Search Publications
Missions
Journals
Publication Years
Search and identification of high-velocity stars by dynamical ejection and supernovae from multiple stars
Hambaryan, V.; Neuhaeuser, R.
The project, funded by Science Committee of RA (ARPI program), intended to search, detection, kinematic study and identification of the birth places of the high-velocity and isolated neutron stars that encountered in the past with a stellar groups (multiple stars, stellar clusters, associations, etc.) closer than 10 pc, i.e. to test the concept: a…
The Link Between Individual Velocities in the Incident Plasma Flow and Ion Populations Upstream of Collisionless Shocks
Wilkinson, W. P.; Humphreys, M.; Kilgallon, S.
The interaction of the solar wind with Earth's bow shock gives rise to several distinct ion populations upstream and downstream of the shock. Using numerical computation of trajectories in the de Hoffmann-Teller frame of reference and previous analytical results, we investigate whether membership of these populations is determined by a particle's …
Magnetopause Dynamics at Saturn as Observed by Cassini
Allen, Robert C.; Mo, Wenli; Paranicas, Chris +2 more
The occurrence and impacts of magnetopause processes at outer planets, particularly magnetic reconnection and the Kelvin-Helmholtz instability (KHI), remains unresolved. From a list of 2,114 magnetopause crossings at Saturn spanning the full duration of the Cassini mission, magnetic field and low-energy plasma properties are analyzed for each cros…
A photoelectric study of the eclipsing binary EG Serpentis
Thurman, Glenn M.
A ubvy photoelectric study of the early A-type, detached eclipsing binary EG Serpentis (EG Ser) has been undertaken at Mount Laguna Observatory. Simultaneous observation on two telescopes has been employed for the first time at the observatory. Approximately 2000 standardized differential magnitudes are presented along with standardized colours an…
On Tidal Distances between Components of Wide Binary Stars in the Pleiades
Danilov, V. M.
The paper estimates the tidal distances
The odd bunch: chrono-chemo-dynamics of sixteen unusual stars from Kepler
Monty, Stephanie; Stello, Dennis; Casagrande, Luca +4 more
In this study we combine asteroseismic, spectroscopic, and kinematic information to perform a detailed analysis of a sample of 16 stars from the Kepler field. Our selection focuses on stars that appear to contradict Galactic chemical evolution models: young and α-rich, old and metal-rich, as well as other targets with unclear classification in pas…
Data stream mining for predicting the thermal power consumption of the Mars Express spacecraft
Džeroski, Sašo; Kocev, Dragi; Stevanoski, Bozhidar +2 more
The Mars Express (MEX) spacecraft, operated by the European Space Agency (ESA), has been orbiting Mars for the past 18 years. During this period, it has provided unprecedented scientific data about the red planet, but it has also aged, and its batteries have degraded. Thus, MEX needs careful and accurate power modeling to continue its significant …
New reduction of old glass astronomical plates of Pallas and Vesta in 1956-1994 based on Gaia DR3 catalogue
Ehgamberdiev, Sh. A.; Dong, S.; Yu, Y. +9 more
Through a key project for intergovernmental international cooperation between Uzbekistan and China, a group of old glass astronomical plates of Pallas and Vesta taken by the TAS033 telescope at Tashkent observation site of Ulugh Beg Astronomical Institute in 1956-1994 have been digitized using the digitizer with sub-micrometer measuring precision …
The impact of dimensionality reduction of ion counts distributions on preserving moments, with applications to data compression
Thompson, B.; da Silva, D.; Bard, C. +3 more
The field of space physics has a long history of utilizing dimensionality reduction methods to distill data, including but not limited to spherical harmonics, the Fourier Transform, and the wavelet transform. Here, we present a technique for performing dimensionality reduction on ion counts distributions from the MMS/FPI instrument using a data-ad…
Study of five eccentric eclipsing binary systems
Zejda, M.; Auer, R. F.; Kolář, J.
In this paper we present the comprehensive analysis of five binary systems: GX Lac, TT Lyr, OGLE LMC-ECL-7641, OGLE LMC-ECL-17660, and OGLE LMC-ECL-17411. With new photometric observations combined with other available data mostly from TESS, MACHO, and OGLE, we calculated new minima timings and study the O - C diagrams. We fitted the light curves …