Search Publications
Propagation and domains of the invariant ion-acoustic solitons in the plasmas
Saberian, E.
Observational pieces of evidence of space probes Voyagers and IBEX to study the Sun's heliosphere, the outer Solar system, and interstellar space beyond the Sun's heliosphere indicate that perturbations in some regions may occur in situations out of the pure thermal equilibrium, e.g., in the outer heliosphere regions, the inner heliosheath regions…
S-index periodicity detection based on multiple random spectral observations
Shen, Yu-Fu
The solar magnetic activity cycle has a profound impact on our lives, yet its underlying causes remain elusive. While similar cycles have been observed in other stars, these results are scarce due to the significant challenge posed by the length of time required for observation. Continuous observation over an extended period is a luxury, making it…
Physical characterization of late-type contact binary systems observed by LAMOST: a comprehensive statistical analysis
Abdel Rahman, H. I.; Darwish, Mohamed
This paper presents a catalog of approximately 1800 Eclipsing W UMa systems (EWs) using parameters from LAMOST, VSX, ZTF and Gaia. Our detailed statistical analysis includes frequency distributions of parameters, confidence intervals, and hypothesis testing to provide deeper insights into the physical properties of this important eclipsing binary …
Exploring the evidence of Middle Amazonian aquifer sedimentary outburst residues in a Martian chaotic terrain
Kargel, Jeffrey S.; Berman, Daniel C.; Rodriguez, J. Alexis P. +7 more
The quest for past Martian life hinges on locating surface formations linked to ancient habitability. While Mars' surface is considered to have become cryogenic ~3.7 Ga, stable subsurface aquifers persisted long after this transition. Their extensive collapse triggered megafloods ~3.4 Ga, and the resulting outflow channel excavation generated vol…
The role and contribution of magnetic fields, characterized via their magnetic flux, to the statistical structuring of the solar atmosphere
Li, K. J.; Xu, J. C.; Feng, W.
The anomalous heating of the solar upper atmosphere is one of the eight key problems in modern astronomy. Moreover, the stratification of the solar atmosphere is an outstanding key-problem in solar physics. In this study, a hot butterfly-like pattern is found to run through the chromosphere to the corona lying right on top of the magnetic butterfl…
The total solar irradiance during the recent solar minimum period measured by SOHO/VIRGO
Schmutz, W.; Finsterle, W.; Montillet, J. P. +3 more
Various space missions have measured the total solar irradiance (TSI) since 1978. Among them the experiments Precision Monitoring of Solar Variability (PREMOS) on the PICARD satellite (2010-2014) and the Variability of Irradiance and Gravity Oscillations (VIRGO) on the mission Solar and Heliospheric Observatory, which started in 1996 and is still …
Thermal structure of the Venusian atmosphere from the sub-cloud region to the mesosphere as observed by radio occultation
Tellmann, Silvia; Pätzold, Martin; Imamura, Takeshi +9 more
We present distributions of the zonal-mean temperature and static stability in the Venusian atmosphere obtained from Venus Express and Akatsuki radio occultation profiles penetrating down to an altitude of 40 km. At latitudes equatorward of 75°, static stability derived from the observed temperature profiles is consistent with previous in-situ mea…
The origin and fate of volatile elements on Earth revisited in light of noble gas data obtained from comet 67P/Churyumov-Gerasimenko
Bekaert, David V.; Broadley, Michael W.; Marty, Bernard
The origin of terrestrial volatiles remains one of the most puzzling questions in planetary sciences. The timing and composition of chondritic and cometary deliveries to Earth has remained enigmatic due to the paucity of reliable measurements of cometary material. This work uses recently measured volatile elemental ratios and noble gas isotope dat…
The Kasei Valles, Mars: a unified record of episodic channel flows and ancient ocean levels
Duran, Sergio; Coulthard, Tom J.
There is widespread evidence across Mars of past flows in major channel systems as well as more than one palaeo ocean level. However, evidence for the timing of channel flows and ocean levels is based on geographically diverse sources with a limited number of dates, making reconstructions of palaeo flows and ocean levels patchy. Here, based on hig…
Cellular processes involved in lung cancer cells exposed to direct current electric field
Li, Huijuan; Liu, Shibin; Yang, Xue +4 more
With the rapid breakthrough of electrochemical treatment of tumors, electric field (EF)-sensitive genes, previously rarely exploited, have become an emerging field recently. Here, we reported our work for the identification of EF-sensitive genes in lung cancer cells. The gene expression profile (GSE33845), in which the human lung cancer CL1-0 cell…