翻訳と辞書
Words near each other
・ Time dependent vector field
・ Time deposit
・ Time derivative
・ Time Detectives
・ Time deviation
・ Time dilation
・ Time dilation of moving particles
・ Time discipline
・ Time displacement
・ Time diversity
・ Time division multiple access
・ Time Does Not Heal
・ Time Doesn't Heal
・ Time Doesn't Notice
・ Time domain
Time domain astronomy
・ Time domain electromagnetics
・ Time domain vernier method
・ Time Don't Run Out on Me
・ Time End
・ Time Enough
・ Time Enough at Last
・ Time Enough for Love
・ Time evolution
・ Time evolution of integrals
・ Time Expired
・ Time Expired (1992 film)
・ Time Expired (2011 film)
・ Time exposure
・ Time Exposure (Little River Band album)


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Time domain astronomy : ウィキペディア英語版
Time domain astronomy

Time domain astronomy is the study of astronomical object change with time. This may be due to movement, or changes in the object itself. Included are supernovae, Flare star, blazars and active galactic nuclei. visible light time domain studies include Hat-South, LSST PanSTARRS, PSST, SkyMapper, WASP3 and Catalina Real-time Transient Survey. in Radio Astronomy the LOFAR is looking for radio transients. Radio time domain studies have long included pulsars and scintillation. Cherenkov Telescope Array, eROSITA, Fermi, HAWC, INTEGRAL, MAXI, and Swift Gamma-Ray Burst Mission will look for transients in X-ray and gamma rays. Gamma ray bursts are a well known high energy electromagnetic transient.〔(【引用サイトリンク】title=Multi-Messenger Time Domain Astronomy Conference )
Tools used are robotic telescopes, automatic classification of transient events, rapid notification of interested people. Blinking two photographic plates enabled a person to spot the differences. Image subtraction requires a normalization of the pairs of images. Challenges include handling a huge amount of data storage and transfer, data mining techniques, classification, and heterogeneous data.〔
Historically time domain astronomy has come to include appearance of comets, and cepheid variable.〔 Old astronomical plates exposed from the late 1800s through the early 1990s held by the Harvard College Observatory are being digitized by the DASCH project.
Other causes of time variability are asteroids, eclipses, microlensing, planetary transits, variable stars.〔
==References==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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