Simple Waves in Ideal Radiation HydrodynamicsIn the dynamic diffusion limit of radiation hydrodynamics, advection dominates diffusion; the latter primarily affects small scales and has negligible impact on the large scale flow. The radiation…Bryan M. Johnson·Nov 24, 2008SaveLearn
CMBPol Mission Concept Study: Foreground Science Knowledge and ProspectsWe report on our knowledge of Galactic foregrounds, as well as on how a CMB satellite mission aiming at detecting a primordial B-mode signal (CMBPol) will contribute to improving it. We review the…A. A. Fraisse, J. -A. C. Brown, G. Dobler et al.·Nov 24, 2008SaveLearn
CMBPol Mission Concept Study: Reionization Science with the Cosmic Microwave BackgroundWe summarize existing constraints on the epoch of reionization and discuss the observational probes that are sensitive to the process. We focus on the role large scale polarization can play.…Matias Zaldarriaga, Loris Colombo, Eiichiro Komatsu et al.·Nov 24, 2008SaveLearn
CMBPol Mission Concept Study: Gravitational LensingGravitational lensing of the cosmic microwave background by large-scale structure in the late universe is both a source of cosmological information and a potential contaminant of primordial gravity…Kendrick M. Smith, Asantha Cooray, Sudeep Das et al.·Nov 24, 2008SaveLearn
Integral Field Spectroscopy of two radio galaxies at z~2.3In this article we study the morphology, kinematics and ionization properties of the giant ionized gas nebulae surrounding two high redshift radio galaxies, 4C40.36 (z=2.27) and 4C48.48…S. F. Sanchez, A. Humphrey·Nov 24, 2008SaveLearn
CMBPol Mission Concept Study: A Mission to Map our OriginsQuantum mechanical metric fluctuations during an early inflationary phase of the universe leave a characteristic imprint in the polarization of the cosmic microwave background (CMB). The amplitude of…Daniel Baumann, Asantha Cooray, Scott Dodelson et al.·Nov 24, 2008SaveLearn
Rotating molecular outflows: the young T Tauri star in CB26The disk-outflow connection is thought to play a key role in extracting excess angular momentum from a forming proto-star. Though jet rotation has been observed in a few objects, no rotation of…R. Launhardt, Ya. Pavlyuchenkov, F. Gueth et al.·Nov 24, 2008SaveLearn
A forming disk at z~0.6: Collapse of a gaseous disk or major merger remnant?[Abridged] We present and analyze observations of J033241.88-274853.9 at z=0.6679, using multi-wavelength photometry and imaging with FLAMES/GIRAFFE 3D spectroscopy. J033241.88-274853.9 is found to…M. Puech, F. Hammer, H. Flores et al.·Nov 24, 2008SaveLearn
STAGES: the Space Telescope A901/2 Galaxy Evolution SurveyWe present an overview of the Space Telescope A901/2 Galaxy Evolution Survey (STAGES). STAGES is a multiwavelength project designed to probe physical drivers of galaxy evolution across a wide range…M. E. Gray, Christian Wolf, Marco Barden et al.·Nov 24, 2008SaveLearn
Azimuthal dependence of the density distribution in outer galactic discs accreting intergalactic flowsAIMS. The amplitude and scaleheight of the Galactic gas disc density are not axisymmetric against expectations in a self-gravity axisymmetric disc. However, this lopsidedness can be explained in…M. Lopez-Corredoira, J. Betancort-Rijo·Nov 24, 2008SaveLearn
The STAGES view of red spirals and dusty red galaxies: Mass-dependent quenching of star-formation in cluster infallWe investigate the properties of optically passive spirals and dusty red galaxies in the A901/2 cluster complex at redshift ~0.17 using restframe near-UV-optical SEDs, 24 micron IR data and HST…Christian Wolf, Alfonso Aragon-Salamanca, Michael Balogh et al.·Nov 24, 2008SaveLearn
Cosmic Acceleration and Extra DimensionsBrane cosmology presents many interesting possibilities including: phantom acceleration (w<-1), self-acceleration, unification of dark energy with inflation, transient acceleration, loitering…Varun Sahni, Yuri Shtanov·Nov 24, 2008SaveLearn
Applications of Nash's Theorem to CosmologyThe cosmological constant problem is seen as a symptom of the ambiguity of the Riemann curvature in general relativity. The solution of that ambiguity provided by Nash's theorem on gravitational…M. D. Maia·Nov 24, 2008SaveLearn
Simultaneous multi-frequency single-pulse properties of AXP XTE J1810-197We have used the 76-m Lovell, 94-m equivalent WSRT and 100-m Effelsberg radio telescopes to investigate the simultaneous single-pulse properties of the radio emitting magnetar AXP XTE J1810-197 at…M. Serylak, B. W. Stappers, P. Weltevrede et al.·Nov 24, 2008SaveLearn
The sdB+M Eclipsing System HW Virginis and its Circumbinary PlanetsFor the very short-period sdB eclipsing binary HW Vir, we present new CCD photometry made from 2000 through 2008. In order to obtain consistency of the binary parameters, our new light curves were…Jae Woo Lee, Seung-Lee Kim, Chun-Hwey Kim et al.·Nov 24, 2008SaveLearn
Suzaku Observations of Extreme MeV Blazar SWIFT J0746.3+2548We report the Suzaku observations of the high luminosity blazar SWIFT J0746.3+2548 (J0746) conducted in November 2005. This object, with z = 2.979, is the highest redshift source observed in the…Shin Watanabe, Rie Sato, Tadayuki Takahashi et al.·Nov 24, 2008SaveLearn
Analytical Collapsing Solutions to Pressureless Navier-Stokes-Poisson Equations with Density-dependent Viscosity θ=1/2 in R2We study the 2-dimensional Navier-Stokes-Poisson equations with density-dependent viscosity θ=1/2 without pressure of gaseous stars in astrophysics. The analytical solutions with collapsing in…Manwai Yuen·Nov 24, 2008SaveLearn
Quantitative Measurements of CME-driven Shocks from LASCO ObservationsIn this paper, we demonstrate that CME-driven shocks can be detected in white light coronagraph images and in which properties such as the density compression ratio and shock direction can be…Veronica Ontiveros, Angelos Vourlidas·Nov 24, 2008SaveLearn
The influence of multiple stars on the high-mass stellar initial mass function and age-dating of young massive star clustersThe study of young stellar populations has revealed that most stars are in binary or higher order multiple systems. In this study the influence on the stellar initial mass function (IMF) of large…C. Weidner, P. Kroupa, T. Maschberger·Nov 24, 2008SaveLearn
Dependence of Interstellar Turbulent Pressure on Supernova RateFeedback from massive stars is one of the least understood aspects of galaxy formation. We perform a suite of vertically stratified local interstellar medium (ISM) simulations in which supernova…M. Ryan Joung, Mordecai-Mark Mac Low, Greg L. Bryan·Nov 23, 2008SaveLearn
Deep 15um AKARI observations in the CDFS: estimating dust luminosities for a MIR-selected sample and for Lyman Break Galaxies and the evolution of L(dust)/L(UV) with the redshiftDeep observations of the CDFS have been secured at 15um with AKARI/IRC infrared space telescope (ESA open time). From these observations, we define a sample of MIR-selected galaxies at 15um and we…Denis Burgarella, Veronique Buat, Tsutomu T. Takeuchi et al.·Nov 23, 2008SaveLearn
X-ray follow-up observations of unidentified VHE gamma-ray sourcesA large fraction of the recently discovered Galactic Very High Energy (VHE) source population remains unidentified to date. VHE gamma-ray emission traces high energy particles in these sources, but…Gerd Pühlhofer·Nov 23, 2008SaveLearn
Boson stars in the centre of galaxies?We investigate the possible gravitational redshift values for boson stars with a self-interaction, studying a wide range of possible masses. We find a limiting value of zlim 0.687 for stable…Franz E. Schunck, Andrew R. Liddle·Nov 23, 2008SaveLearn
Time-Resolved Near-Infrared Photometry of Extreme Kuiper Belt Object HaumeaWe present time-resolved near-infrared (J and H) photometry of the extreme Kuiper belt object (136108) Haumea (formerly 2003 EL61) taken to further investigate rotational variability of this object.…Pedro Lacerda·Nov 23, 2008SaveLearn
The Optical Gravitational Lensing Experiment. The OGLE-III Catalog of Variable Stars. II. Type II Cepheids and Anomalous Cepheids in the Large Magellanic CloudIn the second part of the OGLE-III Catalog of Variable Stars (OIII-CVS) we present 197 type II Cepheids and 83 anomalous Cepheids in the Large Magellanic Cloud (LMC). The sample of type II Cepheids…I. Soszynski, A. Udalski, M. K. Szymanski et al.·Nov 22, 2008SaveLearn