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Listar por palabra clave "Gravitation"

Mostrando ítems 1-6 de 6

Cosmic Background Bose Condensation (CBBC)

Alfonso-Faus, Antonio; Fullana Alfonso, Màrius Josep (Springer Verlag (Germany), 2013-05-30)

Degeneracy effects for bosons are more important for smaller particle mass, smaller temperature and higher number density. Bose condensation requires that particles be in the same lowest energy quantum state. We propose a ...
Imágenes en fuga*. Entropía, incertidumbre y gravitación en el análisis estético de la producción de sentido visual (Reflexiones sobre un texto de Robert Smithson)

Maldonado Gómez, José (Universitat Politècnica de València, 2019-09-30)

[EN] In Artforum art magazine (June 1966) Robert Smithson (New Jersey, 1938) writes a disturbing and radical essay entitled Entropy and the new monuments. The essay analyzes the work of a series of artists and the conceptions ...
Polarimetry and astrometry of NIR flares as event horizon scale, dynamical probes for the mass of Sgr A*

Abuter, R.; Aimar, N.; Amaro-Seoane, Pau; Amorim, A.; Bauböck, M.; Berger, J.P.; Bonnet, H.; Bourdarot, G.; Brandner, W.; Cardoso, V.; Clenet, Y.; Davies, R.; de Zeeuw, P.T.; Dexter, J.; Drescher, A (EDP Sciences, 2023-09-06)

[EN] We present new astrometric and polarimetric observations of flares from Sgr A* obtained with GRAVITY, the near-infrared interferometer at ESO's Very Large Telescope Interferometer (VLTI), bringing the total sample of ...
Seeable universe and its accelerated expansion: an observational test

Alfonso-Faus, Antonio; Fullana Alfonso, Màrius Josep (Springer Verlag (Germany), 2013-07-01)

From the equivalence principle, one gets the strength of the gravitational effect of a mass M on the metric at position r from it. It is proportional to the dimensionless parameter beta (2)=2GM/rc (2), which normally is a ...
Using the motion of S2 to constrain vector clouds around Sgr A

Foschi, A.; Abuter, R.; Abd El Dayem, K.; Aimar, R.; Amaro-Seoane, Pau; Amorim, A.; Berger, J.P.; Bonnet, H.; Bourdarot, G.; Brandner, W.; Davies, R.; de Zeeuw, P. T.; Defrére, D.; Dexter, J.; Drescher, A. (Oxford University Press, 2024-05-06)

[EN] The dark compact object at the centre of the Milky Way is well established to be a supermassive black hole with mass M-center dot similar to 4.3 x 10(6) M-circle dot, but the nature of its environment is still under ...
Where intermediate-mass black holes could hide in the Galactic Centre. A full parameter study with the S2 orbit

Straub, O.; Bauböck, M.; Abuter, R.; Aimar, N.; Amaro-Seoane, Pau; Amorim, A.; Berger, J.P.; Bonnet, H.; Bourdarot, G.; Brandner, W.; Cardoso, V.; Clenet, Y.; Dallilar, Y.; Davies, R.; de Zeeuw, P.T. (EDP Sciences, 2023-03-31)

[EN] Context. In the Milky Way the central massive black hole, Sgr A*, coexists with a compact nuclear star cluster that contains a sub-parsec concentration of fast-moving young stars called S-stars. Their location and age ...