Near-infrared emission-line spectra of the Orion Nebula, NGC 4151, and other Seyfert galaxies

Journal Article · Sat Mar 31 23:00:00 EST 1990 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/168558· OSTI ID:6770085

Osterbrock, D E; Shaw, R A; Veilleux, S ^[1]

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1. California Univ., Santa Cruz (USA)

Near-IR CCD moderate-resolution spectra in the 7000-11,000 wavelength range were obtained for NGC 1976 and NGC 4151 in three overlapping segments. The strongest three lines in both objects are forbidden S III 9531, He I 10830, and forbidden S III 9069. Also, lower resolution spectra of 14 additional Seyfert galaxies were obtained. In all but two of these spectra, the strongest line is forbidden S III 9531. The line strengths among these galaxies are compared to trace ionization behavior. 59 refs.

• OSTI ID: 6770085
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 352; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHARGE-COUPLED DEVICES
DATA PROCESSING
ELECTROMAGNETIC RADIATION
EMISSION SPECTRA
GALAXIES
INFRARED RADIATION
INFRARED SPECTRA
IONIZATION
NEAR INFRARED RADIATION
NEBULAE
PROCESSING
RADIATIONS
SEMICONDUCTOR DEVICES
SEYFERT GALAXIES
SPECTRA