The Impact of Positive AGN Feedback on the Properties of Galaxies in a Semianalytic Model of Galaxy Formation
We introduce the state-of-the-art semianalytic model Formation and Evolution of GAlaxies (FEGA), which incorporates updated prescriptions for key physical processes in galaxy formation. Notably, FEGA features an unprecedented semianalytic modeling of positive active galactic nucleus (AGN) feedback....
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2024-01-01
|
| Series: | The Astrophysical Journal Supplement Series |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-4365/ad70ac |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849336096347914240 |
|---|---|
| author | Emanuele Contini Sukyoung K. Yi Seyoung Jeon Jinsu Rhee |
| author_facet | Emanuele Contini Sukyoung K. Yi Seyoung Jeon Jinsu Rhee |
| author_sort | Emanuele Contini |
| collection | DOAJ |
| description | We introduce the state-of-the-art semianalytic model Formation and Evolution of GAlaxies (FEGA), which incorporates updated prescriptions for key physical processes in galaxy formation. Notably, FEGA features an unprecedented semianalytic modeling of positive active galactic nucleus (AGN) feedback. The model combines the latest prescriptions for gas infall and cooling, a revised star formation recipe that incorporates the extended Kennicutt–Schmidt relation, disk instability, updated supernova feedback, reincorporation of ejected gas, hot gas stripping from satellite galaxies, and the formation of diffuse light. A novel description of AGN feedback is introduced, describing the positive mode as a burst of star formation from a cooling gas fraction. FEGA is rigorously calibrated using a Markov Chain Monte Carlo procedure to match the evolution of the stellar mass function from high redshift to the present. Subsequently, the model is tested against several observed and predicted scaling relations, including the star formation rate (SFR)–mass, black hole–bulge and stellar mass, stellar-to-halo mass, and red fraction–mass relations. Additionally, we test FEGA against other galaxy properties, such as the distribution of specific SFRs, stellar metallicity, and morphology. Our results demonstrate that the inclusion of positive AGN feedback can coexist with its negative counterpart without drastic alterations to other prescriptions. Importantly, this inclusion improves the ability of the model to describe the primary scaling relations observed in galaxies. |
| format | Article |
| id | doaj-art-fd142a59e3ea4d3c84e3ce72d56a7c8e |
| institution | Kabale University |
| issn | 0067-0049 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal Supplement Series |
| spelling | doaj-art-fd142a59e3ea4d3c84e3ce72d56a7c8e2025-08-20T03:45:04ZengIOP PublishingThe Astrophysical Journal Supplement Series0067-00492024-01-0127424110.3847/1538-4365/ad70acThe Impact of Positive AGN Feedback on the Properties of Galaxies in a Semianalytic Model of Galaxy FormationEmanuele Contini0https://orcid.org/0000-0002-2873-8598Sukyoung K. Yi1https://orcid.org/0000-0002-4556-2619Seyoung Jeon2Jinsu Rhee3https://orcid.org/0000-0002-0184-9589Department of Astronomy and Yonsei University Observatory , Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea ; emanuele.contini82@gmail.com, yi@yonsei.ac.krDepartment of Astronomy and Yonsei University Observatory , Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea ; emanuele.contini82@gmail.com, yi@yonsei.ac.krDepartment of Astronomy and Yonsei University Observatory , Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea ; emanuele.contini82@gmail.com, yi@yonsei.ac.krDepartment of Astronomy and Yonsei University Observatory , Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea ; emanuele.contini82@gmail.com, yi@yonsei.ac.kr; Korea Astronomy and Space Science Institute , 776, Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of KoreaWe introduce the state-of-the-art semianalytic model Formation and Evolution of GAlaxies (FEGA), which incorporates updated prescriptions for key physical processes in galaxy formation. Notably, FEGA features an unprecedented semianalytic modeling of positive active galactic nucleus (AGN) feedback. The model combines the latest prescriptions for gas infall and cooling, a revised star formation recipe that incorporates the extended Kennicutt–Schmidt relation, disk instability, updated supernova feedback, reincorporation of ejected gas, hot gas stripping from satellite galaxies, and the formation of diffuse light. A novel description of AGN feedback is introduced, describing the positive mode as a burst of star formation from a cooling gas fraction. FEGA is rigorously calibrated using a Markov Chain Monte Carlo procedure to match the evolution of the stellar mass function from high redshift to the present. Subsequently, the model is tested against several observed and predicted scaling relations, including the star formation rate (SFR)–mass, black hole–bulge and stellar mass, stellar-to-halo mass, and red fraction–mass relations. Additionally, we test FEGA against other galaxy properties, such as the distribution of specific SFRs, stellar metallicity, and morphology. Our results demonstrate that the inclusion of positive AGN feedback can coexist with its negative counterpart without drastic alterations to other prescriptions. Importantly, this inclusion improves the ability of the model to describe the primary scaling relations observed in galaxies.https://doi.org/10.3847/1538-4365/ad70acActive galactic nucleiGalaxy formationGalaxy evolution |
| spellingShingle | Emanuele Contini Sukyoung K. Yi Seyoung Jeon Jinsu Rhee The Impact of Positive AGN Feedback on the Properties of Galaxies in a Semianalytic Model of Galaxy Formation The Astrophysical Journal Supplement Series Active galactic nuclei Galaxy formation Galaxy evolution |
| title | The Impact of Positive AGN Feedback on the Properties of Galaxies in a Semianalytic Model of Galaxy Formation |
| title_full | The Impact of Positive AGN Feedback on the Properties of Galaxies in a Semianalytic Model of Galaxy Formation |
| title_fullStr | The Impact of Positive AGN Feedback on the Properties of Galaxies in a Semianalytic Model of Galaxy Formation |
| title_full_unstemmed | The Impact of Positive AGN Feedback on the Properties of Galaxies in a Semianalytic Model of Galaxy Formation |
| title_short | The Impact of Positive AGN Feedback on the Properties of Galaxies in a Semianalytic Model of Galaxy Formation |
| title_sort | impact of positive agn feedback on the properties of galaxies in a semianalytic model of galaxy formation |
| topic | Active galactic nuclei Galaxy formation Galaxy evolution |
| url | https://doi.org/10.3847/1538-4365/ad70ac |
| work_keys_str_mv | AT emanuelecontini theimpactofpositiveagnfeedbackonthepropertiesofgalaxiesinasemianalyticmodelofgalaxyformation AT sukyoungkyi theimpactofpositiveagnfeedbackonthepropertiesofgalaxiesinasemianalyticmodelofgalaxyformation AT seyoungjeon theimpactofpositiveagnfeedbackonthepropertiesofgalaxiesinasemianalyticmodelofgalaxyformation AT jinsurhee theimpactofpositiveagnfeedbackonthepropertiesofgalaxiesinasemianalyticmodelofgalaxyformation AT emanuelecontini impactofpositiveagnfeedbackonthepropertiesofgalaxiesinasemianalyticmodelofgalaxyformation AT sukyoungkyi impactofpositiveagnfeedbackonthepropertiesofgalaxiesinasemianalyticmodelofgalaxyformation AT seyoungjeon impactofpositiveagnfeedbackonthepropertiesofgalaxiesinasemianalyticmodelofgalaxyformation AT jinsurhee impactofpositiveagnfeedbackonthepropertiesofgalaxiesinasemianalyticmodelofgalaxyformation |