Results 11 to 20 of about 232,366 (268)
The minimum rotation period of millisecond pulsars [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2021 ABSTRACT A simple and natural explanation for the minimum period of millisecond pulsars follows from a correlation between the accretion rate and the frozen surface dipole magnetic field resulting from ohmic diffusion through the neutron star crust in initial stages of accretion in low-mass X-ray binaries.
Ünal Ertan, M Ali Alpar
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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
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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
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Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2011 At the beginning of this century, particularly after 2003, decline of Picea abies occurred at Forest District Jablunkov in the Silesian Beskids. This decline is of the complex character disease caused by the synergetic effects of abiotic, biotic and ...
Petr Čermák, Otakar Holuša
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Forestist, 2007 This study \vas conducted to exam ine the changes in physical properties of soils prepared with different m ethods in Kerpe (Turkey), in 1978. The site preparation m ethods were: 1) strip soil preparation (0-60 cm) vvitlı rippers m ounted to D 85-A 12 ...
Ahmet Hızal +2 more
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The Rotation Period of Mars [PDF]
Nature, 1873 ONE or two points in Prof. Bakhuysen's investigation of the rotation period of Mars require correction:—
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Limiting rotational period of neutron stars [PDF]
Physical Review D, 1992 Pulsars have been identified with the theoretical objects called neutron stars. The identification is convincing—but not proved. The short rotational periods of millisecond pulsars inform us that the average density (and, therefore, the central density) must be very high—higher than the density of nuclei (5.8).
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Modeling the Rising Tails of Galaxy Rotation Curves
Galaxies, 2019 It is well known, but under-appreciated in astrophysical applications, that it is possible for gravity to take on a life of its own in the form of Weyl-curvature-only metrics (note that we are referring to the Weyl-only solutions of ordinary General ...
Fan Zhang
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The Astrophysical Journal, 2023 Stellar rotation is crucial for studying stellar evolution, since it provides information about age, angular momentum transfer, and magnetic fields of stars.
Alexandre Araújo, Adriana Valio
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Silva Fennica, 2023 This study’s aim was to calculate the weathering rates of Ca and Mg for five boreal forest soils in southern Finland on granitic and gabbro containing bedrock. The effect of mineralogy on the total concentrations of Ca and Mg in soil and weathering rates
Antti-Jussi Lindroos, Hannu Ilvesniemi
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