Abstract
view Abstract Citations (19) References (42) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Near-Infrared Spectroscopy of the Planetary Nebula NGC 6572 Rudy, Richard J. ; Rossano, George S. ; Erwin, Peter ; Puetter, R. C. Abstract Spectroscopy of the PN NGC 6572 in the wavelength region 0.77-1.33 micron is presented. The measurement of line fluxes in regions of high telluric absorption is discussed, and an error in the wavelengths of forbidden P II reported in the literature is pointed out. The NGC 6572 continuum is well-matched by bound-free, free-free, and two-photon components at a temperature of 10,500 K. No significant contribution from the exciting star or hot dust is seen. The primary generation mechanism for the O I lines is fluorescent excitation by the stellar continuum. A sulfur abundance of 6.53 is derived, and N(P+)/N(S+) = 0.11 is found. This is much greater than the solar value and is probably due to the underabundance of S. Publication: The Astrophysical Journal Pub Date: February 1991 DOI: 10.1086/169711 Bibcode: 1991ApJ...368..468R Keywords: Infrared Spectroscopy; Planetary Nebulae; Stellar Spectra; Emission Spectra; Line Spectra; Near Infrared Radiation; Oxygen; Phosphorus; Sulfur; Astrophysics; INFRARED: SPECTRA; NEBULAE: INDIVIDUAL NGC NUMBER: NGC 6572; NEBULAE: PLANETARY full text sources ADS | data products SIMBAD (2)
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