Results 111 to 120 of about 37,310 (215)

A Radio Study of Persistent Radio Sources in Nearby Dwarf Galaxies: Implications for Fast Radio Bursts

open access: yesThe Astrophysical Journal
We present 1–12 GHz Karl G. Jansky Very Large Array observations of nine off-nuclear persistent radio sources (PRSs) in nearby ( z ≲ 0.055) dwarf galaxies, along with high-resolution European VLBI Network observations for one of them at 1.7 GHz.
Y. Dong   +19 more
doaj   +1 more source

An Image-based Search for Pulsar Candidates in the MeerKAT Bulge Survey

open access: yesThe Astrophysical Journal
We report on the results of an image-based search for pulsar candidates toward the Galactic bulge. We used mosaic images from the MeerKAT radio telescope that were taken as part of a 173 deg ^2 survey of the bulge and Galactic center of our Galaxy at L ...
Dale A. Frail   +15 more
doaj   +1 more source

New Constraints on the Evolution of the MH i−M⋆ Scaling Relation Combining CHILES and MIGHTEE-H i Data

open access: yesThe Astrophysical Journal
The improved sensitivity of interferometric facilities to the 21 cm line of atomic hydrogen (H i ) enables studies of its properties in galaxies beyond the local Universe.
Alessandro Bianchetti   +25 more
doaj   +1 more source

FAST Survey of H i and OH Absorption toward Extragalactic Radio Sources

open access: yesThe Astrophysical Journal
Neutral atomic hydrogen and molecular gas in the host galaxies of radio active galactic nuclei can be traced using H i 21 cm and OH-1667 MHz absorption lines to understand the fueling and feedback processes.
Yogesh Chandola   +7 more
doaj   +1 more source

A Linearly Polarized Merger Shock Down to 550 MHz: A uGMRT Study of the Merging Cluster A746

open access: yesThe Astrophysical Journal
Radio relics, arc-like polarized sources with highly aligned magnetic fields, are typically found on the outskirts of merging galaxy clusters. The magnetoionic media responsible for the significant coherence observed in radio relics remain poorly ...
Arpan Pal   +2 more
doaj   +1 more source

On the variability of extragalactic sources in the decimeter range and their correlation with galactic structures [PDF]

open access: yes
It is shown that all of the extragalactic radio sources presently known are variable in the decimeter range (lambda or = 30 cm) and are projected on the large continuum radio structure of the galaxy: loops, spurs, ridges.
Shapirovskaya, N. Y.
core   +1 more source

Evolution of powerful extragalactic radio sources. [PDF]

open access: yesProc Natl Acad Sci U S A, 1995
Readhead AC.
europepmc   +1 more source

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