Results 61 to 70 of about 183 (111)

A Simulation Study of Low-power Relativistic Jets: Flow Dynamics and Radio Morphology of FR-I Jets

The Astrophysical Journal
Radio galaxies are classified into two primary categories based on their morphology: center-brightened FR-I and edge-brightened FR-II. It is believed that the jet power and interactions with the ambient medium govern the deceleration and decollimation of
Ayan Bhattacharjee, Jeongbhin Seo, Dongsu Ryu, Hyesung Kang   +3 more
doaj   +1 more source

Jets in the Fanaroff-Riley class I radio galaxies PKS B1234−723, MRC 1452−517 and PKS B2148−555 [PDF]

Monthly Notices of the Royal Astronomical Society, 2002
ABSTRA C T We present radio observations made with the Australia Telescope Compact Array to study the jets and lobes of three Fanaroff‐ Riley class I (FR I) radio galaxies: PKS B12342723, 14522517 and B21482555. The total intensity and polarization radio images of the FR I jets are used to determine jet brightness and width variations, magnetic field ...
Ben D. Lloyd, Paul A. Jones
openaire   +1 more source

Identification of Large-scale (>100 kpc) Radio Jets in Narrow-line Seyfert 1 Galaxies

The Astrophysical Journal
Powerful, large-scale relativistic jets are usually associated with massive, old elliptical galaxies. This paradigm has recently been challenged by the identification of narrow-line Seyfert 1 (NLSy1) galaxies, thought to be young active galactic nuclei ...
S. Umayal, Vaidehi S. Paliya, D. J. Saikia, C. S. Stalin, S. Muneer, Maheswar Gopinathan   +5 more
doaj   +1 more source

Model Spectrum of Ultrahigh-energy Cosmic Rays Accelerated in FR-I Radio Galaxy Jets

The Astrophysical Journal
Nearby radio galaxies (RGs) of Fanaroff–Riley Class I (FR-I) are considered possible sites for the production of observed ultrahigh-energy cosmic rays (UHECRs). Among those, some exhibit blazar-like inner jets, while others display plume-like structures.
Jeongbhin Seo, Dongsu Ryu, Hyesung Kang
doaj   +1 more source

Hybrid Morphology Radio Sources from the MeerKAT Absorption Line Survey (MALS): Radio, Mid-infrared, and Environmental Characteristics

The Astrophysical Journal
Hybrid morphology radio sources (HyMoRSs) are a rare subclass of radio galaxies that display a Fanaroff–Riley type I (FR I) morphology on one side of the central supermassive black hole and a type II (FR II) morphology on the other.
Souvik Manik, Shobha Kumari, Netai Bhukta, Sabyasachi Pal, Sushanta K. Mondal   +4 more
doaj   +1 more source

Energy Spectrum and Mass Composition of Ultra-high-energy Cosmic Rays Originating from Relativistic Jets of Nearby Radio Galaxies

The Astrophysical Journal
Relativistic jets of radio galaxies (RGs) are possible sources of ultra-high-energy cosmic rays (UHECRs). Recent studies combining relativistic hydrodynamic simulations with Monte Carlo particle transport have demonstrated that UHECRs can be accelerated ...
Jeongbhin Seo, Dongsu Ryu, Hyesung Kang
doaj   +1 more source

Discovery of Giant Radio Sources from TGSS Alternative Data Release 1: Radio, Optical, and Infrared Properties

The Astrophysical Journal Supplement Series
Giant radio sources (GRSs) are the single largest astrophysical objects known in the Universe that have grown to megaparsec scales (≥0.7 Mpc). GRSs are much rarer compared with normal-sized radio galaxies.
Netai Bhukta, Souvik Manik, Sabyasachi Pal, Sushanta K. Mondal   +3 more
doaj   +1 more source

Powerful Outflows of Compact Radio Galaxies

The Astrophysical Journal
Gigahertz peaked spectrum (GPS) and compact steep spectrum (CSS) sources are compact radio galaxies (RGs), with jets extending up to 20 kpc and ages
Bárbara L. Miranda Marques, Alberto Rodríguez-Ardila, Marcos A. Fonseca-Faria, Swayamtrupta Panda   +3 more
doaj   +1 more source

FIRST radio galaxy data set containing curated labels of classes FRI, FRII, compact and bent. [PDF]

Data Brief, 2023
Griese F, Kummer J, Connor PLS, Brüggen M, Rustige L.   +4 more
europepmc   +1 more source

Radio Morphology of Gamma-Ray Sources: Double-lobed Radio Sources

The Astrophysical Journal
The extragalactic γ -ray sky is dominated by relativistic jets aligned to the observer’s line of sight, i.e., blazars. A few of their misaligned counterparts, e.g., radio galaxies, are also detected with the Fermi-Large Area Telescope (LAT), albeit in a ...
Vaidehi S. Paliya, D. J. Saikia, Alberto Domínguez, C. S. Stalin   +3 more
doaj   +1 more source