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

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

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...352..561o&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 352, April 1, 1990, p. 561-573. Research supported by NSERC and Ministere d

Astronomy and Astrophysics

Astrophysics

59

Charge Coupled Devices, Emission Spectra, Infrared Spectra, Near Infrared Radiation, Orion Nebula, Seyfert Galaxies, Data Reduction, Night Sky, Transition Probabilities

Scientific paper

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.

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