COMPOSITION OF THE ORION NEBULA

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nebular

• Package in Space Telescope Science Data

Analysis System

• Shaw & Dufour (1995)

• Calculate temperatures, densities, and

abundances in IRAF

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nebular • Package in Space Telescope Science Data Analysis System • Shaw & Dufour (1995) • Calculate temperatures, densities, and abundances in IRAF

Temperature and Density Calculations • Strength of the forbidden lines is very sensitive to temperature • Due to weak/noisy lines needed to determine € temperature, values presented here are from the literature€ € T e (OIII) = T e(NII) = (4959 +5007) 4363 (6548 + 6584) 5755 N e (SII) = 6716 6731

Page 1 and 2: Kathryn Powell & Dr. Reginald Dufou
Page 3: • Clouds of ionized gas • Regio
Page 6 and 7: Measuring Line Intensi)es
Page 10 and 11: Abundance Calcula)ons Ionic abundan
Page 12: Conclusions • Determined elementa

COMPOSITION OF THE ORION NEBULA

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