Central versus Global Quenching Traced by the APEX-CALIFA Survey
The quest for the mechanisms that halt star formation in galaxies is essential to understand their evolution. Here, we use the APEX-CALIFA survey, which includes 560 galaxies (0.005 < z < 0.08), so far the largest sample of galaxies in the nearby universe with both Integral Field Spectroscopic...
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2024-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/ad85d1 |
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| author | J. K. Barrera-Ballesteros I. Cruz-González D. Colombo S. F. Sánchez R. C. Levy V. Villanueva T. Wong A. Bolatto D. Alonso Hernández |
| author_facet | J. K. Barrera-Ballesteros I. Cruz-González D. Colombo S. F. Sánchez R. C. Levy V. Villanueva T. Wong A. Bolatto D. Alonso Hernández |
| author_sort | J. K. Barrera-Ballesteros |
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| description | The quest for the mechanisms that halt star formation in galaxies is essential to understand their evolution. Here, we use the APEX-CALIFA survey, which includes 560 galaxies (0.005 < z < 0.08), so far the largest sample of galaxies in the nearby universe with both Integral Field Spectroscopic, Calar Alto Legacy Integral Field Area (CALIFA) and single-aperture millimeter observations, as well as the extended CALIFA sample (823 targets). Using these observations we derive (i) the deficit or excess of star formation for a given stellar mass with respect to the star formation main sequence (ΔSFMS), (ii) the gas fraction, and (iii) the star formation efficiency (SFE) for two apertures (central and global apertures using the APEX-CALIFA and CALIFA samples, respectively). We confirm the so-called “inside-out” quenching, that is, for quiescent galaxies the central values of ΔSFMS are usually smaller than those values derived from global measurements. However, for a given ΔSFMS we find that for retired galaxies the central gas fraction is larger in comparison to global measurements. Furthermore, the central SFE is significantly smaller in comparison to global counterparts. In general, in comparison to the global measurements, the deficit of star formation at the center of retired galaxies is primarily caused by the inefficiency to form new stars rather than the lack of molecular gas. We suggest that even though at the center of retired galaxies the gas fraction is larger, morphological structures could prevent that the molecular gas is transformed into new stars. Even more so in the outskirts of some retired galaxies with small gas fractions, star formation activity is still occurring. |
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| issn | 1538-4357 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
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| series | The Astrophysical Journal |
| spelling | doaj-art-47c3fcef36aa4aaaabe74c300ffc8bd12025-08-20T02:32:30ZengIOP PublishingThe Astrophysical Journal1538-43572024-01-0197812310.3847/1538-4357/ad85d1Central versus Global Quenching Traced by the APEX-CALIFA SurveyJ. K. Barrera-Ballesteros0https://orcid.org/0000-0003-2405-7258I. Cruz-González1https://orcid.org/0000-0002-2653-1120D. Colombo2S. F. Sánchez3R. C. Levy4https://orcid.org/0000-0003-2508-2586V. Villanueva5T. Wong6A. Bolatto7D. Alonso Hernández8Universidad Nacional Autónoma de México , Instituto de Astronomía, AP 70-264, CDMX 04510, MexicoUniversidad Nacional Autónoma de México , Instituto de Astronomía, AP 70-264, CDMX 04510, MexicoMax-Planck-Institut für Radioastronomie , Auf dem Hügel 69, 53121 Bonn, GermanyUniversidad Nacional Autónoma de México , Instituto de Astronomía, AP 70-264, CDMX 04510, MexicoSteward Observatory, University of Arizona , Tucson, AZ 85721, USADepartment of Astronomy, University of Maryland , College Park, MD 20742, USADepartment of Astronomy, University of Illinois , Urbana, IL 61801, USADepartment of Astronomy, University of Maryland , College Park, MD 20742, USAUniversidad Nacional Autónoma de México , Instituto de Astronomía, AP 70-264, CDMX 04510, MexicoThe quest for the mechanisms that halt star formation in galaxies is essential to understand their evolution. Here, we use the APEX-CALIFA survey, which includes 560 galaxies (0.005 < z < 0.08), so far the largest sample of galaxies in the nearby universe with both Integral Field Spectroscopic, Calar Alto Legacy Integral Field Area (CALIFA) and single-aperture millimeter observations, as well as the extended CALIFA sample (823 targets). Using these observations we derive (i) the deficit or excess of star formation for a given stellar mass with respect to the star formation main sequence (ΔSFMS), (ii) the gas fraction, and (iii) the star formation efficiency (SFE) for two apertures (central and global apertures using the APEX-CALIFA and CALIFA samples, respectively). We confirm the so-called “inside-out” quenching, that is, for quiescent galaxies the central values of ΔSFMS are usually smaller than those values derived from global measurements. However, for a given ΔSFMS we find that for retired galaxies the central gas fraction is larger in comparison to global measurements. Furthermore, the central SFE is significantly smaller in comparison to global counterparts. In general, in comparison to the global measurements, the deficit of star formation at the center of retired galaxies is primarily caused by the inefficiency to form new stars rather than the lack of molecular gas. We suggest that even though at the center of retired galaxies the gas fraction is larger, morphological structures could prevent that the molecular gas is transformed into new stars. Even more so in the outskirts of some retired galaxies with small gas fractions, star formation activity is still occurring.https://doi.org/10.3847/1538-4357/ad85d1Red sequence galaxiesGalaxy quenchingStar formationMolecular gasSurveys |
| spellingShingle | J. K. Barrera-Ballesteros I. Cruz-González D. Colombo S. F. Sánchez R. C. Levy V. Villanueva T. Wong A. Bolatto D. Alonso Hernández Central versus Global Quenching Traced by the APEX-CALIFA Survey The Astrophysical Journal Red sequence galaxies Galaxy quenching Star formation Molecular gas Surveys |
| title | Central versus Global Quenching Traced by the APEX-CALIFA Survey |
| title_full | Central versus Global Quenching Traced by the APEX-CALIFA Survey |
| title_fullStr | Central versus Global Quenching Traced by the APEX-CALIFA Survey |
| title_full_unstemmed | Central versus Global Quenching Traced by the APEX-CALIFA Survey |
| title_short | Central versus Global Quenching Traced by the APEX-CALIFA Survey |
| title_sort | central versus global quenching traced by the apex califa survey |
| topic | Red sequence galaxies Galaxy quenching Star formation Molecular gas Surveys |
| url | https://doi.org/10.3847/1538-4357/ad85d1 |
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