11 citations · 24 across the 17 of their papers we have counts for
5 papers · 1 filter
Generalized ([OIII])-(HeI) Discrepancies in Ionized Nebulae: Possible Evidence of Case B Deviations and Temperature Inhomogeneities
J. E. Méndez-Delgado, E. D. Skillman, E. Aver +11
The physics of recombination lines (RLs) in the HeI singlet system is expected to be relatively simple, supported by accurate atomic models. We examine the intensities of HeI singl…
The JWST Emission Line Survey (JELS): An untargeted search for H emission line galaxies at and their physical properties
C. A. Pirie, P. N. Best, K. J. Duncan +19
We present the first results of the JWST Emission Line Survey (JELS). Utilising the first NIRCam narrow-band imaging at 4.7m, over 63 arcmin in the PRIMER/COSMOS field, we…
The JWST Emission Line Survey (JELS): Extending rest-optical narrow-band emission line selection into the Epoch of Reionization
K. J. Duncan, D. J. McLeod, P. N. Best +20
We present the JWST Emission Line Survey (JELS), a JWST imaging programme exploiting the wavelength coverage and sensitivity of NIRCam to extend narrow-band rest-optical emission l…
Empirical calibration for helium abundance determinations in Active Galactic Nuclei
O. L. Dors, G. C. Almeida, C. B. Oliveira +10
For the first time, a calibration between the HeI /H emission line ratio and the helium abundance =12+log(He/H) for Narrow line regions (NLRs) of Seyfert~2 Activ…
Direct estimates of nitrogen abundance for Seyfert 2 nuclei
O. L. Dors, M. V. Cardaci, G. F. Hägele +10
We derive the nitrogen and oxygen abundances in the Narrow Line Regions (NLRs) of a sample of 38 local () Seyfert~2 nuclei. For that, we consider narrow optical emis…