Results 11 to 20 of about 106,851 (294)
Uncertainties in galaxy rotation curves [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 Assessing the likelihood that the rotation curve of a galaxy matches predictions from galaxy formation simulations requires that the uncertainties in the circular speed as a function of radius derived from the observational data be statistically robust ...
J. Sellwood, K. Spekkens, Carter Eckel
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The Mass Distribution and Rotation Curve in the Galaxy [PDF]
, 2013 The mass distribution in the Galaxy is determined by dynamical and photometric methods. The dynamical method is based on the Virial theorem, and calculates the mass from kinematical data such as rotation velocities, velocity dispersions, and motions of ...
Y. Sofue
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The Discrepancy in Galaxy Rotation Curves
, 2019 In this work we try a new approach for dealing with the discrepancy between observed galaxy rotation curves and theoretical predictions. This new approach does not involve any changes in the current fundamental laws of nature or the addition of dark ...
R. Gomel, Tomer Zimmerman
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The unexpected diversity of dwarf galaxy rotation curves [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 We examine the circular velocity profiles of galaxies in A cold dark matter (CDM) cosmological hydrodynamical simulations from the EAGLE and LOCAL GROUPS projects and compare them with a compilation of observed rotation curves of galaxies spanning a wide
K. Oman +11 more
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The Survival of the Sagittarius Dwarf Galaxy and the Flatnessof the Rotation Curve of the Galaxy [PDF]
The Astrophysical Journal, 1998 How has the "fluffy" Sgr dwarf galaxy survived its 10-20 pericentric passages in the halo of the Milky Way for a Hubble time? The scenario that Sgr was deflected to its current orbit by the Magellanic Clouds after a rendezvous on the north Galactic pole ...
HongSheng Zhao
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THE ASYMMETRIC DRIFT AND THE ROTATION CURVE OF THE GALAXY
Odessa Astronomical Publications, 2014 Asymmetric drift in the solar neighbourhood is studied by the means of the RAVE data. The asymmetric drift correction is applied to the SDSS data to measure the rotation curve of the Milky Way in the extended solar neighbourhood.
O. Golubov
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Galaxy rotation curves in the Grumiller's modified gravity [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 The effective potential in the Grumiller's modified gravity includes the Newtonian potential and a Rindler term. The fitting to the rotation curve data of eight galaxies suggests a universal Rindler acceleration a approximate to 0.30 x 10(-10) ms(-2). We
Hai-Nan Lin +3 more
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The Rotation Curves of Galaxies [PDF]
Symposium - International Astronomical Union, 1975 Currently available data on rotation curves are reviewed. For curves derived from optical measurements the distribution of the ratios: the last measured point on a rotation curve to the optical radius of the galaxy has a median value of if Reference Catalogue radii are used and if Holmberg radii are used.
M. S. Roberts
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Dark Matter and Rotation Curves of Stars in Galaxies [PDF]
Astronomische Nachrichten, 2001 The dark matter accretion theory (around a central body) of the author on the basis of his 5-dimensional Projective Unified Field Theory (PUFT) is applied to the orbital motion of stars around the center of the Galaxy. The departure of the motion from Newtonian mechanics leads to approximately flat rotation curves being in rough accordance with the ...
Ernst Schmützer
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Detection of the Keplerian decline in the Milky Way rotation curve [PDF]
Astronomy & Astrophysics, 2023 Our position inside the Galactic disc had prevented us from establishing an accurate rotation curve, until the advent of Gaia, whose third data release (Gaia DR3) made it possible to specify it up to twice the optical radius.
Y. Jiao +6 more
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