Spectral variations in the broad-line region of NGC 6814 | Zendy

K. Sekiguchi | Zendy; J. W. Menzies | Zendy

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Spectral variations in the broad-line region of NGC 6814

Author(s) -

K. Sekiguchi,

J. W. Menzies

Publication year - 1990

Publication title -

monthly notices of the royal astronomical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.058

H-Index - 383

eISSN - 1365-8711

pISSN - 0035-8711

DOI - 10.1093/mnras/245.1.66

Subject(s) - physics , balmer series , astrophysics , galaxy , emission spectrum , line (geometry) , flux (metallurgy) , spectral line , astronomy , spectroscopy , geometry , mathematics , materials science , metallurgy

Summary We present optical spectroscopy of the Seyfert galaxy NGC 6814 obtained at the SAAO over a two-year period from 1983 May to 1985 October. During this period, the spectrum changed from Seyfert 1 to more closely resemble that of Seyfert 1.8-1.9. The Hβ flux decreased by more than a factor of 2 within two months. The decrease in the broad Balmer emission line strength was coupled with a decrease in the X-ray output.

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