Results 161 to 170 of about 1,118 (188)
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Galaxy kinematics and gravitation
1990Two galactic length-scale modifications of the Newtonian gravity law are examined in the light of observational dynamical properties of spiral galaxies: (1) the introduction of a Yukawa-type coupling for the gravitational potential, proposed by Sanders (1986); and (2) the introduction of a 1/R correction to the Newtonian gravitational force, proposed ...
Dubal, M. R., Salucci, P., Persic, M.
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A Kinematical and Chemical Probe of the Galaxy
1997Most of the studies of the thick disk and halo populations suffer from biases due to selection effects. The proportions of these populations to be found in the solar neighbourhood are very small, and to obtain a significant sample of such rare stars, one has to select them by a criterion: kinematical (high proper motion) or chemical (metal poor).
C. Soubiran +5 more
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Kinematics of an Anaemic Cluster Galaxy
Astrophysics and Space Science, 2001We present new HI and CO data including velocity information of NGC 4548, an anaemic galaxy in the Virgo Cluster. The distribution of the atomic gas shows a ring-like structure. The HI rotation curve is deduced and can be extrapolated inwards with the help of the CO data. The derived molecular fraction decreases continuously up to a radius of about 40″
B. Vollmer +4 more
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Analysis of galaxy kinematics based on Cepheids from the Gaia DR2 Catalogue
Monthly Notices of the Royal Astronomical Society, 2021Alexey Rastorguev +2 more
exaly
Kinematical decouplings in spiral galaxies
2001Like fossils, multiple stellar and gaseous components with a misaligned or even opposite angular momentum with respect to that of their host conserve memory of processes driving galaxy formation and evolution. In disk galaxies, apart few cases like polar rings, they usually lurk to morphological inspection, they are serendipitously discovered by ...
CORSINI, ENRICO MARIA +3 more
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Kinematic lopsidedness in spiral galaxies
1999Morphological asymmetries between the approaching and receding sides in both the stellar and neutral hydrogen distribution are often observed in spiral galaxies. Here, attention is drawn to the presence of large-scale asymmetries in the kinematics of the neutral hydrogen gas. An example of such a kinematically lopsided galaxy is presented and discussed.
Schoenmakers, RHM, Swaters, RA
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Kinematics of edge-on galaxy disks
2002We have obtained optical spectra and H I maps for a sample of edge-on spirals. Together with existing photometry, this data allows us to study simultaneously the 3D structure and the kinematics of galaxy disks. This is briefly illustrated for IC 2531. A synthesis of the stellar and H I kinematics for the entire sample reveals a correlation between the ...
Kregel, M, van der Kruit, PC
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