The University of Southampton
University of Southampton Institutional Repository
Warning ePrints Soton is experiencing an issue with some file downloads not being available. We are working hard to fix this. Please bear with us.

Probing restarting activity in hard X-ray selected giant radio galaxies

Probing restarting activity in hard X-ray selected giant radio galaxies
Probing restarting activity in hard X-ray selected giant radio galaxies
With their sizes larger than 0.7 Mpc, Giant Radio Galaxies (GRGs) are the largest individual objects in the Universe. To date, the reason why they reach such enormous extensions is still unclear. One of the proposed scenarios suggests that they are the result of multiple episodes of jet activity. Cross-correlating the INTEGRAL+Swift AGN population with radio catalogues (NVSS, FIRST, SUMSS), we found that 22% of the sources are GRG (a factor four higher than those selected from radio catalogues). Remarkably, all of the sources in the sample show signs of restarting radio activity. The X-ray properties are consistent with this scenario, the sources being in a high-accretion, high-luminosity state with respect to the previous activity responsible for the radio lobes.
X-rays: galaxies, galaxies: active, galaxies: evolution, galaxies: jets, radio continuum: galaxies
1743-9213
66-69
Bruni, G.
f66e1af6-b2ae-4971-87f6-9b56366fb02a
Ursini, F.
d5219c77-7a2a-46b4-b2cc-368574228990
Panessa, F.
c1b84faf-1e08-4c5a-90e3-a78caa89a057
Bassani, L.
389f7efa-9b87-400d-bac4-2dd1440ca620
Bazzano, A.
8eef0c6e-1a5f-4bcd-a034-9a5c3b29104d
Bird, Antony
045ee141-4720-46fd-a412-5aa848a91b32
Chiaraluce, E.
c91cb929-eca6-425a-9e2b-6c307a458a6e
Dallacasa, D.
58d2421d-ab48-4047-8ae2-c6eff0b211cc
Fiocchi, M.
e7f58356-f98e-493e-942a-f462a4fc45ba
Giroletti, M.
e83eacbe-2151-4572-a90b-997511eb950c
Hernandez-Garcıa, L.
235d7d1d-93bb-4f73-a494-7ed03cbc335f
Malizia, A.
e5dfde03-049c-4fb5-b226-f2ab5a51e561
Molina, M.
c9b3b544-b256-4367-a96c-9cb88c0a42f0
Saripall, L.
6e0e37af-1954-4c5a-9fbb-6b44ac2739e9
Ubertini, P.
3b5a8386-2ea4-402e-9d8b-d3cf8e0f4b93
Venturi, T. Venturi
797d433e-d40f-4dfe-9526-52618b10b87a
Bruni, G.
f66e1af6-b2ae-4971-87f6-9b56366fb02a
Ursini, F.
d5219c77-7a2a-46b4-b2cc-368574228990
Panessa, F.
c1b84faf-1e08-4c5a-90e3-a78caa89a057
Bassani, L.
389f7efa-9b87-400d-bac4-2dd1440ca620
Bazzano, A.
8eef0c6e-1a5f-4bcd-a034-9a5c3b29104d
Bird, Antony
045ee141-4720-46fd-a412-5aa848a91b32
Chiaraluce, E.
c91cb929-eca6-425a-9e2b-6c307a458a6e
Dallacasa, D.
58d2421d-ab48-4047-8ae2-c6eff0b211cc
Fiocchi, M.
e7f58356-f98e-493e-942a-f462a4fc45ba
Giroletti, M.
e83eacbe-2151-4572-a90b-997511eb950c
Hernandez-Garcıa, L.
235d7d1d-93bb-4f73-a494-7ed03cbc335f
Malizia, A.
e5dfde03-049c-4fb5-b226-f2ab5a51e561
Molina, M.
c9b3b544-b256-4367-a96c-9cb88c0a42f0
Saripall, L.
6e0e37af-1954-4c5a-9fbb-6b44ac2739e9
Ubertini, P.
3b5a8386-2ea4-402e-9d8b-d3cf8e0f4b93
Venturi, T. Venturi
797d433e-d40f-4dfe-9526-52618b10b87a

Bruni, G., Ursini, F., Panessa, F., Bassani, L., Bazzano, A., Bird, Antony, Chiaraluce, E., Dallacasa, D., Fiocchi, M., Giroletti, M., Hernandez-Garcıa, L., Malizia, A., Molina, M., Saripall, L., Ubertini, P. and Venturi, T. Venturi (2020) Probing restarting activity in hard X-ray selected giant radio galaxies. Proceedings of the International Astronomical Union, 14 (A30), 66-69. (doi:10.1017/S1743921319003478).

Record type: Article

Abstract

With their sizes larger than 0.7 Mpc, Giant Radio Galaxies (GRGs) are the largest individual objects in the Universe. To date, the reason why they reach such enormous extensions is still unclear. One of the proposed scenarios suggests that they are the result of multiple episodes of jet activity. Cross-correlating the INTEGRAL+Swift AGN population with radio catalogues (NVSS, FIRST, SUMSS), we found that 22% of the sources are GRG (a factor four higher than those selected from radio catalogues). Remarkably, all of the sources in the sample show signs of restarting radio activity. The X-ray properties are consistent with this scenario, the sources being in a high-accretion, high-luminosity state with respect to the previous activity responsible for the radio lobes.

Text
Probing restarting activity in hard X-ray selected giant radio galaxies - Accepted Manuscript
Download (584kB)

More information

Accepted/In Press date: 31 January 2019
e-pub ahead of print date: 3 March 2020
Additional Information: arXiv is AM
Keywords: X-rays: galaxies, galaxies: active, galaxies: evolution, galaxies: jets, radio continuum: galaxies

Identifiers

Local EPrints ID: 439245
URI: http://eprints.soton.ac.uk/id/eprint/439245
ISSN: 1743-9213
PURE UUID: 9c20022e-96a0-45dc-b3ff-688730fbf157
ORCID for Antony Bird: ORCID iD orcid.org/0000-0002-6888-8937

Catalogue record

Date deposited: 07 Apr 2020 16:31
Last modified: 26 Nov 2021 05:37

Export record

Altmetrics

Contributors

Author: G. Bruni
Author: F. Ursini
Author: F. Panessa
Author: L. Bassani
Author: A. Bazzano
Author: Antony Bird ORCID iD
Author: E. Chiaraluce
Author: D. Dallacasa
Author: M. Fiocchi
Author: M. Giroletti
Author: L. Hernandez-Garcıa
Author: A. Malizia
Author: M. Molina
Author: L. Saripall
Author: P. Ubertini
Author: T. Venturi Venturi

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×