Results 141 to 150 of about 962,797 (273)

New Online Database of Symbiotic Variables: Catalog and Statistical Overview of Symbiotic Binaries

The Astrophysical Journal Supplement Series
We present the New Online Database of Symbiotic Variables (NODSV), a comprehensive and publicly accessible catalog of known and candidate symbiotic stars in the Milky Way and nearby galaxies.
Jaroslav Merc, Rudolf Gális, Marek Wolf
doaj   +1 more source

A Low‐Power Radioisotope XRF Spectrometer for Detection of Light Elements on Planetary Missions

X-Ray Spectrometry, Volume 55, Issue 5, Page 721-729, September/October 2026.
ABSTRACT Current X‐ray spectrometers for in situ geochemical analysis on planetary missions typically rely either on X‐ray tubes, which demand electrical power and add mass and thermal complexity, or on alpha particle X‐ray spectrometers (APXS) that use rare 244 Cm sources, and come with severe concerns on radiation safety and isotope availability.
Leandro Silveri, Artem Knyazev, Hashem Alaidaros, Maryam Manzoor Amanullah, Zach Ioannou, Tengiz Ibrayev, Danish Khan, Sara Leardini, Laura Manenti, Simi Maria Emilia Mangani, Safa Naseem, Sandhya Sharma, Sara Trevisan, Alia Zino, Francesco Arneodo   +14 more
wiley   +1 more source

Phase II of the LAMOST-Kepler/K2 Survey. II. Time Domain of Medium-resolution Spectroscopic Observations from 2018 to 2023

The Astrophysical Journal Supplement Series
The LAMOST-Kepler/K2 Medium-Resolution Spectroscopic Survey (LK-MRS) conducted time-domain (TD) medium-resolution spectroscopic observations of 20 LAMOST plates in the Kepler and K2 fields from 2018 to 2023, a phase designated as LK-MRS-I.
Mingfeng Qin, Jian-Ning Fu, Weikai Zong, Peter De Cat, Antonio Frasca, Tianqi Cang, Jiangtao Wang, Jianrong Shi, Ali Luo, Haotong Zhang, Hongliang Yan, J. Molenda-Żakowicz, R. O. Gray, Jiaxin Wang   +13 more
doaj   +1 more source

Transit timing at Torun Center for Astronomy

, 2011
The transit monitoring is one of well-known methods for discovering and observing new extrasolar planets. Among various advantages, this way of searching other worlds does not require complex and expensive equipment - it can be performed with a ...
Maciejewski, G., Bykowski, W.
core  

Burn Severity as a Driver of Multi‐Year Increases in Gross Primary Production and Solar‐Induced Fluorescence Following a Wildfire in Arctic Tundra

AGU Advances, Volume 7, Issue 6, September 2026.
Abstract While climate‐driven increases in wildfires are altering the composition and function of Arctic ecosystems, the impact of burn severity on longer‐term changes in community composition and ecosystem fluxes remains less understood, creating uncertainty in estimates of the biome's carbon storage capacity.
Jinhyuk E. Kim, Rebecca C. Scholten, Rachel Badzioch, Salvatore R. Curasi, Ian Klupar, Alexa A. Salinas, Michael L. Goulden, James T. Randerson, Edward B. Rastetter, Adrian V. Rocha   +9 more
wiley   +1 more source

Assessing SWOT's Measurement Capabilities in the Complex Paraná River

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Estimating water surface elevation (WSE) is crucial for understanding hydrological processes; however, many rivers remain insufficiently monitored due to the limitations of in situ gauge networks. The Surface Water and Ocean Topography (SWOT) mission, equipped with Synthetic Aperture Radar technology, enables global monitoring of WSE with high
E. Walker, C. López Weibel, R. Szupiany, V. Venturini, K. Oberg, J. T. Minear, C. M. García, M. Monserrat   +7 more
wiley   +1 more source

A Solar Analog Model for Decrease in Far Ultraviolet Irradiance Under a Grand Minimum

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Solar analog field stars having a range of magnetic activity can provide an estimate of solar spectral irradiance (SSI) variability relevant to understanding the Sun's influence on terrestrial climate. This approach is particularly useful for far ultraviolet (FUV) irradiance that cannot be observed from the Earth surface.
D. Lubin, C. Melis, D. Tytler
wiley   +1 more source

Quantifying Future Effects of Low‐Frequency Tropical Cyclones and Sea Level Rise Scenarios on Nonlinear Interactions in Total Water Levels

Earth's Future, Volume 14, Issue 9, September 2026.
Abstract Total water levels during tropical cyclones (TCs) are triggered by multiple synergistic drivers that nonlinearly interact in space and time, including mean sea level, astronomical tides, storm surge, and waves. It is also known that TC characteristics, sea level rise (SLR), and hydrodynamic and morphologic features influence such nonlinear ...
Md Shadman Sakib, David F. Muñoz, Thomas Wahl, Jennifer L. Irish   +3 more
wiley   +1 more source

Dam Regulation Moderates Climate‐Induced Rice Yield Loss in the Mekong‐Tonle Sap Lake System

Earth's Future, Volume 14, Issue 9, September 2026.
Abstract Rice, a principal global staple crop, is increasingly threatened by flooding under climate change, placing rice‐dependent economies at risk. Yet the capacity of human activities to mitigate inundation impacts on rice remains insufficiently quantified.
K. Zhang, K. Morovati, A. Urfels, F. Tian   +3 more
wiley   +1 more source

Education and Understanding of Astronomy through Total Solar Eclipses

, 2003
A total solar eclipse has a great impact on ppeople, and hence there are very old historic records in China, Mesopotamia, etc. The impact still does not change in present times, and inspires wonder in us. The spectacular and magnificent event at a total
Takahashi, Noritsugu, Iizuka, Yuto, Hiei, Eijiro   +2 more
core