科研之友
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摘要
We present an atlas of starburst galaxy emission lines spanning 10 orders of magnitude in ionizing flux and 7 orders of magnitude in hydrogen number density. Coupling SEDs from Starburst99 with photoionization calculations from Cloudy, we track 96 emission lines from 977 angstrom to 205 mu m which are common to nebular regions, have been observed in H II regions, and serve as useful diagnostic lines. Each simulation grid displays equivalent widths and contains similar to 1.5 x 10(4) photoionization models calculated by supplying a spectral energy distribution, chemical abundances, dust content, and gas metallicity ( ranging from 0.2 Z(circle dot) to 5.0 Z(circle dot)). Our simulations will prove useful in starburst emission line data analysis, especially regarding local starburst galaxies that show high ionization emission lines. One sample application of our atlas predicts that C IV lambda 1549 will serve as a useful diagnostic emission line of vigorous star formation for coming James Webb Space Telescope observations predicting a peak equivalent width of approximately 316 angstrom.
- 出版日期2017-11
