ShaFES: Shamakhy Fibre Echelle Spectrograph

Mikailov, Kh. M.; Мусаев, Ф. А.; Alekberov, I. A.; Rustamov, B. N.; Khalilov, O. V.

doi:10.15407/kfnt2020.01.044

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…Description of these observations and results are given below in the following sections. with the photographical registration of spectra (see, e.g., [11]), and then was upgraded to record spectra using a CCD device [10] . This spectrograph was mainly used to obtain lowdispersion spectra of the faint non-stationary stars.…”

Section: Introductionmentioning

confidence: 99%

Changing looks of the nucleus of Seyfert galaxy NGC 3516 during 2016-2020

Oknyansky,

Mikailov,

Huseynov

2020

Preprint

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The results of spectral observations of NGC 3516 with the 2-m telescope of the Shamakhy Astrophysical Observatory during 2016-2020 are presented. In the first half of 2016, the intensive broad component Hβ was found, which indicates a spectral type change compared to 2014, when the broad component was almost invisible. In the second half of 2016, the broad component Hβ again was weakened and was practically not observed, remaining as weak until the end of 2019. At the end of 2019, the broad component Hβ strengthened again, and in May 2020 reached a typical level for the high state of the object. During 2016-2020 we observed several changing looks of NGC 3516.

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Section: Introductionmentioning

confidence: 99%

Changing looks of the nucleus of Seyfert galaxy NGC 3516 during 2016-2020

Oknyansky,

Mikailov,

Huseynov

2020

Preprint

Self Cite

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Life and activity of Nasir al-Din al-Tusi

Seyidbeyli

2020

Hist. sci. technol.

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At the beginning of the VII century in the political life of the Near and Middle East, fundamental changes have taken place. The Arabs conquered a colossal territory, which included the lands of Iran, North Africa, North-West India, the Asian provinces of Byzantium, most of the former Roman Empire. In the conquered cities of the caliphate, observatories, madaris, libraries were built. At the end of VII century, the first scientific center, an academy, the House of Wisdom, was founded in Baghdad, in which scholars who spoke different languages were assembled. Here the translation and commentary activity were very developed, the main works of ancient thought, such as the writings of Aristotle, Ptolemy were published in the 9th century in the Arabic-speaking world. For two centuries from 750 to 950 years, the works of ancient authors on philosophy, mathematics, medicine, alchemy, and astronomy were translated into Arabic, which indicates the high scientific potential of that time in the East. At the same time, in the XII century, Ibn Rushd composed 38 commentaries on the works of Aristotle, the “Republic” of Plato, the treatise “On the Mind” of Alexander of Aphrodisias, which subsequently had an important influence on the work of Nasir al-Din al-Tusi. Thus, this period in the history of Eastern scientific thought is marked by high intellectual potential. To this day, historians of medieval Arabic literature face a sufficient number of difficulties, since the vast majority of manuscripts remain inaccessible to them. The works of many renowned Arab authors of the middle Ages are more than 1000 years old, so it seems obvious that the manuscripts of the vast majority of authors have not survived to this day. The researchers of the history of Azerbaijan and neighboring countries in the middle Ages, with all the variety of available sources on which they rely, still attract little factual material related to the Arabic-language works of the historical and scientific genre. Undoubtedly, a comprehensive study of the entire complex of information of Nasir al-Din al-Tusi on the history of science in Azerbaijan is of great importance.

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ShaFES: Shamakhy Fibre Echelle Spectrograph

Cited by 2 publications

References 11 publications

Changing looks of the nucleus of Seyfert galaxy NGC 3516 during 2016-2020

Changing looks of the nucleus of Seyfert galaxy NGC 3516 during 2016-2020

Life and activity of Nasir al-Din al-Tusi

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