Determining star formation rates in AGN hosts from strong optical emission lines
ABSTRACT The influence of Active Galactic Nuclei (AGN) on star formation within their host galaxies remains a topic of intense debate. One of the primary challenges in quantifying the star formation rate (SFR) within AGN hosts arises from the prevalent assumption in most methodologies, which attribute gas excitation to young stars alone. However, this assumption does not consider the contribution of the AGN to the ionization of the gas in their environment. To address this issue, we evaluate the use of strong optical emission lines to obtain the SFR surface density ($\Sigma {{\rm SFR_{AGN}}}$) in regions predominantly ionized by an AGN, using a sample of 293 AGN hosts from the MaNGA survey, with SFR measurements available through stellar population fitting. We propose calibrations involving the H$\alpha$ and [O iii]$\lambda$5007 emission lines, which can be used to determine $\Sigma {{\rm SFR_{AGN}}}$, resulting in values consistent with those estimated through stellar population fitting.
Authors
- Marina Trevisan (ORCID: https://orcid.org/0000-0001-7309-8609)
- A. C. Krabbe (ORCID: https://orcid.org/0000-0003-4630-1311)
- Nícolas D Mallmann (ORCID: https://orcid.org/0000-0001-9159-004X)
- Lara Gatto (ORCID: https://orcid.org/0000-0002-8589-8264)
- Dominika Wylezalek (ORCID: https://orcid.org/0000-0003-2212-6045)
- Rogemar A. Riffel (ORCID: https://orcid.org/0000-0003-0483-3723)
- Marco Albán
- J. S. Schimoia (ORCID: https://orcid.org/0000-0002-5640-6697)
- Rogério Riffel (ORCID: https://orcid.org/0000-0002-1321-1320)
- Gabriele S Ilha (ORCID: https://orcid.org/0000-0001-9100-6106)
- O. L. Dors (ORCID: https://orcid.org/0000-0003-4782-1570)
- Sandro B Rembold (ORCID: https://orcid.org/0000-0003-0880-5738)
- Thaisa Storchi‐Bergmann (ORCID: https://orcid.org/0000-0003-1772-0023)
- Maitê S Z de Mellos
Institutions
- Universidade do Vale do Paraíba (BR)
- Universidade Federal do Rio Grande do Sul (BR)
- Heidelberg University (DE)
- Universidade Federal de Santa Maria (BR)
- Laboratório Interinstitucional de e-Astronomia (BR)
Publication Details
- Journal
- Monthly Notices of the Royal Astronomical Society
- Published
- 2024-10-11
- DOI
- https://doi.org/10.1093/mnras/stae2352
- Citations
- 3
- Primary Topic
- Galaxies: Formation, Evolution, Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 0.99
Funders
- Smithsonian Institution
- Yale University
- Carnegie Institution of Washington
- Vanderbilt University
- New York University
- Ohio State University
- University of Wisconsin-Madison
- University of Utah
- University of Washington
- Johns Hopkins University
- University of Arizona
- Carnegie Mellon University
- University of Notre Dame
- Pennsylvania State University
- University of Virginia
- University of Portsmouth
- New Mexico State University
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Ministério da Ciência, Tecnologia e Inovação
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul
- University of Tokyo
- Universidad Nacional Autónoma de México
- Max-Planck-Institut für Astronomie
- University of Colorado Boulder
- Smithsonian Astrophysical Observatory
- Leibniz-Gemeinschaft
- Lawrence Berkeley National Laboratory