957 citations · 14.3k across the 348 of their papers we have counts for
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Renormalization Group Flow and Fragmentation in the Self-Gravitating Thermal Gas
B. Semelin, H. J. de Vega, N. S'anchez +1
The self-gravitating thermal gas (non-relativistic particles of mass m at temperature T) is exactly equivalent to a field theory with a single scalar field phi(x) and exponential s…
Dust and Molecules at High Redshift
F. Combes
In the last years, progress has been very rapid in the domain of molecules at high redshift, and we know in better detail now the molecular and dust content in several systems beyo…
The Gas Dynamics of Shell Galaxies
F. Combes, V. Charmandaris
It is widely accepted that shell galaxies form as a result of a merger between an elliptical and a small disk galaxy. Simulations of the stellar component have shown that the shell…
Single CO Peak in NGC 5850
S. Leon, F. Combes, D. Friedli
NGC 5850 is a prototype of double-barred galaxy (Friedli et al. 1996) classified as SBb(sr) I-II (Higdon et al. 1998; Prieto et al. 1997). This kind of system is primordial to unde…
Time-scale for accretion of matter
F. Combes
Mass accretion is the key factor for evolution of galaxies. It can occur through secular evolution, when gas in the outer parts is driven inwards by dynamical instabilities, such a…
Molecular Gas in The Cartwheel Galaxy
C. Horellou, V. Charmandaris, F. Combes +3
We present the first detection of molecular gas in the Cartwheel, the prototype of a collisional ring galaxy formed in the head-on encounter of two galaxies. Until now, only very l…
Fractal Structures and Scaling Laws in the Universe: Statistical Mechanics of the Self-Gravitating Gas
H. J. de Vega, N. S'anchez, F. Combes
Fractal structures are observed in the universe in two very different ways. Firstly, in the gas forming the cold interstellar medium in scales from 10^{-4} pc till 100 pc. Secondly…
Statistics of optical warps in spiral disks
Vladimir Reshetnikov, Francoise Combes
We present a statistical study of optical warps in a sample of 540 galaxies, about five times larger than previous samples. About 40% of all late-type galaxies reveal S-shaped warp…
Fractal Structures Driven by Self-Gravity: Molecular clouds and the Universe
Francoise Combes
In the interstellar medium, as well as in the Universe, large density fluctuations are observed, that obey power-law density distributions and correlation functions. These structur…
Fractal Dimensions and Scaling Laws in the Interstellar Medium and Galaxy Distributions: a new Field Theory Approach
H. J. de Vega, N. Sánchez, F. Combes
We develop a field theoretical approach to the cold interstellar medium (ISM) and large structure of the universe. We show that a non-relativistic self- gravitating gas in thermal…
Clumpuscule Formation at High Redshift
F. Combes, D. Pfenniger
Over the last two decades, realistic studies have often concluded that the first bound objects to form can be very small, much smaller than a solar mass. After recombination, the J…
The fractal structure of the universe : a new field theory approach
H. J. de Vega, N. Sánchez, F. Combes
While the universe becomes more and more homogeneous at large scales, statistical analysis of galaxy catalogs have revealed a fractal structure at small-scales (λ< 100 h^{-1} Mpc),…