Results 1 to 10 of about 73,696 (222)
GALACTIC WARPS IN TRIAXIAL HALOS [PDF]
The Astrophysical Journal, 2009 We study the behaviors of galactic disks in triaxial halos both numerically and analytically to see if warps can be excited and sustained in triaxial potentials. We consider the following two scenarios: 1) galactic disks that are initially tilted relative to the equatorial plane of the halo (for a pedagogical purpose), and 2) tilted infall of dark ...
Myoungwon Jeon +2 more
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Time evolution of galactic warps in prolate haloes [PDF]
, 2000 A recent observation with the Hipparcos satellite and some numerical simulations imply that the interaction between an oblate halo and a disc is inappropriate for the persistence of galactic warps. Then, we have compared the time evolution of galactic warps in a prolate halo with that in an oblate halo. The haloes were approximated as fixed potentials,
Makoto Ideta +3 more
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Comparison of a new type of Dark Matter with the Milky Way and M31 grand rotation curves [PDF]
Scientific ReportsIn the electron Born self-energy (eBse) model, free electrons are of finite-size and possess both a rest mass, m e , as well as, a Born mass, m e B = 74,000 m e .
Bruce M. Law
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Galactic Wormhole under Lovelock Gravity
Universe, 2022 We explore wormhole geometry in spiral galaxies under the third order Lovelock gravity. Using the cubic spline interpolation technique, we find the rotational velocity of test particles in the halo region of our spiral galaxy from observed values of ...
Koushik Chakraborty +4 more
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The Astrophysical Journal, 2023 The CHIME/FRB project has detected hundreds of fast radio bursts (FRBs), providing an unparalleled population to statistically probe the foreground media that they illuminate. One such foreground medium is the ionized halo of the Milky Way (MW).
Amanda M. Cook +27 more
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Bubbles in the galactic haloes [PDF]
Astronomical & Astrophysical Transactions, 2001 11 pages, 4 Figs, Talk at the JENAM, May 29 -- June 3, 2000 ...
A. Schroeer +3 more
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Pressure at the ISM-halo interface: A reheating frequency dependence [PDF]
Serbian Astronomical Journal, 1998 The dependence of the thermal pressure of hot galactic halos on a model parameter describing the frequency of major reheating episodes during galactic history is investigated.
Ćirković M.M.
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International Astronomical Union Colloquium, 1997 AbstractWe find indications for diffuse HI gas at substantial z heights in our Galaxy, with a velocity dispersion of 60 km s−1 and a vertical projected column density of 1.41019 cm−2. This pervasive component of the emission spectrum could be identified in the Leiden/Dwingeloo 21 cm Survey (LDS) after increasing the accuracy further by correcting the ...
G. Westphalen +4 more
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The Galactic halo pulsar population [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 Most population studies of pulsars have hitherto focused on the disc of the Galaxy, the Galactic centre, globular clusters, and nearby galaxies. It is expected that pulsars, by virtue of their natal kicks, are also to be found in the Galactic halo. We investigate the possible population of canonical (i.e.
Aris Karastergiou +6 more
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Magnetic fields and UHECR propagation [PDF]
EPJ Web of Conferences, 2023 I review the main observational tools used to detect and measure magnetic fields in the interstellar medium of our Galaxy (considering both the Galactic disk and the Galactic halo), in the interstellar medium of external galaxies, and in the ...
Ferrière Katia
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