We study the dynamical interactions of mass systems in equilibrium under their own gravity that mutually exert and experience gravitational forces. The method we employ is to model the dynamical evolution of two isolated bars, hosted within the same galactic system, under their mutual gravitational interaction. In this study, we present an
This section contains the publications database that collects IAC articles published in scientific journals. Please, click on the arrow to see full search filter and sort options: author, journal, year, etc..
It also provides access to IAC Preprints Repository here: https://research.iac.es/preprints/
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Dynamical evolution of two associated galactic barsGarzón, F. et al.102014
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Dynamics of Loop Quantum Gravity and Spin Foam Models in Three Dimensions
We present a rigorous regularization of Rovellis's generalized projection operator in canonical 2+1 gravity. This work establishes a clear-cut connection between loop quantum gravity and the spin foam approach in this simplified setting. The point of view adopted here provides a new perspective to tackle the problem of dynamics in the physically
Noui, Karim et al.Advertised on:
102004 -
Early universe constraints on time variation of fundamental constants
We study the time variation of fundamental constants in the early Universe. Using data from primordial light nuclei abundances, cosmic microwave background, and the 2dFGRS power spectrum, we put constraints on the time variation of the fine structure constant α and the Higgs vacuum expectation value ⟨v⟩ without assuming any theoretical framework. A
Landau, Susana J. et al.Advertised on:
102008 -
Early-type Galaxies in Isolation: an HI Perspective with ATLAS 3D
We present preliminary results of our HI WSRT observations of early-type galaxies in the ATLAS3D sample. We discuss the dependence of HI properties on environment. We detect HI in about half of the galaxies outside the Virgo cluster. The HI morphology/kinematics changes as a function of environment, going from regular, rotating systems around
Serra, P. et al.Advertised on:
102010 -
Echo Tomography of Sco X-1 using Bowen Fluorescence Lines
We present preliminary results of a simultaneous X-ray/optical campaign of the proto-typical LMXB Sco X-1 at 1-10 Hz time resolution. Lightcurves of the high excitation Bowen/HeII emission lines were obtained through narrow interference filters with ULTRACAM, and these were cross-correlated with X-ray lightcurves. We find evidence for correlated
Casares, J. et al.Advertised on:
102005 -
EChO. Exoplanet characterisation observatory
A dedicated mission to investigate exoplanetary atmospheres represents a major milestone in our quest to understand our place in the universe by placing our Solar System in context and by addressing the suitability of planets for the presence of life. EChO—the Exoplanet Characterisation Observatory—is a mission concept specifically geared for this
Tinetti, G. et al.Advertised on:
102012