Using classical model atmospheres and an LTE analysis, Mg isotope ratios 24Mg:25Mg:26Mg are measured in 32 Hyades dwarfs covering effective temperatures 4000K
Magnetic Activity Evolution of Solar-like Stars. I. S <SUB>ph</SUB>-Age Relation Derived from Kepler Observations
The ages of solar-like stars have been at the center of many studies such as exoplanet characterization or Galactic-archeology. While ages are usually computed...
Magnetic Activity Evolution of Solar-like Stars. II. S<SUB>ph</SUB>–Ro Evolution of Kepler Main-sequence Targets
There is now a large sample of stars observed by the Kepler satellite with measured rotation periods and photometric activity index S ph. We use this data, in...
Magnetic and Rotational Evolution of ρ CrB from Asteroseismology with TESS
During the first half of main-sequence lifetimes, the evolution of rotation and magnetic activity in solar-type stars appears to be strongly coupled. Recent...
Magnetic Field Components Analysis of the SCUPOL 850 μm Polarization Data Catalog
We present an extensive analysis of the 850 μm polarization maps of the SCUBA Polarimeter Legacy (SCUPOL) Catalogue produced by Matthews et al., focusing...
Magnetic Field Information in the Near-ultraviolet Fe II Lines of the CLASP2 Space Experiment
We investigate theoretically the circular polarization signals induced by the Zeeman effect in the Fe II lines of the 279.3-280.7 nm spectral range of the...
Magnetic Field Structures and Turbulent Components in the Star-forming Molecular Clouds OMC-2 and OMC-3
The SCUBA polarized 850 μm thermal emission data of the OMC-2 region in Orion A are added to and homogeneously reduced with data already available in the OMC-3...
Magnetic Fields beneath Active Region Coronal Loops
We examine the hypothesis that multipolar magnetic fields advected by photospheric granules can contribute to heating the active chromosphere and corona. On...
Magnetic Fields in a Sample of Planet-hosting M Dwarf Stars from Kepler, K2, and TESS Observed by APOGEE
Stellar magnetic fields have a major impact on space weather around exoplanets orbiting low-mass stars. From an analysis of Zeeman-broadened Fe I lines measured...