Spectral Monitoring of AGN: Preliminary Results for Ark 564 and Arp 102B
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AbstractWe present preliminary results of the long-term spectral monitoring of two active galactic nuclei with different broad line shapes: Ark 564 and Arp 102B. Ark 564 is a bright nearby narrow-line Syfert 1 (NLS1) galaxy with relatively narrow permitted optical emission lines and a high Fe II/Hβ ratio, while Arp 102B is a nearby broad-line radio galaxy with broad double-peaked Balmer emission lines. The spectra of Ark 564 were observed during 11-year period (1999-2009) and the spectra of Arp 102B in the 12-year period (1998-2009), with SAO 6 m and 1 m telescopes (Russia) and the OAGH 2.1 m telescope (Cananea, Mexico).
2021 ◽
Vol 507
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pp. 5205-5213
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2014 ◽
Vol 793
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pp. 100
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2009 ◽
Vol 121
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pp. 1440-1441
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1999 ◽
Vol 194
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pp. 414-415
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2009 ◽
Vol 53
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pp. 133-139
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1994 ◽
Vol 159
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pp. 463-463
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2011 ◽
Vol 738
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pp. 68
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