Results 31 to 40 of about 7,393,464 (385)
Rotational Activity around an Obstacle in 2D Cardiac Tissue in Presence of Cellular Heterogeneity
Mathematics, 2021 Waves of electrical excitation rotating around an obstacle is one of the important mechanisms of dangerous cardiac arrhythmias occurring in the heart damaged by a post-infarction scar.
Pavel Konovalov +4 more
doaj +1 more source
Rotation Period Evolution in Low-mass Binary Stars: The Impact of Tidal Torques and Magnetic Braking [PDF]
Astrophysical Journal, 2019 We examine how tides, stellar evolution, and magnetic braking shape the rotation period (Prot) evolution of low-mass stellar binaries up to orbital periods (Porb) of 100 days across a wide range of tidal dissipation parameters using two common ...
David P. Fleming +3 more
semanticscholar +1 more source
Jupiter and Saturn rotation periods [PDF]
Planetary and Space Science, 2009 Anderson & Schubert (2007, Science,317,1384) proposed that Saturn's rotation period can be ascertained by minimizing the dynamic heights of the 100 mbar isosurface with respect to the geoid; they derived a rotation period of 10h 32m 35s. We investigate the same approach for Jupiter to see if the Jovian rotation period is predicted by minimizing the
Helled, Ravit +2 more
openaire +2 more sources
Revisiting the connection between magnetic activity, rotation period, and convective turnover time for main-sequence stars [PDF]
Astronomy & Astrophysics, 2018 The connection between stellar rotation, stellar activity, and convective turnover time is revisited with a focus on the sole contribution of magnetic activity to the Ca II H&K emission, the so-called excess flux, and its dimensionless indicator R+HK in ...
M. Mittag +5 more
semanticscholar +1 more source
Journal of Forest Science, 2022 The exact determination of the rotation period is still a current and important essential issue of forestry. It attracts the attention of forest economists, managers and owners worldwide, not only of forest economists but also of forest managers.
Michaela Korená Hillayová +3 more
doaj +1 more source
GJ 1214: Rotation period, starspots, and uncertainty on the optical slope of the transmission spectrum [PDF]
Astronomy & Astrophysics, 2018 Aims. Brightness inhomogeneities in the stellar photosphere (dark spots or bright regions) affect the measurements of the planetary transmission spectrum.
M. Mallonn +8 more
semanticscholar +1 more source
Mercury's Rotation Period: Photographic Confirmation [PDF]
Science, 1968 Photographic measures of surface features on Mercury have led to a rotation period of 58.663 ± 0.021 days, which is in good agreement with the 58.646-day period required by a predicted 2:3 resonance between the axial and orbital periods. The incorrect interpretation of earlier visual and photographic observations which supported an 88-day rotation ...
B A, Smith, E J, Reese
openaire +2 more sources
Temporal Variation of the Rotation in the Solar Transition Region
The Astrophysical Journal Letters, 2023 The temporal variations of solar rotation in the photosphere, chromosphere, and corona have been widely investigated, whereas the rotation of the solar transition region is rarely studied. Here, we perform a primary study about the long-term variation of
Xiaojuan Zhang +4 more
doaj +1 more source
Odessa Astronomical Publications, 2014 The light curves of EGS Ajisai with temporal resolution of 20 ms referred to the time scale UTC (GPS) with an error of at most 0.1 ms were obtained. The observed flashes are produced when the mirrors which cover the spinning satellite’s surface reflect ...
N. Burlak +5 more
doaj +1 more source
The β Pictoris association low-mass members: Membership assessment, rotation period distribution, and dependence on multiplicity [PDF]
, 2017 Low-mass members of young stellar associations exhibit a wide spread of rotation periods. Such a spread originates from distributions of masses and initial rotation periods. However, multiplicity can also play a significant role.
S. Messina +8 more
semanticscholar +1 more source