Results 1 to 10 of about 111,985 (250)
Disk Galaxy Models Driven by Stochastic Self-Propagating Star Formation
Open Astronomy, 2010 We present a model of chemical and spectrophotometric evolution of disk galaxies based on a stochastic self-propagating star formation scenario. The model incorporates galaxy formation through the process of accretion, chemical and photometric evolution ...
Mineikis T., Vansevičius V.
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Dynamics of the radio galaxy 3C 449 [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 The definitive version is available at www.blackwell-synergy.com. Copyright Blackwell Publishing DOI : 10.1046/j.1365-8711.1998.01535.xWe present ROSAT PSPC observations of the twin-jet radio galaxy 3C449.
Birkinshaw, M. +2 more
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Dark Coincidences: Small-Scale Solutions with Refracted Gravity and MOND
Universe, 2023 General relativity and its Newtonian weak field limit are not sufficient to explain the observed phenomenology in the Universe, from the formation of large-scale structures to the dynamics of galaxies, with the only presence of baryonic matter.
Valentina Cesare
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Revealing the dynamical behavior of stars in a prolate or oblate elliptical galaxy
Results in Physics, 2023 We consider the motion of a test particle (star) on the meridian plane (R,z) of an elliptical galaxy with an additional central nucleus component. The shape of the elliptical galaxy can be either prolate or oblate, or even spherical by simply changing ...
Eman M. Moneer +2 more
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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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Modified Baryonic Dynamics: two-component cosmological simulations with light sterile neutrinos [PDF]
, 2014 In this article we continue to test cosmological models centred on Modified Newtonian Dynamics (MOND) with light sterile neutrinos, which could in principle be a way to solve the fine-tuning problems of the standard model on galaxy scales while ...
Angus, GW +4 more
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A Comparison of Supermassive Black Hole Mass of NGC 4151 Using Different Methods
Passer Journal, 2020 We found a new value of supermassive black hole (SMBH) mass in the middle of type 1 Seyfert, NGC 4151 galaxy. In this Study, the image of NGC 4151 galaxy was deprojected to face-on, using spiral galaxy of face-on, and applied IRAF to calculate the ...
Ismaeel A. Al-Baidhany +8 more
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Exploring Disk Galaxy Dynamics Using IFU Data [PDF]
, 2008 In order to test the basic equations believed to dictate the dynamics of disk galaxies, we present and analyze deep two-dimensional spectral data obtained using the PPAK integral field unit for the early-type spiral systems NGC 2273, NGC 2985, NGC 3898 ...
A. Aragn-Salamanca +26 more
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The Astronomical Journal, 2023 We report VLA B-configuration observations of the H i 21 cm line on the close disk galaxy pair NGC 5595 and NGC 5597. At the angular resolution of the observations, ∼7.″1 × 4.″2, while most of the H i 21 cm in NGC 5595 and NGC 5597 has the same extent as
J. Antonio Garcia-Barreto +1 more
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The Stability of Some Galaxy Disks is Still Perplexing
The Astrophysical Journal, 2023 The problem of how some disk galaxies avoid forming bars remains unsolved. Many galaxy models having reasonable properties continue to manifest vigorous instabilities that rapidly form strong bars and no widely accepted idea has yet been advanced to ...
J. A. Sellwood, R. G. Carlberg
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