منابع مشابه
Cluster and Double Star observations of dipolarization
We studied two types of dipolarization events with different IMF conditions when Cluster and Double Star (TC1) were located in the same local time sector: 7 August 2004, 18:00–24:00 UT, during a disturbed southward/northward IMF interval, and 14 August 2004, 21:00–24:00 UT, when the IMF was stably northward. Cluster observed dipolarization as well as fast flows during both intervals, but this w...
متن کاملDouble-Star Detection Using Convolutional Neural Network in Atmospheric Turbulence
In this paper, we investigate the usage of machine learning in the detection and recognition of double stars. To do this, numerous images including one star and double stars are simulated. Then, 100 terms of Zernike expansion with random coefficients are considered as aberrations to impose on the aforementioned images. Also, a telescope with a specific aperture is simulated. In this work, two k...
متن کاملDouble Neutron Star Formation
We present results of a population synthesis study aimed at examining the role of spin-kick alignment in producing a correlation between the spin period of the first-born neutron star and the orbital eccentricity of observed double neutron star binaries in the Galactic disk. We find spin-kick alignment to be compatible with the observed correlation, but not to alleviate the requirements for low...
متن کاملPulsar Timing Observations and Tests of General Relativity in Double-neutron-star Binaries
We describe the techniques used in pulsar timing observations, and show how these observations may be applied to tests of strong-field general relativity for doubleneutron-star binary systems. We describe the tests of GR resulting from the PSRs B1913+16 and B1534+12 systems. For the latter pulsar, 5 ”Post-Keplerian” timing parameters are measurable, including the orbital period derivative and t...
متن کاملCoordinated Cluster/Double Star and ground-based observations of dayside reconnection signatures on 11 February 2004
A number of flux transfer events (FTEs) were observed between 09:00 and 12:00 UT on 11 February 2004, during southward and dawnward IMF, while the Cluster spacecraft array moved outbound through the northern, highaltitude cusp and dayside high-latitude boundary layer, and the Double Star TC-1 spacecraft was crossing the dayside low-latitude magnetopause into the magnetosheath south of the eclip...
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ژورنال
عنوان ژورنال: Astronomische Nachrichten
سال: 1890
ISSN: 0004-6337,1521-3994
DOI: 10.1002/asna.18901230102