Detailed characterisation of LINERs and retired galaxies in the local universe

dc.contributor.authorMazengo, Daudi T.
dc.contributor.authorPović, Mirjana
dc.contributor.authorJiwaji, Noorali T.
dc.contributor.authorSunzu, Jefta M.
dc.date.accessioned2023-08-15T07:43:08Z
dc.date.available2023-08-15T07:43:08Z
dc.date.issued2021
dc.descriptionAbstract. Full text conference proceeding available at https://doi.org/10.1017/S1743921320003233en_US
dc.description.abstractWe present a detailed characterisation of physical properties of low-ionization nuclear emission-line regions (LINERs) and retired galaxies (RGs) in the local universe for redshift range 0 < z < 0.4 and two subranges z < 0.4 and 0.1 < z < 0.4. Furthermore, we test the effectiveness of WHAN diagnostic diagram in separating the two populations. We used photometric data, public spectroscopic data and morphological classification from SDSS-DR8, MPA-JHU SDSS-DR8 catalogue and Galaxy Zoo survey, respectively. We studied the distribution of LINERs, RGs and AGN-LINERs in relation to luminosity, stellar mass, star formation rate (SFR), colour, and their location on the SFR-stellar mass and colour-stellar mass diagrams. We then studied the morphologies of both populations. Results have shown that for higher redshift range, AGN-LINERs have higher apparent g magnitude, SFRs and dominate on/above the main sequence (MS) of star formation compared to RGs. However, both populations have similar stellar mass and luminosity distributions at all redshift ranges hence suggesting a significant difference in terms of star formation of RGs and AGN-LINERs with redshift. However, larger and more complete samples of LINERs are needed from the future surveys (e.g., LSST) and missions (e.g., JWST) to study in more details the properties of RGs and AGN-LINERs and find alternative methods of separating the two populations, since using simply WHAN diagram from our study we do not find it to be effective for separating the two populations.en_US
dc.identifier.citationMazengo, D. T., Pović, M., Jiwaji, N. T., & Sunzu, J. M. (2019). Detailed characterisation of LINERs and retired galaxies in the local universe. Proceedings of the International Astronomical Union, 15(S356), 323-325.en_US
dc.identifier.otherDOI: https://doi.org/10.1017/S1743921320003233
dc.identifier.urihttp://hdl.handle.net/20.500.12661/4077
dc.language.isoenen_US
dc.publisherCambridge University Pressen_US
dc.subjectLINERsen_US
dc.subjectRetired galaxiesen_US
dc.subjectLocal universeen_US
dc.subjectAGN-LINERsen_US
dc.subjectWHAN diagnostic methoden_US
dc.subjectWHANen_US
dc.subjectRedshift rangeen_US
dc.subjectionization nuclearen_US
dc.subjectNuclear emissionen_US
dc.titleDetailed characterisation of LINERs and retired galaxies in the local universeen_US
dc.typeConference Proceedingsen_US
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