Shocked POststarburst Galaxy Survey. IV. Outflows in Shocked Poststarburst Galaxies Are Not Responsible for Quenching
Shocked POstarburst Galaxies (SPOGs) exhibit both emission lines suggestive of shock-heated gas and poststarburst-like stellar absorption, resulting in a unique subset for galaxy evolution studies. We have observed 77 galaxies that fulfilled the SPOG criteria selection using the DeVeny Spectrograph...
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2025-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/ad900f |
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| author | Antoniu Fodor Taylor Tomko Mary Braun Anne M. Medling Thomas M. Johnson Alexander Thompson Victor D. Johnston Matthew Newhouse Yuanze Luo K. Decker French Justin A. Otter Akshat Tripathi Margaret E. Verrico Katherine Alatalo Kate Rowlands Timothy Heckman |
| author_facet | Antoniu Fodor Taylor Tomko Mary Braun Anne M. Medling Thomas M. Johnson Alexander Thompson Victor D. Johnston Matthew Newhouse Yuanze Luo K. Decker French Justin A. Otter Akshat Tripathi Margaret E. Verrico Katherine Alatalo Kate Rowlands Timothy Heckman |
| author_sort | Antoniu Fodor |
| collection | DOAJ |
| description | Shocked POstarburst Galaxies (SPOGs) exhibit both emission lines suggestive of shock-heated gas and poststarburst-like stellar absorption, resulting in a unique subset for galaxy evolution studies. We have observed 77 galaxies that fulfilled the SPOG criteria selection using the DeVeny Spectrograph on the Lowell Discovery Telescope. Our long-slit minor axis spectra detect H α and [O III ] in some SPOGs out to 6 kpc above the galactic plane. We find extraplanar ionized gas in 31 targets of our sample overall. Using their internal and external kinematics, we argue that 22 galaxies host outflows with ionized gas masses ranging from 10 ^2 M _⊙ to 10 ^5 M _⊙ . The rest are likely extended diffuse ionized gas. A positive correlation exists between active galactic nuclei (AGN) luminosity and the extraplanar gas extent, velocity dispersion, and mass—suggesting that the AGN may indeed drive the outflows detected in AGN hosts. The low masses of the extraplanar gas suggest that these outflows are not depleting each galaxy’s gas reserves. The outflows, therefore, are not likely a significant quenching mechanism in these SPOGs. |
| format | Article |
| id | doaj-art-ff72443778fb48cabbbfc6d31110dbc3 |
| institution | Kabale University |
| issn | 1538-4357 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj-art-ff72443778fb48cabbbfc6d31110dbc32025-01-20T10:47:35ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-0197919410.3847/1538-4357/ad900fShocked POststarburst Galaxy Survey. IV. Outflows in Shocked Poststarburst Galaxies Are Not Responsible for QuenchingAntoniu Fodor0https://orcid.org/0009-0007-2501-3931Taylor Tomko1Mary Braun2Anne M. Medling3https://orcid.org/0000-0001-7421-2944Thomas M. Johnson4Alexander Thompson5Victor D. Johnston6Matthew Newhouse7Yuanze Luo8https://orcid.org/0000-0002-0696-6952K. Decker French9https://orcid.org/0000-0002-4235-7337Justin A. Otter10https://orcid.org/0000-0003-3191-9039Akshat Tripathi11https://orcid.org/0000-0002-6582-4946Margaret E. Verrico12https://orcid.org/0000-0003-1535-4277Katherine Alatalo13https://orcid.org/0000-0002-4261-2326Kate Rowlands14https://orcid.org/0000-0001-7883-8434Timothy Heckman15https://orcid.org/0000-0001-6670-6370Department of Physics & Astronomy and Ritter Astrophysical Research Center, University of Toledo , Toledo, OH 43606, USADepartment of Physics & Astronomy and Ritter Astrophysical Research Center, University of Toledo , Toledo, OH 43606, USADepartment of Physics & Astronomy and Ritter Astrophysical Research Center, University of Toledo , Toledo, OH 43606, USADepartment of Physics & Astronomy and Ritter Astrophysical Research Center, University of Toledo , Toledo, OH 43606, USADepartment of Physics & Astronomy and Ritter Astrophysical Research Center, University of Toledo , Toledo, OH 43606, USA; UKIRT Observatory, Institute for Astronomy, 640 N. Aohoku Place, University Park , HI 96720, USADepartment of Physics & Astronomy and Ritter Astrophysical Research Center, University of Toledo , Toledo, OH 43606, USA; UKIRT Observatory, Institute for Astronomy, 640 N. Aohoku Place, University Park , HI 96720, USADepartment of Physics & Astronomy and Ritter Astrophysical Research Center, University of Toledo , Toledo, OH 43606, USADepartment of Physics & Astronomy and Ritter Astrophysical Research Center, University of Toledo , Toledo, OH 43606, USAWilliam H. Miller III Department of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USADepartment of Astronomy, University of Illinois at Urbana-Champaign , 1002 W Green Street, Urbana, IL 61801, USAWilliam H. Miller III Department of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USADepartment of Astronomy, University of Illinois at Urbana-Champaign , 1002 W Green Street, Urbana, IL 61801, USADepartment of Astronomy, University of Illinois at Urbana-Champaign , 1002 W Green Street, Urbana, IL 61801, USAWilliam H. Miller III Department of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USA; Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USAWilliam H. Miller III Department of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USA; AURA for ESA, Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USAWilliam H. Miller III Department of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USAShocked POstarburst Galaxies (SPOGs) exhibit both emission lines suggestive of shock-heated gas and poststarburst-like stellar absorption, resulting in a unique subset for galaxy evolution studies. We have observed 77 galaxies that fulfilled the SPOG criteria selection using the DeVeny Spectrograph on the Lowell Discovery Telescope. Our long-slit minor axis spectra detect H α and [O III ] in some SPOGs out to 6 kpc above the galactic plane. We find extraplanar ionized gas in 31 targets of our sample overall. Using their internal and external kinematics, we argue that 22 galaxies host outflows with ionized gas masses ranging from 10 ^2 M _⊙ to 10 ^5 M _⊙ . The rest are likely extended diffuse ionized gas. A positive correlation exists between active galactic nuclei (AGN) luminosity and the extraplanar gas extent, velocity dispersion, and mass—suggesting that the AGN may indeed drive the outflows detected in AGN hosts. The low masses of the extraplanar gas suggest that these outflows are not depleting each galaxy’s gas reserves. The outflows, therefore, are not likely a significant quenching mechanism in these SPOGs.https://doi.org/10.3847/1538-4357/ad900fGalaxy evolutionAGN host galaxiesGalaxy quenchingGalactic windsPost-starburst galaxies |
| spellingShingle | Antoniu Fodor Taylor Tomko Mary Braun Anne M. Medling Thomas M. Johnson Alexander Thompson Victor D. Johnston Matthew Newhouse Yuanze Luo K. Decker French Justin A. Otter Akshat Tripathi Margaret E. Verrico Katherine Alatalo Kate Rowlands Timothy Heckman Shocked POststarburst Galaxy Survey. IV. Outflows in Shocked Poststarburst Galaxies Are Not Responsible for Quenching The Astrophysical Journal Galaxy evolution AGN host galaxies Galaxy quenching Galactic winds Post-starburst galaxies |
| title | Shocked POststarburst Galaxy Survey. IV. Outflows in Shocked Poststarburst Galaxies Are Not Responsible for Quenching |
| title_full | Shocked POststarburst Galaxy Survey. IV. Outflows in Shocked Poststarburst Galaxies Are Not Responsible for Quenching |
| title_fullStr | Shocked POststarburst Galaxy Survey. IV. Outflows in Shocked Poststarburst Galaxies Are Not Responsible for Quenching |
| title_full_unstemmed | Shocked POststarburst Galaxy Survey. IV. Outflows in Shocked Poststarburst Galaxies Are Not Responsible for Quenching |
| title_short | Shocked POststarburst Galaxy Survey. IV. Outflows in Shocked Poststarburst Galaxies Are Not Responsible for Quenching |
| title_sort | shocked poststarburst galaxy survey iv outflows in shocked poststarburst galaxies are not responsible for quenching |
| topic | Galaxy evolution AGN host galaxies Galaxy quenching Galactic winds Post-starburst galaxies |
| url | https://doi.org/10.3847/1538-4357/ad900f |
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