Results 31 to 40 of about 977,708 (130)

PG 1004+130: Hybrid Morphology Source or a Restarted FRII? A uGMRT Polarimetric Investigation

The Astrophysical Journal, 2023
We present the polarization image of the hybrid morphology and broad absorption line quasar PG 1004+130 at 694 MHz obtained with the upgraded Giant Metrewave Radio Telescope. We detect linear polarization in this source’s core, jets, and lobes.
Salmoli Ghosh, P. Kharb, J. Baghel, S. Silpa   +3 more
doaj   +1 more source

Structure of the magnetoionic medium around the Fanaroff-Riley Class I radio galaxy 3C 449 [PDF]

Astronomy and Astrophysics, 2010
Aims. The goal of this work is to constrain the strength and structure of the magnetic field associated with the environment of the radio source 3C 449 by using observations of Faraday rotation, which we model with a structure function technique, and by comparison with numerical simulations.
GUIDETTI, DARIA, Laing R. A., Murgia M., Govoni F., GREGORINI, LORETTA, Parma P.   +5 more
openaire   +1 more source

ALMA ACA Detection of Submillimeter Emission Associated with the Western Hot Spot of the Radio Galaxy Pictor A

The Astrophysical Journal, 2023
In order to investigate the far-infrared excess detected from the western hot spot of the radio galaxy Pictor A with the Herschel observatory, submillimeter photometry is performed with the Atacama Compact Array (ACA) of the Atacama Large Millimeter ...
Naoki Isobe, Hiroshi Nagai, Motoki Kino, Shunsuke Baba, Takao Nakagawa, Yuji Sunada, Makoto Tashiro   +6 more
doaj   +1 more source

Combined Fit of Spectrum and Composition for FR0 Radio-galaxy-emitted Ultra–high energy Cosmic Rays with Resulting Secondary Photons and Neutrinos

The Astrophysical Journal
This study comprehensively investigates the gamma-ray dim population of Fanaroff–Riley Type 0 (FR0) radio galaxies as potentially significant sources of ultra–high energy cosmic rays (UHECRs, E > 10 ^18 eV) detected on Earth.
Jon Paul Lundquist, Serguei Vorobiov, Lukas Merten, Anita Reimer, Margot Boughelilba, Paolo Da Vela, Fabrizio Tavecchio, Giacomo Bonnoli, Chiara Righi   +8 more
doaj   +1 more source

Acceleration of Ultra-high-energy Cosmic Rays in the Kiloparsec-scale Jets of Nearby Radio Galaxies

The Astrophysical Journal Letters
Radio galaxies have long been considered as potential sources of ultra-high-energy cosmic rays (UHECRs). Recent analyses of the UHECR spectrum, composition, and arrival directions indicate that the nearest radio galaxy, Centaurus A, could be linked to ...
Jie-Shuang Wang, Brian Reville, Frank M. Rieger, Felix A. Aharonian   +3 more
doaj   +1 more source

Redshift of southern radio galaxies

, 1996
We report optical spectroscopy and redshift determination for 22 radio galaxies, extracted from the Ekers et al. (1989) compilation. Selected sources, which have both Fanaroff & Riley type I and II radio morphology and are classified as elliptical ...
R. Falomo, J. E. Pesce, R. Scarpa
core   +1 more source

Exploring Neutral Hydrogen in Radio MOlecular Hydrogen Emission Galaxies (MOHEGs) and Prospects with the SKA

The Astrophysical Journal
Empirical studies of cold gas content are essential for comprehending the star formation activities and evolution in galaxies. However, it is not straightforward to understand these processes because they depend on various physical properties of the ...
Sai Wagh, Mamta Pandey-Pommier, Nirupam Roy, Md Rashid, Alexandre Marcowith, Chinnathambi Muthumariappan, Ramya Sethuram, Subhashis Roy, Bruno Guiderdoni   +8 more
doaj   +1 more source

Search for inverse Compton x-rays from the lobes of Fornax A x-rays from radio galaxies straddling the Fanaroff-Riley transition [PDF]

, 1994
Two related studies of radio galaxies are covered in this report. The first is a search for inverse Compton x-rays from the lobes of Fornax A. In this study, a ROSAT position sensitive proportional counter image of Fornax A (NGC 1316) is presented, and ...
Feigelson, Eric D.
core  

Cosmic downsizing of powerful radio galaxies to low radio luminosities [PDF]

, 2015
E.E.R. acknowledges financial support from NWO (grant number: NWO-TOP LOFAR 614.001.006). E.E.R. and J.A. thank the Leiden/ESA astrophysics program for summer students (LEAPS) which supported J.A. in Leiden.Aims. At bright radio powers (P1.4 GHz > 1025 W/
Best, P., E. E. Rigby, H. J. A. Röttgering, Röttgering, H., Rigby, E., Rosario, D., D. Rosario, Rigby, E.E., Argyle, J., P. N. Best, Best, P.N., Röttgering, H.J.A., Argyle, Joshua, J. Argyle   +13 more
core   +1 more source

A Morphological Identification and Study of Radio Galaxies from LoTSS DR2. I. The “Winged” Radio Galaxies

The Astrophysical Journal Supplement Series
We conducted an extensive identification and analysis of various morphological classes and subclasses of radio galaxies using the latest high-resolution data from the second data release of the LOFAR Two-metre Sky Survey.
Soumen Kumar Bera, Taotao Fang, Tapan K. Sasmal, M. Kunert-Bajraszewska, Xuelei Chen, Soumen Mondal   +5 more
doaj   +1 more source