn
Relative Spectra and Distributions of Fluences of 3He and 4He in Solar Energetic ParticlesSolar Energetic Particles (SEPs) show a rich variety of spectra and relative abundances of many ionic species and their isotopes. A long standing puzzle has been the extreme enrichments of 3He ions.…Vahe Petrosian, Yan Wei Jiang, Siming Liu et al.·Oct 9, 2008SaveLearn
Rescuing the Initial Mass Function for Arp 78We present deep R and narrow-band Halpha images of Arp 78 obtained with the WIYN 3.5-m telescope on Kitt Peak. GALEX observations had shown a very extended UV structure for this system, reaching…Ralf Kotulla, Uta Fritze, John S Gallagher·Oct 9, 2008SaveLearn
Falsifying Paradigms for Cosmic AccelerationConsistency relations between growth of structure and expansion history observables exist for any physical explanation of cosmic acceleration, be it a cosmological constant, scalar field…Michael J. Mortonson, Wayne Hu, Dragan Huterer·Oct 9, 2008SaveLearn
Examples of seismic modellingFindings of a few recent asteroseismic studies of the main-sequence pulsating stars, as performed in Wojciech Dziembowski's group in Warsaw and in Michel Breger's group in Vienna, are briefly…A. A. Pamyatnykh·Oct 9, 2008SaveLearn
A Distance-Limited Imaging Survey of Sub-Stellar Companions to Solar Neighborhood StarsWe report techniques and results of a Palomar 200-inch (5 m) adaptive optics imaging survey of sub-stellar companions to solar-type stars. The survey consists of Ks coronagraphic observations of 21…Joseph C. Carson, Kyle D. Hiner, Gregorio G. Villar et al.·Oct 9, 2008SaveLearn
Spatial Cross Spectrum: Reducing Incoherent Convective Background of Resolved Heloseismic InstrumentsMeasurements of low-order p modes and gravity modes are perturbed by the solar convective background. Such perturbation increases below 2mHz for intensity measurements and 1mHz for velocity…R. A. Garcia, S. Mathur, I. Gonzalez Hernandez et al.·Oct 9, 2008SaveLearn
IRAM-PdBI Observations of Binary Protostars I: The Hierarchical System SVS13 in NGC1333We present millimeter interferometric observations of the young stellar object SVS13 in NCG1333 in the N2H+(1-0) line and at 1.4 and 3mm dust continuum, using the IRAM Plateau de Bure interferometer.…Xuepeng Chen, Ralf Launhardt, Thomas Henning·Oct 9, 2008SaveLearn
A Planet in a 0.6-AU Orbit Around the K0 Giant HD 102272We report the discovery of one or more planet-mass companions to the K0-giant HD 102272 with the Hobby-Eberly Telescope. In the absence of any correlation of the observed periodicities with the…A. Niedzielski, K. Go\' zdziewski, A. Wolszczan et al.·Oct 9, 2008SaveLearn
Characterization of AGN and their hosts in the Extended Groth Strip: a multiwavelength analysisWe have employed a reliable technique of classification of Active Galactic Nuclei (AGN) based on the fit of well-sampled spectral energy distributions (SEDs) with a complete set of AGN and starburst…Cristina Ramos Almeida, Jose Miguel Rodriguez Espinosa, Guillermo Barro et al.·Oct 9, 2008SaveLearn
On the solar origin of the 220.7 signalGravity modes in the Sun have been long searched during the past decades. Using their asymptotic properties Garcia et al. (2007) found the signature of the dipole g modes analyzing an spectral window…A. Jimenez, R. A. Garcia·Oct 9, 2008SaveLearn
The properties of brown dwarfs and low-mass hydrogen-burning stars formed by disc fragmentationWe suggest that a high proportion of brown dwarfs are formed by gravitational fragmentation of massive extended discs around Sun-like stars. Such discs should arise frequently, but should be observed…Dimitris Stamatellos, Anthony P. Whitworth·Oct 9, 2008SaveLearn
Spectral variability in Cygnus X-3We model the broad-band X-ray spectrum of Cyg X-3 in all states displayed by this source as observed by the Rossi X-ray Timing Explorer. From our models, we derive for the first time unabsorbed…L. Hjalmarsdotter, A. A. Zdziarski, A. Szostek et al.·Oct 9, 2008SaveLearn