Data on the spectral variability of Kaz 102

Autor:	A. M. Mickaelian, M. A. Kazarian
Rok vydání:	2007
Předmět:	Physics Effective radius Electron density Continuum (design consultancy) Astronomy and Astrophysics Quasar Astrophysics Atomic physics Spectral composition Galaxy Spectral line
Zdroj:	Astrophysics. 50:127-134
ISSN:	1573-8191 0571-7256
Popis:	Results from a spectral study of the quasar Kaz 102 are presented. It is shown that its spectrum varies as a whole; that is, the parameters of both the lines and the continuum change. Based on a comparison of results presented previously and in this paper, it is concluded that over a time of approximately 27.5 years the equivalent widths and relative intensities of the lines have increased, while their half widths have decreased. The spectral composition of Kaz 102 has also changed: new lines, HeII λ4686, [OIII] λ4363, and others, appear in spectra of 2000 and 2001 which were not observed in spectra taken in 1973. The electron density, and the mass and effective radius of the gas component are determined to be 2·107 cm-3, 2·104 M⊙, and 0.2 pc.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::631f01c9483d3476fc7b32f9cffa56fd https://doi.org/10.1007/s10511-007-0013-y Zobrazit plný text záznamu Plný text ve formátu PDF