The Role of Stellar Mass and Star Formation in Shaping X-ray Emission of Radio-Loud and Radio-Quiet AGN
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| Format: | Preprint |
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2025
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| _version_ | 1866914015131729920 |
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| author | Shehata, SH. M. Shaban, F. Samir, R. M. |
| author_facet | Shehata, SH. M. Shaban, F. Samir, R. M. |
| contents | Galaxy evolution and extragalactic astronomy research depend on an understanding of the interactions between active galactic nuclei (AGN) and their host galaxies. We investigate the relationships between X-ray luminosity (Lx), star formation rate (SFR), and stellar mass (M) in distinct samples of radio-loud (RL) and radio-quiet (RQ) AGN. Using data from 4XMM-DR11, SDSS-DR16, and the DESI AGN Host Galaxies VAC, we examine how these key properties correlate within each AGN population. Our analysis reveals different behaviors: RL-AGN show a strong, statistically significant Lx-SFR correlation but no significant link with M, suggesting that accretion and star formation are coupled, possibly independent of host mass. In contrast, RQ-AGN display moderate, significant positive correlations across all parameters, consistent with joint growth driven by a shared cold gas supply.These results suggest that radio-loud AGN might slow down star formation in their galaxies, while radio-quiet AGN seem to grow together with it. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2509_00612 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The Role of Stellar Mass and Star Formation in Shaping X-ray Emission of Radio-Loud and Radio-Quiet AGN Shehata, SH. M. Shaban, F. Samir, R. M. Astrophysics of Galaxies High Energy Astrophysical Phenomena 14J60 (Primary) 14F05, 14J26 (Secondary) F.2.2; I.2.7 Galaxy evolution and extragalactic astronomy research depend on an understanding of the interactions between active galactic nuclei (AGN) and their host galaxies. We investigate the relationships between X-ray luminosity (Lx), star formation rate (SFR), and stellar mass (M) in distinct samples of radio-loud (RL) and radio-quiet (RQ) AGN. Using data from 4XMM-DR11, SDSS-DR16, and the DESI AGN Host Galaxies VAC, we examine how these key properties correlate within each AGN population. Our analysis reveals different behaviors: RL-AGN show a strong, statistically significant Lx-SFR correlation but no significant link with M, suggesting that accretion and star formation are coupled, possibly independent of host mass. In contrast, RQ-AGN display moderate, significant positive correlations across all parameters, consistent with joint growth driven by a shared cold gas supply.These results suggest that radio-loud AGN might slow down star formation in their galaxies, while radio-quiet AGN seem to grow together with it. |
| title | The Role of Stellar Mass and Star Formation in Shaping X-ray Emission of Radio-Loud and Radio-Quiet AGN |
| topic | Astrophysics of Galaxies High Energy Astrophysical Phenomena 14J60 (Primary) 14F05, 14J26 (Secondary) F.2.2; I.2.7 |
| url | https://arxiv.org/abs/2509.00612 |