Results 11 to 20 of about 139,273 (95)

Current data on the globular cluster Palomar 14 are not inconsistent with MOND [PDF]

, 2009
Certain types of globular clusters have the very important property that the predictions for their kinematics in the Newtonian and modified Newtonian dynamics (MOND) contexts are divergent.
Angus, Garry W., Famaey, Benoit, Gentile, Gianfranco, Kroupa, Pavel   +3 more
core   +4 more sources

Role of Gaseous Disk in the Formation of the Spiral Structure of the Milky Way Galaxy

Open Astronomy, 2016
We use observational gaseous and stellar density distributions in the disk of the Milky Way (MW) galaxy together with the disk rotation curve and measured disk velocity dispersion to build collisionless and combined collisionless-gaseous equilibrium ...
Korchagin V. I., Khoperskov S. A., Khoperskov A. V.   +2 more
doaj   +1 more source

Mapping the inner regions of the polar disk galaxy NGC4650A with MUSE [PDF]

, 2015
[abridged] The polar disk galaxy NGC4650A was observed during the commissioning of the MUSE at the ESO VLT to obtain the first 2D map of the velocity and velocity dispersion for both stars and gas.
Arnaboldi, M., Bacon, R., Coccato, L., Combes, F., de Zeeuw, T., Iodice, E., Kuntschner, H., Spavone, M., Weilbacher, P. M.   +8 more
core   +4 more sources

Testing the equivalence principle through freely falling quantum objects [PDF]

, 1996
Free fall in a uniform gravitational field is revisited in the case of quantum states with and without classical analogue. The interplay between kinematics and dynamics in the evolution of a falling quantum test particle is discussed allowing for a ...
Onofrio, Roberto, Viola, Lorenza
core   +2 more sources

Morphologies arising from the gas flow in the innermost kiloparsec of barred galaxy models

Astronomy & Astrophysics
Context. We study a series of response models to investigate the formation of specific morphological features in the central 1 kpc region of the gas component in barred spiral galaxies. Aims. We aim to understand how structures, such as nuclear rings and
Pastras S., Patsis P. A., Athanassoula E.   +2 more
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Mass Distribution and Gravitational Potential of the Milky Way

Open Astronomy, 2017
Models of mass distribution in the Milky Way are discussed where those yielding the potential analytically are preferred. It is noted that there are three main contributors to the Milky Way potential: bulge, disc and dark halo.
Ninković Slobodan
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On the application of a particular form of the gravitational potential [PDF]

Serbian Astronomical Journal, 2003
A formula, already existing in the literature, describing the gravitational potential of a spherically symmetric stellar system is analyzed. Some interesting cases of comparison with empirical formulae are presented. A good agreement is found.
Ninković Slobodan D.
doaj   +1 more source

Affine symmetry in mechanics of collective and internal modes. Part I. Classical models

, 2008
Discussed is a model of collective and internal degrees of freedom with kinematics based on affine group and its subgroups. The main novelty in comparison with the previous attempts of this kind is that it is not only kinematics but also dynamics that is
A. Martens, A. Sławianowska, Abraham, Arnold, B. Gołubowska, Binz, Bogoyavlensky, Bohr, Calogero, Capriz, Capriz, Capriz, Capriz, Capriz, Chandrasekhar, Dyson, E.E. Rożko, Ebin, Ebin, Eringen, Eringen, Frackiewicz, Goldstein, Gołubowska, Gołubowska, Gołubowska, Gołubowska, Gołubowska, Gutowski, Hermann, Hermann, J.J. Sławianowski, Kobayashi, Kossecka, Landau, Landau, Mariano, Mariano, Marsden, Marsden, Marsden, Marsden, Martens, Martens, Martens, Moser, Moser, Ratiu, Roberts, Synge, Sławianowska, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Sławianowski, Toda, Trimarco, V. Kovalchuk, Westpfahl, Wojtyński, Wulff, Z.J. Zawistowski, Zhelobenko, Zhelobenko   +83 more
core   +1 more source

A new look at loop quantum gravity [PDF]

, 2010
I describe a possible perspective on the current state of loop quantum gravity, at the light of the developments of the last years. I point out that a theory is now available, having a well-defined background-independent kinematics and a dynamics ...
Alesci E, Ashtekar A, Ashtekar A, Bahr B, Barrett J W, Barrett J W Dowdall R J Fairbairn W J Gomes H Hellmann F, Barrett J W Dowdall R J Fairbairn W J Hellmann F Pereira R, Bianchi E, Bianchi E, Bianchi E, Bianchi E Donà P Speziale S, Bojowald M, Bonzom V, Carlo Rovelli, Colosi D, Ding Y, Ding Y, Dittrich B Ryan J P, Flori C, Flori C Thiemann T, Freidel L, Freidel L Speziale S, Giesel K, Henderson A Rovelli C Vidotto F Wilson-Ewing E, Kaminski W, Kaminski W, Oeckl R, Oriti D, Oriti D Tlas T, Penrose R, Pereira R, Rivasseau V, Rovelli C, Rovelli C, Rovelli C, Rovelli C Smerlak M, Thiemann T   +36 more
core   +5 more sources

Parameters of Six Selected Galactic Potential Models

Open Astronomy, 2017
This paper is devoted to the refinement of the parameters of the six three-component (bulge, disk, halo) axisymmetric Galactic gravitational potential models on the basis of modern data on circular velocities of Galactic objects located at distances up ...
Bajkova Anisa, Bobylev Vadim
doaj   +1 more source