Results 41 to 50 of about 355,313 (165)
Magnetic fields on young, solar-type stars [PDF]
, 2013 This thesis describes an investigation aimed at using spectropolarimetric observations of the magnetic fields of young solar-type stars to improve the understanding of the early development of solar and stellar dynamos and activity cycles.
Waite, Ian
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The Starspots and Magnetic Fields of Young Late-F Stars [PDF]
Observations of the magnetic activity of young solar-type stars offer insights into the early history of our Sun, its dynamo activity and planetary impacts.
Hughes, James Edward
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Magnetic fields around evolved stars [Elektronisk resurs]
, 2018 There has long been evidence of magnetic fields in the extended envelopes of asymptotic giant branch (AGB) and red supergiant (RSG) stars. These stars are important contributors to the enrichment of the interstellar medium by dust and heavy elements ...
Vlemmings, Wouter,
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The Role of Magnetic Fields in AGN Activity and Feedback
, 2018 Active galactic nuclei (AGNs), the luminous, compact core regions of galaxies where accretion occurs onto supermassive black holes, can dramatically influence their entire host galaxy evolution by a process referred to as AGN feedback. Energy feedback to
Keppens, R. +4 more
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Cio-cio-san no Yūutsu: memoirs of magnetogenesis and Turbulent Dynamo Theory
, 2013 The origins of cosmic magnetic fields are not as yet well understood. In this dissertation we investigate, via direct numerical simulation, the temporal evolution and behaviour of magnetic fields that are generated from absolute zero initial conditions ...
Adams, Patrick
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Demo 19-09 Magnetic Fields Around Currents
, 2001 The magnetic field around various geometries of conductors can be observed using iron filings. While the current is running through the wire, iron filings are sprinkled onto a plastic sheet through which the wire runs, and the plate is gently tapped ...
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Magnetic reconnection solutions in the presence of multiple nulls
, 1999 It is known that exact analytic solutions can be constructed for incompressible magnetic reconnection in three space dimensions. In the case of an isolated X-point null, there are two types of reconnection solutions, namely, “spine” and “fan” models ...
Heerikhuisen, J. +4 more
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Development and application of a global magnetic field evolution model for the solar corona
, 2009 Magnetic fields are fundamental to the structure and dynamics of the Sun’s corona. Observations show them to be locally complex, with highly sheared and twisted fields visible in solar filaments/prominences.
Yeates, Anthony Robinson
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The appearance, motion, and disappearance of three-dimensional magnetic null points
, 2015 N.A.M. acknowledges support from NASA grants NNX11AB61G, NNX12AB25G, and NNX15AF43G; NASA contract NNM07AB07C; and NSF SHINE grants AGS-1156076 and AGS-1358342 to SAO. C.E.P.
Parnell, Clare Elizabeth +5 more
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Environmental Health Perspectives, 1993 This letter is a response to an article by Savitz and Kaune, EHP 101:76-80. W-L wire code was applied to data from a 1988 Denver study, and an association was reported between high W-L wire code and childhood cancer. This author discusses several studies and provides explanations which weakens the argument that classification error resulted in an ...
openaire +1 more source