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- W1985767035 abstract "view Abstract Citations (16) References (47) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Near-Infrared [Fe ii] Lines of MWC 922 Rudy, Richard J. ; Erwin, Peter ; Rossano, George S. ; Puetter, R. C. Abstract Near-infrared (between 0.8 and 1.6 micron) spectrophotometry of a strong Fe II forbidden line source MWC 922 is presented, showing two distinct emission-line regions: (1) a high-density region (ne of not less than 10 exp 10/cu cm); and (2) a low-density region (ne of about 10 exp 5/cu cm) which produces the Fe II forbidden line features. The high-density region is similar to the circumstellar envelopes occasionally seen in Be stars and common to young stellar objects, while the low-density region generates emission of exceptional strength. The detections or useful upper limits for nine Fe II forbidden line features between 1.25 and 1.54 micron are used to test the accuracy of theoretically derived transition probabilities. It was found that the measured intensity ratios of all the lines agree with the values predicted from the transition probabilities of Nussbaumer and Storey (1980, 1988) to within 30 percent. Publication: The Astrophysical Journal Pub Date: October 1992 DOI: 10.1086/171855 Bibcode: 1992ApJ...398..278R Keywords: B Stars; Emission Spectra; Forbidden Bands; Iron; Near Infrared Radiation; Stellar Spectrophotometry; Electron Density (Concentration); Interstellar Extinction; Metallicity; Stellar Envelopes; Transition Probabilities; Astrophysics; INFRARED: STARS; STARS: EMISSION-LINE; BE; STARS: INDIVIDUAL ALPHANUMERIC: MWC 922 full text sources ADS | data products SIMBAD (6)" @default.
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- W1985767035 date "1992-10-01" @default.
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- W1985767035 title "The near-infrared Fe II forbidden lines of MWC 922" @default.
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