Results 21 to 30 of about 84,923 (296)

EVN observations of 6.7 GHz methanol maser polarization in massive star-forming regions III. The flux-limited sample [PDF]

open access: yes, 2015
Theoretical simulations and observations at different angular resolutions have shown that magnetic fields have a central role in massive star formation.
Bartkiewicz, A.   +5 more
core   +3 more sources

Seismological insights into solar and stellar magnetic activity cycles

open access: yesEPJ Web of Conferences, 2017
The Sun’s magnetic activity cycle varies primarily on a time scale of approximately 11yrs from minimum to maximum and back again. It is well-known that the properties of the Sun’s acoustic oscillations are affected by the near-surface internal magnetic ...
Broomhall Anne-Marie
doaj   +1 more source

Magnetic fields in massive spirals: The role of feedback and initial conditions [PDF]

open access: yes, 2018
Magnetic fields play a very important role in the evolution of galaxies through their direct impact on star formation and stellar feedback-induced turbulence.
Ntormousi, Evangelia
core   +2 more sources

Stellar magnetic activity and exoplanets

open access: yesEPJ Web of Conferences, 2017
It has been proposed that magnetic activity could be enhanced due to interactions between close-in massive planets and their host stars. In this article, I present a brief overview of the connection between stellar magnetic activity and exoplanets ...
Vidotto A.A.
doaj   +1 more source

Magnetic Braking Formulation for Sun-Like Stars: Dependence on Dipole Field Strength and Rotation Rate [PDF]

open access: yes, 2012
We use two-dimensional axisymmetric magnetohydrodynamic simulations to compute steady-state solutions for solar-like stellar winds from rotating stars with dipolar magnetic fields.
Barnes   +20 more
core   +4 more sources

Rotation Measure Variations and Reversals of Repeating FRBs in Massive Binary Systems

open access: yesThe Astrophysical Journal, 2023
Recent observations discovered that some repeating fast radio bursts (FRBs) show complicated variations and reversals of Faraday rotation measures (RMs), indicating that the sources of these FRBs are embedded in a dynamically magnetized environment.
Z. Y. Zhao   +3 more
doaj   +1 more source

Ultraviolet spectropolarimetry: investigating stellar magnetic field diagnostics

open access: yesAstrophysics and Space Science, 2022
Accepted for publication in Astrophysics and Space Science; updated to accepted version.
Folsom, C. P.   +11 more
openaire   +6 more sources

Search for magnetic fields in particle-accelerating colliding-wind binaries [PDF]

open access: yes, 2014
Some colliding-wind massive binaries, called particle-accelerating colliding-wind binaries (PACWB), exhibit synchrotron radio emission, which is assumed to be generated by a stellar magnetic field.
De Becker, M.   +4 more
core   +3 more sources

Modelling stellar coronal magnetic fields [PDF]

open access: yesProceedings of the International Astronomical Union, 2010
AbstractOur understanding of the structure and dynamics of stellar coronae has changed dramatically with the availability of surface maps of both star spots and also magnetic field vectors. Magnetic field extrapolations from these surface maps reveal surprising coronal structures for stars whose masses and hence internal structures and dynamo modes may
Jardine, Moira   +3 more
openaire   +2 more sources

The contribution of starspots to coronal structure [PDF]

open access: yes, 2010
Significant progress has been made recently in our understanding of the structure of stellar magnetic fields, thanks to advances in detection methods such as Zeeman-Doppler Imaging.
Arzoumanian, Doris   +4 more
core   +2 more sources

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