Results 21 to 30 of about 1,810 (211)
On the Keplerian Rotation Curves of Galaxies [PDF]
Publications of the Astronomical Society of Japan, 1997 We propose a criterion for examining whether or not the uncertainty of the outer rotation curves is sufficiently small to distinguish a Keplerian rotation curve from flat ones. We have applied this criterion to both Keplerian and non-Keplerian rotation curves so far obtained, and investigated their relative fraction.
Mareki Honma, Yoshiaki Sofue
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Rotation curves of luminous spiral galaxies [PDF]
Astronomische Nachrichten, 2011 AbstractWe have investigated the stellar light distribution and the rotation curves of high‐luminosity spiral galaxies in the local Universe. The sample contains 30 high‐quality extended Hα and H I rotation curves. The stellar disk scale‐length of these objects was measured or taken from the literature.
Ana Babić +5 more
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Rotation Curves of 967 Spiral Galaxies [PDF]
The Astrophysical Journal Supplement Series, 1995 We present the rotation curves (RCs) of 967 spiral galaxies, obtained by folding and deprojecting the raw optical data by Mathewson et al. (1992). Out of these, we have identified 80 excellent RCs and 820 fair RCs. The 80 excellent RCs are smooth, symmetric, have negligible rms internal error, extend to at least the optical radius, and have high and ...
Persic, M., Salucci, P.
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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.
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Physical properties of dark matter in galaxy U11454
Physical Sciences and Technology, 2020 In this paper physical characteristics of dark matter distribution in the spiral galaxy U11454 is exploredusing only well-known cored density profiles in the literature such as the pseudo-isothermal, Burkert,Einasto, exponential sphere, Beta and ...
K. Boshkayev
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PROBES. I. A Compendium of Deep Rotation Curves and Matched Multiband Photometry
The Astrophysical Journal Supplement Series, 2022 We present the Photometry and Rotation Curve Observations from Extragalactic Surveys (PROBES) compendium of extended rotation curves for 3163 late-type spirals, with matching homogeneous multiband photometry for 1677 of them.
Connor Stone +4 more
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Theoretical Search for Gravitational Bound States of Tachyons
Particles, 2022 The mission here is to see if we can find bound states for tachyons in some gravitational environment. That could provide an explanation for the phenomena called Dark Matter. Starting with the standard Schwarzschild metric in General Relativity, which is
Charles Schwartz
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A Severe Challenge to the Modified Newtonian Dynamics Phenomenology in Our Galaxy
The Astrophysical Journal, 2023 Modified Newtonian dynamics (MOND) is one of the most popular alternative theories of dark matter to explain the missing mass problem in galaxies. Although it remains controversial regarding MOND as a fundamental theory, MOND phenomenology has been shown
Man Ho Chan, Ka Chung Law
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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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Revisiting perfect fluid dark matter: Observational constraints from our galaxy
Physics Letters B, 2016 We revisit certain features of an assumed spherically symmetric perfect fluid dark matter halo in the light of the observed data of our galaxy, the Milky Way (MW). The idea is to apply the Faber–Visser approach of combined observations of rotation curves
Alexander A. Potapov +2 more
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