Results 11 to 20 of about 93,637 (312)

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

open access: yesThe 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   +3 more
doaj   +3 more sources

Challenges for Fast Radio Bursts as Multimessenger Sources from Binary Neutron Star Mergers [PDF]

open access: goldThe Astrophysical Journal
Fast radio bursts (FRBs) are millisecond-duration transients from extragalactic sources, with their origins remaining a topic of active debate. Among the proposed progenitors, binary neutron star (BNS) mergers are compelling candidates for some ...
Mohit Bhardwaj   +4 more
doaj   +2 more sources

Wide-Angle-Tail (WAT) Radio Sources

open access: yesGalaxies, 2023
We review the properties of Wide-Angle-Tail (WAT) radio sources. The WAT radio sources are powerful, bent radio sources typically associated with the dominant galaxy in a cluster or group.
Christopher P. O’Dea, Stefi A. Baum
doaj   +1 more source

Giant radio sources [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1999
14 pages with 12 figures, MNRAS LaTex. Accepted for publication in MNRAS.
Ishwara-Chandra, CH, Saikia, DJ
openaire   +2 more sources

Compact radio sources: Triggering and feedback

open access: yesAstronomische Nachrichten, 2021
AbstractCSS/GPS objects represent a key stage in the evolution of powerful radio AGN in which the jets are expanding through the denser, kpc‐scale ISM in the host galaxies. Therefore, it is important both to understand how such radio AGN are triggered as galaxies evolve and to directly quantify the impact of the outflows induced by the jet‐cloud ...
Clive Tadhunter   +3 more
openaire   +2 more sources

Discovery of 178 Giant Radio Galaxies in 1059 deg2 of the Rapid ASKAP Continuum Survey at 888 MHz

open access: yesGalaxies, 2021
We report the results of a visual inspection of images of the Rapid ASKAP Continuum Survey (RACS) in search of extended radio galaxies (ERG) that reach or exceed linear sizes on the order of one Megaparsec. We searched a contiguous area of 1059 deg2 from
Heinz Andernach   +2 more
doaj   +1 more source

Bent It Like FRs: Extended Radio AGN in the COSMOS Field and Their Large-Scale Environment

open access: yesGalaxies, 2021
A fascinating topic in radio astronomy is how to associate the complexity of observed radio structures with their environment in order to understand their interplay and the reason for the plethora of radio structures found in surveys. In this project, we
Eleni Vardoulaki   +5 more
doaj   +1 more source

3C 236: Radio Source, Interrupted? [PDF]

open access: yesThe Astronomical Journal, 2001
We present new HST STIS/MAMA near-UV images and archival WFPC2 V and R band images which reveal the presence of four star forming regions in an arc along the edge of the dust lane in the giant (4 Mpc) radio galaxy 3C236. Two of the star forming regions are relatively young with ages of order 1E7 yr, while the other two are older with ages of order 1E8 -
O'Dea, Christopher P.   +7 more
openaire   +2 more sources

Superluminal Radio Sources [PDF]

open access: yesSymposium - International Astronomical Union, 1982
Several compact radio sources studied with VLBI show apparent transverse velocities much greater than the speed of light. This review is a summary of VLBI observations of these “superluminal” sources as of August 1981. The physical models proposed to explain this phenomenon are also discussed.
Cohen, M. H., Unwin, S. C.
openaire   +2 more sources

Equipartition Jet Model for the Seyfert 1 Galaxy 3C120 [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2003
The motion of 3C120 Jet relative to the core is reasonably uniform and the VLBI scale jet connects outwards to a VLA ˜ 100 kpc scale. We measured the jet width variation from the center and found some indication of a power law which indicates the jet ...
Siek Hyung
doaj   +1 more source

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