Published July 1989
| Version v1
Journal article
Detection of the O I 11287 A line in the Seyfert 1 galaxy I Zw 1
Description
This paper reports a detection of the infrared 11287 A transition of neutral oxygen in the Seyfert 1 galaxy I Zw 1. The observed strength of the feature is 6.5 x 10 to the -14th erg/sq cm sec. When this value is compared to the flux of O I 8446A measured by Persson and McGregor (1985), the ratio of the photon fluxes is unity, to within the measurement uncertainties. This is a direct confirmation that the broad permitted O I lines observed in Seyfert 1 galaxies and quasars arise through fluorescent excitation by Lyman Beta. 17 refs
Additional details
Publishing Information
- Journal Title
- Astrophysical Journal
- Journal Volume
- 342
- Series
- Astrophys. J.
- Journal Page Range
- 235-237
- ISSN
- 0004-637X
- CODEN
- ASJOA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21012541
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- EMISSION SPECTRA; ENERGY-LEVEL TRANSITIONS; FLUORESCENCE; LYMAN LINES; OXYGEN; QUASARS; SEYFERT GALAXIES
- Descriptors DEC
- COSMIC RADIO SOURCES; ELEMENTS; EMISSION; GALAXIES; LUMINESCENCE; NONMETALS; PHOTON EMISSION; SPECTRA