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Dec 11, 2013

In Appendix A we show that we do not have to consider the second term in Eq. (15a), defined by (17), since it contributes only at integral PN orders (4PN, 5PN, 6PN, etc.). This situation is fortunate: We have obtained this term only in the form of a…

Half-integral conservative post-Newtonian approximations in the redsh…

Recent perturbative self-force computations (Shah, Friedman & Whiting, submitted to Phys. Rev. {\bf D}, arXiv:1312.1952 [gr-qc]), both numerical and …
May 09, 2017

Time evolution of the spectral break in the high-energy extra compone…

We report on a new time-resolved analysis of the GRB 090926A broad-band spectrum during its prompt phase, and on its interpretation in the framework …
Oct 18, 2012

Efficient Wiener filtering without preconditioning

We present a new approach to calculate the Wiener filter solution of general data sets. It is trivial to implement, flexible, numerically absolutely …
Jan 08, 2013

From configuration to dynamics -- Emergence of Lorentz signature in …

The Lorentzian metric structure used in any field theory allows one to implement the relativistic notion of causality and to define a notion of time …
Feb 16, 2010

Collapse of Small-Scale Density Perturbations during Preheating in …

After cosmic inflation and before the transition to radiation domination, the cosmic energy density may have been dominated during an extended period…
May 25, 2009

Relative frequencies of supernovae types: dependence on host galaxy …

Context: Stellar evolution theory suggests that the relationship between number ratios of supernova (SN) types and metallicity holds important clues …
Jan 14, 2009

Ground-based secondary eclipse detection of the very-hot Jupiter OG…

We report on the detection of the secondary eclipse of the very-hot Jupiter OGLE-TR-56b from combined z-band time series photometry obtained with the…
Mar 26, 2014

Standard big bang nucleosynthesis and primordial CNO Abundances after…

Primordial or big bang nucleosynthesis (BBN) is one of the three historical strong evidences for the big bang model. The recent results by the Planck…
Jan 05, 2019

Black hole obscuration and duty cycles mediated by AGN feedback in hi…

Dense gas in the centre of galaxies feeds massive black holes, but can also become a source of obscuration and limit our ability to find faint Active…
Aug 16, 2007

An approximate theory for substructure propagation in clusters

The existence of dark matter can be proved in an astrophysical context by the discovery of a system in which the observed baryons and the inferred da…
Jul 24, 2008

Spectral, Spatial, and Time properties of the hydrogen nebula around …

All far ultraviolet observations of HD209458 tend to support a scenario in which the inflated hydrogen atmosphere of its planetary companion strongly…
Sep 24, 2015
Computational Physics
Computational Geometry
Fluid Dynamics

ColDICE: a parallel Vlasov-Poisson solver using moving adaptive sim…

Resolving numerically Vlasov-Poisson equations for initially cold systems can be reduced to following the evolution of a three-dimensional sheet evol…
Dec 27, 2017

Evolution of the cluster optical galaxy luminosity function in the …

Obtaining large samples of galaxy clusters is important for cosmology, since cluster counts as a function of redshift and mass can constrain the para…
Dec 18, 2018

Analytic Approximations in GR and Gravitational Waves

Analytic approximation methods in general relativity play a very important role when analyzing the gravitational wave signals recently discovered by …
Jan 29, 2009

TEASING: a fast and accurate approximation for the low multipole li…

We explore the low-l likelihood of the angular spectrum C(l) of masked CMB temperature maps using an adaptive importance sampler. We find that, in sp…
Feb 10, 2015

On the cosmic evolution of the specific star formation rate

The apparent correlation between the specific star formation rate (sSFR) and total stellar mass (M_star) of galaxies is a fundamental relationship in…
May 24, 2017

Simplified galaxy formation with mesh-less hydrodynamics

Numerical simulations have become a necessary tool to describe the complex interactions among the different processes involved in galaxy formation an…
Dec 01, 2016

Exploring Cosmic Origins with CORE: Cosmological Parameters

We forecast the main cosmological parameter constraints achievable with the CORE space mission which is dedicated to mapping the polarisation of the …
Jul 01, 2010

The Earth as an extrasolar transiting planet: Earth's atmospheric c…

An important goal within the quest for detecting an Earth-like extrasolar planet, will be to identify atmospheric gaseous bio-signatures. Observation…
Jul 25, 2013

Next-to-leading tail-induced spin-orbit effects in the gravitational …

The imprint of non-linearities in the propagation of gravitational waves --- the tail effect --- is responsible for new spin contributions to the ene…
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