Results 41 to 50 of about 84,923 (296)

Stellar evolution with rotation and magnetic fields:I. The relative importance of rotational and magnetic effects

open access: yes, 2003
We compare the current effects of rotation in stellar evolution to those of the magnetic field created by the Tayler instability. In stellar regions, where magnetic field can be generated by the dynamo due to differential rotation (Spruit 2002), we find ...
A. Maeder   +15 more
core   +3 more sources

General relativistic simulations of pasive-magneto-rotational core collapse with microphysics [PDF]

open access: yes, 2007
This paper presents results from axisymmetric simulations of magneto-rotational stellar core collapse to neutron stars in general relativity using the passive field approximation for the magnetic field. These simulations are performed using a new general
Akiyama   +95 more
core   +3 more sources

Coronal Structure of Low-Mass Stars

open access: yes, 2012
We investigate the change in stellar magnetic topology across the fully-convective boundary and its effects on coronal properties. We consider both the magnitude of the open flux that influences angular momentum loss in the stellar wind and X-ray ...
Aline Vidotto   +67 more
core   +1 more source

Magnetic Field - Stellar Winds Interaction [PDF]

open access: yesProceedings of the International Astronomical Union, 2014
AbstractAs per the recent study by the MiMeS collaboration, only about 10% of massive stars possess organized global magnetic fields, typically dipolar in nature. The competition between such magnetic fields and highly non-linear radiative forces that drive the stellar winds leads to a highly complex interaction.
openaire   +1 more source

Star-planet magnetic interaction and activity in late-type stars with close-in planets

open access: yes, 2012
Late-type stars interact with their close-in planets through their coronal magnetic fields. We introduce a theory for the interaction between the stellar and planetary fields focussing on the processes that release magnetic energy in the stellar coronae.
A. F. Lanza   +68 more
core   +1 more source

RIPK4 function interferes with melanoma cell adhesion and metastasis

open access: yesMolecular Oncology, EarlyView.
RIPK4 promotes melanoma growth and spread. RIPK4 levels increase as skin lesions progress to melanoma. CRISPR/Cas9‐mediated deletion of RIPK4 causes melanoma cells to form less compact spheroids, reduces their migratory and invasive abilities and limits tumour growth and dissemination in mouse models.
Norbert Wronski   +9 more
wiley   +1 more source

The Role of Meridional Flow in the Generation of Solar/Stellar Magnetic Fields and Cycles

open access: yesThe Astrophysical Journal
Meridional flow is crucial in generating the solar poloidal magnetic field by facilitating poleward transport of the field from decayed bipolar magnetic regions (BMRs).
Vindya Vashishth, Bidya Binay Karak
doaj   +1 more source

Targeting TNBC: core–shell polycationic polyurea dendrimers with inherent anticancer activity

open access: yesFEBS Open Bio, EarlyView.
Core–shell polycationic PURE dendrimers were tested in TNBC‐derived tumor models. Both formulations selectively targeted TNBC and effectively reduced tumor volume. PUREG4‐OEI48 suppressed tumor growth without detectable toxicity, whereas PUREG4‐OCEI24, despite showing efficacy, induced hepatic toxicity.
Adriana Cruz   +9 more
wiley   +1 more source

Photometric magnetic-activity metrics tested with the Sun: application to Kepler M dwarfs

open access: yesJournal of Space Weather and Space Climate, 2014
The Kepler mission has been providing high-quality photometric data leading to many breakthroughs in the exoplanet search and in stellar physics. Stellar magnetic activity results from the interaction between rotation, convection, and magnetic field ...
Mathur Savita   +3 more
doaj   +1 more source

Stable magnetic fields in stellar interiors [PDF]

open access: yesAstronomy & Astrophysics, 2006
19 pages, 24 figures, submitted to A& ...
Braitwaite, J., Nordlund, Å.
openaire   +3 more sources

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