GASP. XLV. Stellar Bars in Jellyfish Galaxies: Analysis of Ionized Gas and Stellar Populations
Stellar bars have been found to substantially influence the properties of stellar populations in galaxies, affecting their ability to form stars. While this can be easily seen when studying galaxies in relatively isolated environments, such type of analysis requires a higher degree of complexity whe...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/acb269 |
| _version_ | 1797701478315458560 |
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| author | Osbaldo Sánchez-García Bernardo Cervantes Sodi Jacopo Fritz Alessia Moretti Bianca M. Poggianti Koshy George Marco Gullieuszik Benedetta Vulcani Giovanni Fasano Amira A. Tawfeek |
| author_facet | Osbaldo Sánchez-García Bernardo Cervantes Sodi Jacopo Fritz Alessia Moretti Bianca M. Poggianti Koshy George Marco Gullieuszik Benedetta Vulcani Giovanni Fasano Amira A. Tawfeek |
| author_sort | Osbaldo Sánchez-García |
| collection | DOAJ |
| description | Stellar bars have been found to substantially influence the properties of stellar populations in galaxies, affecting their ability to form stars. While this can be easily seen when studying galaxies in relatively isolated environments, such type of analysis requires a higher degree of complexity when cluster galaxies are considered, due to the variety of interactions that can potentially occur in these denser environments. We use IFU MUSE data from the GASP survey to study the combined effect of the presence of a stellar bar and ram pressure, on spatially resolved properties of stellar populations. We have analyzed spatially resolved indicators of both recent star formation rates (SFRs) and average stellar population ages to check for signatures of anomalous central star formation activity, also taking into account the possible presence of nuclear activity. We found an increase in central SFR in ram-pressure-affected galaxies when compared with unperturbed ones. The most extreme cases of increased SFR and central rejuvenation occur in barred galaxies that are at advanced stages of ram pressure stripping. For low-mass barred galaxies affected by ram pressure, the combined effect is the systematic enhancement of the star formation activity as opposed to the case of high-mass galaxies, which present both enhancement and suppression. Barred galaxies that present suppression of their star formation activity also present signatures of nuclear activity. Our results indicate that the combined effect of the presence of a bar and strong perturbation by ram pressure is able to trigger the central star formation activity and probably ignite nuclear activity. |
| first_indexed | 2024-03-12T04:37:15Z |
| format | Article |
| id | doaj.art-b004e9e997244990a1c8d80fd3d2fbb2 |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-12T04:37:15Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-b004e9e997244990a1c8d80fd3d2fbb22023-09-03T09:55:17ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-0194529910.3847/1538-4357/acb269GASP. XLV. Stellar Bars in Jellyfish Galaxies: Analysis of Ionized Gas and Stellar PopulationsOsbaldo Sánchez-García0https://orcid.org/0000-0002-2808-1223Bernardo Cervantes Sodi1https://orcid.org/0000-0002-2897-9121Jacopo Fritz2https://orcid.org/0000-0002-7042-1965Alessia Moretti3https://orcid.org/0000-0002-1688-482XBianca M. Poggianti4https://orcid.org/0000-0001-8751-8360Koshy George5https://orcid.org/0000-0002-1734-8455Marco Gullieuszik6https://orcid.org/0000-0002-7296-9780Benedetta Vulcani7https://orcid.org/0000-0003-0980-1499Giovanni Fasano8https://orcid.org/0000-0002-5660-1054Amira A. Tawfeek9Instituto de Radioastronomía y Astrofísica, Universidad Nacional Autónoma de México , Antigua Carretera a Pátzcuaro # 8701, Ex-Hda. San José de la Huerta, Morelia, Michoacán, C.P. 58089, México ; o.sanchez@irya.unam.mxInstituto de Radioastronomía y Astrofísica, Universidad Nacional Autónoma de México , Antigua Carretera a Pátzcuaro # 8701, Ex-Hda. San José de la Huerta, Morelia, Michoacán, C.P. 58089, México ; o.sanchez@irya.unam.mxInstituto de Radioastronomía y Astrofísica, Universidad Nacional Autónoma de México , Antigua Carretera a Pátzcuaro # 8701, Ex-Hda. San José de la Huerta, Morelia, Michoacán, C.P. 58089, México ; o.sanchez@irya.unam.mxINAF—Astronomical Observatory of Padova , vicolo dell’Osservatorio 5, I-35122 Padova, ItalyINAF—Astronomical Observatory of Padova , vicolo dell’Osservatorio 5, I-35122 Padova, ItalyFaculty of Physics, Ludwig-Maximilians-Universität , Scheinerstr. 1, Munich D-81679, GermanyINAF—Astronomical Observatory of Padova , vicolo dell’Osservatorio 5, I-35122 Padova, ItalyINAF—Astronomical Observatory of Padova , vicolo dell’Osservatorio 5, I-35122 Padova, ItalyIndependent ResearcherInstituto de Radioastronomía y Astrofísica, Universidad Nacional Autónoma de México , Antigua Carretera a Pátzcuaro # 8701, Ex-Hda. San José de la Huerta, Morelia, Michoacán, C.P. 58089, México ; o.sanchez@irya.unam.mx; National Research Institute of Astronomy and Geophysics (NRIAG) , 11421 Helwan, Cairo, EgyptStellar bars have been found to substantially influence the properties of stellar populations in galaxies, affecting their ability to form stars. While this can be easily seen when studying galaxies in relatively isolated environments, such type of analysis requires a higher degree of complexity when cluster galaxies are considered, due to the variety of interactions that can potentially occur in these denser environments. We use IFU MUSE data from the GASP survey to study the combined effect of the presence of a stellar bar and ram pressure, on spatially resolved properties of stellar populations. We have analyzed spatially resolved indicators of both recent star formation rates (SFRs) and average stellar population ages to check for signatures of anomalous central star formation activity, also taking into account the possible presence of nuclear activity. We found an increase in central SFR in ram-pressure-affected galaxies when compared with unperturbed ones. The most extreme cases of increased SFR and central rejuvenation occur in barred galaxies that are at advanced stages of ram pressure stripping. For low-mass barred galaxies affected by ram pressure, the combined effect is the systematic enhancement of the star formation activity as opposed to the case of high-mass galaxies, which present both enhancement and suppression. Barred galaxies that present suppression of their star formation activity also present signatures of nuclear activity. Our results indicate that the combined effect of the presence of a bar and strong perturbation by ram pressure is able to trigger the central star formation activity and probably ignite nuclear activity.https://doi.org/10.3847/1538-4357/acb269Barred spiral galaxiesRam pressure stripped tailsGalaxy clustersStar formationGalaxy evolutionSpiral galaxies |
| spellingShingle | Osbaldo Sánchez-García Bernardo Cervantes Sodi Jacopo Fritz Alessia Moretti Bianca M. Poggianti Koshy George Marco Gullieuszik Benedetta Vulcani Giovanni Fasano Amira A. Tawfeek GASP. XLV. Stellar Bars in Jellyfish Galaxies: Analysis of Ionized Gas and Stellar Populations The Astrophysical Journal Barred spiral galaxies Ram pressure stripped tails Galaxy clusters Star formation Galaxy evolution Spiral galaxies |
| title | GASP. XLV. Stellar Bars in Jellyfish Galaxies: Analysis of Ionized Gas and Stellar Populations |
| title_full | GASP. XLV. Stellar Bars in Jellyfish Galaxies: Analysis of Ionized Gas and Stellar Populations |
| title_fullStr | GASP. XLV. Stellar Bars in Jellyfish Galaxies: Analysis of Ionized Gas and Stellar Populations |
| title_full_unstemmed | GASP. XLV. Stellar Bars in Jellyfish Galaxies: Analysis of Ionized Gas and Stellar Populations |
| title_short | GASP. XLV. Stellar Bars in Jellyfish Galaxies: Analysis of Ionized Gas and Stellar Populations |
| title_sort | gasp xlv stellar bars in jellyfish galaxies analysis of ionized gas and stellar populations |
| topic | Barred spiral galaxies Ram pressure stripped tails Galaxy clusters Star formation Galaxy evolution Spiral galaxies |
| url | https://doi.org/10.3847/1538-4357/acb269 |
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