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.
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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Using the DAocheng Radio Telescope (DART), Chinese astronomers have detected a long-period transient event. The newfound transient, which received designation DART J1832-0911, has a period of approximately 44 minutes and ...
Researchers from the Curtin node of the International Center for Radio Astronomy Research (ICRAR) have made a record-breaking astrophysical discovery while simultaneously uncovering a possible explanation for the rare and ...
Astronomy
Nov 26, 2024
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Astronomers have performed a comprehensive multiwavelength study of an extremely variable blazar known as AO 0235+164. Results of the new study, published Nov. 3 on the preprint server arXiv, shed more light on the long-term ...
When a star moves around a supermassive black hole (SMBH) in a close elliptical orbit, it gets partially tidally disrupted every time it reaches the pericenter, emitting a series of luminous flares, known as a partial tidal ...
Astronomy
Nov 11, 2024
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In 1181, a new star shone near the Cassiopeia constellation for six months before disappearing. This event, recorded as a "guest star" by Chinese and Japanese observers almost a millennium ago, has puzzled astronomers for ...
Astronomy
Oct 24, 2024
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Russian astronomer Valerij Kozhevnikov has performed photometric observations of a candidate cataclysmic variable known as LAMOST J035913.61+405035.0. He detected 14 eclipses of this system. The finding was reported in a ...
Using the Gran Telescopio Canarias (GTC), astronomers from Italy and Spain have carried out high-temporal-resolution optical spectroscopic observations of a transitional millisecond pulsar designated PSR J1023+0038. Results ...
