Emission and recombination coefficients for hydrogen with kappa-distributed electron energies

Abstract

We provide a data set of emission and recombination coefficients of hydrogen using a kappa-distribution of electron energies rather than the more traditional Maxwell-Boltzmann (MB) distribution. The data are mainly relevant to thin and relatively cold plasma found in planetary nebulae and H II regions. The data set extends the previous data sets provided by Storey and Hummer which were computed using a MB distribution. The data set, which is placed in the public domain, is structured as a function of electron number density, temperature and kappa. Interactive fortran 77 and C++ data servers are also provided as an accessory to probe the data and obtain Lagrange-interpolated values for any choice of all three variables between the explicitly computed values.

3 pages

References in corpus (2)

• Resolving the electron temperature discrepancies in HII Regions and Planetary Nebulae: kappa-distributed electrons
• Electron Temperatures and Free-Electron Energy Distributions of Nebulae from C II Dielectronic Recombination Lines

Cited by in corpus (9)

• The PHLEK Survey: A New Determination of the Primordial Helium Abundance
• NEBULAR: A simple synthesis code for the hydrogen and helium nebular spectrum
• Effective collision strengths for excitation and de-excitation of nebular [O III] optical and infrared lines with kappa distributed electron energies
• NuSTAR hard X-ray data and Gemini 3D spectra reveal powerful AGN and outflow histories in two low-redshift Lyman-$\alpha$ blobs
• On the treatment of $\ell$-changing proton-hydrogen Rydberg atom collisions
• Can the Kappa-distributed electron energies account for the intensity ratios of O II lines in photoionized gaseous nebulae?
• Testing atomic collision theory with the two-photon continuum of astrophysical nebulae
• Efficient computation of collisional $\ell$-mixing rate coefficients in astrophysical plasmas
• Non-Maxwellian rate coefficients for electron and ion collisions in Rydberg plasmas: implications for excitation and ionization