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CMB statistics in noncommutative inflation
Cosmological inflation Statistical anisotropy of the cosmic microwave background Scale-dependent non-Gaussianity
2010/11/12
Noncommutative geometry can provide effective description of physics at very short distances taking into account generic effects of quantum gravity. Inflation amplifies tiny quantum fluctuations in th...
Deep Near-Infrared Survey of the Pipe Nebula II: Data, Methods, and Dust Extinction Maps
ISM clouds – infrared ISM –stars formation
2010/11/11
We present a new set of high resolution dust extinction maps of the nearby and essentially
starless Pipe Nebula molecular cloud. The maps were constructed from a concerted deep nearinfrared imaging s...
Formation of Early Water Oceans on Rocky Planets
ocean magma ocean water planet atmosphere
2010/11/15
Terrestrial planets, with silicate mantles and metallic cores, are likely to obtain water and
carbon compounds during accretion. Here I examine the conditions that allow early formation of a surface ...
The HARPS search for southern extrasolar planets XXV. Results from the metal-poor sample
planets and satellites formation – Stars abundances – planetary systems – Techniques spectroscopic – Techniques
2010/11/12
Searching for extrasolar planets around stars of different metallicity may provide strong constraints to the models of planet formation and evolution. In this paper we present the overall results of a...
Wild at Heart:-The Particle Astrophysics of the Galactic Centre
cosmic rays { galaxies star formation { Galaxy center { ISM
2010/11/9
We treat of the high-energy astrophysics of the inner 200 pc of the Galaxy. Our modelling of this region shows that the supernovae exploding here every few thousand years inject enough power to i) su...
The Mass Distribution of Stellar-Mass Black Holes
Mass Distribution Stellar-Mass Black Holes
2010/11/11
We perform a Bayesian analysis of the mass distribution of stellar-mass black holes using the observed masses of 15 low-mass X-ray binary systems undergoing Roche lobe overflow and five high-mass, win...
Deuterated formaldehyde in rho Ophiuchi A
astrochemistry – ISM abundances – ISM clouds – ISM individual objects ρ Oph A – ISM molecules
2010/11/16
Context. Formaldehyde is an organic molecule that is abundant in the interstellar medium. High deuterium fractionation is a common feature in low-mass star-forming regions. Observing several isotopolo...
Chemistry in Evaporating Ices: Unexplored Territory
astrochemistry – ISM molecules ISM clouds
2010/11/15
We suggest that three–body chemistry may occur in warm high density gas evaporating in transient co–desorption events on interstellar ices. Using a highly idealised computational model we explore the ...
The mass-loss rates and molecular abundances of S-type AGB stars
mass-loss rates molecular abundances of S-type AGB stars
2010/11/12
The S-type stars are believed to have a C/O-ratio close to unity (within a few percent). They are considered to represent an intermediate evolutionary stage as AGB stars evolve from oxygen-rich M-type...
CS Lines Profiles in Hot Cores
astrochemistry—line profiles—methods numerical—stars formation—ISM
2010/11/11
We present a theoretical study of CS line profiles in archetypal hot cores. We provide estimates of line fluxes from the CS(1-0) to the CS(15-14) transitions and present the temporal variation of thes...
Galaxy clustering and projected density profiles as traced by satellites in photometric surveys: Methodology and luminosity dependence
Galaxy clustering projected density profiles photometric surveys
2010/11/12
We develop a new method which measures the projected density distribution wp(rp)n of photometric galaxies surrounding a set of spectroscopically-identified galaxies, and simultaneously the projected c...
Intracluster supernovae in the Multi-epoch Nearby Cluster Survey
Intracluster supernovae Multi-epoch Nearby Cluster Survey
2010/11/11
The Multi-Epoch Nearby Cluster Survey (MENeaCS) has discovered twenty-two cluster Type Ia
supernovae (SNe) in the 58 X-ray selected galaxy clusters (0.05. z .0.15) surveyed. Four of our
SN Ia events...
Instruments of RT-2 Experiment onboard CORONAS-PHOTON and their test and evaluation I: Ground calibration of RT-2/S and RT-2/G
Scintillation detectors · X
2010/11/16
Phoswich detectors (RT-2/S & RT-2/G) are major scientific payloads of the RT-2 Experiment onboard the CORONAS-PHOTON mission, which was launched into a polar Low Earth Orbit of around 550 km on 2009 J...
The black hole in NGC 1313 X-2
galaxies NGC 1313 – stars individual (NGC 1313 X-2) – X-rays binaries – X-rays galaxies – X-rays
2010/11/12
The amount of data available for NGC 1313 X-2 make it a cornerstone for the study of ultraluminous X-ray sources(ULXs). We modelled the optical and X-ray data of this ULX with a binary evolution code ...
Simulating Heliospheric and Solar Particle Diffusion using the Parker Spiral Geometry
Simulating Heliospheric Solar Particle Diffusion Parker Spiral Geometry
2010/11/16
Cosmic Ray transport in curved background magnetic fields is investigated using numerical Monte-Carlo simulation techniques. Special emphasis is laid on the So-lar system, where the curvature of the m...