|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'504'928
Articles rated: 2609
25 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
On the Environments of Giant Radio Galaxies | | Ting-Wen Lan
; J. Xavier Prochaska
; | | Date: |
9 Sep 2020 | | Abstract: | We test the hypothesis that environments play a key role in enabling the
growth of enormous radio structures spanning more than 700 kpc, an extreme
population of radio galaxies called giant radio galaxies (GRGs). To achieve
this, we explore the relationships between the occurrence of GRGs and the
number density of surrounding galaxies as well as the GRG locations towards
large-scale structures by making use of a homogeneous sample of $sim$100 GRGs
detected from the LOFAR Two-metre Sky Survey in combination with (1)
photometric galaxies from the DESI Legacy Imaging Surveys and (2) a large-scale
filament catalog from the Sloan Digital Sky Survey. We probe the distributions
of satellite galaxies around GRGs and the control samples, consisting of
galaxies with optical colors and luminosity matched to the properties of the
GRG host galaxies. Our results show that the properties of satellites around
GRGs are consistent with that around the two control samples. Additionally, the
properties of satellite galaxies depend on neither their relative positions to
the radio jet/lobe structures nor the sizes of GRGs. We also find that the
locations of GRGs and the control samples with respect to the nearby
large-scale structures are consistent with each other. These results
demonstrate that there is no correlation between the GRG properties and their
environments traced by stars, indicating that galaxy environments play little
role on the origins of GRGs. Finally, regarding radio feedback, we show that
the fraction of blue satellites does not correlate with the GRG properties,
suggesting that the radio jets have minimal influence on the nature of their
surrounding galaxies. | | Source: | arXiv, 2009.04482 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER