New multisite observations of Delta Scuti stars V624 Tauri and HD 23194The preliminary results of STEPHI 2006 campaign are reported.L. Fox Machado, E. Michel, M. Chevreton et al.·Sep 27, 2008SaveLearn
Star Forming Regions in CepheusThe northern Milky Way in the constellation of Cepheus (100 deg < l < 120 deg; 0 deg < b < 20 deg) contains several star forming regions. The molecular clouds of the Cepheus Flare region at b > 10…M. Kun, Z. T. Kiss, Z. Balog·Sep 27, 2008SaveLearn
Star Forming Regions in CassiopeiaThis chapter describes the Galactic star forming regions in the constellation Cassiopeia, in the Galactic coordinate range 120 deg < l < 130 deg, -5 deg < b < +15 deg. At b > 10 deg the nearby clouds…M. Kun·Sep 27, 2008SaveLearn
Tracking of supergranules - Does it make any sense?The motions of the plasma and structures in and below the solar photosphere is not well understood. The results obtained using various methods cannot be in general considered as consistent,…M. Svanda, M. Klvana, M. Sobotka·Sep 27, 2008SaveLearn
Early spectroscopy and photometry of the new outburst of V1647 OriBroad-band photometric and moderate-resolution spectroscopic observations of the young eruptive star V1647 Ori, obtained between 28 August and 1 September 2008, are presented. The observed magnitudes…M. Kun·Sep 27, 2008SaveLearn
Lynds 1622: a nearby star forming cloud projected on Orion B?We present results of optical spectroscopic and photometric observation of the pre-main sequence stars associated with the cometary shaped dark cloud Lynds 1622, and 12CO and 13CO observations of the…M. Kun, Z. Balog, N. Mizuno et al.·Sep 27, 2008SaveLearn
X-ray observations of IC348 in light of an updated cluster censusIC348 is an excellent laboratory for studies of low-mass star formation being nearby, compact and rich. A Chandra observation was carried out early in the satellite's lifetime. The extensive new…B. Stelzer, G. Micela, E. Flaccomio et al.·Sep 27, 2008SaveLearn
CMB Lensing and the WMAP Cold SpotCosmologists have suggested a number of intriguing hypotheses for the origin of the "WMAP cold spot", the coldest extended region seen in the CMB sky, including a very large void and a…Sudeep Das, David N. Spergel·Sep 26, 2008SaveLearn
Massive B-type pulsators in low-metallicity environmentsMassive B type pulsators such as beta Cep and slowly pulsating B (SPB) stars pulsate due to layers of increased opacity caused by partial ionization. The increased opacity blocks the energy flux to…C. Karoff, T. Arentoft, L. Glowienka et al.·Sep 26, 2008SaveLearn
Non-linear isocurvature perturbations and non-GaussianitiesWe study non-linear primordial adiabatic and isocurvature perturbations and their non-Gaussianity. After giving a general formulation in the context of an extended delta N-formalism, we analyse in…David Langlois, Filippo Vernizzi, David Wands·Sep 26, 2008SaveLearn
Extrasolar planets and brown dwarfs around A-F type stars VI. High precision RV survey of early type dwarfs with HARPS(Abridged) Aims: Systematic surveys to search for exoplanets have been mostly dedicated to solar-type stars sofar. We developed in 2004 a method to extend such searches to earlier A-F type dwarfs and…A. -M. Lagrange, M. Desort, F. Galland et al.·Sep 26, 2008SaveLearn
Generation of Vorticity and Velocity Dispersion by Orbit CrossingWe study the generation of vorticity and velocity dispersion by orbit crossing using cosmological numerical simulations, and calculate the backreaction of these effects on the evolution of…Sebastian Pueblas, Roman Scoccimarro·Sep 26, 2008SaveLearn
On a possible connection between Chandler wobble and dark matterChandler wobble excitation and damping, one of the open problems in geophysics, is treated as a consequence in part of the interaction between Earth and a hypothetical oblate ellipsoid made of dark…Oyanarte Portilho·Sep 26, 2008SaveLearn
Hubble Space Telescope Imaging of the Expanding Nebular Remnant of the 2006 Outburst of RS OphiuchiWe report Hubble Space Telescope imaging obtained 155 days and 449 days after the 2006 outburst of RS Ophiuchi. Both epochs show evidence of extended emission, consistent with that seen in…D. J. Harman, M. F. Bode, M. J. Darnley et al.·Sep 26, 2008SaveLearn
The dramatic size evolution of elliptical galaxies and the quasar feedbackObservations have evidenced that passively evolving massive galaxies at high redshift are much more compact than local galaxies with the same stellar mass. We argue that the observed strong evolution…L. Fan, A. Lapi, G. De Zotti et al.·Sep 26, 2008SaveLearn
Reconstruction of the primordial fluctuation spectrum from the five-year WMAP data by the cosmic inversion method with band-power decorrelation analysisThe primordial curvature fluctuation spectrum is reconstructed by the cosmic inversion method using the five-year WMAP data of the cosmic microwave background temperature anisotropy. We apply the…Ryo Nagata, Jun'ichi Yokoyama·Sep 26, 2008SaveLearn
Damping of the baryon acoustic oscillations in the matter power spectrum as a probe of the growth factorWe investigate the damping of the baryon acoustic oscillations (BAO) signature in the matter power spectrum due to the quasi-nonlinear clustering of density perturbations. On the basis of the third…Hidenori Nomura, Kazuhiro Yamamoto, Takahiro Nishimichi·Sep 26, 2008SaveLearn
Correlative Spectral Analysis of Gamma-Ray Bursts using Swift-BAT and GLAST-GBMWe discuss the preliminary results of spectral analysis simulations involving anticipated correlated multi-wavelength observations of gamma-ray bursts (GRBs) using Swift's Burst Alert Telescope…Michael Stamatikos, Takanori Sakamoto, David L. Band·Sep 26, 2008SaveLearn
New Calculations of Stellar Wind TorquesUsing numerical simulations of magnetized stellar winds, we carry out a parameter study to find the dependence of the stellar wind torque on observable parameters. We find that the power-law…Sean P. Matt, Ralph E. Pudritz·Sep 26, 2008SaveLearn
A Deep XMM-Newton Observation of the Quasar 3C 287We report on an XMM-Newton observation of the z=1.055 quasar and Giga-hertz Peaked Spectrum (GPS) source 3C 287. Our 62.3 ksec observation provides an exceptional X-ray view of a prominent member of…G. Salvesen, J. M. Miller, E. Cackett et al.·Sep 26, 2008SaveLearn
Jet breaks at the end of the slow decline phase of Swift GRB lightcurvesThe Swift mission has discovered an intriguing feature of Gamma-Ray Burst (GRBs) afterglows, a phase of shallow decline of the flux in the X-ray and optical lightcurves. This behaviour is typically…M. De Pasquale, P. Evans, S. Oates et al.·Sep 26, 2008SaveLearn
Approaching the event horizon: 1.3mm VLBI of SgrA*Advances in VLBI instrumentation now allow wideband recording that significantly increases the sensitivity of short wavelength VLBI observations. Observations of the super-massive black hole…Sheperd S. Doeleman·Sep 26, 2008SaveLearn
The Distances of SNRs Kes 69 and G21.5-0.9 from HI and 13CO SpectraWe obtain new HI and 13CO images around Supernova Remnants (SNR) Kes 69 and G21.5-0.9. By comparing HI spectra with 13CO emission spectra, we significantly revise the kinematic distance for…Wenwu Tian, Denis A. Leahy·Sep 26, 2008SaveLearn
The Atmospheres of Extrasolar PlanetsThe characteristics of irradiated solar system planetary atmospheres have been studied for decades, consequently modern planetary science benefits from an exhaustive body of ground- and space-based…Mark S. Marley·Sep 26, 2008SaveLearn
Suzaku Observations of the Circinus galaxyWe report Suzaku observations of the active, Compton-thick Circinus galaxy. Observations were obtained with both the X-ray Imaging spectrometer (XIS) and the Hard X-ray Detector (HXD). Below 10 keV,…Y. Yang, A. S. Wilson, G. Matt et al.·Sep 26, 2008SaveLearn