Time domain astronomy is a research area focused on observing and characterizing astronomical phenomena as a function of time, emphasizing variability, transients, and dynamic processes across the electromagnetic spectrum and, increasingly, in multi-messenger channels (gravitational waves, neutrinos). It leverages high-cadence surveys, wide-field imaging, and rapid follow-up to study events such as supernovae, tidal disruption events, variable stars, active galactic nuclei, kilonovae, and fast radio bursts. Methodologically, it depends on time-series analysis, real-time alert systems, and automated classification pipelines, integrating large-scale data processing and statistical inference to constrain physical models of transient astrophysical sources and their environments.
An international team of astronomers using the Einstein Probe reports the discovery of a new peculiar fast-evolving X-transient. The newfound transient exhibits an unprecedented long-lasting X-ray emission. The finding was ...
Using various ground-based and space telescopes, an international team of astronomers has observed a highly variable young star known as DR Tauri. Results of the observational campaign, published May 12 on the arXiv preprint ...
Observations from NASA's James Webb Space Telescope have provided a surprising twist in the narrative surrounding what is believed to be the first star observed in the act of swallowing a planet. The new findings, published ...
Astronomy
Apr 10, 2025
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189
Using NASA's Nuclear Spectroscopic Telescope Array (NuSTAR), Indian astronomers have performed X-ray observations of an X-ray binary designated 4U 1907+09. Results of the observational campaign, published April 3 on the arXiv ...
In the past three years, astronomers have discovered a mysterious new type of radio source. We call these long-period transients.
Astronomy
Mar 12, 2025
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149
Scientists from UNSW Sydney have located a potential new exoplanet—a planet that orbits a star outside of our solar system—using a technique known as "transit timing variation."
Planetary Sciences
Mar 5, 2025
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40
Using the ROentgen SATellite (ROSAT), astronomers have discovered a new cataclysmic variable system of the polar subtype. The new polar, which received the designation ZTF J0112+5827, has an orbital period of approximately ...
By analyzing multiwavelength data from various space telescopes and astronomical surveys, Chinese astronomers have explored the long-term variability of a blazar known as PKS 0727-11. Results of the new study, published in ...
Russian astronomers have conducted photometric observations of a unique extremely metal-poor luminous blue variable star known as DDO68-V1. Results of the observational campaign, published Jan. 28 on the arXiv pre-print server, ...
In a study published in Nature Communications, researchers from the Leibniz-Institut for Astrophysics Potsdam (AIP) and the HUN-REN Research Centre for Astronomy and Earth Sciences (HUN-REN CSFK) have reconstructed the temporal ...
Astronomy
Dec 4, 2024
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150
