Μετάφραση και ανάλυση λέξεων από την τεχνητή νοημοσύνη ChatGPT
Σε αυτήν τη σελίδα μπορείτε να λάβετε μια λεπτομερή ανάλυση μιας λέξης ή μιας φράσης, η οποία δημιουργήθηκε χρησιμοποιώντας το ChatGPT, την καλύτερη τεχνολογία τεχνητής νοημοσύνης μέχρι σήμερα:
- πώς χρησιμοποιείται η λέξη
- συχνότητα χρήσης
- χρησιμοποιείται πιο συχνά στον προφορικό ή γραπτό λόγο
- επιλογές μετάφρασης λέξεων
- παραδείγματα χρήσης (πολλές φράσεις με μετάφραση)
- ετυμολογία
Τι (ποιος) είναι galactic nucleus - ορισμός
![Quasar [[3C 273]] observed by the [[Hubble Space Telescope]]. The [[relativistic jet]] of 3C 273 appears to the left of the bright quasar, and the four straight lines pointing outward from the central source are [[diffraction spikes]] caused by the telescope optics.](https://commons.wikimedia.org/wiki/Special:FilePath/Best image of bright quasar 3C 273.jpg?width=200 "Quasar [[3C 273]] observed by the [[Hubble Space Telescope]]. The [[relativistic jet]] of 3C 273 appears to the left of the bright quasar, and the four straight lines pointing outward from the central source are [[diffraction spikes]] caused by the telescope optics.")
![galaxy M87]]. The blue [[synchrotron radiation]] contrasts with the yellow starlight from the host galaxy.](https://commons.wikimedia.org/wiki/Special:FilePath/M87 jet.jpg?width=200 "galaxy M87]]. The blue [[synchrotron radiation]] contrasts with the yellow starlight from the host galaxy.")
Βικιπαίδεια
An active galactic nucleus (AGN) is a compact region at the center of a galaxy that has a much-higher-than-normal luminosity over at least some portion of the electromagnetic spectrum with characteristics indicating that the luminosity is not produced by stars. Such excess non-stellar emission has been observed in the radio, microwave, infrared, optical, ultra-violet, X-ray and gamma ray wavebands. A galaxy hosting an AGN is called an "active galaxy". The non-stellar radiation from an AGN is theorized to result from the accretion of matter by a supermassive black hole at the center of its host galaxy.
Active galactic nuclei are the most luminous persistent sources of electromagnetic radiation in the universe, and as such can be used as a means of discovering distant objects; their evolution as a function of cosmic time also puts constraints on models of the cosmos.
The observed characteristics of an AGN depend on several properties such as the mass of the central black hole, the rate of gas accretion onto the black hole, the orientation of the accretion disk, the degree of obscuration of the nucleus by dust, and presence or absence of jets.
Numerous subclasses of AGN have been defined based on their observed characteristics; the most powerful AGN are classified as quasars. A blazar is an AGN with a jet pointed toward the Earth, in which radiation from the jet is enhanced by relativistic beaming.
