Browsing by Subject "Methods: numerical"
Now showing items 1-19 of 19
-
A gap in the planetesimal disc around HD 107146 and asymmetric warm dust emission revealed by ALMA (Oxford University Press, 2018)While detecting low mass exoplanets at tens of au is beyond current instrumentation, debris discs provide a unique opportunity to study the outer regions of planetary systems. Here we report new ALMA observations of the ...
-
(Elsevier, 2015)We model the dust evolution in protoplanetary disks with full 3D, Smoothed Particle Hydrodynamics (SPH), two-phase (gas+ dust) hydrodynamical simulations. The gas+ dust dynamics, where aerodynamic drag leads to the vertical ...
-
(Oxford Univ Press, 2015)Protoplanetary discs are now routinely observed and exoplanets, after the numerous indirect discoveries, are starting to be directly imaged. To better understand the planet formation process, the next step is the detection ...
-
(Oxford University Press, 2014)Due to their higher planet–star mass ratios, M dwarfs are the easiest targets for detection of low-mass planets orbiting nearby stars using Doppler spectroscopy. Furthermore, because of their low masses and luminosities, ...
-
(EDP Sciences, 2015)Context. Thermal emission by stochastically heated dust grains (SHGs) plays an important role in the radiative transfer (RT) problem for a dusty medium. It is therefore essential to verify that RT codes properly calculate ...
-
(IOP Publishing, 2015)Astrophysical research in recent decades has made significant progress thanks to the availability of various N-body simulation techniques. With the rapid development of high-performance computing technologies, modern ...
-
(EDP Sciences, 2019)Context. Despite the recent discovery of spiral-shaped features in protoplanetary discs in the near-infrared and millimetre wavelengths, there is still an active discussion to understand how they formed. In fact, the spiral ...
-
(Oxford, 2020)Tidal encounters in star clusters perturb discs around young protostars. In Cuello et al., we detailed the dynamical signatures of a stellar flyby in both gas and dust. Flybys produce warped discs, spirals with evolving ...
-
(Wiley & Sons, 2015)Motivated by the theoretical and observational evidence that after a major merger of gas-rich galaxies a massive gaseous disk with a SMBH binary will be formed in the nuclear region of the remnant, we study the interaction ...
-
Gap, shadows, spirals, and streamers: SPHERE observations of binary-disk interactions in GG Tauri A (EDP Science, 2020)Context. A large portion of stars is found to be part of binary or higher-order multiple systems. The ubiquity of planets found around single stars raises the question of whether and how planets in binary systems form. ...
-
(IOP Publishing, 2016)In this paper we study the impact of cosmic variance and observational uncertainties in constraining the mass and occupation fraction, f(occ), of dark matter (DM) halos hosting Ly alpha-emitting galaxies (LAEs) at high ...
-
(Oxford University Press, 2018)Empirical evidence of planets in gas-rich circumstellar discs is required to constrain giant planet formation theories. Here we study the kinematic patterns which arise from planet- disc interactions and their observability ...
-
(EDP Sciences, 2017-05)Polarization is an important tool to further the understanding of interstellar dust and the sources behind it. In this paper we describe our implementation of polarization that is due to scattering of light by spherical ...
-
(IOP, 2016)A sufficiently large temperature anisotropy can sometimes drive various types of electromagnetic plasma micro-instabilities, which can play an important role in the dynamics of relativistic pair plasmas in space, astrophysics, ...
-
(IOP Publishing, 2016)Circumstellar asymmetries such as central warps have recently been shown to cast shadows on outer disks. We investigate the hydrodynamical consequences of such variable illumination on the outer regions of a transition ...
-
(Oxford Univ Press, 2020)Using the STOKES Monte Carlo radiative transfer code, we revisit the predictions of the spectropolarimetric signal from a disc-like broad emission line region (BLR) in type I active galactic nuclei due to equatorial ...
-
(Cambridge University Press, 2016)The relation between the star-formation Rate and stellar mass (M-star) of galaxies represents a fundamental constraint on galaxy formation, and has been studied extensively both in observations and cosmological hydrodynamic ...
-
(Oxford University Press, 2020)In a previous paper, we reported simulations of the evolution of the magnetic field in neutron star (NS) cores through ambipolar diffusion, taking the neutrons as a motionless uniform background. However, in real NSs, ...
-
(EDP Sciences, 2015)We use the recently released Atacama Large Millimeter Array (ALMA) and VLT/SPHERE science verification data, together with earlier adaptive-optics images, stellar occultation, and lightcurve data to model the 3D shape and ...
