A New Atmospheric Model for HD 189733 bWe have developed a new two-dimensional hydrostatically-balanced isobaric hydrodynamic model for use in simulation of exoplanetary atmospheres. We apply this model to the infrared photosphere of the…Jonathan Langton, Gregory Laughlin·Aug 22, 2008SaveLearn
The Photometric Variability of HH 30HH 30 is an edge-on disk around a young stellar object. Previous imaging with the Hubble Space Telescope has show morphological variability that is possibly related to the rotation of the star or the…Alan M. Watson, María Carolina Durán-Rojas, Karl R. Stapelfeldt·Aug 22, 2008SaveLearn
Searching for Very-High-Energy Gamma-Ray Bursts from Evaporating Primordial Black HolesTemporal and energy characteristics of the very-high-energy gamma-ray bursts from evaporating primordial black holes have been calculated by assuming that the photospheric and chromospheric effects…V. B. Petkov, E. V. Bugaev, P. A. Klimai et al.·Aug 22, 2008SaveLearn
Pairing of Supermassive Black Holes in unequal-mass mergersDisk galaxies with a spheroidal component are known to host Supermassive Black Holes (SMBHs) in their center. Unequal-mass galaxy mergers have been rarely studied despite the fact that they are the…S. Callegari, L. Mayer, S. Kazantzidis·Aug 22, 2008SaveLearn
Quantifying and containing the curse of high resolution coronal imagingFuture missions such as Solar Orbiter (SO), InterHelioprobe, or Solar Probe aim at approaching the Sun closer than ever before, with on board some high resolution imagers (HRI) having a subsecond…Véronique Delouille, Pierre Chainais, Jean-François Hochedez·Aug 22, 2008SaveLearn
A seismic approach to testing different formation channels of subdwarf B starsThere are many unknowns in the formation of subdwarf B stars. Different formation channels are considered to be possible and to lead to a variety of helium-burning subdwarfs. All seismic models to…Haili Hu, M. -A. Dupret, C. Aerts et al.·Aug 22, 2008SaveLearn
Difference in Narrow Emission Line Spectra of Seyfert 1 and 2 galaxiesIn the unification scheme of Seyfert galaxies, a dusty torus blocks the continuum source and broad line region in Seyfert 2 galaxies. However it is not clear whether or not and to what extent the…Kai Zhang, Tinggui Wang, Xiaobo Dong et al.·Aug 22, 2008SaveLearn
Color-Inclination Relation of the Classical Kuiper Belt ObjectsWe re-examine the correlation between the colors and the inclinations of the Classical Kuiper Belt Objects (CKBOs) with an enlarged sample of optical measurements. The correlation is strong…Nuno Peixinho, Pedro Lacerda, David Jewitt·Aug 22, 2008SaveLearn
AKARI IRC survey of the Large Magellanic Cloud: Outline of the survey and initial resultsWe observed an area of 10 deg2 of the Large Magellanic Cloud using the Infrared Camera on board AKARI. The observations were carried out using five imaging filters (3, 7, 11, 15, and 24 micron) and…Yoshifusa Ita, Takashi Onaka, Daisuke Kato et al.·Aug 22, 2008SaveLearn
Microlensing Zone of Planets Detectable through the Channel of High-Magnification EventsA microlensing lensing zone refers to the range of planet-star separations where the probability of detecting a planetary signal is high. Its conventional definition as the range between 0.6…Cheongho Han·Aug 22, 2008SaveLearn
Properties of protostars in the Elephant Trunk globule IC 1396AExtremely red objects, identified in the early Spitzer Space Telescope observations of the bright-rimmed globule IC 1396A and photometrically classified as Class I protostars Class II T Tauri stars…William T. Reach, Dohy Faied, Jeonghee Rho et al.·Aug 22, 2008SaveLearn
The Palomar/Keck Adaptive Optics Survey of Young Solar Analogs: Evidence for a Universal Companion Mass FunctionWe present results from an adaptive optics survey for substellar and stellar companions to Sun-like stars. The survey targeted 266 F5-K5 stars in the 3Myr to 3Gyr age range with distances of…Stanimir Metchev, Lynne Hillenbrand·Aug 21, 2008SaveLearn
Quantifying the heart of darkness with GHALO - a multi-billion particle simulation of our galactic haloWe perform a series of simulations of a Galactic mass dark matter halo at different resolutions, our largest uses over three billion particles and has a mass resolution of 1000 Msun. We quantify the…Joachim Stadel, Doug Potter, Ben Moore et al.·Aug 21, 2008SaveLearn
Measurement of the solar 8B neutrino rate with a liquid scintillator target and 3 MeV energy threshold in the Borexino detectorWe report the measurement of electron neutrino elastic scattering from 8B solar neutrinos with 3 MeV energy threshold by the Borexino detector in Gran Sasso (Italy). The rate of solar…The Borexino Collaboration·Aug 21, 2008SaveLearn
Discovery of the Ultra-Bright Type II-L Supernova 2008esWe report the discovery by the Robotic Optical Transient Experiment (ROTSE-IIIb) telescope of SN 2008es, an overluminous supernova (SN) at z=0.205 with a peak visual magnitude of -22.2. We present…S. Gezari, J. P. Halpern, D. Grupe et al.·Aug 21, 2008SaveLearn
Constraining the Surface Inhomogeneity and Settling Times of Metals on Accreting White DwarfsDue to the short settling times of metals in DA white dwarf atmospheres, any white dwarfs with photospheric metals must be actively accreting. It is therefore natural to expect that the metals may…M. H. Montgomery, S. E. Thompson, T. von Hippel·Aug 21, 2008SaveLearn
Can Early Dark Energy be Detected in Non-Linear Structure?We present the first study of early dark energy cosmologies using N-body simulations to investigate the formation of non-linear structure. In contrast to expectations from semi-analytic approaches,…Matthew J. Francis, Geraint F. Lewis, Eric V. Linder·Aug 21, 2008SaveLearn
The mid-infrared colour-magnitude relation of early-type galaxies in the Coma cluster as measured by Spitzer-IRSWe use 16 micron, Spitzer-IRS, blue peakup photometry of 50 early-type galaxies in the Coma cluster to define the mid-infrared colour-magnitude relation. We compare with recent simple stellar…M. S. Clemens, A. Bressan, P. Panuzzo et al.·Aug 21, 2008SaveLearn
On the role of pressure anisotropy for relativistic stars admitting conformal motionWe investigate the spacetime of anisotropic stars admitting conformal motion. The Einstein field equations are solved using different ansatz of the surface tension. In this investigation, we study…Farook Rahaman, Mubasher Jamil, Mehedi Kalam et al.·Aug 21, 2008SaveLearn
Three-Dimensional Simulations of Magnetized Thin Accretion Disks around Black Holes: Stress in the Plunging RegionWe describe three-dimensional general relativistic magnetohydrodynamic simulations of a geometrically thin accretion disk around a non-spinning black hole. The disk has a thickness h/r0.05-0.1…Rebecca Shafee, Jonathan C. McKinney, Ramesh Narayan et al.·Aug 21, 2008SaveLearn
Hemispherical power asymmetry: parameter estimation from CMB WMAP5 dataWe reexamine the evidence of the hemispherical power asymmetry, detected in the CMB WMAP data using a new method. At first, we analyze the hemispherical variance ratios and compare these with…Bartosz Lew·Aug 21, 2008SaveLearn
The Rise of the VulcansIn this introductory review presented at the IAU Symposium 253 "Transiting Planets", I summarize the path from the initial 1995 radial-velocity discovery of hot Jupiters to the current rich…David Charbonneau·Aug 21, 2008SaveLearn
Extending Recovery of the Primordial Matter Power SpectrumThe shape of the primordial matter power spectrum Plin(k) encodes critical information on cosmological parameters. At large scales, the observable galaxy power spectrum Pobs(k) is expected to follow…Jaiyul Yoo, David H. Weinberg, Jeremy L. Tinker et al.·Aug 21, 2008SaveLearn
The moderate magnetic field on the flare star Proxima CentauriWe report moderate magnetic flux of 450G < Bf < 750G (3sigma) on the nearby M5.5 flare star Proxima Centauri. A high resolution UVES spectrum was used to measure magnetic flux from Zeeman broadening…Ansgar Reiners, Gibor Basri·Aug 21, 2008SaveLearn
Strength of Coronal Mass Ejection-Driven Shocks Near the Sun, and Its Importance in Predicting Solar Energetic Particle EventsCoronal shocks are important structures, but there are no direct observations of them in solar and space physics. The strength of shocks plays a key role in shock-related phenomena, such as radio…Chenglong Shen, Yuming Wang, Pinzhong Ye et al.·Aug 21, 2008SaveLearn