An atlas of star-forming galaxy equivalent widths
| Autor: | Helen Meskhidze, Chris T. Richardson |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Physics
010308 nuclear & particles physics Star formation Astrophysics::High Energy Astrophysical Phenomena Metallicity FOS: Physical sciences Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Photoionization Astrophysics Astrophysics - Astrophysics of Galaxies 01 natural sciences Galaxy Space and Planetary Science Astrophysics of Galaxies (astro-ph.GA) Ionization 0103 physical sciences Astrophysics::Solar and Stellar Astrophysics Spectral energy distribution Astrophysics::Earth and Planetary Astrophysics Emission spectrum 010303 astronomy & astrophysics Equivalent width Astrophysics::Galaxy Astrophysics |
| Zdroj: | Astrophysics and Space Science. 362 |
| ISSN: | 1572-946X 0004-640X |
| DOI: | 10.1007/s10509-017-3178-9 |
| Popis: | 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 {\AA} to 205 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 ~1.5x10$^4$ photoionization models calculated by supplying a spectral energy distribution, chemical abundances, dust content, and gas metallicity (ranging from 0.2 Z$\odot$ to 5.0 Z$\odot$). 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 {\AA}. Comment: 33 pages; 8 figures; 1 table; accepted to Astrophys. Space Sci |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink