Host Galaxy Properties and AGN Clustering: Insights from X-ray Observations and Their Impact on Cosmic Evolution

Gutu Mekonen; Adugna Terecha; Anno Kare

doi:doi:10.11648/j.ijass.20241202.11

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Host Galaxy Properties and AGN Clustering: Insights from X-ray Observations and Their Impact on Cosmic Evolution

Gutu Mekonen^*

, Adugna Terecha

, Anno Kare

Published in International Journal of Astrophysics and Space Science (Volume 12, Issue 2)

Received: 15 November 2024 Accepted: 13 December 2024 Published: 27 December 2024

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Abstract

This review examines the connection between X-ray-selected Active Galactic Nuclei (AGN) and their host galaxies, focusing on how X-ray observations provide insights into AGN structure and clustering. AGNs, powered by supermassive black holes, are key drivers of galaxy evolution, and X-ray data play a critical role in studying these energetic phenomena. The unified model of AGNs, which attributes differences between type 1 (unobscured) and type 2 (obscured) AGNs to orientation effects, is discussed. However, variations in clustering between these two types challenge this model, suggesting additional factors influence their evolution. Detecting AGN clusters in the X-ray band remains difficult due to observational biases and limitations, but such studies are vital for understanding how AGNs form and interact within large-scale structures. Host galaxy properties, including luminosity, stellar mass, and star formation rate, are analyzed for their impact on AGN clustering. Research indicates that AGN luminosity is strongly linked to the mass of the dark matter halos surrounding their host galaxies. This relationship may vary depending on the triggering mechanism of the AGN, such as galaxy mergers or internal instabilities. Differences in AGN clustering patterns provide insights into the diverse pathways through which AGNs are activated. AGN feedback, which describes how AGNs influence star formation in their host galaxies, is another key focus. Observations suggest that at higher redshifts, brighter AGNs tend to enhance star formation rates, showing a complex interplay between AGN activity and galaxy growth. By synthesizing recent observational results, this review highlights the central role of AGNs in shaping galaxies and their environments. It provides a deeper understanding of how AGNs interact with their host galaxies and larger cosmic structures, offering valuable insights into the processes driving galaxy evolution over cosmic time.

Published in	International Journal of Astrophysics and Space Science (Volume 12, Issue 2)
DOI	10.11648/j.ijass.20241202.11
Page(s)	37-45
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Active Galactic Nuclei (AGN), Host Galaxy Properties, Star Formation

References

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Mekonen, G., Terecha, A., Kare, A. (2024). Host Galaxy Properties and AGN Clustering: Insights from X-ray Observations and Their Impact on Cosmic Evolution. International Journal of Astrophysics and Space Science, 12(2), 37-45. https://doi.org/10.11648/j.ijass.20241202.11

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ACS Style

Mekonen, G.; Terecha, A.; Kare, A. Host Galaxy Properties and AGN Clustering: Insights from X-ray Observations and Their Impact on Cosmic Evolution. Int. J. Astrophys. Space Sci. 2024, 12(2), 37-45. doi: 10.11648/j.ijass.20241202.11

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AMA Style

Mekonen G, Terecha A, Kare A. Host Galaxy Properties and AGN Clustering: Insights from X-ray Observations and Their Impact on Cosmic Evolution. Int J Astrophys Space Sci. 2024;12(2):37-45. doi: 10.11648/j.ijass.20241202.11

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@article{10.11648/j.ijass.20241202.11,
  author = {Gutu Mekonen and Adugna Terecha and Anno Kare},
  title = {Host Galaxy Properties and AGN Clustering: Insights from X-ray Observations and Their Impact on Cosmic Evolution
},
  journal = {International Journal of Astrophysics and Space Science},
  volume = {12},
  number = {2},
  pages = {37-45},
  doi = {10.11648/j.ijass.20241202.11},
  url = {https://doi.org/10.11648/j.ijass.20241202.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijass.20241202.11},
  abstract = {This review examines the connection between X-ray-selected Active Galactic Nuclei (AGN) and their host galaxies, focusing on how X-ray observations provide insights into AGN structure and clustering. AGNs, powered by supermassive black holes, are key drivers of galaxy evolution, and X-ray data play a critical role in studying these energetic phenomena. The unified model of AGNs, which attributes differences between type 1 (unobscured) and type 2 (obscured) AGNs to orientation effects, is discussed. However, variations in clustering between these two types challenge this model, suggesting additional factors influence their evolution. Detecting AGN clusters in the X-ray band remains difficult due to observational biases and limitations, but such studies are vital for understanding how AGNs form and interact within large-scale structures. Host galaxy properties, including luminosity, stellar mass, and star formation rate, are analyzed for their impact on AGN clustering. Research indicates that AGN luminosity is strongly linked to the mass of the dark matter halos surrounding their host galaxies. This relationship may vary depending on the triggering mechanism of the AGN, such as galaxy mergers or internal instabilities. Differences in AGN clustering patterns provide insights into the diverse pathways through which AGNs are activated. AGN feedback, which describes how AGNs influence star formation in their host galaxies, is another key focus. Observations suggest that at higher redshifts, brighter AGNs tend to enhance star formation rates, showing a complex interplay between AGN activity and galaxy growth. By synthesizing recent observational results, this review highlights the central role of AGNs in shaping galaxies and their environments. It provides a deeper understanding of how AGNs interact with their host galaxies and larger cosmic structures, offering valuable insights into the processes driving galaxy evolution over cosmic time.
},
 year = {2024}
}

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TY  - JOUR
T1  - Host Galaxy Properties and AGN Clustering: Insights from X-ray Observations and Their Impact on Cosmic Evolution

AU  - Gutu Mekonen
AU  - Adugna Terecha
AU  - Anno Kare
Y1  - 2024/12/27
PY  - 2024
N1  - https://doi.org/10.11648/j.ijass.20241202.11
DO  - 10.11648/j.ijass.20241202.11
T2  - International Journal of Astrophysics and Space Science
JF  - International Journal of Astrophysics and Space Science
JO  - International Journal of Astrophysics and Space Science
SP  - 37
EP  - 45
PB  - Science Publishing Group
SN  - 2376-7022
UR  - https://doi.org/10.11648/j.ijass.20241202.11
AB  - This review examines the connection between X-ray-selected Active Galactic Nuclei (AGN) and their host galaxies, focusing on how X-ray observations provide insights into AGN structure and clustering. AGNs, powered by supermassive black holes, are key drivers of galaxy evolution, and X-ray data play a critical role in studying these energetic phenomena. The unified model of AGNs, which attributes differences between type 1 (unobscured) and type 2 (obscured) AGNs to orientation effects, is discussed. However, variations in clustering between these two types challenge this model, suggesting additional factors influence their evolution. Detecting AGN clusters in the X-ray band remains difficult due to observational biases and limitations, but such studies are vital for understanding how AGNs form and interact within large-scale structures. Host galaxy properties, including luminosity, stellar mass, and star formation rate, are analyzed for their impact on AGN clustering. Research indicates that AGN luminosity is strongly linked to the mass of the dark matter halos surrounding their host galaxies. This relationship may vary depending on the triggering mechanism of the AGN, such as galaxy mergers or internal instabilities. Differences in AGN clustering patterns provide insights into the diverse pathways through which AGNs are activated. AGN feedback, which describes how AGNs influence star formation in their host galaxies, is another key focus. Observations suggest that at higher redshifts, brighter AGNs tend to enhance star formation rates, showing a complex interplay between AGN activity and galaxy growth. By synthesizing recent observational results, this review highlights the central role of AGNs in shaping galaxies and their environments. It provides a deeper understanding of how AGNs interact with their host galaxies and larger cosmic structures, offering valuable insights into the processes driving galaxy evolution over cosmic time.

VL  - 12
IS  - 2
ER  -

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Author Information

Gutu Mekonen

Department of Physics, Mizan Tepi University, Tepi, Ethiopia

Contact Email

http://orcid.org/0000-0002-1359-3226
Adugna Terecha

Department of Physics, Gambela University, Gambela, Ethiopia

http://orcid.org/0009-0009-3350-3425
Anno Kare

Department of Applied Physics, Adama Science and Technology University, Adama, Ethiopia

http://orcid.org/0000-0002-8578-3299

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Mekonen, G., Terecha, A., Kare, A. (2024). Host Galaxy Properties and AGN Clustering: Insights from X-ray Observations and Their Impact on Cosmic Evolution. International Journal of Astrophysics and Space Science, 12(2), 37-45. https://doi.org/10.11648/j.ijass.20241202.11

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ACS Style

Mekonen, G.; Terecha, A.; Kare, A. Host Galaxy Properties and AGN Clustering: Insights from X-ray Observations and Their Impact on Cosmic Evolution. Int. J. Astrophys. Space Sci. 2024, 12(2), 37-45. doi: 10.11648/j.ijass.20241202.11

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AMA Style

Mekonen G, Terecha A, Kare A. Host Galaxy Properties and AGN Clustering: Insights from X-ray Observations and Their Impact on Cosmic Evolution. Int J Astrophys Space Sci. 2024;12(2):37-45. doi: 10.11648/j.ijass.20241202.11

Copy | Download

@article{10.11648/j.ijass.20241202.11,
  author = {Gutu Mekonen and Adugna Terecha and Anno Kare},
  title = {Host Galaxy Properties and AGN Clustering: Insights from X-ray Observations and Their Impact on Cosmic Evolution
},
  journal = {International Journal of Astrophysics and Space Science},
  volume = {12},
  number = {2},
  pages = {37-45},
  doi = {10.11648/j.ijass.20241202.11},
  url = {https://doi.org/10.11648/j.ijass.20241202.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijass.20241202.11},
  abstract = {This review examines the connection between X-ray-selected Active Galactic Nuclei (AGN) and their host galaxies, focusing on how X-ray observations provide insights into AGN structure and clustering. AGNs, powered by supermassive black holes, are key drivers of galaxy evolution, and X-ray data play a critical role in studying these energetic phenomena. The unified model of AGNs, which attributes differences between type 1 (unobscured) and type 2 (obscured) AGNs to orientation effects, is discussed. However, variations in clustering between these two types challenge this model, suggesting additional factors influence their evolution. Detecting AGN clusters in the X-ray band remains difficult due to observational biases and limitations, but such studies are vital for understanding how AGNs form and interact within large-scale structures. Host galaxy properties, including luminosity, stellar mass, and star formation rate, are analyzed for their impact on AGN clustering. Research indicates that AGN luminosity is strongly linked to the mass of the dark matter halos surrounding their host galaxies. This relationship may vary depending on the triggering mechanism of the AGN, such as galaxy mergers or internal instabilities. Differences in AGN clustering patterns provide insights into the diverse pathways through which AGNs are activated. AGN feedback, which describes how AGNs influence star formation in their host galaxies, is another key focus. Observations suggest that at higher redshifts, brighter AGNs tend to enhance star formation rates, showing a complex interplay between AGN activity and galaxy growth. By synthesizing recent observational results, this review highlights the central role of AGNs in shaping galaxies and their environments. It provides a deeper understanding of how AGNs interact with their host galaxies and larger cosmic structures, offering valuable insights into the processes driving galaxy evolution over cosmic time.
},
 year = {2024}
}

Copy | Download

TY  - JOUR
T1  - Host Galaxy Properties and AGN Clustering: Insights from X-ray Observations and Their Impact on Cosmic Evolution

AU  - Gutu Mekonen
AU  - Adugna Terecha
AU  - Anno Kare
Y1  - 2024/12/27
PY  - 2024
N1  - https://doi.org/10.11648/j.ijass.20241202.11
DO  - 10.11648/j.ijass.20241202.11
T2  - International Journal of Astrophysics and Space Science
JF  - International Journal of Astrophysics and Space Science
JO  - International Journal of Astrophysics and Space Science
SP  - 37
EP  - 45
PB  - Science Publishing Group
SN  - 2376-7022
UR  - https://doi.org/10.11648/j.ijass.20241202.11
AB  - This review examines the connection between X-ray-selected Active Galactic Nuclei (AGN) and their host galaxies, focusing on how X-ray observations provide insights into AGN structure and clustering. AGNs, powered by supermassive black holes, are key drivers of galaxy evolution, and X-ray data play a critical role in studying these energetic phenomena. The unified model of AGNs, which attributes differences between type 1 (unobscured) and type 2 (obscured) AGNs to orientation effects, is discussed. However, variations in clustering between these two types challenge this model, suggesting additional factors influence their evolution. Detecting AGN clusters in the X-ray band remains difficult due to observational biases and limitations, but such studies are vital for understanding how AGNs form and interact within large-scale structures. Host galaxy properties, including luminosity, stellar mass, and star formation rate, are analyzed for their impact on AGN clustering. Research indicates that AGN luminosity is strongly linked to the mass of the dark matter halos surrounding their host galaxies. This relationship may vary depending on the triggering mechanism of the AGN, such as galaxy mergers or internal instabilities. Differences in AGN clustering patterns provide insights into the diverse pathways through which AGNs are activated. AGN feedback, which describes how AGNs influence star formation in their host galaxies, is another key focus. Observations suggest that at higher redshifts, brighter AGNs tend to enhance star formation rates, showing a complex interplay between AGN activity and galaxy growth. By synthesizing recent observational results, this review highlights the central role of AGNs in shaping galaxies and their environments. It provides a deeper understanding of how AGNs interact with their host galaxies and larger cosmic structures, offering valuable insights into the processes driving galaxy evolution over cosmic time.

VL  - 12
IS  - 2
ER  -

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