Results 11 to 20 of about 67,610 (340)
Magnetic Inhibition of Convection and the Fundamental Properties of Low-Mass Stars. II. Fully Convective Main Sequence Stars [PDF]
, 2014 We examine the hypothesis that magnetic fields are inflating the radii of fully convective main sequence stars in detached eclipsing binaries (DEBs). The magnetic Dartmouth stellar evolution code is used to analyze two systems in particular: Kepler-16 ...
Chaboyer, Brian, Feiden, Gregory A.
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Constraints on Magnetic Braking from the G8 Dwarf Stars 61 UMa and τ Cet
The Astrophysical Journal Letters, 2023 During the first half of their main-sequence lifetimes, stars rapidly lose angular momentum to their magnetized winds, a process known as magnetic braking.
Travis S. Metcalfe +13 more
doaj +1 more source
Core-envelope Decoupling Drives Radial Shear Dynamos in Cool Stars
The Astrophysical Journal Letters, 2023 Differential rotation is thought to be responsible for the dynamo process in stars like our Sun, driving magnetic activity and starspots. We report that starspot measurements in the Praesepe open cluster are strongly enhanced only for stars that depart ...
Lyra Cao +2 more
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Search for magnetic fields in particle-accelerating colliding-wind binaries [PDF]
, 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
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The Astrophysical Journal, 2023 The magnetic activity of a star—which modulates the stellar wind outflow—shapes the immediate environments of orbiting (exo)planets and induces atmospheric loss, thereby impacting their habitability.
Sakshi Gupta +2 more
doaj +1 more source
First Magnetic Field Detection on a Class I Protostar [PDF]
, 2009 Strong stellar magnetic fields are believed to truncate the inner accretion disks around young stars, redirecting the accreting material to the high latitude regions of the stellar surface.
Covey, Kevin R. +3 more
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Ultraviolet spectropolarimetry: investigating stellar magnetic field diagnostics
Astrophysics 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
Doppler Imaging of stellar magnetic fields [PDF]
Astronomy & Astrophysics, 2002 We present an investigation of the magnetic field geometries and inhomogeneous distribution of chemical elements in the atmospheres of peculiar A and B stars. Our study combines high-quality spectroscopic and spectropolarimetric stellar observations with the development and application of novel techniques for theoretical interpretation of the shapes ...
N. Piskunov, O. Kochukhov
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Recent Measurements of Stellar Magnetic Fields [PDF]
Symposium - International Astronomical Union, 1991 High resolution, high S/N spectra have been successfully modeled to yield information on the magnetic properties of cool stars for some 15 years now. These analyses yield estimates of the intensity weighted surface filling factor of active regions, f, and the mean unsigned field strength in these regions), B.
openaire +1 more source
Resonant Spin-Flavor Conversion of Supernova Neutrinos and Deformation of the Electron Antineutrino Spectrum [PDF]
, 1996 The neutrino spin-flavor conversion of \bar\nu_e and \nu_\mu which is induced by the interaction of the Majorana neutrino magnetic moment and magnetic fields in the collapse-driven supernova is investigated in detail.
A. Burrows +51 more
core +2 more sources