Találati lista | Tudóstér

001-es BibID:	BIBFORM114343
035-os BibID:	(WoS)000859291200001 (Scopus)85139380791
Első szerző:	Zsámberger Noémi Kinga (csillagász)
Cím:	Magnetohydrodynamic Waves in an Asymmetric Magnetic Slab with Different External Flows / Zsámberger Noémi Kinga; Carmen M. Sánchez Montoya; Erdélyi Róbert
Dátum:	2022
ISSN:	0004-637X
Megjegyzések:	Building on recent studies of the Kelvin-Helmholtz instability (KHI) in the solar atmosphere, we investigate a simple analytical model that can further our understanding of how the presence of bulk flows influences the propagation of magnetohydrodynamic (MHD) waves. Our model builds on a series of recent works on stationary MHD waveguides and looks at a magnetic slab with a density asymmetry, as well as asymmetric background steady flows present in its environment. We obtained approximate solutions to the dispersion relation for the important and applicable limiting cases of a thin or a wide slab, as well as low- and high-? plasmas. We also explored the relation between the angular frequency of trapped MHD waves, the limit for the onset of the KHI, and small parameters describing the flow and density asymmetries. Our analytical investigation is complemented by a numerical analysis for various bulk flow speeds and slab widths. Both these avenues of study reveal that the flow field asymmetry has an important effect on both the cutoff frequencies and the stability of trapped MHD waves in the slab configuration.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Nap napfizika magnetohidrodinamika MHD naplégkör fényes mágneses pontok (MBP) hullámok
Megjelenés:	Astrophysical Journal. - 937 : 1 (2022), p. 23-34. -
További szerzők:	Sánchez Montoya, Carmen M. Erdélyi Róbert
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon: