Results 91 to 100 of about 481 (137)

Strong Gravitational Lensing and Microlensing of Supernovae. [PDF]

open access: yesSpace Sci Rev
Suyu SH   +4 more
europepmc   +1 more source

Giant chiral magnetoelectric oscillations in a van der Waals multiferroic. [PDF]

open access: yesNature
Gao FY   +15 more
europepmc   +1 more source

Newly formed dust within the circumstellar environment of SN Ia-CSM 2018evt. [PDF]

open access: yesNat Astron
Wang王 L灵   +46 more
europepmc   +1 more source

DYNAMICS OF SPIRAL GALAXIES

Frontiers of Applied Mathematics, 2007
The dynamics of spiral galaxies is a gold-mine of challenging problems for the astrophysicist and the applied mathematician. In Astrophysics, we may ask how these island-universes formed, evolved, and reached their current structure and thus address the problems of the dynamics of the interstellar medium, of star formation, of stellar dynamics, and of ...
openaire   +2 more sources

Spirals in galaxies

Proceedings of the International Astronomical Union, 2019
AbstractThe venerable problem of what causes the spiral features in disk galaxies is nearing a solution. In previous work, we have shown that transient spirals in simulations result from the superposition of a few coherent waves that have many properties of modes.
openaire   +1 more source

Opaque spiral galaxies

Nature, 1990
The photographic images of a carefully selected sample of about 16,000 galaxies have been digitized, and an extensive set of photometric parameters has been determined. These data allow a reanalysis of the effective transparency using the measured surface brightness profiles for much larger, more strictly defined samples. Several tests provide evidence
openaire   +2 more sources

Magnetism of spiral galaxies

Nature, 1988
The concept of the turbulent dynamo in interstellar gas combined with the discovery of global magnetic structures in spiral galaxies has led to a consistent picture of galactic magnetism. Large-scale magnetic fields are generated and maintained by helical turbulent motions of interstellar gas and by differential galactic rotation.
Alexander Ruzmaikin   +2 more
openaire   +1 more source

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