Tailed Radio Galaxies from the TIFR GMRT Sky Survey

Bhukta, Netai; Mondal, Sushanta K.; Pal, Sabyasachi

doi:10.48550/arxiv.2110.05484

Cited by 2 publications

(2 citation statements)

References 34 publications

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“…The 101 radio galaxies identified by Proctor (2006) that we left out of our sample either did not visually resemble bent doubles or were not associated with the SDSS source. While it can be difficult to determine the precise morphology for many of our bent sources, due to resolution limitations, we can say that at least 75% of the bent double sources in our sample are WATs, which is slightly higher than the percentages found by Bhukta et al (2021; 71% WATs) and Pal & Kumari (2021; 65% WATs) and significantly higher than that of Mingo et al (2019;42% WATs).…”

Section: Bent and Unbent Double Selectionmentioning

confidence: 54%

How Does Environment Affect the Morphology of Radio AGN?

Morris¹,

Wilcots²,

Hooper³

et al. 2022

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Galaxies hosting Active Galactic Nuclei (AGN) with bent radio jets are used as tracers of dense environments, such as galaxy groups and clusters. The assumption behind using these jets is that they are bent under ram pressure from a dense, gaseous medium through which the host galaxy moves. However, there are many AGN in groups and clusters with jets that are not bent, which leads us to ask: why are some AGN jets affected so much by their environment while others are seemingly not? We present the results of an environmental study on a sample of 185 AGN with bent jets and 191 AGN with unbent jets in which we characterize their environments by searching for neighboring galaxies using a Friends-of-Friends algorithm. We find that AGN with bent jets are indeed more likely to reside in groups and clusters, while unbent AGN are more likely to exist in singles or pairs. When considering only AGN in groups of three or more galaxies, we find that bent AGN are more likely to exist in halos with more galaxies than unbent AGN. We also find that unbent AGN are more likely than bent AGN to be the brightest group galaxy. Additionally, groups hosting AGN with bent jets have a higher density of galaxies than groups hosting unbent AGN. Curiously, there is a population of AGN with bent jets that are in seemingly less dense regions of space, indicating they may be embedded in a cosmic web filament. Overall, our results indicate that bent doubles are more likely to exist in in larger, denser, and less relaxed environments than unbent doubles, potentially linking a galaxy’s radio morphology to its environment.

show abstract

Section: Bent and Unbent Double Selectionmentioning

confidence: 54%

How Does Environment Affect the Morphology of Radio AGN?

Morris¹,

Wilcots²,

Hooper³

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The 101 radio galaxies identified by Proctor (2006) that we left out of our sample either did not visually resemble bent doubles or were not associated with the SDSS source. While it can be difficult to determine the precise morphology for many of our bent sources due to resolution limitations, we can say that at least 75% of the bent double sources in our sample are WATs, which is slightly higher than Bhukta et al (2021) (71% WATs) and Pal & Kumari (2021) (65% WATs) and significantly higher than Mingo et al (2019) (42% WATs).…”

Section: Bent and Unbent Double Selectionmentioning

confidence: 49%

How does environment affect the morphology of radio AGN?

Morris,

Wilcots,

Hooper

et al. 2022

Preprint

View full text Add to dashboard Cite

Galaxies hosting Active Galactic Nuclei (AGN) with bent radio jets are used as tracers of dense environments, such as galaxy groups and clusters. The assumption behind using these jets is that they are bent under ram pressure from a dense, gaseous medium through which the host galaxy moves. However, there are many AGN in groups and clusters with jets that are not bent, which leads us to ask: why are some AGN jets affected so much by their environment while others are seemingly not? We present the results of an environmental study on a sample of 185 AGN with bent jets and 191 AGN with unbent jets in which we characterize their environments by searching for neighboring galaxies using a Friends-of-Friends algorithm. We find that AGN with bent jets are indeed more likely to reside in groups and clusters, while unbent AGN are more likely to exist in singles or pairs. When considering only AGN in groups of 3 or more galaxies, we find that bent AGN are more likely to exist in halos with more galaxies than unbent AGN. We also find that unbent AGN are more likely than bent AGN to be the brightest group galaxy. Additionally, groups hosting AGN with bent jets have a higher density of galaxies than groups hosting unbent AGN. Curiously, there is a population of AGN with bent jets that are in seemingly less dense regions of space, indicating they may be embedded in a cosmic web filament. Overall, our results indicate that bent doubles are more likely to exist in in larger, denser, and less relaxed environments than unbent doubles, potentially linking a galaxy's radio morphology to its environment.

show abstract

Tailed Radio Galaxies from the TIFR GMRT Sky Survey

Cited by 2 publications

References 34 publications

How Does Environment Affect the Morphology of Radio AGN?

How Does Environment Affect the Morphology of Radio AGN?

How does environment affect the morphology of radio AGN?

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