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Mark Armah

3 papers here

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • middle author2
  • last author1

Across the 3 of 3 papers where every author was matched, so the position is known.

fields
  • astro-ph.GA3
ORCID 0000-0002-9746-3938

identity via Semantic Scholar / OpenAlex

most citedChemical abundances of Seyfert 2 AGNs-III. Reducing the oxygen abundance discrepancy

60 citations · 155 across the 3 of their papers we have counts for

collaborators

3 papers

astro-ph.GA2020★ 60 cited

Chemical abundances of Seyfert 2 AGNs-III. Reducing the oxygen abundance discrepancy

O. L. Dors, R. Maiolino, M. V. Cardaci +4

We investigate the discrepancy between oxygen abundance estimations for narrow-line regions (NLRs) of Active Galactic Nuclei (AGNs) type Seyfert 2 derived by using direct estimatio…

astro-ph.GA2020★ 51 cited

Chemical abundances of Seyfert 2 AGNs −II. N2 metallicity calibration based on SDSS

S. P. Carvalho, O. L. Dors, M. V. Cardaci +6

We present a semi-empirical calibration between the metallicity (Z) of Seyfert 2 Active Galactic Nuclei and the N2=log([N II]λ6584/Hα) emission-line intensity ratio. This c…

astro-ph.GA2019★ 44 cited

Chemical abundances of Seyfert 2 AGNs I. Comparing oxygen abundances from distinct methods using SDSS

O. L. Dors, P. Freitas-Lemes, E. B. Amores +6

We compare the oxygen abundance (O/H) of the Narrow Line Regions (NLRs) of Seyfert 2 AGNs obtained through strong-line methods and from direct measurements of the electron temperat…

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