Calibration-based abundances in the interstellar gas of galaxies from slit and IFU spectra

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dc.contributor.authorPilyugin, Leonid
dc.contributor.authorLara-López, Maritza A.
dc.contributor.authorVílchez, Jose M.
dc.contributor.authorDuarte Puertas, Salvador
dc.contributor.authorZinchenko, Igor
dc.contributor.authorDors Junior, Oli Luiz
dc.date.accessioned2025-03-13T18:12:43Z
dc.date.available2025-03-13T18:12:43Z
dc.date.issued22022
dc.description.abstractIn this work, we make use of available integral field unit (IFU) spectroscopy and slit spectra of several nearby galaxies. The pre- existing empirical R and S calibrations for abundance determinations are constructed using a sample of H ii regions with high- quality slit spectra. In this paper, we test the applicability of those calibrations to the IFU spectra. We estimate the calibration-based abundances obtained using both the IFU and the slit spectroscopy for eight nearby galaxies. The median values of the slit and IFU spectra-based abundances in bins of 0.1 in fractional radius Rg (normalised to the optical radius R25) of a galaxy are determined and compared. We find that the IFU and the slit spectra-based abundances obtained through the R calibration are close to each other; the mean value of the differences of abundances is 0.005 dex, and the scatter in the differences is 0.037 dex for 38 datapoints. The S calibration can produce systematically underestimated values of the IFU spectra-based abundances at high metallicities (12 + log(O/H) 􏰅8.55); the mean value of the differences is −0.059 dex for 21 datapoints, while at lower metallicities the mean value of the differences is −0.018 dex and the scatter is 0.045 dex for 36 data points. This provides evidence that the R calibration produces more consistent abundance estimations between the slit and the IFU spectra than the S calibration. We find that the same calibration can produce close estimations of the abundances using IFU spectra obtained with different spatial resolution and different spatial samplings. This is in line with the recent finding that the contribution of the diffuse ionised gas to the large-aperture spectra of H ii regions has a secondary effect.
dc.description.physical13 p.
dc.format.mimetypePDF
dc.identifier.affiliationUniversidade do Vale do Paraíba
dc.identifier.affiliationVilnius University
dc.identifier.affiliationNational Academy of Sciences of Ukraine
dc.identifier.affiliationUniversidad Complutense de Madrid
dc.identifier.affiliationInstituto de Astrofísica de Andalucía
dc.identifier.affiliationUniversité Laval
dc.identifier.affiliationLudwig-Maximilians-Universität,
dc.identifier.bibliographicCitationPILYUGIN, Leonid et al. Calibration-based abundances in the interstellar gas of galaxies from slit and IFU spectra. Astronomy & Astrophysics, v. 668, p. 1-13, 2022. Disponível em: https://www.aanda.org/10.1051/0004-6361/202244231.
dc.identifier.doi10.1051/0004-6361/202244231
dc.identifier.urihttps://repositorio.univap.br/handle/123456789/693
dc.language.isoen_US
dc.publisherEDP Sciences
dc.rights.holderAstronomy & Astrophysics
dc.subject.keywordISM:abundances
dc.subject.keywordGalaxy:abundances
dc.titleCalibration-based abundances in the interstellar gas of galaxies from slit and IFU spectra
dc.typeArtigos de Periódicos

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